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1 | #!/usr/bin/env python |
2 | # | |
3 | # Copyright (c) 2019 by VMware, Inc. ("VMware") | |
4 | # Used Copyright (c) 2018 by Network Device Education Foundation, Inc. ("NetDEF") | |
5 | # in this file. | |
6 | # | |
7 | # Permission to use, copy, modify, and/or distribute this software | |
8 | # for any purpose with or without fee is hereby granted, provided | |
9 | # that the above copyright notice and this permission notice appear | |
10 | # in all copies. | |
11 | # | |
12 | # THE SOFTWARE IS PROVIDED "AS IS" AND VMWARE DISCLAIMS ALL WARRANTIES | |
13 | # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
14 | # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VMWARE BE LIABLE FOR | |
15 | # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY | |
16 | # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
17 | # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS | |
18 | # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
19 | # OF THIS SOFTWARE. | |
20 | # | |
21 | ||
22 | """ | |
23 | Following tests are covered to test BGP Gracefull Restart functionality. | |
24 | Basic Common Test steps for all the test case below : | |
25 | - Create topology (setup module) | |
26 | Creating 2 routers topology, r1, r2 in IBGP | |
27 | - Bring up topology | |
28 | - Verify for bgp to converge | |
29 | - Configure BGP Garceful Restart on both the routers. | |
30 | ||
31 | 1. Helper BGP router R1, mark and unmark IPV4 routes | |
32 | as stale as the restarting router R2 come up within the restart time. | |
33 | 2. Helper BGP router R1, mark IPV4 routes as stale and | |
34 | deletes them as the restarting router R2 did-not come up within restart | |
35 | time. | |
36 | 3. Restart BGP router R1, detects it is connected to R2, | |
37 | which is a helper router. Verify the restart capability i.e. R bit | |
38 | are sent after R1 reloads and comes back. | |
39 | 4. Verify that the restarting node sets "R" bit while sending the | |
40 | BGP open messages after the node restart, only if GR is enabled. | |
41 | 5. Verify if restarting node resets R bit in BGP open message | |
42 | during normal BGP session flaps as well, even when GR restarting mode is enabled. | |
43 | Here link flap happen due to interface UP/DOWN. | |
44 | 6. Verify if restarting node resets R bit in BGP open message | |
45 | during normal BGP session flaps as well, even when GR restarting mode is enabled. | |
46 | Here link flap happen due to neigh router restarts | |
47 | 7. Verify if restarting node resets R bit in BGP open message | |
48 | during normal BGP session flaps when GR helper mode is enabled. | |
49 | Here link flap happen due to interface UP/DOWN. | |
50 | 8. Verify if restarting node resets R bit in BGP open message | |
51 | during normal BGP session flaps when GR helper mode is enabled. | |
52 | Here link flap happen due to neigh router restarts. | |
53 | 9. Verify that restarting nodes set "F" bit while sending | |
54 | the BGP open messages after it restarts, only when BGP GR is enabled. | |
55 | 10. Verify that restarting nodes reset "F" bit while sending | |
56 | the BGP open messages after it's restarts, when BGP GR is **NOT** enabled. | |
57 | 11. Verify that only GR helper routers keep the stale | |
58 | route entries, not any GR disabled router. | |
59 | 12. Verify that GR helper routers keeps all the routes received | |
60 | from restarting node if both the routers are configured as GR restarting node. | |
61 | 13. Verify that GR helper routers delete all the routes | |
62 | received from a node if both the routers are configured as GR helper node. | |
63 | 14. Test Objective : After BGP neighborship is established and GR capability | |
64 | is exchanged, transition helper router to disabled state. | |
65 | 15.Test Objective : After BGP neighborship is established and GR capability | |
66 | is exchanged, transition disabled router to helper state. | |
67 | 16. Verify transition from Global Restarting to Disable and then | |
68 | Global Disable to Restarting. | |
69 | 17. Verify transition from Global Helper to Disable and then Global | |
70 | Disable to Helper. | |
71 | 18. Verify transition from Global Restart to Helper and then Global | |
72 | Helper to Restart. | |
73 | 19. Verify transition from Peer-level helper to Global Restarting. | |
74 | 20. Verify transition from Peer-level restart to Global Restart. | |
75 | 21. Verify transition from Peer-level disabled to Global Restart. | |
76 | 22. Verify Peer-level inherit from Global Restarting mode. | |
77 | 23. Verify transition from Peer-level helper to Global inherit helper. | |
78 | 24. Verify transition from Peer-level restart to Global inherit helper. | |
79 | 25. Verify transition from Peer-level disbale to Global inherit helper. | |
80 | 26. Verify default GR functional mode is Helper. | |
81 | 27. Verify transition from Peer-level Helper to Global Disable. | |
82 | 28. Verify transition from Peer-level Restarting to Global Disable. | |
83 | 29. Verify transition from Peer-level Disable to Global Disable. | |
84 | 30. Verfiy Peer-level inherit from Global Disable mode. | |
85 | ||
86 | """ | |
87 | ||
88 | import os | |
89 | import sys | |
90 | import json | |
91 | import time | |
92 | import inspect | |
93 | import pytest | |
94 | from time import sleep | |
95 | ||
96 | # Save the Current Working Directory to find configuration files. | |
97 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
98 | sys.path.append(os.path.join("../")) | |
99 | sys.path.append(os.path.join("../lib/")) | |
100 | ||
101 | # pylint: disable=C0413 | |
102 | # Import topogen and topotest helpers | |
103 | from lib import topotest | |
104 | from lib.topogen import Topogen, TopoRouter, get_topogen | |
105 | from lib.topolog import logger | |
3dfd384e | 106 | |
35ba1e3d KK |
107 | # Required to instantiate the topology builder class. |
108 | from mininet.topo import Topo | |
109 | ||
110 | # Import topoJson from lib, to create topology and initial configuration | |
111 | from lib.topojson import build_topo_from_json, build_config_from_json | |
112 | from lib.bgp import ( | |
113 | clear_bgp, | |
114 | verify_bgp_rib, | |
115 | verify_graceful_restart, | |
116 | create_router_bgp, | |
117 | verify_r_bit, | |
118 | verify_f_bit, | |
119 | verify_bgp_convergence, | |
120 | verify_graceful_restart_timers, | |
121 | ) | |
122 | ||
123 | from lib.common_config import ( | |
124 | write_test_header, | |
125 | reset_config_on_routers, | |
126 | start_topology, | |
127 | kill_router_daemons, | |
128 | start_router_daemons, | |
129 | verify_rib, | |
130 | check_address_types, | |
131 | write_test_footer, | |
132 | check_router_status, | |
133 | shutdown_bringup_interface, | |
134 | step, | |
135 | kill_mininet_routers_process, | |
136 | get_frr_ipv6_linklocal, | |
137 | create_route_maps, | |
701a0192 | 138 | required_linux_kernel_version, |
35ba1e3d KK |
139 | ) |
140 | ||
141 | # Reading the data from JSON File for topology and configuration creation | |
142 | jsonFile = "{}/bgp_gr_topojson_topo1.json".format(CWD) | |
143 | try: | |
144 | with open(jsonFile, "r") as topoJson: | |
145 | topo = json.load(topoJson) | |
146 | except IOError: | |
147 | logger.info("Could not read file:", jsonFile) | |
148 | ||
149 | ||
150 | # Global variables | |
151 | NEXT_HOP_IP = {"ipv4": "192.168.1.10", "ipv6": "fd00:0:0:1::10"} | |
152 | NEXT_HOP_IP_1 = {"ipv4": "192.168.0.1", "ipv6": "fd00::1"} | |
153 | NEXT_HOP_IP_2 = {"ipv4": "192.168.0.2", "ipv6": "fd00::2"} | |
154 | BGP_CONVERGENCE = False | |
155 | GR_RESTART_TIMER = 20 | |
156 | PREFERRED_NEXT_HOP = "link_local" | |
157 | ||
158 | ||
159 | class GenerateTopo(Topo): | |
160 | """ | |
161 | Test topology builder | |
162 | ||
163 | * `Topo`: Topology object | |
164 | """ | |
165 | ||
166 | def build(self, *_args, **_opts): | |
167 | "Build function" | |
168 | tgen = get_topogen(self) | |
169 | ||
170 | # This function only purpose is to create topology | |
171 | # as defined in input json file. | |
172 | # | |
173 | # Create topology (setup module) | |
174 | # Creating 2 routers topology, r1, r2in IBGP | |
175 | # Bring up topology | |
176 | ||
177 | # Building topology from json file | |
178 | build_topo_from_json(tgen, topo) | |
179 | ||
180 | ||
181 | def setup_module(mod): | |
182 | """ | |
183 | Sets up the pytest environment | |
184 | ||
185 | * `mod`: module name | |
186 | """ | |
187 | ||
188 | global ADDR_TYPES | |
189 | ||
3dfd384e | 190 | # Required linux kernel version for this suite to run. |
701a0192 | 191 | result = required_linux_kernel_version("4.15") |
955212d9 | 192 | if result is not True: |
193 | pytest.skip("Kernel requirements are not met") | |
3dfd384e | 194 | |
35ba1e3d KK |
195 | testsuite_run_time = time.asctime(time.localtime(time.time())) |
196 | logger.info("Testsuite start time: {}".format(testsuite_run_time)) | |
197 | logger.info("=" * 40) | |
198 | ||
199 | logger.info("Running setup_module to create topology") | |
200 | ||
201 | # This function initiates the topology build with Topogen... | |
202 | tgen = Topogen(GenerateTopo, mod.__name__) | |
203 | # ... and here it calls Mininet initialization functions. | |
204 | ||
205 | # Kill stale mininet routers and process | |
206 | kill_mininet_routers_process(tgen) | |
207 | ||
208 | # Starting topology, create tmp files which are loaded to routers | |
209 | # to start deamons and then start routers | |
210 | start_topology(tgen) | |
211 | ||
212 | # Creating configuration from JSON | |
213 | build_config_from_json(tgen, topo) | |
214 | ||
215 | # Don't run this test if we have any failure. | |
216 | if tgen.routers_have_failure(): | |
217 | pytest.skip(tgen.errors) | |
218 | ||
219 | # Api call verify whether BGP is converged | |
220 | ADDR_TYPES = check_address_types() | |
221 | ||
222 | for addr_type in ADDR_TYPES: | |
223 | BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo) | |
224 | assert BGP_CONVERGENCE is True, "setup_module : Failed \n Error:" " {}".format( | |
225 | BGP_CONVERGENCE | |
226 | ) | |
227 | ||
228 | logger.info("Running setup_module() done") | |
229 | ||
230 | ||
231 | def teardown_module(mod): | |
232 | """ | |
233 | Teardown the pytest environment | |
234 | ||
235 | * `mod`: module name | |
236 | """ | |
237 | ||
238 | logger.info("Running teardown_module to delete topology") | |
239 | ||
240 | tgen = get_topogen() | |
241 | ||
242 | # Stop toplogy and Remove tmp files | |
243 | tgen.stop_topology() | |
244 | ||
245 | logger.info( | |
246 | "Testsuite end time: {}".format(time.asctime(time.localtime(time.time()))) | |
247 | ) | |
248 | logger.info("=" * 40) | |
249 | ||
250 | ||
251 | def configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut, peer): | |
252 | """ | |
253 | This function groups the repetitive function calls into one function. | |
254 | """ | |
255 | ||
256 | result = create_router_bgp(tgen, topo, input_dict) | |
257 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
258 | ||
259 | for addr_type in ADDR_TYPES: | |
260 | clear_bgp(tgen, addr_type, dut) | |
261 | ||
262 | return True | |
263 | ||
264 | ||
265 | def next_hop_per_address_family( | |
266 | tgen, dut, peer, addr_type, next_hop_dict, preferred_next_hop=PREFERRED_NEXT_HOP | |
267 | ): | |
268 | """ | |
269 | This function returns link_local or global next_hop per address-family | |
270 | """ | |
271 | ||
272 | intferface = topo["routers"][peer]["links"]["{}-link1".format(dut)]["interface"] | |
273 | if addr_type == "ipv6" and "link_local" in preferred_next_hop: | |
274 | next_hop = get_frr_ipv6_linklocal(tgen, peer, intf=intferface) | |
275 | else: | |
276 | next_hop = next_hop_dict[addr_type] | |
277 | ||
278 | return next_hop | |
279 | ||
280 | ||
281 | def test_BGP_GR_TC_46_p1(request): | |
282 | """ | |
283 | Test Objective : transition from Peer-level helper to Global Restarting | |
284 | Global Mode : GR Restarting | |
285 | PerPeer Mode : GR Helper | |
286 | GR Mode effective : GR Helper | |
287 | ||
288 | """ | |
289 | ||
290 | tgen = get_topogen() | |
291 | tc_name = request.node.name | |
292 | write_test_header(tc_name) | |
293 | ||
294 | # Check router status | |
295 | check_router_status(tgen) | |
296 | ||
297 | # Don't run this test if we have any failure. | |
298 | if tgen.routers_have_failure(): | |
299 | pytest.skip(tgen.errors) | |
300 | ||
301 | # Creating configuration from JSON | |
302 | reset_config_on_routers(tgen) | |
303 | ||
304 | step( | |
305 | "Configure R1 and R2 as GR restarting node in global" | |
306 | " and helper in per-Peer-level" | |
307 | ) | |
308 | ||
309 | input_dict = { | |
310 | "r1": { | |
311 | "bgp": { | |
312 | "graceful-restart": {"graceful-restart": True,}, | |
313 | "address_family": { | |
314 | "ipv4": { | |
315 | "unicast": { | |
316 | "neighbor": { | |
317 | "r2": { | |
318 | "dest_link": { | |
319 | "r1-link1": {"graceful-restart-helper": True} | |
320 | } | |
321 | } | |
322 | } | |
323 | } | |
324 | }, | |
325 | "ipv6": { | |
326 | "unicast": { | |
327 | "neighbor": { | |
328 | "r2": { | |
329 | "dest_link": { | |
330 | "r1-link1": {"graceful-restart-helper": True} | |
331 | } | |
332 | } | |
333 | } | |
334 | } | |
335 | }, | |
336 | }, | |
337 | } | |
338 | }, | |
339 | "r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
340 | } | |
341 | ||
342 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
343 | ||
344 | step("Verify on R2 that R1 advertises GR capabilities as a restarting node") | |
345 | ||
346 | for addr_type in ADDR_TYPES: | |
347 | result = verify_graceful_restart( | |
348 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
349 | ) | |
350 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
351 | tc_name, result | |
352 | ) | |
353 | ||
354 | step("Kill BGP on R2") | |
355 | ||
356 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
357 | ||
358 | step( | |
359 | "Verify that R1 keeps the stale entries in RIB & FIB and R2 keeps stale entries in FIB using" | |
360 | ) | |
361 | ||
362 | for addr_type in ADDR_TYPES: | |
363 | protocol = "bgp" | |
364 | next_hop = next_hop_per_address_family( | |
365 | tgen, "r2", "r1", addr_type, NEXT_HOP_IP_1 | |
366 | ) | |
367 | input_topo = {"r1": topo["routers"]["r1"]} | |
368 | result = verify_rib(tgen, addr_type, "r2", input_topo, next_hop, protocol) | |
369 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
370 | tc_name, result | |
371 | ) | |
372 | ||
373 | for addr_type in ADDR_TYPES: | |
374 | next_hop = next_hop_per_address_family( | |
375 | tgen, "r1", "r2", addr_type, NEXT_HOP_IP_2 | |
376 | ) | |
377 | input_topo = {"r2": topo["routers"]["r2"]} | |
378 | result = verify_bgp_rib(tgen, addr_type, "r1", input_topo, next_hop) | |
379 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
380 | tc_name, result | |
381 | ) | |
382 | ||
383 | result = verify_rib(tgen, addr_type, "r1", input_topo, next_hop, protocol) | |
384 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
385 | tc_name, result | |
386 | ) | |
387 | ||
388 | step( | |
389 | "Bring up BGP on R1 and remove Peer-level GR config" | |
390 | " from R1 following by a session reset" | |
391 | ) | |
392 | ||
393 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
394 | ||
395 | input_dict = { | |
396 | "r1": { | |
397 | "bgp": { | |
398 | "address_family": { | |
399 | "ipv4": { | |
400 | "unicast": { | |
401 | "neighbor": { | |
402 | "r2": { | |
403 | "dest_link": { | |
404 | "r1-link1": {"graceful-restart-helper": False} | |
405 | } | |
406 | } | |
407 | } | |
408 | } | |
409 | }, | |
410 | "ipv6": { | |
411 | "unicast": { | |
412 | "neighbor": { | |
413 | "r2": { | |
414 | "dest_link": { | |
415 | "r1-link1": {"graceful-restart-helper": False} | |
416 | } | |
417 | } | |
418 | } | |
419 | } | |
420 | }, | |
421 | } | |
422 | } | |
423 | } | |
424 | } | |
425 | ||
426 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
427 | ||
428 | step("Verify on R2 that R1 advertises GR capabilities as a restarting node") | |
429 | ||
430 | input_dict = { | |
431 | "r1": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
432 | "r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
433 | } | |
434 | ||
435 | for addr_type in ADDR_TYPES: | |
436 | result = verify_graceful_restart( | |
437 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
438 | ) | |
439 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
440 | tc_name, result | |
441 | ) | |
442 | ||
443 | step("Kill BGP on R1") | |
444 | ||
445 | kill_router_daemons(tgen, "r1", ["bgpd"]) | |
446 | ||
447 | step( | |
448 | "Verify that R1 keeps the stale entries in FIB command and R2 keeps stale entries in RIB & FIB" | |
449 | ) | |
450 | ||
451 | for addr_type in ADDR_TYPES: | |
452 | protocol = "bgp" | |
453 | next_hop = next_hop_per_address_family( | |
454 | tgen, "r1", "r2", addr_type, NEXT_HOP_IP_2 | |
455 | ) | |
456 | input_topo = {"r2": topo["routers"]["r2"]} | |
457 | result = verify_rib(tgen, addr_type, "r1", input_topo, next_hop, protocol) | |
458 | assert ( | |
459 | result is True | |
460 | ), "Testcase {} : Failed \n Routes are still present \n Error {}".format( | |
461 | tc_name, result | |
462 | ) | |
463 | ||
464 | for addr_type in ADDR_TYPES: | |
465 | next_hop = next_hop_per_address_family( | |
466 | tgen, "r2", "r1", addr_type, NEXT_HOP_IP_1 | |
467 | ) | |
468 | input_topo = {"r1": topo["routers"]["r1"]} | |
469 | result = verify_bgp_rib(tgen, addr_type, "r2", input_topo, next_hop) | |
470 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
471 | tc_name, result | |
472 | ) | |
473 | ||
474 | result = verify_rib(tgen, addr_type, "r2", input_topo, next_hop, protocol) | |
475 | assert ( | |
476 | result is True | |
477 | ), "Testcase {} : Failed \n Routes are still present \n Error {}".format( | |
478 | tc_name, result | |
479 | ) | |
480 | ||
481 | step("Start BGP on R1") | |
482 | ||
483 | start_router_daemons(tgen, "r1", ["bgpd"]) | |
484 | ||
485 | write_test_footer(tc_name) | |
486 | ||
487 | ||
488 | def test_BGP_GR_TC_50_p1(request): | |
489 | """ | |
490 | Test Objective : Transition from Peer-level helper to Global inherit helper | |
491 | Global Mode : None | |
492 | PerPeer Mode : Helper | |
493 | GR Mode effective : GR Helper | |
494 | ||
495 | """ | |
496 | ||
497 | tgen = get_topogen() | |
498 | tc_name = request.node.name | |
499 | write_test_header(tc_name) | |
500 | ||
501 | # Check router status | |
502 | check_router_status(tgen) | |
503 | ||
504 | # Don't run this test if we have any failure. | |
505 | if tgen.routers_have_failure(): | |
506 | pytest.skip(tgen.errors) | |
507 | ||
508 | # Creating configuration from JSON | |
509 | reset_config_on_routers(tgen) | |
510 | ||
511 | step( | |
512 | "Configure R1 as GR helper node at per Peer-level for R2" | |
513 | " and configure R2 as global restarting node." | |
514 | ) | |
515 | ||
516 | input_dict = { | |
517 | "r1": { | |
518 | "bgp": { | |
519 | "address_family": { | |
520 | "ipv4": { | |
521 | "unicast": { | |
522 | "neighbor": { | |
523 | "r2": { | |
524 | "dest_link": { | |
525 | "r1-link1": {"graceful-restart-helper": True} | |
526 | } | |
527 | } | |
528 | } | |
529 | } | |
530 | }, | |
531 | "ipv6": { | |
532 | "unicast": { | |
533 | "neighbor": { | |
534 | "r2": { | |
535 | "dest_link": { | |
536 | "r1-link1": {"graceful-restart-helper": True} | |
537 | } | |
538 | } | |
539 | } | |
540 | } | |
541 | }, | |
542 | } | |
543 | } | |
544 | }, | |
545 | "r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
546 | } | |
547 | ||
548 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
549 | ||
550 | step("Verify on R2 that R1 advertises GR capabilities as a helper node") | |
551 | ||
552 | for addr_type in ADDR_TYPES: | |
553 | result = verify_graceful_restart( | |
554 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
555 | ) | |
556 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
557 | tc_name, result | |
558 | ) | |
559 | ||
560 | step("Kill BGP on R2") | |
561 | ||
562 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
563 | ||
564 | step( | |
565 | "Verify that R2 keeps the stale entries in FIB & R1 keeps stale entries in RIB & FIB" | |
566 | ) | |
567 | ||
568 | for addr_type in ADDR_TYPES: | |
569 | protocol = "bgp" | |
570 | next_hop = next_hop_per_address_family( | |
571 | tgen, "r2", "r1", addr_type, NEXT_HOP_IP_1 | |
572 | ) | |
573 | input_topo = {"r1": topo["routers"]["r1"]} | |
574 | result = verify_rib(tgen, addr_type, "r2", input_topo, next_hop, protocol) | |
575 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
576 | tc_name, result | |
577 | ) | |
578 | ||
579 | for addr_type in ADDR_TYPES: | |
580 | next_hop = next_hop_per_address_family( | |
581 | tgen, "r1", "r2", addr_type, NEXT_HOP_IP_2 | |
582 | ) | |
583 | input_topo = {"r2": topo["routers"]["r2"]} | |
584 | result = verify_bgp_rib(tgen, addr_type, "r1", input_topo, next_hop) | |
585 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
586 | tc_name, result | |
587 | ) | |
588 | ||
589 | result = verify_rib(tgen, addr_type, "r1", input_topo, next_hop, protocol) | |
590 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
591 | tc_name, result | |
592 | ) | |
593 | ||
594 | step("Bring up BGP on R2 and remove Peer-level GR config from R1 ") | |
595 | ||
596 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
597 | ||
598 | input_dict = { | |
599 | "r1": { | |
600 | "bgp": { | |
601 | "address_family": { | |
602 | "ipv4": { | |
603 | "unicast": { | |
604 | "neighbor": { | |
605 | "r2": { | |
606 | "dest_link": { | |
607 | "r1-link1": {"graceful-restart-helper": False} | |
608 | } | |
609 | } | |
610 | } | |
611 | } | |
612 | }, | |
613 | "ipv6": { | |
614 | "unicast": { | |
615 | "neighbor": { | |
616 | "r2": { | |
617 | "dest_link": { | |
618 | "r1-link1": {"graceful-restart-helper": False} | |
619 | } | |
620 | } | |
621 | } | |
622 | } | |
623 | }, | |
624 | } | |
625 | } | |
626 | } | |
627 | } | |
628 | ||
629 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
630 | ||
631 | step("Verify on R2 that R1 still advertises GR capabilities as a helper node") | |
632 | ||
633 | input_dict = { | |
634 | "r1": {"bgp": {"graceful-restart": {"graceful-restart-helper": True}}}, | |
635 | "r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
636 | } | |
637 | ||
638 | for addr_type in ADDR_TYPES: | |
639 | result = verify_graceful_restart( | |
640 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
641 | ) | |
642 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
643 | tc_name, result | |
644 | ) | |
645 | ||
646 | step("Kill BGP on R2") | |
647 | ||
648 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
649 | ||
650 | step( | |
651 | "Verify that R2 keeps the stale entries in FIB & R1 keeps stale entries in RIB & FIB" | |
652 | ) | |
653 | ||
654 | for addr_type in ADDR_TYPES: | |
655 | protocol = "bgp" | |
656 | next_hop = next_hop_per_address_family( | |
657 | tgen, "r2", "r1", addr_type, NEXT_HOP_IP_1 | |
658 | ) | |
659 | input_topo = {"r1": topo["routers"]["r1"]} | |
660 | result = verify_rib(tgen, addr_type, "r2", input_topo, next_hop, protocol) | |
661 | assert ( | |
662 | result is True | |
663 | ), "Testcase {} : Failed \n Routes are still present \n Error {}".format( | |
664 | tc_name, result | |
665 | ) | |
666 | ||
667 | for addr_type in ADDR_TYPES: | |
668 | next_hop = next_hop_per_address_family( | |
669 | tgen, "r1", "r2", addr_type, NEXT_HOP_IP_2 | |
670 | ) | |
671 | input_topo = {"r2": topo["routers"]["r2"]} | |
672 | result = verify_bgp_rib(tgen, addr_type, "r1", input_topo, next_hop) | |
673 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
674 | tc_name, result | |
675 | ) | |
676 | ||
677 | result = verify_rib(tgen, addr_type, "r1", input_topo, next_hop, protocol) | |
678 | assert ( | |
679 | result is True | |
680 | ), "Testcase {} : Failed \n Routes are still present \n Error {}".format( | |
681 | tc_name, result | |
682 | ) | |
683 | ||
684 | step("Start BGP on R2") | |
685 | ||
686 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
687 | ||
688 | write_test_footer(tc_name) | |
689 | ||
690 | ||
691 | def test_BGP_GR_TC_51_p1(request): | |
692 | """ | |
693 | Test Objective : Transition from Peer-level restarting to Global inherit helper | |
694 | Global Mode : None | |
695 | PerPeer Mode : GR Restart | |
696 | GR Mode effective : GR Restart | |
697 | ||
698 | """ | |
699 | ||
700 | tgen = get_topogen() | |
701 | tc_name = request.node.name | |
702 | write_test_header(tc_name) | |
703 | ||
704 | # Check router status | |
705 | check_router_status(tgen) | |
706 | ||
707 | # Don't run this test if we have any failure. | |
708 | if tgen.routers_have_failure(): | |
709 | pytest.skip(tgen.errors) | |
710 | ||
711 | # Creating configuration from JSON | |
712 | reset_config_on_routers(tgen) | |
713 | ||
714 | step("Configure R1 as GR restarting node at per Peer-level for R2") | |
715 | ||
716 | input_dict = { | |
717 | "r1": { | |
718 | "bgp": { | |
719 | "address_family": { | |
720 | "ipv4": { | |
721 | "unicast": { | |
722 | "neighbor": { | |
723 | "r2": { | |
724 | "dest_link": { | |
725 | "r1-link1": {"graceful-restart": True} | |
726 | } | |
727 | } | |
728 | } | |
729 | } | |
730 | }, | |
731 | "ipv6": { | |
732 | "unicast": { | |
733 | "neighbor": { | |
734 | "r2": { | |
735 | "dest_link": { | |
736 | "r1-link1": {"graceful-restart": True} | |
737 | } | |
738 | } | |
739 | } | |
740 | } | |
741 | }, | |
742 | } | |
743 | } | |
744 | }, | |
745 | "r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
746 | } | |
747 | ||
748 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
749 | step("Verify on R2 that R1 advertises GR capabilities as a restarting node") | |
750 | ||
751 | for addr_type in ADDR_TYPES: | |
752 | result = verify_graceful_restart( | |
753 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
754 | ) | |
755 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
756 | tc_name, result | |
757 | ) | |
758 | ||
759 | step("Kill BGP on R1") | |
760 | ||
761 | kill_router_daemons(tgen, "r1", ["bgpd"]) | |
762 | ||
763 | step( | |
764 | "Verify that R1 keeps the stale entries in FIB & R2 keeps stale entries in RIB & FIB" | |
765 | ) | |
766 | ||
767 | for addr_type in ADDR_TYPES: | |
768 | protocol = "bgp" | |
769 | next_hop = next_hop_per_address_family( | |
770 | tgen, "r1", "r2", addr_type, NEXT_HOP_IP_2 | |
771 | ) | |
772 | input_topo = {"r2": topo["routers"]["r2"]} | |
773 | result = verify_rib(tgen, addr_type, "r1", input_topo, next_hop, protocol) | |
774 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
775 | tc_name, result | |
776 | ) | |
777 | ||
778 | for addr_type in ADDR_TYPES: | |
779 | next_hop = next_hop_per_address_family( | |
780 | tgen, "r2", "r1", addr_type, NEXT_HOP_IP_1 | |
781 | ) | |
782 | input_topo = {"r1": topo["routers"]["r1"]} | |
783 | result = verify_bgp_rib(tgen, addr_type, "r2", input_topo, next_hop) | |
784 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
785 | tc_name, result | |
786 | ) | |
787 | ||
788 | result = verify_rib(tgen, addr_type, "r2", input_topo, next_hop, protocol) | |
789 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
790 | tc_name, result | |
791 | ) | |
792 | ||
793 | step("Bring up BGP on R1 and remove Peer-level GR config") | |
794 | ||
795 | start_router_daemons(tgen, "r1", ["bgpd"]) | |
796 | ||
797 | input_dict = { | |
798 | "r1": { | |
799 | "bgp": { | |
800 | "address_family": { | |
801 | "ipv4": { | |
802 | "unicast": { | |
803 | "neighbor": { | |
804 | "r2": { | |
805 | "dest_link": { | |
806 | "r1-link1": {"graceful-restart": False} | |
807 | } | |
808 | } | |
809 | } | |
810 | } | |
811 | }, | |
812 | "ipv6": { | |
813 | "unicast": { | |
814 | "neighbor": { | |
815 | "r2": { | |
816 | "dest_link": { | |
817 | "r1-link1": {"graceful-restart": False} | |
818 | } | |
819 | } | |
820 | } | |
821 | } | |
822 | }, | |
823 | } | |
824 | } | |
825 | } | |
826 | } | |
827 | ||
828 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
829 | ||
830 | step("Verify on R2 that R1 advertises GR capabilities as a helper node") | |
831 | ||
832 | input_dict = { | |
833 | "r1": {"bgp": {"graceful-restart": {"graceful-restart-helper": True}}}, | |
834 | "r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
835 | } | |
836 | ||
837 | for addr_type in ADDR_TYPES: | |
838 | result = verify_graceful_restart( | |
839 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
840 | ) | |
841 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
842 | tc_name, result | |
843 | ) | |
844 | ||
845 | step("Kill BGPd on R2") | |
846 | ||
847 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
848 | ||
849 | step( | |
850 | "Verify that R2 keeps the stale entries in FIB & R1 keeps stale entries in RIB & FIB" | |
851 | ) | |
852 | ||
853 | for addr_type in ADDR_TYPES: | |
854 | protocol = "bgp" | |
855 | next_hop = next_hop_per_address_family( | |
856 | tgen, "r2", "r1", addr_type, NEXT_HOP_IP_1 | |
857 | ) | |
858 | input_topo = {"r1": topo["routers"]["r1"]} | |
859 | result = verify_rib(tgen, addr_type, "r2", input_topo, next_hop, protocol) | |
860 | assert ( | |
861 | result is True | |
862 | ), "Testcase {} : Failed \n Routes are still present \n Error {}".format( | |
863 | tc_name, result | |
864 | ) | |
865 | ||
866 | for addr_type in ADDR_TYPES: | |
867 | next_hop = next_hop_per_address_family( | |
868 | tgen, "r1", "r2", addr_type, NEXT_HOP_IP_2 | |
869 | ) | |
870 | input_topo = {"r2": topo["routers"]["r2"]} | |
871 | result = verify_bgp_rib(tgen, addr_type, "r1", input_topo, next_hop) | |
872 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
873 | tc_name, result | |
874 | ) | |
875 | ||
876 | result = verify_rib(tgen, addr_type, "r1", input_topo, next_hop, protocol) | |
877 | assert ( | |
878 | result is True | |
879 | ), "Testcase {} : Failed \n Routes are still present \n Error {}".format( | |
880 | tc_name, result | |
881 | ) | |
882 | ||
883 | step("Start BGP on R2") | |
884 | ||
885 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
886 | ||
887 | write_test_footer(tc_name) | |
888 | ||
889 | ||
890 | def test_BGP_GR_TC_53_p1(request): | |
891 | """ | |
892 | Test Objective : Default GR functional mode is Helper. | |
893 | Global Mode : None | |
894 | PerPeer Mode : None | |
895 | GR Mode effective : GR Helper | |
896 | ||
897 | """ | |
898 | ||
899 | tgen = get_topogen() | |
900 | tc_name = request.node.name | |
901 | write_test_header(tc_name) | |
902 | ||
903 | # Check router status | |
904 | check_router_status(tgen) | |
905 | ||
906 | # Don't run this test if we have any failure. | |
907 | if tgen.routers_have_failure(): | |
908 | pytest.skip(tgen.errors) | |
909 | ||
910 | # Creating configuration from JSON | |
911 | reset_config_on_routers(tgen) | |
912 | ||
913 | step("configure R2 as global restarting node") | |
914 | ||
915 | input_dict = {"r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}} | |
916 | ||
917 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
918 | ||
919 | step( | |
920 | "Verify on R2 that R1 advertises GR capabilities as a helper node based on inherit" | |
921 | ) | |
922 | ||
923 | input_dict = { | |
924 | "r1": {"bgp": {"graceful-restart": {"graceful-restart-helper": True}}}, | |
925 | "r2": {"bgp": {"graceful-restart": {"graceful-restart": True}}}, | |
926 | } | |
927 | ||
928 | for addr_type in ADDR_TYPES: | |
929 | result = verify_graceful_restart( | |
930 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
931 | ) | |
932 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
933 | tc_name, result | |
934 | ) | |
935 | ||
936 | step("Kill BGPd on R2") | |
937 | ||
938 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
939 | ||
940 | step( | |
941 | "Verify that R2 keeps the stale entries in FIB & R1 keeps stale entries in RIB & FIB" | |
942 | ) | |
943 | ||
944 | for addr_type in ADDR_TYPES: | |
945 | protocol = "bgp" | |
946 | next_hop = next_hop_per_address_family( | |
947 | tgen, "r2", "r1", addr_type, NEXT_HOP_IP_1 | |
948 | ) | |
949 | input_topo = {"r1": topo["routers"]["r1"]} | |
950 | result = verify_rib(tgen, addr_type, "r2", input_topo, next_hop, protocol) | |
951 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
952 | tc_name, result | |
953 | ) | |
954 | ||
955 | for addr_type in ADDR_TYPES: | |
956 | next_hop = next_hop_per_address_family( | |
957 | tgen, "r1", "r2", addr_type, NEXT_HOP_IP_2 | |
958 | ) | |
959 | input_topo = {"r2": topo["routers"]["r2"]} | |
960 | result = verify_bgp_rib(tgen, addr_type, "r1", input_topo, next_hop) | |
961 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
962 | tc_name, result | |
963 | ) | |
964 | ||
965 | result = verify_rib(tgen, addr_type, "r1", input_topo, next_hop, protocol) | |
966 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
967 | tc_name, result | |
968 | ) | |
969 | ||
970 | step("Start BGP on R2") | |
971 | ||
972 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
973 | ||
974 | write_test_footer(tc_name) | |
975 | ||
976 | ||
977 | def test_BGP_GR_UTP_1_3_p0(request): | |
978 | """ | |
979 | Test Objective : Helper BGP router R1, mark and unmark IPV4 routes | |
980 | as stale as the restarting router R2 come up within the restart time | |
981 | ||
982 | Test Objective : Helper BGP router R1, mark IPV4 routes as stale and | |
983 | deletes them as the restarting router R2 did-not come up within | |
984 | restart time. | |
985 | """ | |
986 | ||
987 | tgen = get_topogen() | |
988 | tc_name = request.node.name | |
989 | write_test_header(tc_name) | |
990 | ||
991 | # Don't run this test if we have any failure. | |
992 | if tgen.routers_have_failure(): | |
993 | pytest.skip(tgen.errors) | |
994 | ||
995 | # Create route-map to prefer global next-hop | |
996 | input_dict = { | |
997 | "r1": { | |
998 | "route_maps": { | |
999 | "rmap_global": [ | |
1000 | {"action": "permit", "set": {"ipv6": {"nexthop": "prefer-global"}}} | |
1001 | ] | |
1002 | } | |
1003 | }, | |
1004 | "r2": { | |
1005 | "route_maps": { | |
1006 | "rmap_global": [ | |
1007 | {"action": "permit", "set": {"ipv6": {"nexthop": "prefer-global"}}} | |
1008 | ] | |
1009 | } | |
1010 | }, | |
1011 | } | |
1012 | result = create_route_maps(tgen, input_dict) | |
1013 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
1014 | ||
1015 | # Configure neighbor for route map | |
1016 | input_dict_1 = { | |
1017 | "r1": { | |
1018 | "bgp": { | |
1019 | "address_family": { | |
1020 | "ipv6": { | |
1021 | "unicast": { | |
1022 | "neighbor": { | |
1023 | "r2": { | |
1024 | "dest_link": { | |
1025 | "r1-link1": { | |
1026 | "route_maps": [ | |
1027 | { | |
1028 | "name": "rmap_global", | |
1029 | "direction": "in", | |
1030 | } | |
1031 | ] | |
1032 | } | |
1033 | } | |
1034 | } | |
1035 | } | |
1036 | } | |
1037 | } | |
1038 | } | |
1039 | } | |
1040 | }, | |
1041 | "r2": { | |
1042 | "bgp": { | |
1043 | "address_family": { | |
1044 | "ipv6": { | |
1045 | "unicast": { | |
1046 | "neighbor": { | |
1047 | "r1": { | |
1048 | "dest_link": { | |
1049 | "r2-link1": { | |
1050 | "route_maps": [ | |
1051 | { | |
1052 | "name": "rmap_global", | |
1053 | "direction": "in", | |
1054 | } | |
1055 | ] | |
1056 | } | |
1057 | } | |
1058 | } | |
1059 | } | |
1060 | } | |
1061 | } | |
1062 | } | |
1063 | } | |
1064 | }, | |
1065 | } | |
1066 | ||
1067 | result = create_router_bgp(tgen, topo, input_dict_1) | |
1068 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
1069 | ||
1070 | # Configure graceful-restart | |
1071 | input_dict = { | |
1072 | "r1": { | |
1073 | "bgp": { | |
1074 | "address_family": { | |
1075 | "ipv4": { | |
1076 | "unicast": { | |
1077 | "neighbor": { | |
1078 | "r2": { | |
1079 | "dest_link": { | |
1080 | "r1-link1": {"graceful-restart-helper": True} | |
1081 | } | |
1082 | } | |
1083 | } | |
1084 | } | |
1085 | }, | |
1086 | "ipv6": { | |
1087 | "unicast": { | |
1088 | "neighbor": { | |
1089 | "r2": { | |
1090 | "dest_link": { | |
1091 | "r1-link1": {"graceful-restart-helper": True} | |
1092 | } | |
1093 | } | |
1094 | } | |
1095 | } | |
1096 | }, | |
1097 | } | |
1098 | } | |
1099 | }, | |
1100 | "r2": { | |
1101 | "bgp": { | |
1102 | "graceful-restart": {"timer": {"restart-time": GR_RESTART_TIMER}}, | |
1103 | "address_family": { | |
1104 | "ipv4": { | |
1105 | "unicast": { | |
1106 | "neighbor": { | |
1107 | "r1": { | |
1108 | "dest_link": { | |
1109 | "r2-link1": {"graceful-restart": True} | |
1110 | } | |
1111 | } | |
1112 | } | |
1113 | } | |
1114 | }, | |
1115 | "ipv6": { | |
1116 | "unicast": { | |
1117 | "neighbor": { | |
1118 | "r1": { | |
1119 | "dest_link": { | |
1120 | "r2-link1": {"graceful-restart": True} | |
1121 | } | |
1122 | } | |
1123 | } | |
1124 | } | |
1125 | }, | |
1126 | }, | |
1127 | } | |
1128 | }, | |
1129 | } | |
1130 | ||
1131 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r2", peer="r1") | |
1132 | ||
1133 | for addr_type in ADDR_TYPES: | |
1134 | result = verify_graceful_restart( | |
1135 | tgen, topo, addr_type, input_dict, dut="r2", peer="r1" | |
1136 | ) | |
1137 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1138 | tc_name, result | |
1139 | ) | |
1140 | ||
1141 | # Verifying BGP RIB routes | |
1142 | dut = "r1" | |
1143 | peer = "r2" | |
1144 | next_hop = next_hop_per_address_family( | |
1145 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2, preferred_next_hop="global" | |
1146 | ) | |
1147 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1148 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo) | |
1149 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1150 | tc_name, result | |
1151 | ) | |
1152 | ||
1153 | # Verifying RIB routes | |
1154 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, "bgp") | |
1155 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1156 | tc_name, result | |
1157 | ) | |
1158 | ||
1159 | logger.info("[Phase 2] : R2 goes for reload ") | |
1160 | ||
1161 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
1162 | ||
1163 | logger.info( | |
1164 | "[Phase 3] : R2 is still down, restart time 120 sec." | |
1165 | " So time verify the routes are present in BGP RIB" | |
1166 | " and ZEBRA" | |
1167 | ) | |
1168 | ||
1169 | for addr_type in ADDR_TYPES: | |
1170 | # Verifying BGP RIB routes | |
1171 | next_hop = next_hop_per_address_family( | |
1172 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2, preferred_next_hop="global" | |
1173 | ) | |
1174 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1175 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1176 | tc_name, result | |
1177 | ) | |
1178 | ||
1179 | # Verifying RIB routes | |
1180 | protocol = "bgp" | |
1181 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1182 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1183 | tc_name, result | |
1184 | ) | |
1185 | ||
1186 | logger.info("[Phase 4] : sleep for {} sec".format(GR_RESTART_TIMER)) | |
1187 | sleep(GR_RESTART_TIMER) | |
1188 | ||
1189 | logger.info("[Phase 5] : Verify the routes from r2 ") | |
1190 | ||
1191 | for addr_type in ADDR_TYPES: | |
1192 | # Verifying BGP RIB routes | |
1193 | next_hop = NEXT_HOP_IP_2[addr_type] | |
1194 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1195 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, expected=False) | |
1196 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
1197 | tc_name, result | |
1198 | ) | |
1199 | logger.info(" Expected behavior: {}".format(result)) | |
1200 | ||
1201 | # Verifying RIB routes | |
1202 | result = verify_rib( | |
1203 | tgen, addr_type, dut, input_topo, next_hop, "bgp", expected=False | |
1204 | ) | |
1205 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
1206 | tc_name, result | |
1207 | ) | |
1208 | logger.info(" Expected behavior: {}".format(result)) | |
1209 | ||
1210 | logger.info("[Phase 5] : R2 is about to come up now ") | |
1211 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
1212 | ||
1213 | logger.info("[Phase 5] : R2 is UP Now ! ") | |
1214 | ||
1215 | for addr_type in ADDR_TYPES: | |
1216 | # Verifying GR stats | |
1217 | result = verify_graceful_restart( | |
1218 | tgen, topo, addr_type, input_dict, dut="r2", peer="r1" | |
1219 | ) | |
1220 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1221 | tc_name, result | |
1222 | ) | |
1223 | ||
1224 | result = verify_r_bit(tgen, topo, addr_type, input_dict, dut="r1", peer="r2") | |
1225 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1226 | tc_name, result | |
1227 | ) | |
1228 | ||
1229 | # Verifying BGP RIB routes | |
1230 | next_hop = next_hop_per_address_family( | |
1231 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2, preferred_next_hop="global" | |
1232 | ) | |
1233 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1234 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1235 | tc_name, result | |
1236 | ) | |
1237 | ||
1238 | # Verifying RIB routes | |
1239 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1240 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1241 | tc_name, result | |
1242 | ) | |
1243 | ||
1244 | write_test_footer(tc_name) | |
1245 | ||
1246 | ||
1247 | def test_BGP_GR_UTP_15_TC_9_p1(request): | |
1248 | """ | |
1249 | Test Objective : Restart BGP router R1, detects it is connected to R2, | |
1250 | which is a helper router. Verify the restart capability i.e. R bit | |
1251 | are sent after R1 reloads and comes back. | |
1252 | ||
1253 | Test Objective : Verify that restarting nodes reset "F" bit while sending | |
1254 | the BGP open messages after it's restarts, when BGP GR is **NOT** enabled. | |
1255 | """ | |
1256 | ||
1257 | tgen = get_topogen() | |
1258 | tc_name = request.node.name | |
1259 | write_test_header(tc_name) | |
1260 | ||
1261 | # Checking router status, starting if not running | |
1262 | check_router_status(tgen) | |
1263 | ||
1264 | # Don't run this test if we have any failure. | |
1265 | if tgen.routers_have_failure(): | |
1266 | pytest.skip(tgen.errors) | |
1267 | ||
1268 | # Creating configuration from JSON | |
1269 | # reset_config_on_routers(tgen) | |
1270 | ||
1271 | # Create route-map to prefer global next-hop | |
1272 | input_dict = { | |
1273 | "r1": { | |
1274 | "route_maps": { | |
1275 | "rmap_global": [ | |
1276 | {"action": "permit", "set": {"ipv6": {"nexthop": "prefer-global"}}} | |
1277 | ] | |
1278 | } | |
1279 | }, | |
1280 | "r2": { | |
1281 | "route_maps": { | |
1282 | "rmap_global": [ | |
1283 | {"action": "permit", "set": {"ipv6": {"nexthop": "prefer-global"}}} | |
1284 | ] | |
1285 | } | |
1286 | }, | |
1287 | } | |
1288 | result = create_route_maps(tgen, input_dict) | |
1289 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
1290 | ||
1291 | # Configure neighbor for route map | |
1292 | input_dict_1 = { | |
1293 | "r1": { | |
1294 | "bgp": { | |
1295 | "address_family": { | |
1296 | "ipv6": { | |
1297 | "unicast": { | |
1298 | "neighbor": { | |
1299 | "r2": { | |
1300 | "dest_link": { | |
1301 | "r1-link1": { | |
1302 | "route_maps": [ | |
1303 | { | |
1304 | "name": "rmap_global", | |
1305 | "direction": "in", | |
1306 | } | |
1307 | ] | |
1308 | } | |
1309 | } | |
1310 | } | |
1311 | } | |
1312 | } | |
1313 | } | |
1314 | } | |
1315 | } | |
1316 | }, | |
1317 | "r2": { | |
1318 | "bgp": { | |
1319 | "address_family": { | |
1320 | "ipv6": { | |
1321 | "unicast": { | |
1322 | "neighbor": { | |
1323 | "r1": { | |
1324 | "dest_link": { | |
1325 | "r2-link1": { | |
1326 | "route_maps": [ | |
1327 | { | |
1328 | "name": "rmap_global", | |
1329 | "direction": "in", | |
1330 | } | |
1331 | ] | |
1332 | } | |
1333 | } | |
1334 | } | |
1335 | } | |
1336 | } | |
1337 | } | |
1338 | } | |
1339 | } | |
1340 | }, | |
1341 | } | |
1342 | ||
1343 | result = create_router_bgp(tgen, topo, input_dict_1) | |
1344 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
1345 | ||
1346 | logger.info( | |
1347 | "[Phase 1] : Test Setup " "[Helper Mode]R1-----R2[Restart Mode] initialized " | |
1348 | ) | |
1349 | ||
1350 | # Configure graceful-restart | |
1351 | input_dict = { | |
1352 | "r1": { | |
1353 | "bgp": { | |
1354 | "address_family": { | |
1355 | "ipv4": { | |
1356 | "unicast": { | |
1357 | "neighbor": { | |
1358 | "r2": { | |
1359 | "dest_link": { | |
1360 | "r1-link1": {"graceful-restart": True} | |
1361 | } | |
1362 | } | |
1363 | } | |
1364 | } | |
1365 | }, | |
1366 | "ipv6": { | |
1367 | "unicast": { | |
1368 | "neighbor": { | |
1369 | "r2": { | |
1370 | "dest_link": { | |
1371 | "r1-link1": {"graceful-restart": True} | |
1372 | } | |
1373 | } | |
1374 | } | |
1375 | } | |
1376 | }, | |
1377 | } | |
1378 | } | |
1379 | }, | |
1380 | "r2": { | |
1381 | "bgp": { | |
1382 | "address_family": { | |
1383 | "ipv4": { | |
1384 | "unicast": { | |
1385 | "neighbor": { | |
1386 | "r1": { | |
1387 | "dest_link": { | |
1388 | "r2-link1": {"graceful-restart-helper": True} | |
1389 | } | |
1390 | } | |
1391 | } | |
1392 | } | |
1393 | }, | |
1394 | "ipv6": { | |
1395 | "unicast": { | |
1396 | "neighbor": { | |
1397 | "r1": { | |
1398 | "dest_link": { | |
1399 | "r2-link1": {"graceful-restart-helper": True} | |
1400 | } | |
1401 | } | |
1402 | } | |
1403 | } | |
1404 | }, | |
1405 | } | |
1406 | } | |
1407 | }, | |
1408 | } | |
1409 | ||
1410 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
1411 | ||
1412 | for addr_type in ADDR_TYPES: | |
1413 | result = verify_graceful_restart( | |
1414 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1415 | ) | |
1416 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1417 | tc_name, result | |
1418 | ) | |
1419 | ||
1420 | # Verifying BGP RIB routes | |
1421 | dut = "r1" | |
1422 | peer = "r2" | |
1423 | next_hop = next_hop_per_address_family( | |
1424 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2, preferred_next_hop="global" | |
1425 | ) | |
1426 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1427 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1428 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1429 | tc_name, result | |
1430 | ) | |
1431 | ||
1432 | # Verifying RIB routes | |
1433 | protocol = "bgp" | |
1434 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1435 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1436 | tc_name, result | |
1437 | ) | |
1438 | ||
1439 | logger.info("[Phase 2] : R1 goes for reload ") | |
1440 | ||
1441 | kill_router_daemons(tgen, "r1", ["bgpd"]) | |
1442 | ||
1443 | logger.info("[Phase 6] : R1 is about to come up now ") | |
1444 | start_router_daemons(tgen, "r1", ["bgpd"]) | |
1445 | ||
1446 | for addr_type in ADDR_TYPES: | |
1447 | # Verifying GR stats | |
1448 | result = verify_graceful_restart( | |
1449 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1450 | ) | |
1451 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1452 | tc_name, result | |
1453 | ) | |
1454 | ||
1455 | result = verify_r_bit(tgen, topo, addr_type, input_dict, dut="r2", peer="r1") | |
1456 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1457 | tc_name, result | |
1458 | ) | |
1459 | ||
1460 | # Verifying BGP RIB routes | |
1461 | next_hop = next_hop_per_address_family( | |
1462 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2, preferred_next_hop="global" | |
1463 | ) | |
1464 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1465 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1466 | tc_name, result | |
1467 | ) | |
1468 | ||
1469 | # Verifying RIB routes | |
1470 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1471 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1472 | tc_name, result | |
1473 | ) | |
1474 | ||
1475 | result = verify_r_bit(tgen, topo, addr_type, input_dict, dut="r1", peer="r2") | |
1476 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1477 | tc_name, result | |
1478 | ) | |
1479 | ||
1480 | result = verify_f_bit( | |
1481 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2", expected=False | |
1482 | ) | |
1483 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
1484 | tc_name, result | |
1485 | ) | |
1486 | ||
1487 | write_test_footer(tc_name) | |
1488 | ||
1489 | ||
1490 | def test_BGP_GR_UTP_35_p1(request): | |
1491 | """ | |
1492 | Test Objective : Restart BGP router R1 connected to R2, | |
1493 | which is a restart router. | |
1494 | R1 should not send any GR capability in the open message, | |
1495 | however it would process open message from R2 with GR -restart | |
1496 | capability, but would not perform any BGP GR functionality. | |
1497 | """ | |
1498 | ||
1499 | tgen = get_topogen() | |
1500 | tc_name = request.node.name | |
1501 | write_test_header(tc_name) | |
1502 | ||
1503 | # Check router status | |
1504 | check_router_status(tgen) | |
1505 | ||
1506 | # Don't run this test if we have any failure. | |
1507 | if tgen.routers_have_failure(): | |
1508 | pytest.skip(tgen.errors) | |
1509 | ||
1510 | # Creating configuration from JSON | |
1511 | reset_config_on_routers(tgen) | |
1512 | ||
1513 | logger.info( | |
1514 | "[Phase 1] : Test Setup" " [Disable Mode]R1-----R2[Restart Mode] initialized " | |
1515 | ) | |
1516 | ||
1517 | # Configure graceful-restart | |
1518 | input_dict = { | |
1519 | "r1": { | |
1520 | "bgp": { | |
1521 | "address_family": { | |
1522 | "ipv4": { | |
1523 | "unicast": { | |
1524 | "neighbor": { | |
1525 | "r2": { | |
1526 | "dest_link": { | |
1527 | "r1-link1": {"graceful-restart-disable": True} | |
1528 | } | |
1529 | } | |
1530 | } | |
1531 | } | |
1532 | }, | |
1533 | "ipv6": { | |
1534 | "unicast": { | |
1535 | "neighbor": { | |
1536 | "r2": { | |
1537 | "dest_link": { | |
1538 | "r1-link1": {"graceful-restart-disable": True} | |
1539 | } | |
1540 | } | |
1541 | } | |
1542 | } | |
1543 | }, | |
1544 | } | |
1545 | } | |
1546 | }, | |
1547 | "r2": { | |
1548 | "bgp": { | |
1549 | "address_family": { | |
1550 | "ipv4": { | |
1551 | "unicast": { | |
1552 | "neighbor": { | |
1553 | "r1": { | |
1554 | "dest_link": { | |
1555 | "r2-link1": {"graceful-restart": True} | |
1556 | } | |
1557 | } | |
1558 | } | |
1559 | } | |
1560 | }, | |
1561 | "ipv6": { | |
1562 | "unicast": { | |
1563 | "neighbor": { | |
1564 | "r1": { | |
1565 | "dest_link": { | |
1566 | "r2-link1": {"graceful-restart": True} | |
1567 | } | |
1568 | } | |
1569 | } | |
1570 | } | |
1571 | }, | |
1572 | } | |
1573 | } | |
1574 | }, | |
1575 | } | |
1576 | ||
1577 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
1578 | ||
1579 | for addr_type in ADDR_TYPES: | |
1580 | result = verify_graceful_restart( | |
1581 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1582 | ) | |
1583 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1584 | tc_name, result | |
1585 | ) | |
1586 | ||
1587 | # Verifying BGP RIB routes | |
1588 | dut = "r1" | |
1589 | peer = "r2" | |
1590 | next_hop = next_hop_per_address_family( | |
1591 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
1592 | ) | |
1593 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1594 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1595 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1596 | tc_name, result | |
1597 | ) | |
1598 | ||
1599 | # Verifying RIB routes | |
1600 | protocol = "bgp" | |
1601 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1602 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1603 | tc_name, result | |
1604 | ) | |
1605 | ||
1606 | logger.info("[Phase 2] : R1 goes for reload ") | |
1607 | ||
1608 | kill_router_daemons(tgen, "r1", ["bgpd"]) | |
1609 | ||
1610 | logger.info("[Phase 3] : R1 is about to come up now ") | |
1611 | start_router_daemons(tgen, "r1", ["bgpd"]) | |
1612 | ||
1613 | logger.info("[Phase 4] : R2 is UP now, so time to collect GR stats ") | |
1614 | ||
1615 | for addr_type in ADDR_TYPES: | |
1616 | result = verify_graceful_restart( | |
1617 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1618 | ) | |
1619 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1620 | tc_name, result | |
1621 | ) | |
1622 | ||
1623 | # Verifying BGP RIB routes | |
1624 | next_hop = next_hop_per_address_family( | |
1625 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
1626 | ) | |
1627 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1628 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1629 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1630 | tc_name, result | |
1631 | ) | |
1632 | ||
1633 | # Verifying RIB routes | |
1634 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1635 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1636 | tc_name, result | |
1637 | ) | |
1638 | ||
1639 | write_test_footer(tc_name) | |
1640 | ||
1641 | ||
1642 | def test_BGP_GR_TC_4_p0(request): | |
1643 | """ | |
1644 | Test Objective : Verify that the restarting node sets "R" bit while sending the | |
1645 | BGP open messages after the node restart, only if GR is enabled. | |
1646 | """ | |
1647 | ||
1648 | tgen = get_topogen() | |
1649 | tc_name = request.node.name | |
1650 | write_test_header(tc_name) | |
1651 | ||
1652 | # Check router status | |
1653 | check_router_status(tgen) | |
1654 | ||
1655 | # Don't run this test if we have any failure. | |
1656 | if tgen.routers_have_failure(): | |
1657 | pytest.skip(tgen.errors) | |
1658 | ||
1659 | # Creating configuration from JSON | |
1660 | reset_config_on_routers(tgen) | |
1661 | ||
1662 | logger.info( | |
1663 | "[Phase 1] : Test Setup" " [Restart Mode]R1-----R2[Helper Mode] initialized " | |
1664 | ) | |
1665 | ||
1666 | # Configure graceful-restart | |
1667 | input_dict = { | |
1668 | "r1": { | |
1669 | "bgp": { | |
1670 | "address_family": { | |
1671 | "ipv4": { | |
1672 | "unicast": { | |
1673 | "neighbor": { | |
1674 | "r2": { | |
1675 | "dest_link": { | |
1676 | "r1-link1": {"graceful-restart": True} | |
1677 | } | |
1678 | } | |
1679 | } | |
1680 | } | |
1681 | }, | |
1682 | "ipv6": { | |
1683 | "unicast": { | |
1684 | "neighbor": { | |
1685 | "r2": { | |
1686 | "dest_link": { | |
1687 | "r1-link1": {"graceful-restart": True} | |
1688 | } | |
1689 | } | |
1690 | } | |
1691 | } | |
1692 | }, | |
1693 | } | |
1694 | } | |
1695 | }, | |
1696 | "r2": { | |
1697 | "bgp": { | |
1698 | "address_family": { | |
1699 | "ipv4": { | |
1700 | "unicast": { | |
1701 | "neighbor": { | |
1702 | "r1": { | |
1703 | "dest_link": { | |
1704 | "r2-link1": {"graceful-restart-helper": True} | |
1705 | } | |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | }, | |
1710 | "ipv6": { | |
1711 | "unicast": { | |
1712 | "neighbor": { | |
1713 | "r1": { | |
1714 | "dest_link": { | |
1715 | "r2-link1": {"graceful-restart-helper": True} | |
1716 | } | |
1717 | } | |
1718 | } | |
1719 | } | |
1720 | }, | |
1721 | } | |
1722 | } | |
1723 | }, | |
1724 | } | |
1725 | ||
1726 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
1727 | ||
1728 | for addr_type in ADDR_TYPES: | |
1729 | result = verify_graceful_restart( | |
1730 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1731 | ) | |
1732 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1733 | tc_name, result | |
1734 | ) | |
1735 | ||
1736 | # Verifying BGP RIB routes | |
1737 | dut = "r1" | |
1738 | peer = "r2" | |
1739 | next_hop = next_hop_per_address_family( | |
1740 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
1741 | ) | |
1742 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1743 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1744 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1745 | tc_name, result | |
1746 | ) | |
1747 | ||
1748 | # Verifying RIB routes | |
1749 | protocol = "bgp" | |
1750 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1751 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1752 | tc_name, result | |
1753 | ) | |
1754 | ||
1755 | logger.info("[Phase 2] : R2 goes for reload ") | |
1756 | ||
1757 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
1758 | ||
1759 | logger.info( | |
1760 | "[Phase 3] : R2 is still down, restart time {} sec." | |
1761 | "So time verify the routes are present in BGP RIB and ZEBRA ".format( | |
1762 | GR_RESTART_TIMER | |
1763 | ) | |
1764 | ) | |
1765 | ||
1766 | for addr_type in ADDR_TYPES: | |
1767 | # Verifying BGP RIB routes | |
1768 | next_hop = next_hop_per_address_family( | |
1769 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
1770 | ) | |
1771 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1772 | result = verify_bgp_rib( | |
1773 | tgen, addr_type, dut, input_topo, next_hop, expected=False | |
1774 | ) | |
1775 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
1776 | tc_name, result | |
1777 | ) | |
1778 | logger.info(" Expected behavior: {}".format(result)) | |
1779 | ||
1780 | # Verifying RIB routes | |
1781 | result = verify_rib( | |
1782 | tgen, addr_type, dut, input_topo, next_hop, protocol, expected=False | |
1783 | ) | |
1784 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
1785 | tc_name, result | |
1786 | ) | |
1787 | logger.info(" Expected behavior: {}".format(result)) | |
1788 | ||
1789 | logger.info("[Phase 5] : R2 is about to come up now ") | |
1790 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
1791 | ||
1792 | logger.info("[Phase 4] : R2 is UP now, so time to collect GR stats ") | |
1793 | ||
1794 | for addr_type in ADDR_TYPES: | |
1795 | result = verify_graceful_restart( | |
1796 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1797 | ) | |
1798 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1799 | tc_name, result | |
1800 | ) | |
1801 | ||
1802 | result = verify_r_bit(tgen, topo, addr_type, input_dict, dut="r1", peer="r2") | |
1803 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1804 | tc_name, result | |
1805 | ) | |
1806 | ||
1807 | # Verifying BGP RIB routes | |
1808 | next_hop = next_hop_per_address_family( | |
1809 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
1810 | ) | |
1811 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1812 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1813 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1814 | tc_name, result | |
1815 | ) | |
1816 | ||
1817 | # Verifying RIB routes | |
1818 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1819 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1820 | tc_name, result | |
1821 | ) | |
1822 | ||
1823 | write_test_footer(tc_name) | |
1824 | ||
1825 | ||
1826 | def test_BGP_GR_TC_5_1_2_p1(request): | |
1827 | """ | |
1828 | Test Objective : Verify if restarting node resets R bit in BGP open message | |
1829 | during normal BGP session flaps as well, even when GR restarting mode is enabled. | |
1830 | Here link flap happen due to interface UP/DOWN. | |
1831 | ||
1832 | """ | |
1833 | tgen = get_topogen() | |
1834 | tc_name = request.node.name | |
1835 | write_test_header(tc_name) | |
1836 | ||
1837 | # Check router status | |
1838 | check_router_status(tgen) | |
1839 | ||
1840 | # Don't run this test if we have any failure. | |
1841 | if tgen.routers_have_failure(): | |
1842 | pytest.skip(tgen.errors) | |
1843 | ||
1844 | # Creating configuration from JSON | |
1845 | reset_config_on_routers(tgen) | |
1846 | ||
1847 | logger.info( | |
1848 | "[Phase 1] : Test Setup" " [Restart Mode]R1-----R2[Restart Mode] initialized " | |
1849 | ) | |
1850 | ||
1851 | # Configure graceful-restart | |
1852 | input_dict = { | |
1853 | "r1": { | |
1854 | "bgp": { | |
1855 | "address_family": { | |
1856 | "ipv4": { | |
1857 | "unicast": { | |
1858 | "neighbor": { | |
1859 | "r2": { | |
1860 | "dest_link": { | |
1861 | "r1-link1": {"graceful-restart": True} | |
1862 | } | |
1863 | } | |
1864 | } | |
1865 | } | |
1866 | }, | |
1867 | "ipv6": { | |
1868 | "unicast": { | |
1869 | "neighbor": { | |
1870 | "r2": { | |
1871 | "dest_link": { | |
1872 | "r1-link1": {"graceful-restart": True} | |
1873 | } | |
1874 | } | |
1875 | } | |
1876 | } | |
1877 | }, | |
1878 | } | |
1879 | } | |
1880 | }, | |
1881 | "r2": { | |
1882 | "bgp": { | |
1883 | "address_family": { | |
1884 | "ipv4": { | |
1885 | "unicast": { | |
1886 | "neighbor": { | |
1887 | "r1": { | |
1888 | "dest_link": { | |
1889 | "r2-link1": {"graceful-restart": True} | |
1890 | } | |
1891 | } | |
1892 | } | |
1893 | } | |
1894 | }, | |
1895 | "ipv6": { | |
1896 | "unicast": { | |
1897 | "neighbor": { | |
1898 | "r1": { | |
1899 | "dest_link": { | |
1900 | "r2-link1": {"graceful-restart": True} | |
1901 | } | |
1902 | } | |
1903 | } | |
1904 | } | |
1905 | }, | |
1906 | } | |
1907 | } | |
1908 | }, | |
1909 | } | |
1910 | ||
1911 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
1912 | ||
1913 | for addr_type in ADDR_TYPES: | |
1914 | result = verify_graceful_restart( | |
1915 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1916 | ) | |
1917 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1918 | tc_name, result | |
1919 | ) | |
1920 | ||
1921 | # Verifying BGP RIB routes | |
1922 | dut = "r1" | |
1923 | peer = "r2" | |
1924 | next_hop = next_hop_per_address_family( | |
1925 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
1926 | ) | |
1927 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1928 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1929 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1930 | tc_name, result | |
1931 | ) | |
1932 | ||
1933 | # Verifying RIB routes | |
1934 | protocol = "bgp" | |
1935 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1936 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1937 | tc_name, result | |
1938 | ) | |
1939 | ||
1940 | logger.info("[Phase 2] : Now flap the link running the BGP session ") | |
1941 | # Shutdown interface | |
1942 | intf = "r2-r1-eth0" | |
1943 | shutdown_bringup_interface(tgen, "r2", intf) | |
1944 | ||
1945 | # Bring up Interface | |
1946 | shutdown_bringup_interface(tgen, dut, intf, ifaceaction=True) | |
1947 | ||
1948 | for addr_type in ADDR_TYPES: | |
1949 | result = verify_graceful_restart( | |
1950 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1951 | ) | |
1952 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1953 | tc_name, result | |
1954 | ) | |
1955 | ||
1956 | result = verify_r_bit(tgen, topo, addr_type, input_dict, dut="r1", peer="r2") | |
1957 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1958 | tc_name, result | |
1959 | ) | |
1960 | ||
1961 | logger.info("[Phase 2] : Restart BGPd on router R2. ") | |
1962 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
1963 | ||
1964 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
1965 | ||
1966 | logger.info("[Phase 4] : R2 is UP now, so time to collect GR stats ") | |
1967 | ||
1968 | for addr_type in ADDR_TYPES: | |
1969 | result = verify_graceful_restart( | |
1970 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
1971 | ) | |
1972 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1973 | tc_name, result | |
1974 | ) | |
1975 | ||
1976 | result = verify_r_bit(tgen, topo, addr_type, input_dict, dut="r1", peer="r2") | |
1977 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1978 | tc_name, result | |
1979 | ) | |
1980 | ||
1981 | # Verifying BGP RIB routes | |
1982 | next_hop = next_hop_per_address_family( | |
1983 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
1984 | ) | |
1985 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
1986 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
1987 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1988 | tc_name, result | |
1989 | ) | |
1990 | ||
1991 | # Verifying RIB routes | |
1992 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
1993 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
1994 | tc_name, result | |
1995 | ) | |
1996 | ||
1997 | write_test_footer(tc_name) | |
1998 | ||
1999 | ||
2000 | def test_BGP_GR_TC_6_1_2_p1(request): | |
2001 | """ | |
2002 | Test Objective : Verify if restarting node resets R bit in BGP | |
2003 | open message during normal BGP session flaps when GR is disabled. | |
2004 | """ | |
2005 | ||
2006 | tgen = get_topogen() | |
2007 | tc_name = request.node.name | |
2008 | write_test_header(tc_name) | |
2009 | ||
2010 | # Check router status | |
2011 | check_router_status(tgen) | |
2012 | ||
2013 | # Don't run this test if we have any failure. | |
2014 | if tgen.routers_have_failure(): | |
2015 | pytest.skip(tgen.errors) | |
2016 | ||
2017 | # Creating configuration from JSON | |
2018 | reset_config_on_routers(tgen) | |
2019 | ||
2020 | logger.info( | |
2021 | "[Phase 1] : Test Setup" "[Restart Mode]R1-----R2[Helper Mode] initialized " | |
2022 | ) | |
2023 | ||
2024 | # Configure graceful-restart | |
2025 | input_dict = { | |
2026 | "r1": { | |
2027 | "bgp": { | |
2028 | "address_family": { | |
2029 | "ipv4": { | |
2030 | "unicast": { | |
2031 | "neighbor": { | |
2032 | "r2": { | |
2033 | "dest_link": { | |
2034 | "r1-link1": {"graceful-restart": True} | |
2035 | } | |
2036 | } | |
2037 | } | |
2038 | } | |
2039 | }, | |
2040 | "ipv6": { | |
2041 | "unicast": { | |
2042 | "neighbor": { | |
2043 | "r2": { | |
2044 | "dest_link": { | |
2045 | "r1-link1": {"graceful-restart": True} | |
2046 | } | |
2047 | } | |
2048 | } | |
2049 | } | |
2050 | }, | |
2051 | } | |
2052 | } | |
2053 | }, | |
2054 | "r2": { | |
2055 | "bgp": { | |
2056 | "address_family": { | |
2057 | "ipv4": { | |
2058 | "unicast": { | |
2059 | "neighbor": { | |
2060 | "r1": { | |
2061 | "dest_link": { | |
2062 | "r2-link1": {"graceful-restart-helper": True} | |
2063 | } | |
2064 | } | |
2065 | } | |
2066 | } | |
2067 | }, | |
2068 | "ipv6": { | |
2069 | "unicast": { | |
2070 | "neighbor": { | |
2071 | "r1": { | |
2072 | "dest_link": { | |
2073 | "r2-link1": {"graceful-restart-helper": True} | |
2074 | } | |
2075 | } | |
2076 | } | |
2077 | } | |
2078 | }, | |
2079 | } | |
2080 | } | |
2081 | }, | |
2082 | } | |
2083 | ||
2084 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
2085 | ||
2086 | for addr_type in ADDR_TYPES: | |
2087 | result = verify_graceful_restart( | |
2088 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2089 | ) | |
2090 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2091 | tc_name, result | |
2092 | ) | |
2093 | ||
2094 | # Verifying BGP RIB routes | |
2095 | dut = "r1" | |
2096 | peer = "r2" | |
2097 | next_hop = next_hop_per_address_family( | |
2098 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2099 | ) | |
2100 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2101 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2102 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2103 | tc_name, result | |
2104 | ) | |
2105 | ||
2106 | # Verifying RIB routes | |
2107 | protocol = "bgp" | |
2108 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2109 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2110 | tc_name, result | |
2111 | ) | |
2112 | ||
2113 | logger.info("[Phase 1] : Changing mode" "[Disable Mode]R1-----R2[Helper Mode]") | |
2114 | ||
2115 | # Configure graceful-restart | |
2116 | input_dict = { | |
2117 | "r1": { | |
2118 | "bgp": { | |
2119 | "address_family": { | |
2120 | "ipv4": { | |
2121 | "unicast": { | |
2122 | "neighbor": { | |
2123 | "r2": { | |
2124 | "dest_link": { | |
2125 | "r1-link1": {"graceful-restart-disable": True} | |
2126 | } | |
2127 | } | |
2128 | } | |
2129 | } | |
2130 | }, | |
2131 | "ipv6": { | |
2132 | "unicast": { | |
2133 | "neighbor": { | |
2134 | "r2": { | |
2135 | "dest_link": { | |
2136 | "r1-link1": {"graceful-restart-disable": True} | |
2137 | } | |
2138 | } | |
2139 | } | |
2140 | } | |
2141 | }, | |
2142 | } | |
2143 | } | |
2144 | } | |
2145 | } | |
2146 | ||
2147 | result = create_router_bgp(tgen, topo, input_dict) | |
2148 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
2149 | ||
2150 | for addr_type in ADDR_TYPES: | |
2151 | clear_bgp(tgen, addr_type, "r1") | |
2152 | clear_bgp(tgen, addr_type, "r2") | |
2153 | ||
2154 | # Verify GR stats | |
2155 | input_dict = { | |
2156 | "r2": { | |
2157 | "bgp": { | |
2158 | "address_family": { | |
2159 | "ipv4": { | |
2160 | "unicast": { | |
2161 | "neighbor": { | |
2162 | "r1": { | |
2163 | "dest_link": { | |
2164 | "r2-link1": {"graceful-restart-helper": True} | |
2165 | } | |
2166 | } | |
2167 | } | |
2168 | } | |
2169 | }, | |
2170 | "ipv6": { | |
2171 | "unicast": { | |
2172 | "neighbor": { | |
2173 | "r1": { | |
2174 | "dest_link": { | |
2175 | "r2-link1": {"graceful-restart-helper": True} | |
2176 | } | |
2177 | } | |
2178 | } | |
2179 | } | |
2180 | }, | |
2181 | } | |
2182 | } | |
2183 | }, | |
2184 | "r1": { | |
2185 | "bgp": { | |
2186 | "address_family": { | |
2187 | "ipv4": { | |
2188 | "unicast": { | |
2189 | "neighbor": { | |
2190 | "r2": { | |
2191 | "dest_link": { | |
2192 | "r1-link1": {"graceful-restart-disable": True} | |
2193 | } | |
2194 | } | |
2195 | } | |
2196 | } | |
2197 | }, | |
2198 | "ipv6": { | |
2199 | "unicast": { | |
2200 | "neighbor": { | |
2201 | "r2": { | |
2202 | "dest_link": { | |
2203 | "r1-link1": {"graceful-restart-disable": True} | |
2204 | } | |
2205 | } | |
2206 | } | |
2207 | } | |
2208 | }, | |
2209 | } | |
2210 | } | |
2211 | }, | |
2212 | } | |
2213 | ||
2214 | # here the verify_graceful_restart fro the neighbor would be | |
2215 | # "NotReceived" as the latest GR config is not yet applied. | |
2216 | for addr_type in ADDR_TYPES: | |
2217 | result = verify_graceful_restart( | |
2218 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2219 | ) | |
2220 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2221 | tc_name, result | |
2222 | ) | |
2223 | ||
2224 | logger.info("[Phase 2] : Now flap the link running the BGP session ") | |
2225 | # Shutdown interface | |
2226 | intf = "r2-r1-eth0" | |
2227 | shutdown_bringup_interface(tgen, "r2", intf) | |
2228 | ||
2229 | # Bring up Interface | |
2230 | shutdown_bringup_interface(tgen, dut, intf, ifaceaction=True) | |
2231 | ||
2232 | for addr_type in ADDR_TYPES: | |
2233 | result = verify_graceful_restart( | |
2234 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2235 | ) | |
2236 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2237 | tc_name, result | |
2238 | ) | |
2239 | ||
2240 | result = verify_r_bit( | |
2241 | tgen, topo, addr_type, input_dict, dut="r2", peer="r1", expected=False | |
2242 | ) | |
2243 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
2244 | tc_name, result | |
2245 | ) | |
2246 | ||
2247 | logger.info("Restart BGPd on R2 ") | |
2248 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
2249 | ||
2250 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
2251 | ||
2252 | for addr_type in ADDR_TYPES: | |
2253 | result = verify_graceful_restart( | |
2254 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2255 | ) | |
2256 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2257 | tc_name, result | |
2258 | ) | |
2259 | ||
2260 | result = verify_r_bit( | |
2261 | tgen, topo, addr_type, input_dict, dut="r2", peer="r1", expected=False | |
2262 | ) | |
2263 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
2264 | tc_name, result | |
2265 | ) | |
2266 | ||
2267 | write_test_footer(tc_name) | |
2268 | ||
2269 | ||
2270 | def test_BGP_GR_TC_8_p1(request): | |
2271 | """ | |
2272 | Test Objective : Verify that restarting nodes set "F" bit while sending | |
2273 | the BGP open messages after it restarts, only when BGP GR is enabled. | |
2274 | """ | |
2275 | ||
2276 | tgen = get_topogen() | |
2277 | tc_name = request.node.name | |
2278 | write_test_header(tc_name) | |
2279 | ||
2280 | # Check router status | |
2281 | check_router_status(tgen) | |
2282 | ||
2283 | # Don't run this test if we have any failure. | |
2284 | if tgen.routers_have_failure(): | |
2285 | pytest.skip(tgen.errors) | |
2286 | ||
2287 | # Creating configuration from JSON | |
2288 | reset_config_on_routers(tgen) | |
2289 | ||
2290 | logger.info( | |
2291 | "[Phase 1] : Test Setup" " [Restart Mode]R1-----R2[Restart Mode] initialized " | |
2292 | ) | |
2293 | ||
2294 | # Configure graceful-restart | |
2295 | input_dict = { | |
2296 | "r1": { | |
2297 | "bgp": { | |
2298 | "graceful-restart": {"preserve-fw-state": True}, | |
2299 | "address_family": { | |
2300 | "ipv4": { | |
2301 | "unicast": { | |
2302 | "neighbor": { | |
2303 | "r2": { | |
2304 | "dest_link": { | |
2305 | "r1-link1": {"graceful-restart": True} | |
2306 | } | |
2307 | } | |
2308 | } | |
2309 | } | |
2310 | }, | |
2311 | "ipv6": { | |
2312 | "unicast": { | |
2313 | "neighbor": { | |
2314 | "r2": { | |
2315 | "dest_link": { | |
2316 | "r1-link1": {"graceful-restart": True} | |
2317 | } | |
2318 | } | |
2319 | } | |
2320 | } | |
2321 | }, | |
2322 | }, | |
2323 | } | |
2324 | }, | |
2325 | "r2": { | |
2326 | "bgp": { | |
2327 | "address_family": { | |
2328 | "ipv4": { | |
2329 | "unicast": { | |
2330 | "neighbor": { | |
2331 | "r1": { | |
2332 | "dest_link": { | |
2333 | "r2-link1": {"graceful-restart": True} | |
2334 | } | |
2335 | } | |
2336 | } | |
2337 | } | |
2338 | }, | |
2339 | "ipv6": { | |
2340 | "unicast": { | |
2341 | "neighbor": { | |
2342 | "r1": { | |
2343 | "dest_link": { | |
2344 | "r2-link1": {"graceful-restart": True} | |
2345 | } | |
2346 | } | |
2347 | } | |
2348 | } | |
2349 | }, | |
2350 | } | |
2351 | } | |
2352 | }, | |
2353 | } | |
2354 | ||
2355 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
2356 | ||
2357 | for addr_type in ADDR_TYPES: | |
2358 | result = verify_graceful_restart( | |
2359 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2360 | ) | |
2361 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2362 | tc_name, result | |
2363 | ) | |
2364 | ||
2365 | # Verifying BGP RIB routes | |
2366 | dut = "r1" | |
2367 | peer = "r2" | |
2368 | next_hop = next_hop_per_address_family( | |
2369 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2370 | ) | |
2371 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2372 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2373 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2374 | tc_name, result | |
2375 | ) | |
2376 | ||
2377 | # Verifying RIB routes | |
2378 | protocol = "bgp" | |
2379 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2380 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2381 | tc_name, result | |
2382 | ) | |
2383 | ||
2384 | logger.info("[Phase 2] : R1 goes for reload ") | |
2385 | ||
2386 | kill_router_daemons(tgen, "r1", ["bgpd"]) | |
2387 | ||
2388 | logger.info("[Phase 3] : R1 is about to come up now ") | |
2389 | start_router_daemons(tgen, "r1", ["bgpd"]) | |
2390 | ||
2391 | logger.info("[Phase 4] : R2 is UP now, so time to collect GR stats ") | |
2392 | ||
2393 | for addr_type in ADDR_TYPES: | |
2394 | result = verify_graceful_restart( | |
2395 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2396 | ) | |
2397 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2398 | tc_name, result | |
2399 | ) | |
2400 | ||
2401 | result = verify_r_bit(tgen, topo, addr_type, input_dict, dut="r2", peer="r1") | |
2402 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2403 | tc_name, result | |
2404 | ) | |
2405 | ||
2406 | result = verify_f_bit(tgen, topo, addr_type, input_dict, dut="r2", peer="r1") | |
2407 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2408 | tc_name, result | |
2409 | ) | |
2410 | ||
2411 | write_test_footer(tc_name) | |
2412 | ||
2413 | ||
2414 | def test_BGP_GR_TC_17_p1(request): | |
2415 | """ | |
2416 | Test Objective : Verify that only GR helper routers keep the stale | |
2417 | route entries, not any GR disabled router. | |
2418 | """ | |
2419 | ||
2420 | tgen = get_topogen() | |
2421 | tc_name = request.node.name | |
2422 | write_test_header(tc_name) | |
2423 | ||
2424 | # Check router status | |
2425 | check_router_status(tgen) | |
2426 | ||
2427 | # Don't run this test if we have any failure. | |
2428 | if tgen.routers_have_failure(): | |
2429 | pytest.skip(tgen.errors) | |
2430 | ||
2431 | # Creating configuration from JSON | |
2432 | reset_config_on_routers(tgen) | |
2433 | ||
2434 | logger.info("[Phase 1] : Test Setup [Disable]R1-----R2[Restart] initialized ") | |
2435 | ||
2436 | # Configure graceful-restart | |
2437 | input_dict = { | |
2438 | "r1": { | |
2439 | "bgp": { | |
2440 | "graceful-restart": { | |
2441 | "graceful-restart": True, | |
2442 | "preserve-fw-state": True, | |
2443 | }, | |
2444 | "address_family": { | |
2445 | "ipv4": { | |
2446 | "unicast": { | |
2447 | "neighbor": { | |
2448 | "r2": { | |
2449 | "dest_link": { | |
2450 | "r1-link1": {"graceful-restart-disable": True} | |
2451 | } | |
2452 | } | |
2453 | } | |
2454 | } | |
2455 | }, | |
2456 | "ipv6": { | |
2457 | "unicast": { | |
2458 | "neighbor": { | |
2459 | "r2": { | |
2460 | "dest_link": { | |
2461 | "r1-link1": {"graceful-restart-disable": True} | |
2462 | } | |
2463 | } | |
2464 | } | |
2465 | } | |
2466 | }, | |
2467 | }, | |
2468 | } | |
2469 | }, | |
2470 | "r2": { | |
2471 | "bgp": { | |
2472 | "address_family": { | |
2473 | "ipv4": { | |
2474 | "unicast": { | |
2475 | "neighbor": { | |
2476 | "r1": { | |
2477 | "dest_link": { | |
2478 | "r2-link1": {"graceful-restart": True} | |
2479 | } | |
2480 | } | |
2481 | } | |
2482 | } | |
2483 | }, | |
2484 | "ipv6": { | |
2485 | "unicast": { | |
2486 | "neighbor": { | |
2487 | "r1": { | |
2488 | "dest_link": { | |
2489 | "r2-link1": {"graceful-restart": True} | |
2490 | } | |
2491 | } | |
2492 | } | |
2493 | } | |
2494 | }, | |
2495 | } | |
2496 | } | |
2497 | }, | |
2498 | } | |
2499 | ||
2500 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
2501 | ||
2502 | for addr_type in ADDR_TYPES: | |
2503 | result = verify_graceful_restart( | |
2504 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2505 | ) | |
2506 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2507 | tc_name, result | |
2508 | ) | |
2509 | ||
2510 | # Verifying BGP RIB routes | |
2511 | dut = "r1" | |
2512 | peer = "r2" | |
2513 | next_hop = next_hop_per_address_family( | |
2514 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2515 | ) | |
2516 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2517 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2518 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2519 | tc_name, result | |
2520 | ) | |
2521 | ||
2522 | # Verifying RIB routes | |
2523 | protocol = "bgp" | |
2524 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2525 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2526 | tc_name, result | |
2527 | ) | |
2528 | ||
2529 | logger.info("[Phase 2] : R2 goes for reload ") | |
2530 | ||
2531 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
2532 | ||
2533 | logger.info( | |
2534 | "[Phase 3] : R2 is still down, restart time 120 sec." | |
2535 | " So time verify the routes are present in BGP RIB and ZEBRA " | |
2536 | ) | |
2537 | ||
2538 | for addr_type in ADDR_TYPES: | |
2539 | # Verifying BGP RIB routes | |
2540 | next_hop = next_hop_per_address_family( | |
2541 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2542 | ) | |
2543 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2544 | result = verify_bgp_rib( | |
2545 | tgen, addr_type, dut, input_topo, next_hop, expected=False | |
2546 | ) | |
2547 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
2548 | tc_name, result | |
2549 | ) | |
2550 | logger.info(" Expected behavior: {}".format(result)) | |
2551 | ||
2552 | # Verifying RIB routes | |
2553 | result = verify_rib( | |
2554 | tgen, addr_type, dut, input_topo, next_hop, protocol, expected=False | |
2555 | ) | |
2556 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
2557 | tc_name, result | |
2558 | ) | |
2559 | logger.info(" Expected behavior: {}".format(result)) | |
2560 | ||
2561 | logger.info("[Phase 5] : R2 is about to come up now ") | |
2562 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
2563 | ||
2564 | logger.info("[Phase 4] : R2 is UP now, so time to collect GR stats ") | |
2565 | ||
2566 | for addr_type in ADDR_TYPES: | |
2567 | result = verify_graceful_restart( | |
2568 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2569 | ) | |
2570 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2571 | tc_name, result | |
2572 | ) | |
2573 | ||
2574 | result = verify_r_bit( | |
2575 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2", expected=False | |
2576 | ) | |
2577 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
2578 | tc_name, result | |
2579 | ) | |
2580 | ||
2581 | # Verifying BGP RIB routes | |
2582 | next_hop = next_hop_per_address_family( | |
2583 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2584 | ) | |
2585 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2586 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2587 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2588 | tc_name, result | |
2589 | ) | |
2590 | ||
2591 | # Verifying RIB routes | |
2592 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2593 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2594 | tc_name, result | |
2595 | ) | |
2596 | ||
2597 | write_test_footer(tc_name) | |
2598 | ||
2599 | ||
2600 | def test_BGP_GR_TC_19_p1(request): | |
2601 | """ | |
2602 | Test Objective : Verify that GR helper routers keeps all the routes received | |
2603 | from restarting node if both the routers are configured as GR restarting node. | |
2604 | """ | |
2605 | ||
2606 | tgen = get_topogen() | |
2607 | tc_name = request.node.name | |
2608 | write_test_header(tc_name) | |
2609 | ||
2610 | # Check router status | |
2611 | check_router_status(tgen) | |
2612 | ||
2613 | # Don't run this test if we have any failure. | |
2614 | if tgen.routers_have_failure(): | |
2615 | pytest.skip(tgen.errors) | |
2616 | ||
2617 | # Creating configuration from JSON | |
2618 | reset_config_on_routers(tgen) | |
2619 | ||
2620 | logger.info("[Phase 1] : Test Setup [Helper]R1-----R2[Restart] initialized ") | |
2621 | ||
2622 | # Configure graceful-restart | |
2623 | input_dict = { | |
2624 | "r1": { | |
2625 | "bgp": { | |
2626 | "graceful-restart": { | |
2627 | "graceful-restart": True, | |
2628 | "preserve-fw-state": True, | |
2629 | }, | |
2630 | "address_family": { | |
2631 | "ipv4": { | |
2632 | "unicast": { | |
2633 | "neighbor": { | |
2634 | "r2": { | |
2635 | "dest_link": { | |
2636 | "r1-link1": {"graceful-restart-helper": True} | |
2637 | } | |
2638 | } | |
2639 | } | |
2640 | } | |
2641 | }, | |
2642 | "ipv6": { | |
2643 | "unicast": { | |
2644 | "neighbor": { | |
2645 | "r2": { | |
2646 | "dest_link": { | |
2647 | "r1-link1": {"graceful-restart-helper": True} | |
2648 | } | |
2649 | } | |
2650 | } | |
2651 | } | |
2652 | }, | |
2653 | }, | |
2654 | } | |
2655 | }, | |
2656 | "r2": { | |
2657 | "bgp": { | |
2658 | "address_family": { | |
2659 | "ipv4": { | |
2660 | "unicast": { | |
2661 | "neighbor": { | |
2662 | "r1": { | |
2663 | "dest_link": { | |
2664 | "r2-link1": {"graceful-restart": True} | |
2665 | } | |
2666 | } | |
2667 | } | |
2668 | } | |
2669 | }, | |
2670 | "ipv6": { | |
2671 | "unicast": { | |
2672 | "neighbor": { | |
2673 | "r1": { | |
2674 | "dest_link": { | |
2675 | "r2-link1": {"graceful-restart": True} | |
2676 | } | |
2677 | } | |
2678 | } | |
2679 | } | |
2680 | }, | |
2681 | } | |
2682 | } | |
2683 | }, | |
2684 | } | |
2685 | ||
2686 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
2687 | ||
2688 | for addr_type in ADDR_TYPES: | |
2689 | result = verify_graceful_restart( | |
2690 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2691 | ) | |
2692 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2693 | tc_name, result | |
2694 | ) | |
2695 | ||
2696 | # Verifying BGP RIB routes | |
2697 | dut = "r1" | |
2698 | peer = "r2" | |
2699 | next_hop = next_hop_per_address_family( | |
2700 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2701 | ) | |
2702 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2703 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2704 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2705 | tc_name, result | |
2706 | ) | |
2707 | ||
2708 | # Verifying RIB routes | |
2709 | protocol = "bgp" | |
2710 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2711 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2712 | tc_name, result | |
2713 | ) | |
2714 | ||
2715 | logger.info( | |
2716 | "[Phase 2] : R1's Gr state cahnge to Graceful" | |
2717 | " Restart without resetting the session " | |
2718 | ) | |
2719 | ||
2720 | # Configure graceful-restart | |
2721 | input_dict = { | |
2722 | "r1": { | |
2723 | "bgp": { | |
2724 | "address_family": { | |
2725 | "ipv4": { | |
2726 | "unicast": { | |
2727 | "neighbor": { | |
2728 | "r2": { | |
2729 | "dest_link": { | |
2730 | "r1-link1": {"graceful-restart": True} | |
2731 | } | |
2732 | } | |
2733 | } | |
2734 | } | |
2735 | }, | |
2736 | "ipv6": { | |
2737 | "unicast": { | |
2738 | "neighbor": { | |
2739 | "r2": { | |
2740 | "dest_link": { | |
2741 | "r1-link1": {"graceful-restart": True} | |
2742 | } | |
2743 | } | |
2744 | } | |
2745 | } | |
2746 | }, | |
2747 | } | |
2748 | } | |
2749 | } | |
2750 | } | |
2751 | ||
2752 | result = create_router_bgp(tgen, topo, input_dict) | |
2753 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
2754 | ||
2755 | logger.info( | |
2756 | "[Phase 3] : R2 is still down, restart time 120 sec." | |
2757 | " So time verify the routes are present in BGP RIB and ZEBRA " | |
2758 | ) | |
2759 | ||
2760 | for addr_type in ADDR_TYPES: | |
2761 | # Verifying BGP RIB routes | |
2762 | next_hop = next_hop_per_address_family( | |
2763 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2764 | ) | |
2765 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2766 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2767 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2768 | tc_name, result | |
2769 | ) | |
2770 | ||
2771 | # Verifying RIB routes | |
2772 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2773 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2774 | tc_name, result | |
2775 | ) | |
2776 | ||
2777 | write_test_footer(tc_name) | |
2778 | ||
2779 | ||
2780 | def test_BGP_GR_TC_20_p1(request): | |
2781 | """ | |
2782 | Test Objective : Verify that GR helper routers delete all the routes | |
2783 | received from a node if both the routers are configured as GR helper node. | |
2784 | """ | |
2785 | tgen = get_topogen() | |
2786 | tc_name = request.node.name | |
2787 | write_test_header(tc_name) | |
2788 | ||
2789 | # Check router status | |
2790 | check_router_status(tgen) | |
2791 | ||
2792 | # Don't run this test if we have any failure. | |
2793 | if tgen.routers_have_failure(): | |
2794 | pytest.skip(tgen.errors) | |
2795 | ||
2796 | # Creating configuration from JSON | |
2797 | reset_config_on_routers(tgen) | |
2798 | ||
2799 | logger.info("[Phase 1] : Test Setup [Helper]R1-----R2[Helper] initialized ") | |
2800 | ||
2801 | # Configure graceful-restart | |
2802 | input_dict = { | |
2803 | "r1": { | |
2804 | "bgp": { | |
2805 | "graceful-restart": { | |
2806 | "graceful-restart": True, | |
2807 | "preserve-fw-state": True, | |
2808 | }, | |
2809 | "address_family": { | |
2810 | "ipv4": { | |
2811 | "unicast": { | |
2812 | "neighbor": { | |
2813 | "r2": { | |
2814 | "dest_link": { | |
2815 | "r1-link1": {"graceful-restart-helper": True} | |
2816 | } | |
2817 | } | |
2818 | } | |
2819 | } | |
2820 | }, | |
2821 | "ipv6": { | |
2822 | "unicast": { | |
2823 | "neighbor": { | |
2824 | "r2": { | |
2825 | "dest_link": { | |
2826 | "r1-link1": {"graceful-restart-helper": True} | |
2827 | } | |
2828 | } | |
2829 | } | |
2830 | } | |
2831 | }, | |
2832 | }, | |
2833 | } | |
2834 | }, | |
2835 | "r2": { | |
2836 | "bgp": { | |
2837 | "address_family": { | |
2838 | "ipv4": { | |
2839 | "unicast": { | |
2840 | "neighbor": { | |
2841 | "r1": { | |
2842 | "dest_link": { | |
2843 | "r2-link1": {"graceful-restart-helper": True} | |
2844 | } | |
2845 | } | |
2846 | } | |
2847 | } | |
2848 | }, | |
2849 | "ipv6": { | |
2850 | "unicast": { | |
2851 | "neighbor": { | |
2852 | "r1": { | |
2853 | "dest_link": { | |
2854 | "r2-link1": {"graceful-restart-helper": True} | |
2855 | } | |
2856 | } | |
2857 | } | |
2858 | } | |
2859 | }, | |
2860 | } | |
2861 | } | |
2862 | }, | |
2863 | } | |
2864 | ||
2865 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
2866 | ||
2867 | for addr_type in ADDR_TYPES: | |
2868 | result = verify_graceful_restart( | |
2869 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
2870 | ) | |
2871 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2872 | tc_name, result | |
2873 | ) | |
2874 | ||
2875 | # Verifying BGP RIB routes | |
2876 | dut = "r1" | |
2877 | peer = "r2" | |
2878 | next_hop = next_hop_per_address_family( | |
2879 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2880 | ) | |
2881 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2882 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2883 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2884 | tc_name, result | |
2885 | ) | |
2886 | ||
2887 | # Verifying RIB routes | |
2888 | protocol = "bgp" | |
2889 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2890 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2891 | tc_name, result | |
2892 | ) | |
2893 | ||
2894 | kill_router_daemons(tgen, "r2", ["bgpd"]) | |
2895 | ||
2896 | for addr_type in ADDR_TYPES: | |
2897 | # Verifying BGP RIB routes | |
2898 | next_hop = next_hop_per_address_family( | |
2899 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2900 | ) | |
2901 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2902 | result = verify_bgp_rib( | |
2903 | tgen, addr_type, dut, input_topo, next_hop, expected=False | |
2904 | ) | |
2905 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
2906 | tc_name, result | |
2907 | ) | |
2908 | logger.info(" Expected behavior: {}".format(result)) | |
2909 | ||
2910 | # Verifying RIB routes | |
2911 | result = verify_rib( | |
2912 | tgen, addr_type, dut, input_topo, next_hop, protocol, expected=False | |
2913 | ) | |
2914 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
2915 | tc_name, result | |
2916 | ) | |
2917 | logger.info(" Expected behavior: {}".format(result)) | |
2918 | ||
2919 | logger.info("[Phase 5] : R2 is about to come up now ") | |
2920 | ||
2921 | start_router_daemons(tgen, "r2", ["bgpd"]) | |
2922 | ||
2923 | logger.info("[Phase 4] : R2 is UP now, so time to collect GR stats ") | |
2924 | ||
2925 | for addr_type in ADDR_TYPES: | |
2926 | # Verifying BGP RIB routes | |
2927 | next_hop = next_hop_per_address_family( | |
2928 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
2929 | ) | |
2930 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
2931 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
2932 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2933 | tc_name, result | |
2934 | ) | |
2935 | ||
2936 | # Verifying RIB routes | |
2937 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
2938 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
2939 | tc_name, result | |
2940 | ) | |
2941 | ||
2942 | write_test_footer(tc_name) | |
2943 | ||
2944 | ||
2945 | def test_BGP_GR_TC_31_1_p1(request): | |
2946 | """ | |
2947 | After BGP neighborship is established and GR capability is exchanged, | |
2948 | transition restarting router to disabled state and vice versa. | |
2949 | """ | |
2950 | ||
2951 | tgen = get_topogen() | |
2952 | tc_name = request.node.name | |
2953 | write_test_header(tc_name) | |
2954 | ||
2955 | # Check router status | |
2956 | check_router_status(tgen) | |
2957 | ||
2958 | # Don't run this test if we have any failure. | |
2959 | if tgen.routers_have_failure(): | |
2960 | pytest.skip(tgen.errors) | |
2961 | ||
2962 | # Creating configuration from JSON | |
2963 | reset_config_on_routers(tgen) | |
2964 | ||
2965 | logger.info( | |
2966 | "[Phase 1] : Test Setup" " [Helper Mode]R2-----R1[Restart Mode] initialized " | |
2967 | ) | |
2968 | ||
2969 | # Configure graceful-restart | |
2970 | input_dict = { | |
2971 | "r2": { | |
2972 | "bgp": { | |
2973 | "address_family": { | |
2974 | "ipv4": { | |
2975 | "unicast": { | |
2976 | "neighbor": { | |
2977 | "r1": { | |
2978 | "dest_link": { | |
2979 | "r2-link1": {"graceful-restart-helper": True} | |
2980 | } | |
2981 | } | |
2982 | } | |
2983 | } | |
2984 | }, | |
2985 | "ipv6": { | |
2986 | "unicast": { | |
2987 | "neighbor": { | |
2988 | "r1": { | |
2989 | "dest_link": { | |
2990 | "r2-link1": {"graceful-restart-helper": True} | |
2991 | } | |
2992 | } | |
2993 | } | |
2994 | } | |
2995 | }, | |
2996 | } | |
2997 | } | |
2998 | }, | |
2999 | "r1": { | |
3000 | "bgp": { | |
3001 | "graceful-restart": {"preserve-fw-state": True}, | |
3002 | "address_family": { | |
3003 | "ipv4": { | |
3004 | "unicast": { | |
3005 | "neighbor": { | |
3006 | "r2": { | |
3007 | "dest_link": { | |
3008 | "r1-link1": {"graceful-restart": True} | |
3009 | } | |
3010 | } | |
3011 | } | |
3012 | } | |
3013 | }, | |
3014 | "ipv6": { | |
3015 | "unicast": { | |
3016 | "neighbor": { | |
3017 | "r2": { | |
3018 | "dest_link": { | |
3019 | "r1-link1": {"graceful-restart": True} | |
3020 | } | |
3021 | } | |
3022 | } | |
3023 | } | |
3024 | }, | |
3025 | }, | |
3026 | } | |
3027 | }, | |
3028 | } | |
3029 | ||
3030 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
3031 | ||
3032 | for addr_type in ADDR_TYPES: | |
3033 | result = verify_graceful_restart( | |
3034 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
3035 | ) | |
3036 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3037 | tc_name, result | |
3038 | ) | |
3039 | ||
3040 | # Verifying BGP RIB routes | |
3041 | dut = "r1" | |
3042 | peer = "r2" | |
3043 | protocol = "bgp" | |
3044 | next_hop = next_hop_per_address_family( | |
3045 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
3046 | ) | |
3047 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
3048 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
3049 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3050 | tc_name, result | |
3051 | ) | |
3052 | ||
3053 | # Verifying RIB routes | |
3054 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
3055 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3056 | tc_name, result | |
3057 | ) | |
3058 | ||
3059 | logger.info("[Phase 2] : R1 Goes from Restart to Disable Mode ") | |
3060 | ||
3061 | # Configure graceful-restart | |
3062 | input_dict = { | |
3063 | "r1": { | |
3064 | "bgp": { | |
3065 | "address_family": { | |
3066 | "ipv4": { | |
3067 | "unicast": { | |
3068 | "neighbor": { | |
3069 | "r2": { | |
3070 | "dest_link": { | |
3071 | "r1-link1": {"graceful-restart-disable": True} | |
3072 | } | |
3073 | } | |
3074 | } | |
3075 | } | |
3076 | }, | |
3077 | "ipv6": { | |
3078 | "unicast": { | |
3079 | "neighbor": { | |
3080 | "r2": { | |
3081 | "dest_link": { | |
3082 | "r1-link1": {"graceful-restart-disable": True} | |
3083 | } | |
3084 | } | |
3085 | } | |
3086 | } | |
3087 | }, | |
3088 | } | |
3089 | } | |
3090 | } | |
3091 | } | |
3092 | ||
3093 | result = create_router_bgp(tgen, topo, input_dict) | |
3094 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
3095 | ||
3096 | for addr_type in ADDR_TYPES: | |
3097 | clear_bgp(tgen, addr_type, "r1") | |
3098 | clear_bgp(tgen, addr_type, "r2") | |
3099 | ||
3100 | # Verify GR stats | |
3101 | input_dict = { | |
3102 | "r1": { | |
3103 | "bgp": { | |
3104 | "address_family": { | |
3105 | "ipv4": { | |
3106 | "unicast": { | |
3107 | "neighbor": { | |
3108 | "r2": { | |
3109 | "dest_link": { | |
3110 | "r1-link1": {"graceful-restart-disable": True} | |
3111 | } | |
3112 | } | |
3113 | } | |
3114 | } | |
3115 | }, | |
3116 | "ipv6": { | |
3117 | "unicast": { | |
3118 | "neighbor": { | |
3119 | "r2": { | |
3120 | "dest_link": { | |
3121 | "r1-link1": {"graceful-restart-disable": True} | |
3122 | } | |
3123 | } | |
3124 | } | |
3125 | } | |
3126 | }, | |
3127 | } | |
3128 | } | |
3129 | }, | |
3130 | "r2": { | |
3131 | "bgp": { | |
3132 | "address_family": { | |
3133 | "ipv4": { | |
3134 | "unicast": { | |
3135 | "neighbor": { | |
3136 | "r1": { | |
3137 | "dest_link": { | |
3138 | "r2-link1": {"graceful-restart-helper": True} | |
3139 | } | |
3140 | } | |
3141 | } | |
3142 | } | |
3143 | }, | |
3144 | "ipv6": { | |
3145 | "unicast": { | |
3146 | "neighbor": { | |
3147 | "r1": { | |
3148 | "dest_link": { | |
3149 | "r2-link1": {"graceful-restart-helper": True} | |
3150 | } | |
3151 | } | |
3152 | } | |
3153 | } | |
3154 | }, | |
3155 | } | |
3156 | } | |
3157 | }, | |
3158 | } | |
3159 | ||
3160 | for addr_type in ADDR_TYPES: | |
3161 | result = verify_graceful_restart( | |
3162 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
3163 | ) | |
3164 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3165 | tc_name, result | |
3166 | ) | |
3167 | ||
3168 | logger.info("[Phase 2] : R1 goes for reload ") | |
3169 | ||
3170 | kill_router_daemons(tgen, "r1", ["bgpd"]) | |
3171 | ||
3172 | logger.info( | |
3173 | "[Phase 3] : R1 is still down, restart time 120 sec." | |
3174 | " So time verify the routes are not present in BGP RIB and ZEBRA" | |
3175 | ) | |
3176 | ||
3177 | for addr_type in ADDR_TYPES: | |
3178 | # Verifying RIB routes | |
3179 | next_hop = next_hop_per_address_family( | |
3180 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
3181 | ) | |
3182 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
3183 | result = verify_rib( | |
3184 | tgen, addr_type, dut, input_topo, next_hop, protocol, expected=False | |
3185 | ) | |
3186 | assert result is not True, "Testcase {} : Failed \n Error {}".format( | |
3187 | tc_name, result | |
3188 | ) | |
3189 | ||
3190 | logger.info("[Phase 4] : R1 is about to come up now ") | |
3191 | start_router_daemons(tgen, "r1", ["bgpd"]) | |
3192 | ||
3193 | logger.info("[Phase 5] : R1 is UP now, so time to collect GR stats ") | |
3194 | ||
3195 | for addr_type in ADDR_TYPES: | |
3196 | result = verify_graceful_restart( | |
3197 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
3198 | ) | |
3199 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3200 | tc_name, result | |
3201 | ) | |
3202 | ||
3203 | # Verifying BGP RIB routes | |
3204 | next_hop = next_hop_per_address_family( | |
3205 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
3206 | ) | |
3207 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
3208 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
3209 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3210 | tc_name, result | |
3211 | ) | |
3212 | ||
3213 | # Verifying RIB routes | |
3214 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
3215 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3216 | tc_name, result | |
3217 | ) | |
3218 | ||
3219 | write_test_footer(tc_name) | |
3220 | ||
3221 | ||
3222 | def test_BGP_GR_TC_31_2_p1(request): | |
3223 | """ | |
3224 | After BGP neighborship is established and GR capability is exchanged, | |
3225 | transition restarting router to disabled state and vice versa. | |
3226 | """ | |
3227 | ||
3228 | tgen = get_topogen() | |
3229 | tc_name = request.node.name | |
3230 | write_test_header(tc_name) | |
3231 | ||
3232 | # Check router status | |
3233 | check_router_status(tgen) | |
3234 | ||
3235 | # Don't run this test if we have any failure. | |
3236 | if tgen.routers_have_failure(): | |
3237 | pytest.skip(tgen.errors) | |
3238 | ||
3239 | # Creating configuration from JSON | |
3240 | reset_config_on_routers(tgen) | |
3241 | ||
3242 | logger.info( | |
3243 | "[Phase 1] : Test Setup " "[Disable Mode]R1-----R2[Restart Mode] initialized " | |
3244 | ) | |
3245 | ||
3246 | # Configure graceful-restart | |
3247 | input_dict = { | |
3248 | "r2": { | |
3249 | "bgp": { | |
3250 | "address_family": { | |
3251 | "ipv4": { | |
3252 | "unicast": { | |
3253 | "neighbor": { | |
3254 | "r1": { | |
3255 | "dest_link": { | |
3256 | "r2-link1": {"graceful-restart-helper": True} | |
3257 | } | |
3258 | } | |
3259 | } | |
3260 | } | |
3261 | }, | |
3262 | "ipv6": { | |
3263 | "unicast": { | |
3264 | "neighbor": { | |
3265 | "r1": { | |
3266 | "dest_link": { | |
3267 | "r2-link1": {"graceful-restart-helper": True} | |
3268 | } | |
3269 | } | |
3270 | } | |
3271 | } | |
3272 | }, | |
3273 | } | |
3274 | } | |
3275 | }, | |
3276 | "r1": { | |
3277 | "bgp": { | |
3278 | "address_family": { | |
3279 | "ipv4": { | |
3280 | "unicast": { | |
3281 | "neighbor": { | |
3282 | "r2": { | |
3283 | "dest_link": { | |
3284 | "r1-link1": {"graceful-restart-disable": True} | |
3285 | } | |
3286 | } | |
3287 | } | |
3288 | } | |
3289 | }, | |
3290 | "ipv6": { | |
3291 | "unicast": { | |
3292 | "neighbor": { | |
3293 | "r2": { | |
3294 | "dest_link": { | |
3295 | "r1-link1": {"graceful-restart-disable": True} | |
3296 | } | |
3297 | } | |
3298 | } | |
3299 | } | |
3300 | }, | |
3301 | } | |
3302 | } | |
3303 | }, | |
3304 | } | |
3305 | ||
3306 | configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name, dut="r1", peer="r2") | |
3307 | ||
3308 | for addr_type in ADDR_TYPES: | |
3309 | result = verify_graceful_restart( | |
3310 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
3311 | ) | |
3312 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3313 | tc_name, result | |
3314 | ) | |
3315 | ||
3316 | # Verifying BGP RIB routes | |
3317 | dut = "r1" | |
3318 | peer = "r2" | |
3319 | next_hop = next_hop_per_address_family( | |
3320 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
3321 | ) | |
3322 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
3323 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
3324 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3325 | tc_name, result | |
3326 | ) | |
3327 | ||
3328 | # Verifying RIB routes | |
3329 | protocol = "bgp" | |
3330 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
3331 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3332 | tc_name, result | |
3333 | ) | |
3334 | ||
3335 | logger.info("[Phase 2] : R2 Goes from Disable to Restart Mode ") | |
3336 | ||
3337 | # Configure graceful-restart | |
3338 | input_dict = { | |
3339 | "r1": { | |
3340 | "bgp": { | |
3341 | "graceful-restart": {"preserve-fw-state": True}, | |
3342 | "address_family": { | |
3343 | "ipv4": { | |
3344 | "unicast": { | |
3345 | "neighbor": { | |
3346 | "r2": { | |
3347 | "dest_link": { | |
3348 | "r1-link1": {"graceful-restart": True} | |
3349 | } | |
3350 | } | |
3351 | } | |
3352 | } | |
3353 | }, | |
3354 | "ipv6": { | |
3355 | "unicast": { | |
3356 | "neighbor": { | |
3357 | "r2": { | |
3358 | "dest_link": { | |
3359 | "r1-link1": {"graceful-restart": True} | |
3360 | } | |
3361 | } | |
3362 | } | |
3363 | } | |
3364 | }, | |
3365 | }, | |
3366 | } | |
3367 | } | |
3368 | } | |
3369 | ||
3370 | result = create_router_bgp(tgen, topo, input_dict) | |
3371 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
3372 | ||
3373 | for addr_type in ADDR_TYPES: | |
3374 | clear_bgp(tgen, addr_type, "r1") | |
3375 | clear_bgp(tgen, addr_type, "r2") | |
3376 | ||
3377 | # Verify GR stats | |
3378 | input_dict = { | |
3379 | "r2": { | |
3380 | "bgp": { | |
3381 | "address_family": { | |
3382 | "ipv4": { | |
3383 | "unicast": { | |
3384 | "neighbor": { | |
3385 | "r1": { | |
3386 | "dest_link": { | |
3387 | "r2-link1": {"graceful-restart-helper": True} | |
3388 | } | |
3389 | } | |
3390 | } | |
3391 | } | |
3392 | }, | |
3393 | "ipv6": { | |
3394 | "unicast": { | |
3395 | "neighbor": { | |
3396 | "r1": { | |
3397 | "dest_link": { | |
3398 | "r2-link1": {"graceful-restart-helper": True} | |
3399 | } | |
3400 | } | |
3401 | } | |
3402 | } | |
3403 | }, | |
3404 | } | |
3405 | } | |
3406 | }, | |
3407 | "r1": { | |
3408 | "bgp": { | |
3409 | "address_family": { | |
3410 | "ipv4": { | |
3411 | "unicast": { | |
3412 | "neighbor": { | |
3413 | "r2": { | |
3414 | "dest_link": { | |
3415 | "r1-link1": {"graceful-restart": True} | |
3416 | } | |
3417 | } | |
3418 | } | |
3419 | } | |
3420 | }, | |
3421 | "ipv6": { | |
3422 | "unicast": { | |
3423 | "neighbor": { | |
3424 | "r2": { | |
3425 | "dest_link": { | |
3426 | "r1-link1": {"graceful-restart": True} | |
3427 | } | |
3428 | } | |
3429 | } | |
3430 | } | |
3431 | }, | |
3432 | } | |
3433 | } | |
3434 | }, | |
3435 | } | |
3436 | ||
3437 | # here the verify_graceful_restart fro the neighbor would be | |
3438 | # "NotReceived" as the latest GR config is not yet applied. | |
3439 | for addr_type in ADDR_TYPES: | |
3440 | result = verify_graceful_restart( | |
3441 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
3442 | ) | |
3443 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3444 | tc_name, result | |
3445 | ) | |
3446 | ||
3447 | logger.info("[Phase 3] : R1 goes for reload ") | |
3448 | ||
3449 | kill_router_daemons(tgen, "r1", ["bgpd"]) | |
3450 | ||
3451 | logger.info( | |
3452 | "[Phase 4] : R1 is still down, restart time 120 sec." | |
3453 | " So time verify the routes are present in BGP RIB and ZEBRA " | |
3454 | ) | |
3455 | ||
3456 | for addr_type in ADDR_TYPES: | |
3457 | # Verifying RIB routes | |
3458 | next_hop = next_hop_per_address_family( | |
3459 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
3460 | ) | |
3461 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
3462 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
3463 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3464 | tc_name, result | |
3465 | ) | |
3466 | ||
3467 | logger.info("[Phase 6] : R1 is about to come up now ") | |
3468 | start_router_daemons(tgen, "r1", ["bgpd"]) | |
3469 | ||
3470 | logger.info("[Phase 4] : R1 is UP now, so time to collect GR stats ") | |
3471 | ||
3472 | for addr_type in ADDR_TYPES: | |
3473 | result = verify_graceful_restart( | |
3474 | tgen, topo, addr_type, input_dict, dut="r1", peer="r2" | |
3475 | ) | |
3476 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3477 | tc_name, result | |
3478 | ) | |
3479 | ||
3480 | # Verifying BGP RIB routes | |
3481 | next_hop = next_hop_per_address_family( | |
3482 | tgen, dut, peer, addr_type, NEXT_HOP_IP_2 | |
3483 | ) | |
3484 | input_topo = {key: topo["routers"][key] for key in ["r2"]} | |
3485 | result = verify_bgp_rib(tgen, addr_type, dut, input_topo, next_hop) | |
3486 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3487 | tc_name, result | |
3488 | ) | |
3489 | ||
3490 | # Verifying RIB routes | |
3491 | result = verify_rib(tgen, addr_type, dut, input_topo, next_hop, protocol) | |
3492 | assert result is True, "Testcase {} : Failed \n Error {}".format( | |
3493 | tc_name, result | |
3494 | ) | |
3495 | ||
3496 | write_test_footer(tc_name) | |
3497 | ||
3498 | ||
3499 | if __name__ == "__main__": | |
3500 | args = ["-s"] + sys.argv[1:] | |
3501 | sys.exit(pytest.main(args)) |