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9e3bab5f | 1 | #!/usr/bin/env python |
acddc0ed | 2 | # SPDX-License-Identifier: ISC |
9e3bab5f | 3 | |
4 | # | |
5 | # Copyright (c) 2021 by VMware, Inc. ("VMware") | |
6 | # Used Copyright (c) 2018 by Network Device Education Foundation, Inc. | |
7 | # ("NetDEF") in this file. | |
8 | # | |
9e3bab5f | 9 | |
10 | ||
11 | """RFC5549 Automation.""" | |
12 | import os | |
13 | import sys | |
14 | import time | |
9e3bab5f | 15 | import pytest |
bc6d1b15 P |
16 | import functools |
17 | import json | |
9e3bab5f | 18 | |
19 | # Save the Current Working Directory to find configuration files. | |
20 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
21 | sys.path.append(os.path.join(CWD, "../")) | |
22 | sys.path.append(os.path.join(CWD, "../../")) | |
23 | ||
bc6d1b15 P |
24 | |
25 | from lib import topotest | |
26 | from lib.topogen import Topogen, TopoRouter, get_topogen | |
9e3bab5f | 27 | |
28 | from lib.common_config import ( | |
29 | write_test_header, | |
30 | start_topology, | |
9e3bab5f | 31 | write_test_footer, |
32 | start_router, | |
33 | stop_router, | |
34 | verify_rib, | |
35 | create_static_routes, | |
36 | check_address_types, | |
37 | reset_config_on_routers, | |
38 | step, | |
9e3bab5f | 39 | get_frr_ipv6_linklocal, |
40 | ) | |
41 | from lib.topolog import logger | |
4953ca97 | 42 | from lib.bgp import create_router_bgp, verify_bgp_convergence, verify_bgp_rib |
9e3bab5f | 43 | |
4953ca97 | 44 | from lib.topojson import build_config_from_json |
9e3bab5f | 45 | |
cbdecd68 DS |
46 | pytestmark = [pytest.mark.bgpd, pytest.mark.staticd] |
47 | ||
9e3bab5f | 48 | # Global variables |
49 | topo = None | |
9e3bab5f | 50 | |
51 | # Global variables | |
52 | NO_OF_RTES = 2 | |
53 | NETWORK_CMD_IP = "1.0.1.17/32" | |
54 | NETWORK = { | |
55 | "ipv4": [ | |
56 | "11.0.20.1/32", | |
57 | "11.0.20.2/32", | |
58 | "11.0.20.3/32", | |
59 | "11.0.20.4/32", | |
60 | "11.0.20.5/32", | |
61 | ], | |
62 | "ipv6": ["1::1/128", "1::2/128", "1::3/128", "1::4/128", "1::5/128"], | |
63 | } | |
64 | MASK = {"ipv4": "32", "ipv6": "128"} | |
65 | NEXT_HOP = { | |
66 | "ipv4": ["10.0.0.1", "10.0.1.1", "10.0.2.1", "10.0.3.1", "10.0.4.1"], | |
67 | "ipv6": ["Null0", "Null0", "Null0", "Null0", "Null0"], | |
68 | } | |
69 | INTF_LIST = [ | |
70 | "r2-link0", | |
71 | "r2-link1", | |
72 | "r2-link2", | |
73 | "r2-link3", | |
74 | "r2-link4", | |
75 | "r2-link5", | |
76 | "r2-link6", | |
77 | "r2-link7", | |
78 | ] | |
79 | ADDR_TYPES = check_address_types() | |
80 | TOPOOLOGY = """ | |
81 | Please view in a fixed-width font such as Courier. | |
82 | ||
83 | +----+ | |
84 | | R4 | | |
85 | | | | |
86 | +--+-+ | |
87 | | ipv4 nbr | |
88 | no bgp ebgp/ibgp | | |
89 | | ebgp/ibgp | |
90 | +----+ 5links +----+ 8links +--+-+ +----+ | |
91 | |R0 +----------+ R1 +------------+ R2 | ipv6 nbr |R3 | | |
92 | | +----------+ +------------+ +-------------+ | | |
93 | +----+ +----+ ipv6 nbr +----+ +----+ | |
94 | """ | |
95 | ||
96 | TESTCASES = """ | |
97 | 1. Verify IPv4 routes are advertised when IPv6 EBGP loopback session | |
98 | established using Unnumbered interface | |
99 | 2. Verify IPv4 routes are installed with correct nexthop after | |
100 | shut / no shut of nexthop and BGP peer interfaces | |
101 | 3. Verify IPv4 routes are intact after stop and start the FRR services | |
102 | """ | |
103 | ||
104 | ||
9e3bab5f | 105 | def setup_module(mod): |
106 | """Set up the pytest environment.""" | |
107 | global topo, ADDR_TYPES | |
108 | ||
109 | testsuite_run_time = time.asctime(time.localtime(time.time())) | |
110 | logger.info("Testsuite start time: {}".format(testsuite_run_time)) | |
111 | logger.info("=" * 40) | |
112 | ||
113 | logger.info("Running setup_module to create topology") | |
114 | ||
115 | # This function initiates the topology build with Topogen... | |
e82b531d CH |
116 | json_file = "{}/rfc5549_ebgp_unnumbered_nbr.json".format(CWD) |
117 | tgen = Topogen(json_file, mod.__name__) | |
118 | global topo | |
119 | topo = tgen.json_topo | |
9e3bab5f | 120 | |
121 | # Starting topology, create tmp files which are loaded to routers | |
d60a3f0e | 122 | # to start daemons and then start routers |
9e3bab5f | 123 | start_topology(tgen) |
124 | ||
125 | # Creating configuration from JSON | |
126 | build_config_from_json(tgen, topo) | |
127 | # Don't run this test if we have any failure. | |
128 | if tgen.routers_have_failure(): | |
129 | pytest.skip(tgen.errors) | |
130 | ||
131 | BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo) | |
132 | assert BGP_CONVERGENCE is True, "setup_module :Failed \n Error:" " {}".format( | |
133 | BGP_CONVERGENCE | |
134 | ) | |
135 | logger.info("Running setup_module() done") | |
136 | ||
137 | ||
138 | def teardown_module(): | |
139 | """Teardown the pytest environment.""" | |
140 | logger.info("Running teardown_module to delete topology") | |
141 | ||
142 | tgen = get_topogen() | |
143 | ||
144 | # Stop toplogy and Remove tmp files | |
145 | tgen.stop_topology() | |
146 | ||
147 | ||
148 | def get_llip(onrouter, intf): | |
149 | """ | |
dea6dce3 | 150 | API to get the link local ipv6 address of a particular interface |
9e3bab5f | 151 | |
152 | Parameters | |
153 | ---------- | |
154 | * `fromnode`: Source node | |
155 | * `tonode` : interface for which link local ip needs to be returned. | |
156 | ||
157 | Usage | |
158 | ----- | |
159 | result = get_llip('r1', 'r2-link0') | |
160 | ||
161 | Returns | |
162 | ------- | |
163 | 1) link local ipv6 address from the interface. | |
164 | 2) errormsg - when link local ip not found. | |
165 | """ | |
166 | tgen = get_topogen() | |
167 | intf = topo["routers"][onrouter]["links"][intf]["interface"] | |
168 | llip = get_frr_ipv6_linklocal(tgen, onrouter, intf) | |
169 | if llip: | |
170 | logger.info("llip ipv6 address to be set as NH is %s", llip) | |
171 | return llip | |
172 | return None | |
173 | ||
174 | ||
175 | def get_glipv6(onrouter, intf): | |
176 | """ | |
dea6dce3 | 177 | API to get the global ipv6 address of a particular interface |
9e3bab5f | 178 | |
179 | Parameters | |
180 | ---------- | |
181 | * `onrouter`: Source node | |
182 | * `intf` : interface for which link local ip needs to be returned. | |
183 | ||
184 | Usage | |
185 | ----- | |
186 | result = get_glipv6('r1', 'r2-link0') | |
187 | ||
188 | Returns | |
189 | ------- | |
190 | 1) global ipv6 address from the interface. | |
191 | 2) errormsg - when link local ip not found. | |
192 | """ | |
193 | glipv6 = (topo["routers"][onrouter]["links"][intf]["ipv6"]).split("/")[0] | |
194 | if glipv6: | |
195 | logger.info("Global ipv6 address to be set as NH is %s", glipv6) | |
196 | return glipv6 | |
197 | return None | |
198 | ||
199 | ||
200 | # ################################## | |
201 | # Test cases start here. | |
202 | # ################################## | |
203 | ||
204 | ||
205 | def test_unnumbered_loopback_ebgp_nbr_p0(request): | |
206 | """ | |
207 | ||
208 | Test extended capability nexthop with un numbered ebgp. | |
209 | ||
210 | Verify IPv4 routes are advertised when IPv6 EBGP loopback | |
211 | session established using Unnumbered interface | |
212 | """ | |
213 | tc_name = request.node.name | |
214 | write_test_header(tc_name) | |
215 | tgen = get_topogen() | |
216 | # Don't run this test if we have any failure. | |
217 | if tgen.routers_have_failure(): | |
218 | pytest.skip(tgen.errors) | |
219 | reset_config_on_routers(tgen) | |
220 | ||
221 | step("Configure IPv6 EBGP Unnumbered session between R1 and R2") | |
222 | step("Enable capability extended-nexthop on both the IPv6 BGP peers") | |
223 | step("Activate same IPv6 nbr from IPv4 unicast family") | |
224 | step("Enable cap ext nh on r1 and r2 and activate in ipv4 addr family") | |
225 | step("Verify bgp convergence as ipv6 nbr is enabled on ipv4 addr family.") | |
226 | ||
227 | bgp_convergence = verify_bgp_convergence(tgen, topo) | |
228 | assert bgp_convergence is True, "Testcase {} :Failed \n Error: {}".format( | |
229 | tc_name, bgp_convergence | |
230 | ) | |
231 | ||
232 | step(" Configure 5 IPv4 static" " routes on R1, Nexthop as different links of R0") | |
233 | for rte in range(0, NO_OF_RTES): | |
234 | # Create Static routes | |
235 | input_dict = { | |
236 | "r1": { | |
237 | "static_routes": [ | |
238 | { | |
239 | "network": NETWORK["ipv4"][rte], | |
240 | "no_of_ip": 1, | |
241 | "next_hop": NEXT_HOP["ipv4"][rte], | |
242 | } | |
243 | ] | |
244 | } | |
245 | } | |
246 | result = create_static_routes(tgen, input_dict) | |
247 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
248 | tc_name, result | |
249 | ) | |
250 | ||
251 | step( | |
252 | "Advertise static routes from IPv4 unicast family and IPv6 " | |
253 | "unicast family respectively from R1 using red static cmd " | |
254 | "Advertise loopback from IPv4 unicast family using network command " | |
255 | "from R1" | |
256 | ) | |
257 | ||
258 | configure_bgp_on_r1 = { | |
259 | "r1": { | |
260 | "bgp": { | |
261 | "address_family": { | |
262 | "ipv4": { | |
263 | "unicast": { | |
264 | "redistribute": [{"redist_type": "static"}], | |
265 | "advertise_networks": [ | |
266 | {"network": NETWORK_CMD_IP, "no_of_network": 1} | |
267 | ], | |
268 | } | |
269 | }, | |
270 | "ipv6": {"unicast": {"redistribute": [{"redist_type": "static"}]}}, | |
271 | } | |
272 | } | |
273 | } | |
274 | } | |
275 | result = create_router_bgp(tgen, topo, configure_bgp_on_r1) | |
276 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
277 | step( | |
278 | "IPv4 routes advertised using static and network command are " | |
279 | " received on R2 BGP and routing table , " | |
280 | "verify using show ip bgp, show ip route for IPv4 routes ." | |
281 | ) | |
9e3bab5f | 282 | llip = get_llip("r1", "r2-link0") |
283 | assert llip is not None, "Testcase {} : Failed \n Error: {}".format(tc_name, llip) | |
284 | ||
285 | dut = "r2" | |
286 | protocol = "bgp" | |
287 | for rte in range(0, NO_OF_RTES): | |
288 | # verify the routes with nh as ext_nh | |
289 | verify_nh_for_static_rtes = { | |
290 | "r1": { | |
291 | "static_routes": [ | |
292 | {"network": NETWORK["ipv4"][rte], "no_of_ip": 1, "next_hop": llip} | |
293 | ] | |
294 | } | |
295 | } | |
296 | """ interface_list = ['r1-link0','r1-link1'] | |
297 | nh_list =[] | |
298 | for i in range(NO_OF_RTES): | |
299 | nh_list.append(topo['routers']['r2']['links'][i][ | |
300 | 'interface']) """ | |
301 | bgp_rib = verify_rib( | |
302 | tgen, | |
303 | "ipv4", | |
304 | dut, | |
305 | # verify_nh_for_static_rtes, next_hop='r2-r1-eth0') | |
306 | verify_nh_for_static_rtes, | |
307 | next_hop=llip, | |
308 | ) | |
309 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format( | |
310 | tc_name, bgp_rib | |
311 | ) | |
312 | result = verify_rib( | |
313 | tgen, | |
314 | "ipv4", | |
315 | dut, | |
316 | verify_nh_for_static_rtes, | |
317 | next_hop=llip, | |
318 | protocol=protocol, | |
319 | ) | |
320 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
321 | tc_name, result | |
322 | ) | |
323 | ||
324 | # verify the routes with nh as ext_nh | |
325 | verify_nh_for_nw_rtes = { | |
326 | "r1": { | |
327 | "static_routes": [ | |
328 | {"network": NETWORK_CMD_IP, "no_of_ip": 1, "next_hop": llip} | |
329 | ] | |
330 | } | |
331 | } | |
332 | ||
333 | bgp_rib = verify_rib( | |
334 | tgen, | |
335 | "ipv4", | |
336 | dut, | |
337 | # verify_nh_for_nw_rtes, next_hop='r2-r1-eth0') | |
338 | verify_nh_for_nw_rtes, | |
339 | next_hop=llip, | |
340 | ) | |
341 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format(tc_name, bgp_rib) | |
342 | result = verify_rib( | |
343 | tgen, "ipv4", dut, verify_nh_for_nw_rtes, next_hop=llip, protocol=protocol | |
344 | ) | |
345 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
346 | # stop/start -> restart FRR router and verify | |
347 | stop_router(tgen, "r1") | |
348 | stop_router(tgen, "r2") | |
349 | start_router(tgen, "r1") | |
350 | start_router(tgen, "r2") | |
351 | step( | |
352 | "After stop/start of FRR services , verify session up and routes " | |
353 | "came up fine ,nh is proper using show bgp & show ipv6 route on R2 " | |
354 | ) | |
355 | bgp_convergence = verify_bgp_convergence(tgen, topo) | |
356 | assert bgp_convergence is True, "Testcase {} :Failed \n Error: {}".format( | |
357 | tc_name, bgp_convergence | |
358 | ) | |
359 | ||
360 | llip = get_llip("r1", "r2-link0") | |
361 | assert llip is not None, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
362 | ||
363 | # verify the routes with nh as ext_nh | |
364 | verify_nh_for_static_rtes = { | |
365 | "r1": { | |
366 | "static_routes": [ | |
367 | { | |
368 | "network": NETWORK["ipv4"][0], | |
369 | "no_of_ip": NO_OF_RTES, | |
370 | "next_hop": llip, | |
371 | } | |
372 | ] | |
373 | } | |
374 | } | |
375 | bgp_rib = verify_bgp_rib( | |
376 | tgen, | |
377 | "ipv4", | |
378 | dut, | |
379 | # verify_nh_for_static_rtes, next_hop='r2-r1-eth0') | |
380 | verify_nh_for_static_rtes, | |
381 | next_hop=llip, | |
382 | ) | |
383 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format(tc_name, bgp_rib) | |
384 | result = verify_rib( | |
385 | tgen, "ipv4", dut, verify_nh_for_static_rtes, next_hop=llip, protocol=protocol | |
386 | ) | |
387 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
388 | ||
389 | verify_nh_for_nw_rtes = { | |
390 | "r1": { | |
391 | "static_routes": [ | |
392 | {"network": NETWORK_CMD_IP, "no_of_ip": 1, "next_hop": llip} | |
393 | ] | |
394 | } | |
395 | } | |
396 | bgp_rib = verify_rib( | |
397 | tgen, | |
398 | "ipv4", | |
399 | dut, | |
400 | # verify_nh_for_nw_rtes, next_hop='r2-r1-eth0') | |
401 | verify_nh_for_nw_rtes, | |
402 | next_hop=llip, | |
403 | ) | |
404 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format(tc_name, bgp_rib) | |
405 | result = verify_rib( | |
406 | tgen, "ipv4", dut, verify_nh_for_nw_rtes, next_hop=llip, protocol=protocol | |
407 | ) | |
408 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
409 | write_test_footer(tc_name) | |
410 | ||
411 | ||
412 | def test_restart_frr_p2(request): | |
413 | """ | |
414 | ||
415 | Test extended capability nexthop , restart frr. | |
416 | ||
417 | Verify IPv4 routes are intact after stop and start the FRR services | |
418 | """ | |
419 | tc_name = request.node.name | |
420 | write_test_header(tc_name) | |
421 | tgen = get_topogen() | |
422 | # Don't run this test if we have any failure. | |
423 | if tgen.routers_have_failure(): | |
424 | pytest.skip(tgen.errors) | |
425 | reset_config_on_routers(tgen) | |
426 | step("Configure IPv6 EBGP Unnumbered session between R1 and R2") | |
427 | step("Enable capability extended-nexthop on both the IPv6 BGP peers") | |
428 | step("Activate same IPv6 nbr from IPv4 unicast family") | |
429 | step("Enable cap ext nh on r1 and r2 and activate in ipv4 addr family") | |
430 | step("Verify bgp convergence as ipv6 nbr is enabled on ipv4 addr family.") | |
9e3bab5f | 431 | bgp_convergence = verify_bgp_convergence(tgen, topo) |
432 | assert bgp_convergence is True, "Testcase {} :Failed \n Error: {}".format( | |
433 | tc_name, bgp_convergence | |
434 | ) | |
435 | ||
436 | step(" Configure 5 IPv4 static" " routes on R1, Nexthop as different links of R0") | |
437 | for rte in range(0, NO_OF_RTES): | |
438 | # Create Static routes | |
439 | input_dict = { | |
440 | "r1": { | |
441 | "static_routes": [ | |
442 | { | |
443 | "network": NETWORK["ipv4"][rte], | |
444 | "no_of_ip": 1, | |
445 | "next_hop": NEXT_HOP["ipv4"][rte], | |
446 | } | |
447 | ] | |
448 | } | |
449 | } | |
450 | result = create_static_routes(tgen, input_dict) | |
451 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
452 | tc_name, result | |
453 | ) | |
454 | ||
455 | step( | |
456 | "Advertise static routes from IPv4 unicast family and IPv6 " | |
457 | "unicast family respectively from R1 using red static cmd " | |
458 | "Advertise loopback from IPv4 unicast family using network command " | |
459 | "from R1" | |
460 | ) | |
461 | ||
462 | configure_bgp_on_r1 = { | |
463 | "r1": { | |
464 | "bgp": { | |
465 | "address_family": { | |
466 | "ipv4": { | |
467 | "unicast": { | |
468 | "redistribute": [{"redist_type": "static"}], | |
469 | "advertise_networks": [ | |
470 | {"network": NETWORK_CMD_IP, "no_of_network": 1} | |
471 | ], | |
472 | } | |
473 | }, | |
474 | "ipv6": {"unicast": {"redistribute": [{"redist_type": "static"}]}}, | |
475 | } | |
476 | } | |
477 | } | |
478 | } | |
479 | result = create_router_bgp(tgen, topo, configure_bgp_on_r1) | |
480 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
481 | step( | |
482 | "IPv4 routes advertised using static and network command are " | |
483 | " received on R2 BGP and routing table , " | |
484 | "verify using show ip bgp, show ip route for IPv4 routes ." | |
485 | ) | |
486 | ||
487 | llip = get_llip("r1", "r2-link0") | |
488 | assert llip is not None, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
489 | ||
490 | dut = "r2" | |
491 | protocol = "bgp" | |
492 | verify_nh_for_static_rtes = { | |
493 | "r1": { | |
494 | "static_routes": [ | |
495 | { | |
496 | "network": NETWORK["ipv4"][0], | |
497 | "no_of_ip": NO_OF_RTES, | |
498 | "next_hop": llip, | |
499 | } | |
500 | ] | |
501 | } | |
502 | } | |
503 | bgp_rib = verify_rib(tgen, "ipv4", dut, verify_nh_for_static_rtes, next_hop=llip) | |
504 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format(tc_name, bgp_rib) | |
505 | result = verify_rib( | |
506 | tgen, "ipv4", dut, verify_nh_for_static_rtes, next_hop=llip, protocol=protocol | |
507 | ) | |
508 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
509 | ||
510 | verify_nh_for_nw_rtes = { | |
511 | "r1": { | |
512 | "static_routes": [ | |
513 | {"network": NETWORK_CMD_IP, "no_of_ip": 1, "next_hop": llip} | |
514 | ] | |
515 | } | |
516 | } | |
517 | ||
518 | bgp_rib = verify_rib(tgen, "ipv4", dut, verify_nh_for_nw_rtes, next_hop=llip) | |
519 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format(tc_name, bgp_rib) | |
520 | result = verify_rib( | |
521 | tgen, "ipv4", dut, verify_nh_for_nw_rtes, next_hop=llip, protocol=protocol | |
522 | ) | |
523 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
524 | ||
525 | # stop/start -> restart FRR router and verify | |
526 | stop_router(tgen, "r1") | |
527 | stop_router(tgen, "r2") | |
528 | start_router(tgen, "r1") | |
529 | start_router(tgen, "r2") | |
530 | ||
531 | step( | |
532 | "After stop/start of FRR services , verify session up and routes " | |
533 | "came up fine ,nh is proper using show bgp & show ipv6 route on R2 " | |
534 | ) | |
535 | bgp_convergence = verify_bgp_convergence(tgen, topo) | |
536 | assert bgp_convergence is True, "Testcase {} :Failed \n Error: {}".format( | |
537 | tc_name, bgp_convergence | |
538 | ) | |
539 | ||
540 | llip = get_llip("r1", "r2-link0") | |
541 | assert llip is not None, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
542 | ||
543 | # verify the routes with nh as ext_nh | |
544 | verify_nh_for_static_rtes = { | |
545 | "r1": { | |
546 | "static_routes": [ | |
547 | {"network": NETWORK["ipv4"][0], "no_of_ip": 1, "next_hop": llip} | |
548 | ] | |
549 | } | |
550 | } | |
551 | bgp_rib = verify_rib(tgen, "ipv4", dut, verify_nh_for_static_rtes, next_hop=llip) | |
552 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format(tc_name, bgp_rib) | |
553 | result = verify_rib( | |
554 | tgen, "ipv4", dut, verify_nh_for_static_rtes, next_hop=llip, protocol=protocol | |
555 | ) | |
556 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
557 | ||
558 | # verify the routes with nh as ext_nh | |
559 | verify_nh_for_nw_rtes = { | |
560 | "r1": { | |
561 | "static_routes": [ | |
562 | {"network": NETWORK_CMD_IP, "no_of_ip": 1, "next_hop": llip} | |
563 | ] | |
564 | } | |
565 | } | |
566 | bgp_rib = verify_rib(tgen, "ipv4", dut, verify_nh_for_nw_rtes, next_hop=llip) | |
567 | assert bgp_rib is True, "Testcase {} : Failed \n Error: {}".format(tc_name, bgp_rib) | |
568 | result = verify_rib( | |
569 | tgen, "ipv4", dut, verify_nh_for_nw_rtes, next_hop=llip, protocol=protocol | |
570 | ) | |
571 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
572 | write_test_footer(tc_name) | |
573 | ||
574 | ||
bc6d1b15 P |
575 | def test_configure_gua_on_unnumbered_intf(request): |
576 | """ | |
577 | Configure a global V6 address on an unnumbered interface on R1 | |
578 | ||
579 | """ | |
580 | tc_name = request.node.name | |
581 | write_test_header(tc_name) | |
582 | tgen = get_topogen() | |
583 | # Don't run this test if we have any failure. | |
584 | if tgen.routers_have_failure(): | |
585 | pytest.skip(tgen.errors) | |
586 | reset_config_on_routers(tgen) | |
587 | ||
588 | step("Configure IPv6 EBGP Unnumbered session between R1 and R2") | |
589 | step("Enable capability extended-nexthop on both the IPv6 BGP peers") | |
590 | step("Activate same IPv6 nbr from IPv4 unicast family") | |
591 | step("Enable cap ext nh on r1 and r2 and activate in ipv4 addr family") | |
592 | step("Verify bgp convergence as ipv6 nbr is enabled on ipv4 addr family.") | |
593 | bgp_convergence = verify_bgp_convergence(tgen, topo) | |
594 | assert bgp_convergence is True, "Testcase {} :Failed \n Error: {}".format( | |
595 | tc_name, bgp_convergence | |
596 | ) | |
597 | ||
598 | step(" Configure 5 IPv4 static" " routes on R1, Nexthop as different links of R0") | |
599 | for rte in range(0, NO_OF_RTES): | |
600 | # Create Static routes | |
601 | input_dict = { | |
602 | "r1": { | |
603 | "static_routes": [ | |
604 | { | |
605 | "network": NETWORK["ipv4"][rte], | |
606 | "no_of_ip": 1, | |
607 | "next_hop": NEXT_HOP["ipv4"][rte], | |
608 | } | |
609 | ] | |
610 | } | |
611 | } | |
612 | result = create_static_routes(tgen, input_dict) | |
613 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
614 | tc_name, result | |
615 | ) | |
616 | ||
617 | step( | |
618 | "Advertise static routes from IPv4 unicast family and IPv6 " | |
619 | "unicast family respectively from R1 using red static cmd " | |
620 | "Advertise loopback from IPv4 unicast family using network command " | |
621 | "from R1" | |
622 | ) | |
623 | ||
624 | configure_bgp_on_r1 = { | |
625 | "r1": { | |
626 | "bgp": { | |
627 | "address_family": { | |
628 | "ipv4": { | |
629 | "unicast": { | |
630 | "redistribute": [{"redist_type": "static"}], | |
631 | "advertise_networks": [ | |
632 | {"network": NETWORK_CMD_IP, "no_of_network": 1} | |
633 | ], | |
634 | } | |
635 | }, | |
636 | "ipv6": {"unicast": {"redistribute": [{"redist_type": "static"}]}}, | |
637 | } | |
638 | } | |
639 | } | |
640 | } | |
641 | result = create_router_bgp(tgen, topo, configure_bgp_on_r1) | |
642 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
643 | ||
644 | r2 = tgen.gears["r2"] | |
645 | ||
646 | def bgp_prefix_received_gua_nh(router): | |
647 | output = json.loads(router.vtysh_cmd("show bgp ipv4 unicast 11.0.20.1/32 json")) | |
648 | expected = { | |
649 | "prefix": "11.0.20.1/32", | |
650 | "paths": [ | |
651 | { | |
652 | "nexthops": [ | |
653 | { | |
654 | "ip": "5001:dead:beef::1", | |
655 | "hostname": "r1", | |
656 | "afi": "ipv6", | |
657 | "scope": "global", | |
658 | } | |
659 | ] | |
660 | } | |
661 | ], | |
662 | } | |
663 | return topotest.json_cmp(output, expected) | |
664 | ||
665 | def bgp_prefix_received_v4_mapped_v6_nh(router): | |
666 | output = json.loads(router.vtysh_cmd("show bgp ipv4 unicast 11.0.20.1/32 json")) | |
667 | expected = { | |
668 | "prefix": "11.0.20.1/32", | |
669 | "paths": [ | |
670 | { | |
671 | "nexthops": [ | |
672 | { | |
673 | "ip": "::ffff:a00:501", | |
674 | "hostname": "r1", | |
675 | "afi": "ipv6", | |
676 | "scope": "global", | |
677 | } | |
678 | ] | |
679 | } | |
680 | ], | |
681 | } | |
682 | return topotest.json_cmp(output, expected) | |
683 | ||
684 | step("Configure a global V6 address on an unnumbered interface on R1") | |
685 | output = tgen.gears["r1"].vtysh_cmd( | |
686 | """ | |
687 | configure terminal | |
688 | interface r1-r2-eth5 | |
689 | ipv6 address 5001:dead:beef::1/126 | |
690 | ! | |
691 | """ | |
692 | ) | |
693 | ||
694 | # verify that r2 has received prefix with GUA as nexthop | |
695 | test_func = functools.partial(bgp_prefix_received_gua_nh, r2) | |
696 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
697 | assert ( | |
698 | result is None | |
699 | ), "Testcase {} : Failed \n Error: Nexthop for prefix 11.0.20.1 \ | |
700 | is not 5001:dead:beef::1".format( | |
701 | tc_name | |
702 | ) | |
703 | ||
704 | step("Configure a secondary global V6 address on an unnumbered interface on R1") | |
705 | output = tgen.gears["r1"].vtysh_cmd( | |
706 | """ | |
707 | configure terminal | |
708 | interface r1-r2-eth5 | |
709 | ipv6 address 7771:dead:beef::1/126 | |
710 | ! | |
711 | """ | |
712 | ) | |
713 | # verify that r1 did not readvertise the prefix with secondary V6 address as the nexthop | |
714 | test_func = functools.partial(bgp_prefix_received_gua_nh, r2) | |
715 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
716 | assert ( | |
717 | result is None | |
718 | ), "Testcase {} : Failed \n Error: Nexthop for prefix 11.0.20.1 \ | |
719 | is not 5001:dead:beef::1".format( | |
720 | tc_name | |
721 | ) | |
722 | ||
723 | step("Unconfigure the secondary global V6 address from unnumbered interface on R1") | |
724 | output = tgen.gears["r1"].vtysh_cmd( | |
725 | """ | |
726 | configure terminal | |
727 | interface r1-r2-eth5 | |
728 | no ipv6 address 7771:dead:beef::1/126 | |
729 | ! | |
730 | """ | |
731 | ) | |
732 | # verify that r1 still has the prefix with primary GUA as the nexthop | |
733 | test_func = functools.partial(bgp_prefix_received_gua_nh, r2) | |
734 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
735 | assert ( | |
736 | result is None | |
737 | ), "Testcase {} : Failed \n Error: Nexthop for prefix 11.0.20.1 \ | |
738 | is not 5001:dead:beef::1".format( | |
739 | tc_name | |
740 | ) | |
741 | ||
742 | step("Unconfigure the primary global V6 address from unnumbered interface on R1") | |
743 | output = tgen.gears["r1"].vtysh_cmd( | |
744 | """ | |
745 | configure terminal | |
746 | interface r1-r2-eth5 | |
747 | no ipv6 address 5001:dead:beef::1/126 | |
748 | ! | |
749 | """ | |
750 | ) | |
751 | # verify that r1 has rcvd the prefix with v4-mapped-v6 address as the nexthop | |
752 | test_func = functools.partial(bgp_prefix_received_v4_mapped_v6_nh, r2) | |
753 | _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) | |
754 | assert ( | |
755 | result is None | |
756 | ), "Testcase {} : Failed \n Error: Nexthop for prefix 11.0.20.1 \ | |
757 | is not ::ffff:a00:501".format( | |
758 | tc_name | |
759 | ) | |
760 | ||
761 | write_test_footer(tc_name) | |
762 | ||
763 | ||
9e3bab5f | 764 | if __name__ == "__main__": |
765 | args = ["-s"] + sys.argv[1:] | |
766 | sys.exit(pytest.main(args)) |