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1 | #!/usr/bin/env python |
2 | ||
3 | # | |
4 | # Copyright (c) 2019 by VMware, Inc. ("VMware") | |
5 | # Used Copyright (c) 2018 by Network Device Education Foundation, Inc. | |
6 | # ("NetDEF") in this file. | |
7 | # | |
8 | # Permission to use, copy, modify, and/or distribute this software | |
9 | # for any purpose with or without fee is hereby granted, provided | |
10 | # that the above copyright notice and this permission notice appear | |
11 | # in all copies. | |
12 | # | |
13 | # THE SOFTWARE IS PROVIDED "AS IS" AND VMWARE DISCLAIMS ALL WARRANTIES | |
14 | # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
15 | # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VMWARE BE LIABLE FOR | |
16 | # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY | |
17 | # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
18 | # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS | |
19 | # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
20 | # OF THIS SOFTWARE. | |
21 | # | |
22 | ||
23 | ||
24 | """ | |
25 | Following tests are covered to test ecmp functionality on iBGP. | |
26 | 1. Verify bgp fast-convergence functionality | |
27 | """ | |
28 | import os | |
29 | import sys | |
30 | import time | |
57ea1920 PG |
31 | import pytest |
32 | from time import sleep | |
33 | ||
34 | # Save the Current Working Directory to find configuration files. | |
35 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
36 | sys.path.append(os.path.join(CWD, "../")) | |
37 | sys.path.append(os.path.join(CWD, "../../")) | |
38 | ||
39 | # pylint: disable=C0413 | |
40 | # Import topogen and topotest helpers | |
4953ca97 | 41 | from lib.topogen import get_topogen |
e82b531d | 42 | from lib import topojson |
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43 | |
44 | from lib.common_config import ( | |
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45 | write_test_header, |
46 | write_test_footer, | |
47 | verify_rib, | |
48 | create_static_routes, | |
49 | check_address_types, | |
57ea1920 | 50 | reset_config_on_routers, |
57ea1920 PG |
51 | shutdown_bringup_interface, |
52 | apply_raw_config, | |
53 | ) | |
54 | from lib.topolog import logger | |
4953ca97 | 55 | from lib.bgp import create_router_bgp, verify_bgp_convergence |
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56 | |
57 | ||
58 | pytestmark = [pytest.mark.bgpd, pytest.mark.staticd] | |
59 | ||
60 | ||
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61 | # Global variables |
62 | NEXT_HOPS = {"ipv4": [], "ipv6": []} | |
63 | NETWORK = {"ipv4": "192.168.1.10/32", "ipv6": "fd00:0:0:1::10/128"} | |
64 | NEXT_HOP_IP = {"ipv4": "10.0.0.1", "ipv6": "fd00::1"} | |
65 | BGP_CONVERGENCE = False | |
66 | ||
67 | ||
57ea1920 PG |
68 | def setup_module(mod): |
69 | """ | |
70 | Sets up the pytest environment. | |
71 | ||
72 | * `mod`: module name | |
73 | """ | |
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74 | global ADDR_TYPES |
75 | ||
76 | testsuite_run_time = time.asctime(time.localtime(time.time())) | |
77 | logger.info("Testsuite start time: {}".format(testsuite_run_time)) | |
78 | logger.info("=" * 40) | |
79 | ||
e82b531d CH |
80 | tgen = topojson.setup_module_from_json(mod.__file__) |
81 | topo = tgen.json_topo | |
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82 | |
83 | # Don't run this test if we have any failure. | |
84 | if tgen.routers_have_failure(): | |
85 | pytest.skip(tgen.errors) | |
86 | ||
87 | # Api call verify whether BGP is converged | |
88 | ADDR_TYPES = check_address_types() | |
89 | ||
90 | BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo) | |
91 | assert BGP_CONVERGENCE is True, "setup_module :Failed \n Error:" " {}".format( | |
92 | BGP_CONVERGENCE | |
93 | ) | |
94 | ||
95 | # STATIC_ROUTE = True | |
96 | logger.info("Running setup_module() done") | |
97 | ||
98 | ||
99 | def teardown_module(): | |
e82b531d | 100 | get_topogen().stop_topology() |
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101 | |
102 | ||
103 | def static_or_nw(tgen, topo, tc_name, test_type, dut): | |
104 | ||
105 | if test_type == "redist_static": | |
106 | input_dict_static = { | |
107 | dut: { | |
108 | "static_routes": [ | |
109 | {"network": NETWORK["ipv4"], "next_hop": NEXT_HOP_IP["ipv4"]}, | |
110 | {"network": NETWORK["ipv6"], "next_hop": NEXT_HOP_IP["ipv6"]}, | |
111 | ] | |
112 | } | |
113 | } | |
114 | logger.info("Configuring static route on router %s", dut) | |
115 | result = create_static_routes(tgen, input_dict_static) | |
116 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
117 | tc_name, result | |
118 | ) | |
119 | ||
120 | input_dict_2 = { | |
121 | dut: { | |
122 | "bgp": { | |
123 | "address_family": { | |
124 | "ipv4": { | |
125 | "unicast": {"redistribute": [{"redist_type": "static"}]} | |
126 | }, | |
127 | "ipv6": { | |
128 | "unicast": {"redistribute": [{"redist_type": "static"}]} | |
129 | }, | |
130 | } | |
131 | } | |
132 | } | |
133 | } | |
134 | ||
135 | logger.info("Configuring redistribute static route on router %s", dut) | |
136 | result = create_router_bgp(tgen, topo, input_dict_2) | |
137 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
138 | tc_name, result | |
139 | ) | |
140 | ||
141 | elif test_type == "advertise_nw": | |
142 | input_dict_nw = { | |
143 | dut: { | |
144 | "bgp": { | |
145 | "address_family": { | |
146 | "ipv4": { | |
147 | "unicast": { | |
148 | "advertise_networks": [{"network": NETWORK["ipv4"]}] | |
149 | } | |
150 | }, | |
151 | "ipv6": { | |
152 | "unicast": { | |
153 | "advertise_networks": [{"network": NETWORK["ipv6"]}] | |
154 | } | |
155 | }, | |
156 | } | |
157 | } | |
158 | } | |
159 | } | |
160 | ||
161 | logger.info( | |
162 | "Advertising networks %s %s from router %s", | |
163 | NETWORK["ipv4"], | |
164 | NETWORK["ipv6"], | |
165 | dut, | |
166 | ) | |
167 | result = create_router_bgp(tgen, topo, input_dict_nw) | |
168 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
169 | tc_name, result | |
170 | ) | |
171 | ||
172 | ||
173 | @pytest.mark.parametrize("test_type", ["redist_static"]) | |
e82b531d | 174 | def test_ecmp_fast_convergence(request, test_type, tgen, topo): |
57ea1920 PG |
175 | """This test is to verify bgp fast-convergence cli functionality""" |
176 | ||
177 | tc_name = request.node.name | |
178 | write_test_header(tc_name) | |
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179 | |
180 | # Verifying RIB routes | |
181 | dut = "r3" | |
182 | protocol = "bgp" | |
183 | ||
184 | reset_config_on_routers(tgen) | |
185 | static_or_nw(tgen, topo, tc_name, test_type, "r2") | |
186 | ||
187 | for addr_type in ADDR_TYPES: | |
188 | input_dict = {"r3": {"static_routes": [{"network": NETWORK[addr_type]}]}} | |
189 | ||
190 | logger.info("Verifying %s routes on r3", addr_type) | |
191 | result = verify_rib( | |
192 | tgen, | |
193 | addr_type, | |
194 | dut, | |
195 | input_dict, | |
196 | protocol=protocol, | |
197 | ) | |
198 | assert result is True, "Testcase {} : Failed \n Error: {}".format( | |
199 | tc_name, result | |
200 | ) | |
201 | ||
202 | intf1 = topo["routers"]["r2"]["links"]["r3-link1"]["interface"] | |
203 | intf2 = topo["routers"]["r2"]["links"]["r3-link2"]["interface"] | |
204 | ||
205 | logger.info("Shutdown one of the link b/w r2 and r3") | |
206 | shutdown_bringup_interface(tgen, "r2", intf1, False) | |
207 | ||
208 | logger.info("Verify bgp neighbors are still up") | |
209 | result = verify_bgp_convergence(tgen, topo) | |
210 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
211 | ||
212 | logger.info("Shutdown another link b/w r2 and r3") | |
213 | shutdown_bringup_interface(tgen, "r2", intf2, False) | |
214 | ||
215 | logger.info("Wait for 10 sec and make sure bgp neighbors are still up") | |
216 | sleep(10) | |
217 | result = verify_bgp_convergence(tgen, topo) | |
218 | assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result) | |
219 | ||
220 | logger.info("No shut links b/w r2 and r3") | |
221 | shutdown_bringup_interface(tgen, "r2", intf1, True) | |
222 | shutdown_bringup_interface(tgen, "r2", intf2, True) | |
223 | ||
224 | logger.info("Enable bgp fast-convergence cli") | |
225 | raw_config = { | |
a53c08bc CH |
226 | "r2": { |
227 | "raw_config": [ | |
228 | "router bgp {}".format(topo["routers"]["r2"]["bgp"]["local_as"]), | |
229 | "bgp fast-convergence", | |
230 | ] | |
231 | } | |
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232 | } |
233 | result = apply_raw_config(tgen, raw_config) | |
234 | assert result is True, "Testcase {} : Failed Error: {}".format(tc_name, result) | |
235 | ||
236 | logger.info("Shutdown one link b/w r2 and r3") | |
237 | shutdown_bringup_interface(tgen, "r2", intf1, False) | |
238 | ||
239 | logger.info("Verify bgp neighbors goes down immediately") | |
240 | result = verify_bgp_convergence(tgen, topo, dut="r2", expected=False) | |
241 | assert result is not True, "Testcase {} : Failed \n Error: {}".format( | |
242 | tc_name, result | |
243 | ) | |
244 | ||
245 | logger.info("Shutdown second link b/w r2 and r3") | |
246 | shutdown_bringup_interface(tgen, "r2", intf2, False) | |
247 | ||
248 | logger.info("Verify bgp neighbors goes down immediately") | |
249 | result = verify_bgp_convergence(tgen, topo, dut="r2", expected=False) | |
250 | assert result is not True, "Testcase {} : Failed \n Error: {}".format( | |
251 | tc_name, result | |
252 | ) | |
253 | ||
254 | write_test_footer(tc_name) | |
255 | ||
256 | ||
257 | if __name__ == "__main__": | |
258 | args = ["-s"] + sys.argv[1:] | |
259 | sys.exit(pytest.main(args)) |