4 # Copyright (c) 2019 by VMware, Inc. ("VMware")
5 # Used Copyright (c) 2018 by Network Device Education Foundation, Inc.
6 # ("NetDEF") in this file.
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
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
25 Following tests are covered to test ecmp functionality on iBGP.
26 1. Verify bgp fast-convergence functionality
33 from time
import sleep
35 # Save the Current Working Directory to find configuration files.
36 CWD
= os
.path
.dirname(os
.path
.realpath(__file__
))
37 sys
.path
.append(os
.path
.join(CWD
, "../"))
38 sys
.path
.append(os
.path
.join(CWD
, "../../"))
40 # pylint: disable=C0413
41 # Import topogen and topotest helpers
42 from lib
.topogen
import get_topogen
43 from lib
import topojson
45 from lib
.common_config
import (
51 reset_config_on_routers
,
52 shutdown_bringup_interface
,
55 from lib
.topolog
import logger
56 from lib
.bgp
import create_router_bgp
, verify_bgp_convergence
59 pytestmark
= [pytest
.mark
.bgpd
, pytest
.mark
.staticd
]
63 NEXT_HOPS
= {"ipv4": [], "ipv6": []}
64 NETWORK
= {"ipv4": "192.168.1.10/32", "ipv6": "fd00:0:0:1::10/128"}
65 NEXT_HOP_IP
= {"ipv4": "10.0.0.1", "ipv6": "fd00::1"}
66 BGP_CONVERGENCE
= False
69 def setup_module(mod
):
71 Sets up the pytest environment.
77 testsuite_run_time
= time
.asctime(time
.localtime(time
.time()))
78 logger
.info("Testsuite start time: {}".format(testsuite_run_time
))
81 tgen
= topojson
.setup_module_from_json(mod
.__file
__)
84 # Don't run this test if we have any failure.
85 if tgen
.routers_have_failure():
86 pytest
.skip(tgen
.errors
)
88 # Api call verify whether BGP is converged
89 ADDR_TYPES
= check_address_types()
91 BGP_CONVERGENCE
= verify_bgp_convergence(tgen
, topo
)
92 assert BGP_CONVERGENCE
is True, "setup_module :Failed \n Error:" " {}".format(
97 logger
.info("Running setup_module() done")
100 def teardown_module():
101 get_topogen().stop_topology()
104 def static_or_nw(tgen
, topo
, tc_name
, test_type
, dut
):
106 if test_type
== "redist_static":
107 input_dict_static
= {
110 {"network": NETWORK
["ipv4"], "next_hop": NEXT_HOP_IP
["ipv4"]},
111 {"network": NETWORK
["ipv6"], "next_hop": NEXT_HOP_IP
["ipv6"]},
115 logger
.info("Configuring static route on router %s", dut
)
116 result
= create_static_routes(tgen
, input_dict_static
)
117 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
126 "unicast": {"redistribute": [{"redist_type": "static"}]}
129 "unicast": {"redistribute": [{"redist_type": "static"}]}
136 logger
.info("Configuring redistribute static route on router %s", dut
)
137 result
= create_router_bgp(tgen
, topo
, input_dict_2
)
138 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
142 elif test_type
== "advertise_nw":
149 "advertise_networks": [{"network": NETWORK
["ipv4"]}]
154 "advertise_networks": [{"network": NETWORK
["ipv6"]}]
163 "Advertising networks %s %s from router %s",
168 result
= create_router_bgp(tgen
, topo
, input_dict_nw
)
169 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
174 @pytest.mark
.parametrize("test_type", ["redist_static"])
175 def test_ecmp_fast_convergence(request
, test_type
, tgen
, topo
):
176 """This test is to verify bgp fast-convergence cli functionality"""
178 tc_name
= request
.node
.name
179 write_test_header(tc_name
)
181 # Verifying RIB routes
185 reset_config_on_routers(tgen
)
186 static_or_nw(tgen
, topo
, tc_name
, test_type
, "r2")
188 for addr_type
in ADDR_TYPES
:
189 input_dict
= {"r3": {"static_routes": [{"network": NETWORK
[addr_type
]}]}}
191 logger
.info("Verifying %s routes on r3", addr_type
)
199 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
203 intf1
= topo
["routers"]["r2"]["links"]["r3-link1"]["interface"]
204 intf2
= topo
["routers"]["r2"]["links"]["r3-link2"]["interface"]
206 logger
.info("Shutdown one of the link b/w r2 and r3")
207 shutdown_bringup_interface(tgen
, "r2", intf1
, False)
209 logger
.info("Verify bgp neighbors are still up")
210 result
= verify_bgp_convergence(tgen
, topo
)
211 assert result
is True, "Testcase {} : Failed \n Error: {}".format(tc_name
, result
)
213 logger
.info("Shutdown another link b/w r2 and r3")
214 shutdown_bringup_interface(tgen
, "r2", intf2
, False)
216 logger
.info("Wait for 10 sec and make sure bgp neighbors are still up")
218 result
= verify_bgp_convergence(tgen
, topo
)
219 assert result
is True, "Testcase {} : Failed \n Error: {}".format(tc_name
, result
)
221 logger
.info("No shut links b/w r2 and r3")
222 shutdown_bringup_interface(tgen
, "r2", intf1
, True)
223 shutdown_bringup_interface(tgen
, "r2", intf2
, True)
225 logger
.info("Ensure that the links are still up")
226 result
= verify_bgp_convergence(tgen
, topo
)
228 logger
.info("Enable bgp fast-convergence cli")
232 "router bgp {}".format(topo
["routers"]["r2"]["bgp"]["local_as"]),
233 "bgp fast-convergence",
237 result
= apply_raw_config(tgen
, raw_config
)
238 assert result
is True, "Testcase {} : Failed Error: {}".format(tc_name
, result
)
240 logger
.info("Ensure BGP has processed the cli")
241 r2
= tgen
.gears
["r2"]
242 output
= r2
.vtysh_cmd("show run")
243 verify
= re
.search(r
"fast-convergence", output
)
244 assert verify
is not None, (
245 "r2 does not have the fast convergence command yet")
247 logger
.info("Shutdown one link b/w r2 and r3")
248 shutdown_bringup_interface(tgen
, "r2", intf1
, False)
250 logger
.info("Verify bgp neighbors goes down immediately")
251 result
= verify_bgp_convergence(tgen
, topo
, dut
="r2", expected
=False)
252 assert result
is not True, "Testcase {} : Failed \n Error: {}".format(
256 logger
.info("Shutdown second link b/w r2 and r3")
257 shutdown_bringup_interface(tgen
, "r2", intf2
, False)
259 logger
.info("Verify bgp neighbors goes down immediately")
260 result
= verify_bgp_convergence(tgen
, topo
, dut
="r2", expected
=False)
261 assert result
is not True, "Testcase {} : Failed \n Error: {}".format(
265 write_test_footer(tc_name
)
268 if __name__
== "__main__":
269 args
= ["-s"] + sys
.argv
[1:]
270 sys
.exit(pytest
.main(args
))