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 Topogen
, get_topogen
44 from lib
.common_config
import (
50 reset_config_on_routers
,
51 shutdown_bringup_interface
,
55 from lib
.topolog
import logger
56 from lib
.topojson
import build_config_from_json
57 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 # This function initiates the topology build with Topogen...
82 json_file
= "{}/ibgp_ecmp_topo3.json".format(CWD
)
83 tgen
= Topogen(json_file
, mod
.__name
__)
87 # Starting topology, create tmp files which are loaded to routers
88 # to start daemons and then start routers
91 # Creating configuration from JSON
92 build_config_from_json(tgen
, topo
)
94 # Don't run this test if we have any failure.
95 if tgen
.routers_have_failure():
96 pytest
.skip(tgen
.errors
)
98 # Api call verify whether BGP is converged
99 ADDR_TYPES
= check_address_types()
101 BGP_CONVERGENCE
= verify_bgp_convergence(tgen
, topo
)
102 assert BGP_CONVERGENCE
is True, "setup_module :Failed \n Error:" " {}".format(
106 # STATIC_ROUTE = True
107 logger
.info("Running setup_module() done")
110 def teardown_module():
111 get_topogen().stop_topology()
114 def static_or_nw(tgen
, topo
, tc_name
, test_type
, dut
):
116 if test_type
== "redist_static":
117 input_dict_static
= {
120 {"network": NETWORK
["ipv4"], "next_hop": NEXT_HOP_IP
["ipv4"]},
121 {"network": NETWORK
["ipv6"], "next_hop": NEXT_HOP_IP
["ipv6"]},
125 logger
.info("Configuring static route on router %s", dut
)
126 result
= create_static_routes(tgen
, input_dict_static
)
127 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
136 "unicast": {"redistribute": [{"redist_type": "static"}]}
139 "unicast": {"redistribute": [{"redist_type": "static"}]}
146 logger
.info("Configuring redistribute static route on router %s", dut
)
147 result
= create_router_bgp(tgen
, topo
, input_dict_2
)
148 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
152 elif test_type
== "advertise_nw":
159 "advertise_networks": [{"network": NETWORK
["ipv4"]}]
164 "advertise_networks": [{"network": NETWORK
["ipv6"]}]
173 "Advertising networks %s %s from router %s",
178 result
= create_router_bgp(tgen
, topo
, input_dict_nw
)
179 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
184 @pytest.mark
.parametrize("test_type", ["redist_static"])
185 def test_ecmp_fast_convergence(request
, test_type
, tgen
, topo
):
186 """This test is to verify bgp fast-convergence cli functionality"""
188 tc_name
= request
.node
.name
189 write_test_header(tc_name
)
191 # Verifying RIB routes
195 reset_config_on_routers(tgen
)
196 static_or_nw(tgen
, topo
, tc_name
, test_type
, "r2")
198 for addr_type
in ADDR_TYPES
:
199 input_dict
= {"r3": {"static_routes": [{"network": NETWORK
[addr_type
]}]}}
201 logger
.info("Verifying %s routes on r3", addr_type
)
209 assert result
is True, "Testcase {} : Failed \n Error: {}".format(
213 intf1
= topo
["routers"]["r2"]["links"]["r3-link1"]["interface"]
214 intf2
= topo
["routers"]["r2"]["links"]["r3-link2"]["interface"]
216 logger
.info("Shutdown one of the link b/w r2 and r3")
217 shutdown_bringup_interface(tgen
, "r2", intf1
, False)
219 logger
.info("Verify bgp neighbors are still up")
220 result
= verify_bgp_convergence(tgen
, topo
)
221 assert result
is True, "Testcase {} : Failed \n Error: {}".format(tc_name
, result
)
223 logger
.info("Shutdown another link b/w r2 and r3")
224 shutdown_bringup_interface(tgen
, "r2", intf2
, False)
226 logger
.info("Wait for 10 sec and make sure bgp neighbors are still up")
228 result
= verify_bgp_convergence(tgen
, topo
)
229 assert result
is True, "Testcase {} : Failed \n Error: {}".format(tc_name
, result
)
231 logger
.info("No shut links b/w r2 and r3")
232 shutdown_bringup_interface(tgen
, "r2", intf1
, True)
233 shutdown_bringup_interface(tgen
, "r2", intf2
, True)
235 logger
.info("Ensure that the links are still up")
236 result
= verify_bgp_convergence(tgen
, topo
)
238 logger
.info("Enable bgp fast-convergence cli")
242 "router bgp {}".format(topo
["routers"]["r2"]["bgp"]["local_as"]),
243 "bgp fast-convergence",
247 result
= apply_raw_config(tgen
, raw_config
)
248 assert result
is True, "Testcase {} : Failed Error: {}".format(tc_name
, result
)
250 logger
.info("Ensure BGP has processed the cli")
251 r2
= tgen
.gears
["r2"]
252 output
= r2
.vtysh_cmd("show run")
253 verify
= re
.search(r
"fast-convergence", output
)
254 assert verify
is not None, "r2 does not have the fast convergence command yet"
256 logger
.info("Shutdown one link b/w r2 and r3")
257 shutdown_bringup_interface(tgen
, "r2", intf1
, 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, (
262 "Testcase {} : Failed \n "
263 "Expected: BGP should not be converged for {} \n "
264 "Found: {}".format(tc_name
, "r2", result
)
267 logger
.info("Shutdown second link b/w r2 and r3")
268 shutdown_bringup_interface(tgen
, "r2", intf2
, False)
270 logger
.info("Verify bgp neighbors goes down immediately")
271 result
= verify_bgp_convergence(tgen
, topo
, dut
="r2", expected
=False)
272 assert result
is not True, (
273 "Testcase {} : Failed \n "
274 "Expected: BGP should not be converged for {} \n "
275 "Found: {}".format(tc_name
, "r2", result
)
278 write_test_footer(tc_name
)
281 if __name__
== "__main__":
282 args
= ["-s"] + sys
.argv
[1:]
283 sys
.exit(pytest
.main(args
))