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git.proxmox.com Git - mirror_frr.git/blob - tests/topotests/bfd_topo1/test_bfd_topo1.py
5 # Part of NetDEF Topology Tests
7 # Copyright (c) 2018 by
8 # Network Device Education Foundation, Inc. ("NetDEF")
10 # Permission to use, copy, modify, and/or distribute this software
11 # for any purpose with or without fee is hereby granted, provided
12 # that the above copyright notice and this permission notice appear
15 # THE SOFTWARE IS PROVIDED "AS IS" AND NETDEF DISCLAIMS ALL WARRANTIES
16 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
17 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NETDEF BE LIABLE FOR
18 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
19 # DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
20 # WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
21 # ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
26 test_bfd_topo1.py: Test the FRR BFD daemon.
32 from functools
import partial
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
, "../"))
39 # pylint: disable=C0413
40 # Import topogen and topotest helpers
41 from lib
import topotest
42 from lib
.topogen
import Topogen
, TopoRouter
, get_topogen
43 from lib
.topolog
import logger
45 pytestmark
= [pytest
.mark
.bfdd
, pytest
.mark
.bgpd
]
48 def setup_module(mod
):
49 "Sets up the pytest environment"
55 tgen
= Topogen(topodef
, mod
.__name
__)
58 router_list
= tgen
.routers()
59 for rname
, router
in router_list
.items():
61 TopoRouter
.RD_ZEBRA
, os
.path
.join(CWD
, "{}/zebra.conf".format(rname
))
64 TopoRouter
.RD_BFD
, os
.path
.join(CWD
, "{}/bfdd.conf".format(rname
))
67 TopoRouter
.RD_BGP
, os
.path
.join(CWD
, "{}/bgpd.conf".format(rname
))
70 # Initialize all routers.
73 # Verify that we are using the proper version and that the BFD
75 for router
in router_list
.values():
77 if router
.has_version("<", "5.1"):
78 tgen
.set_error("Unsupported FRR version")
82 def teardown_module(_mod
):
83 "Teardown the pytest environment"
88 def test_bfd_connection():
89 "Assert that the BFD peers can find themselves."
91 if tgen
.routers_have_failure():
92 pytest
.skip(tgen
.errors
)
94 logger
.info("waiting for bfd peers to go up")
96 for router
in tgen
.routers().values():
97 json_file
= "{}/{}/peers.json".format(CWD
, router
.name
)
98 expected
= json
.loads(open(json_file
).read())
101 topotest
.router_json_cmp
, router
, "show bfd peers json", expected
103 _
, result
= topotest
.run_and_expect(test_func
, None, count
=8, wait
=0.5)
104 assertmsg
= '"{}" JSON output mismatches'.format(router
.name
)
105 assert result
is None, assertmsg
108 def test_bgp_convergence():
109 "Assert that BGP is converging."
111 if tgen
.routers_have_failure():
112 pytest
.skip(tgen
.errors
)
114 logger
.info("waiting for bgp peers to go up")
116 for router
in tgen
.routers().values():
117 ref_file
= "{}/{}/bgp_summary.json".format(CWD
, router
.name
)
118 expected
= json
.loads(open(ref_file
).read())
120 topotest
.router_json_cmp
, router
, "show ip bgp summary json", expected
122 _
, res
= topotest
.run_and_expect(test_func
, None, count
=125, wait
=1.0)
123 assertmsg
= "{}: bgp did not converge".format(router
.name
)
124 assert res
is None, assertmsg
127 def test_bgp_fast_convergence():
128 "Assert that BGP is converging before setting a link down."
130 if tgen
.routers_have_failure():
131 pytest
.skip(tgen
.errors
)
133 logger
.info("waiting for bgp peers converge")
135 for router
in tgen
.routers().values():
136 ref_file
= "{}/{}/bgp_prefixes.json".format(CWD
, router
.name
)
137 expected
= json
.loads(open(ref_file
).read())
139 topotest
.router_json_cmp
, router
, "show ip bgp json", expected
141 _
, res
= topotest
.run_and_expect(test_func
, None, count
=40, wait
=0.5)
142 assertmsg
= "{}: bgp did not converge".format(router
.name
)
143 assert res
is None, assertmsg
146 def test_bfd_fast_convergence():
148 Assert that BFD notices the link down after simulating network
152 if tgen
.routers_have_failure():
153 pytest
.skip(tgen
.errors
)
155 # Disable r1-eth0 link.
156 tgen
.gears
["r1"].link_enable("r1-eth0", enabled
=False)
158 # Wait the minimum time we can before checking that BGP/BFD
160 logger
.info("waiting for BFD converge")
162 # Check that BGP converged quickly.
163 for router
in tgen
.routers().values():
164 json_file
= "{}/{}/peers.json".format(CWD
, router
.name
)
165 expected
= json
.loads(open(json_file
).read())
167 # Load the same file as previous test, but expect R1 to be down.
168 if router
.name
== "r1":
169 for peer
in expected
:
170 if peer
["peer"] == "192.168.0.2":
171 peer
["status"] = "down"
173 for peer
in expected
:
174 if peer
["peer"] == "192.168.0.1":
175 peer
["status"] = "down"
178 topotest
.router_json_cmp
, router
, "show bfd peers json", expected
180 _
, res
= topotest
.run_and_expect(test_func
, None, count
=20, wait
=0.5)
181 assertmsg
= '"{}" JSON output mismatches'.format(router
.name
)
182 assert res
is None, assertmsg
185 def test_bgp_fast_reconvergence():
186 "Assert that BGP is converging after setting a link down."
188 if tgen
.routers_have_failure():
189 pytest
.skip(tgen
.errors
)
191 logger
.info("waiting for BGP re convergence")
193 # Check that BGP converged quickly.
194 for router
in tgen
.routers().values():
195 ref_file
= "{}/{}/bgp_prefixes.json".format(CWD
, router
.name
)
196 expected
= json
.loads(open(ref_file
).read())
198 # Load the same file as previous test, but set networks to None
200 if router
.name
== "r1":
201 expected
["routes"]["10.254.254.2/32"] = None
202 expected
["routes"]["10.254.254.3/32"] = None
203 expected
["routes"]["10.254.254.4/32"] = None
205 expected
["routes"]["10.254.254.1/32"] = None
208 topotest
.router_json_cmp
, router
, "show ip bgp json", expected
210 _
, res
= topotest
.run_and_expect(test_func
, None, count
=3, wait
=1)
211 assertmsg
= "{}: bgp did not converge".format(router
.name
)
212 assert res
is None, assertmsg
215 def test_memory_leak():
216 "Run the memory leak test and report results."
218 if not tgen
.is_memleak_enabled():
219 pytest
.skip("Memory leak test/report is disabled")
221 tgen
.report_memory_leaks()
224 if __name__
== "__main__":
225 args
= ["-s"] + sys
.argv
[1:]
226 sys
.exit(pytest
.main(args
))