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03eb10e6 | 1 | #!/usr/bin/env python |
acddc0ed | 2 | # SPDX-License-Identifier: ISC |
03eb10e6 DA |
3 | |
4 | # | |
5 | # test_bgp_as_wide_bgp_identifier.py | |
6 | # Part of NetDEF Topology Tests | |
7 | # | |
8 | # Copyright (c) 2020 by | |
9 | # Donatas Abraitis <donatas.abraitis@gmail.com> | |
10 | # | |
03eb10e6 DA |
11 | |
12 | """ | |
13 | rfc6286: Autonomous-System-Wide Unique BGP Identifier for BGP-4 | |
14 | Test if 'Bad BGP Identifier' notification is sent only to | |
15 | internal peers (autonomous-system-wide). eBGP peers are not | |
16 | affected and should work. | |
17 | """ | |
18 | ||
19 | import os | |
20 | import sys | |
21 | import json | |
03eb10e6 DA |
22 | import pytest |
23 | import functools | |
24 | ||
25 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
787e7624 | 26 | sys.path.append(os.path.join(CWD, "../")) |
03eb10e6 DA |
27 | |
28 | # pylint: disable=C0413 | |
29 | from lib import topotest | |
30 | from lib.topogen import Topogen, TopoRouter, get_topogen | |
03eb10e6 | 31 | |
5ad1fd54 DS |
32 | pytestmark = [pytest.mark.bgpd] |
33 | ||
787e7624 | 34 | |
e82b531d CH |
35 | def build_topo(tgen): |
36 | for routern in range(1, 4): | |
37 | tgen.add_router("r{}".format(routern)) | |
03eb10e6 | 38 | |
e82b531d CH |
39 | switch = tgen.add_switch("s1") |
40 | switch.add_link(tgen.gears["r1"]) | |
41 | switch.add_link(tgen.gears["r2"]) | |
42 | switch.add_link(tgen.gears["r3"]) | |
03eb10e6 | 43 | |
03eb10e6 DA |
44 | |
45 | def setup_module(mod): | |
e82b531d | 46 | tgen = Topogen(build_topo, mod.__name__) |
03eb10e6 DA |
47 | tgen.start_topology() |
48 | ||
49 | router_list = tgen.routers() | |
50 | ||
e5f0ed14 | 51 | for i, (rname, router) in enumerate(router_list.items(), 1): |
03eb10e6 | 52 | router.load_config( |
787e7624 | 53 | TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) |
03eb10e6 DA |
54 | ) |
55 | router.load_config( | |
787e7624 | 56 | TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) |
03eb10e6 DA |
57 | ) |
58 | ||
59 | tgen.start_router() | |
60 | ||
787e7624 | 61 | |
03eb10e6 DA |
62 | def teardown_module(mod): |
63 | tgen = get_topogen() | |
64 | tgen.stop_topology() | |
65 | ||
787e7624 | 66 | |
03eb10e6 DA |
67 | def test_bgp_as_wide_bgp_identifier(): |
68 | tgen = get_topogen() | |
69 | ||
70 | if tgen.routers_have_failure(): | |
71 | pytest.skip(tgen.errors) | |
72 | ||
73 | def _bgp_converge(router): | |
74 | output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json")) | |
787e7624 | 75 | expected = {"192.168.255.1": {"bgpState": "Established"}} |
03eb10e6 DA |
76 | return topotest.json_cmp(output, expected) |
77 | ||
78 | def _bgp_failed(router): | |
79 | output = json.loads(router.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json")) | |
80 | expected = { | |
787e7624 | 81 | "192.168.255.1": { |
82 | "lastNotificationReason": "OPEN Message Error/Bad BGP Identifier" | |
03eb10e6 DA |
83 | } |
84 | } | |
85 | return topotest.json_cmp(output, expected) | |
86 | ||
787e7624 | 87 | test_func = functools.partial(_bgp_converge, tgen.gears["r1"]) |
9ccb078d | 88 | success, result = topotest.run_and_expect(test_func, None, count=260, wait=0.5) |
03eb10e6 | 89 | |
787e7624 | 90 | assert result is None, 'Failed to converge: "{}"'.format(tgen.gears["r1"]) |
03eb10e6 | 91 | |
787e7624 | 92 | test_func = functools.partial(_bgp_failed, tgen.gears["r3"]) |
9ccb078d | 93 | success, result = topotest.run_and_expect(test_func, None, count=260, wait=0.5) |
03eb10e6 | 94 | |
787e7624 | 95 | assert result is None, 'Bad BGP Identifier notification not sent: "{}"'.format( |
96 | tgen.gears["r3"] | |
97 | ) | |
98 | ||
03eb10e6 | 99 | |
787e7624 | 100 | if __name__ == "__main__": |
03eb10e6 DA |
101 | args = ["-s"] + sys.argv[1:] |
102 | sys.exit(pytest.main(args)) |