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513386b5 | 1 | #!/usr/bin/env python |
acddc0ed | 2 | # SPDX-License-Identifier: ISC |
513386b5 DA |
3 | |
4 | # | |
5 | # bgp_local_as_private_remove.py | |
6 | # Part of NetDEF Topology Tests | |
7 | # | |
8 | # Copyright (c) 2019 by | |
9 | # Network Device Education Foundation, Inc. ("NetDEF") | |
10 | # | |
513386b5 DA |
11 | |
12 | """ | |
13 | bgp_maximum_prefix_invalid_update.py: | |
14 | Test if unnecesarry UPDATE message like below: | |
15 | ||
16 | [Error] Error parsing NLRI | |
17 | %NOTIFICATION: sent to neighbor X.X.X.X 3/10 (UPDATE Message Error/Invalid Network Field) 0 bytes | |
18 | ||
19 | is not sent if maximum-prefix count is overflow. | |
20 | """ | |
21 | ||
22 | import os | |
23 | import sys | |
24 | import json | |
513386b5 | 25 | import pytest |
7591803d | 26 | import functools |
513386b5 DA |
27 | |
28 | CWD = os.path.dirname(os.path.realpath(__file__)) | |
787e7624 | 29 | sys.path.append(os.path.join(CWD, "../")) |
513386b5 DA |
30 | |
31 | # pylint: disable=C0413 | |
7591803d | 32 | from lib import topotest |
513386b5 | 33 | from lib.topogen import Topogen, TopoRouter, get_topogen |
513386b5 | 34 | |
bf3a0a9a DS |
35 | pytestmark = [pytest.mark.bgpd] |
36 | ||
787e7624 | 37 | |
e82b531d CH |
38 | def build_topo(tgen): |
39 | for routern in range(1, 3): | |
40 | tgen.add_router("r{}".format(routern)) | |
513386b5 | 41 | |
e82b531d CH |
42 | switch = tgen.add_switch("s1") |
43 | switch.add_link(tgen.gears["r1"]) | |
44 | switch.add_link(tgen.gears["r2"]) | |
513386b5 | 45 | |
513386b5 DA |
46 | |
47 | def setup_module(mod): | |
e82b531d | 48 | tgen = Topogen(build_topo, mod.__name__) |
513386b5 DA |
49 | tgen.start_topology() |
50 | ||
51 | router_list = tgen.routers() | |
52 | ||
e5f0ed14 | 53 | for i, (rname, router) in enumerate(router_list.items(), 1): |
513386b5 | 54 | router.load_config( |
787e7624 | 55 | TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) |
513386b5 DA |
56 | ) |
57 | router.load_config( | |
787e7624 | 58 | TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) |
513386b5 DA |
59 | ) |
60 | ||
61 | tgen.start_router() | |
62 | ||
787e7624 | 63 | |
513386b5 DA |
64 | def teardown_module(mod): |
65 | tgen = get_topogen() | |
66 | tgen.stop_topology() | |
67 | ||
787e7624 | 68 | |
513386b5 DA |
69 | def test_bgp_maximum_prefix_invalid(): |
70 | tgen = get_topogen() | |
71 | ||
72 | if tgen.routers_have_failure(): | |
73 | pytest.skip(tgen.errors) | |
74 | ||
7591803d | 75 | r2 = tgen.gears["r2"] |
513386b5 | 76 | |
32655aa2 | 77 | def _bgp_parsing_nlri(): |
7591803d DA |
78 | output = json.loads(r2.vtysh_cmd("show ip bgp neighbor 192.168.255.1 json")) |
79 | expected = { | |
80 | "192.168.255.1": { | |
32655aa2 DA |
81 | "lastNotificationReason": "Cease/Maximum Number of Prefixes Reached", |
82 | "lastResetDueTo": "BGP Notification send", | |
7591803d DA |
83 | } |
84 | } | |
85 | return topotest.json_cmp(output, expected) | |
86 | ||
32655aa2 | 87 | test_func = functools.partial(_bgp_parsing_nlri) |
7591803d | 88 | _, result = topotest.run_and_expect(test_func, None, count=30, wait=0.5) |
32655aa2 | 89 | assert result is None, "Didn't send NOTIFICATION when hitting maximum-prefix" |
513386b5 | 90 | |
513386b5 | 91 | |
787e7624 | 92 | if __name__ == "__main__": |
513386b5 DA |
93 | args = ["-s"] + sys.argv[1:] |
94 | sys.exit(pytest.main(args)) |