From 86532b3dc25e654d17a9e236a972278432b617ea Mon Sep 17 00:00:00 2001 From: Donatas Abraitis Date: Thu, 7 Nov 2024 13:17:12 +0200 Subject: [PATCH] tests: Check if routes with addpath are cleared if they are stale Signed-off-by: Donatas Abraitis (cherry picked from commit 444bdc4cc04908fbda08114fd2f845b3be088e01) --- .../bgp_addpath_graceful_restart/__init__.py | 0 .../bgp_addpath_graceful_restart/r1/frr.conf | 23 +++ .../bgp_addpath_graceful_restart/r2/frr.conf | 28 ++++ .../bgp_addpath_graceful_restart/r3/frr.conf | 13 ++ .../test_bgp_addpath_graceful_restart.py | 132 ++++++++++++++++++ 5 files changed, 196 insertions(+) create mode 100644 tests/topotests/bgp_addpath_graceful_restart/__init__.py create mode 100644 tests/topotests/bgp_addpath_graceful_restart/r1/frr.conf create mode 100644 tests/topotests/bgp_addpath_graceful_restart/r2/frr.conf create mode 100644 tests/topotests/bgp_addpath_graceful_restart/r3/frr.conf create mode 100644 tests/topotests/bgp_addpath_graceful_restart/test_bgp_addpath_graceful_restart.py diff --git a/tests/topotests/bgp_addpath_graceful_restart/__init__.py b/tests/topotests/bgp_addpath_graceful_restart/__init__.py new file mode 100644 index 0000000000..e69de29bb2 diff --git a/tests/topotests/bgp_addpath_graceful_restart/r1/frr.conf b/tests/topotests/bgp_addpath_graceful_restart/r1/frr.conf new file mode 100644 index 0000000000..0644cf63a8 --- /dev/null +++ b/tests/topotests/bgp_addpath_graceful_restart/r1/frr.conf @@ -0,0 +1,23 @@ +! +int r1-eth0 + ip address 192.168.1.1/24 +! +int r1-eth1 + ip address 192.168.2.1/24 +! +router bgp 65001 + no bgp ebgp-requires-policy + no bgp network import-check + neighbor 192.168.1.2 remote-as auto + neighbor 192.168.1.2 timers 1 3 + neighbor 192.168.1.2 timers connect 1 + neighbor 192.168.2.2 remote-as auto + neighbor 192.168.2.2 timers 1 3 + neighbor 192.168.2.2 timers connect 1 + neighbor r1-eth1 interface remote-as auto + neighbor r1-eth1 timers 1 3 + neighbor r1-eth1 timers connect 1 + address-family ipv4 unicast + network 10.0.0.1/32 + exit-address-family +! diff --git a/tests/topotests/bgp_addpath_graceful_restart/r2/frr.conf b/tests/topotests/bgp_addpath_graceful_restart/r2/frr.conf new file mode 100644 index 0000000000..ad236e0680 --- /dev/null +++ b/tests/topotests/bgp_addpath_graceful_restart/r2/frr.conf @@ -0,0 +1,28 @@ +! +int r2-eth0 + ip address 192.168.1.2/24 +! +int r2-eth1 + ip address 192.168.2.2/24 +! +int r2-eth2 + ip address 192.168.3.2/24 +! +router bgp 65002 + bgp graceful-restart + bgp graceful-restart preserve-fw-state + bgp graceful-restart restart-time 10 + no bgp ebgp-requires-policy + neighbor 192.168.1.1 remote-as auto + neighbor 192.168.1.1 timers 1 3 + neighbor 192.168.1.1 timers connect 1 + neighbor 192.168.2.1 remote-as auto + neighbor 192.168.2.1 timers 1 3 + neighbor 192.168.2.1 timers connect 1 + neighbor 192.168.3.3 remote-as auto + neighbor 192.168.3.3 timers 1 3 + neighbor 192.168.3.3 timers connect 1 + address-family ipv4 unicast + neighbor 192.168.3.3 addpath-tx-all-paths + exit-address-family +! diff --git a/tests/topotests/bgp_addpath_graceful_restart/r3/frr.conf b/tests/topotests/bgp_addpath_graceful_restart/r3/frr.conf new file mode 100644 index 0000000000..e864003f25 --- /dev/null +++ b/tests/topotests/bgp_addpath_graceful_restart/r3/frr.conf @@ -0,0 +1,13 @@ +! +int r3-eth0 + ip address 192.168.3.3/24 +! +router bgp 65003 + bgp graceful-restart + bgp graceful-restart preserve-fw-state + bgp graceful-restart restart-time 10 + no bgp ebgp-requires-policy + neighbor 192.168.3.2 remote-as auto + neighbor 192.168.3.2 timers 1 3 + neighbor 192.168.3.2 timers connect 1 +! diff --git a/tests/topotests/bgp_addpath_graceful_restart/test_bgp_addpath_graceful_restart.py b/tests/topotests/bgp_addpath_graceful_restart/test_bgp_addpath_graceful_restart.py new file mode 100644 index 0000000000..9088c44bdb --- /dev/null +++ b/tests/topotests/bgp_addpath_graceful_restart/test_bgp_addpath_graceful_restart.py @@ -0,0 +1,132 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# Copyright (c) 2024 by +# Donatas Abraitis +# + +import os +import sys +import json +import pytest +import functools + +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +from lib import topotest +from lib.topogen import Topogen, get_topogen +from lib.common_config import kill_router_daemons + +pytestmark = [pytest.mark.bgpd] + + +def setup_module(mod): + topodef = {"s1": ("r1", "r2"), "s2": ("r1", "r2"), "s3": ("r2", "r3")} + tgen = Topogen(topodef, mod.__name__) + tgen.start_topology() + + router_list = tgen.routers() + + for _, (rname, router) in enumerate(router_list.items(), 1): + router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname))) + + tgen.start_router() + + +def teardown_module(mod): + tgen = get_topogen() + tgen.stop_topology() + + +def test_bgp_addpath_graceful_restart(): + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + r2 = tgen.gears["r2"] + r3 = tgen.gears["r3"] + + def _bgp_converge(): + output = json.loads(r2.vtysh_cmd("show bgp ipv4 unicast summary json")) + expected = { + "peers": { + "192.168.1.1": { + "hostname": "r1", + "remoteAs": 65001, + "localAs": 65002, + "pfxRcd": 1, + "state": "Established", + }, + "192.168.2.1": { + "hostname": "r1", + "remoteAs": 65001, + "localAs": 65002, + "pfxRcd": 1, + "state": "Established", + }, + "192.168.3.3": { + "hostname": "r3", + "remoteAs": 65003, + "localAs": 65002, + "pfxSnt": 2, + "state": "Established", + }, + } + } + return topotest.json_cmp(output, expected) + + test_func = functools.partial( + _bgp_converge, + ) + _, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + assert result is None, "Initial peering failed" + + kill_router_daemons(tgen, "r2", ["bgpd"]) + + def _bgp_check_stale_routes(): + output = json.loads(r3.vtysh_cmd("show bgp ipv4 unicast json")) + expected = { + "routes": { + "10.0.0.1/32": [ + { + "stale": True, + "valid": True, + }, + { + "stale": True, + "valid": True, + "multipath": True, + }, + ] + } + } + return topotest.json_cmp(output, expected) + + test_func = functools.partial( + _bgp_check_stale_routes, + ) + _, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + assert result is None, "Can't see stale routes" + + def _bgp_check_stale_routes_cleared(): + output = json.loads(r3.vtysh_cmd("show bgp ipv4 unicast json")) + expected = { + "routes": { + "10.0.0.1/32": None, + } + } + return topotest.json_cmp(output, expected) + + test_func = functools.partial( + _bgp_check_stale_routes_cleared, + ) + _, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + assert result is None, "Can't see stale routes" + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) -- 2.39.5