diff options
Diffstat (limited to 'tests/topotests/bgp_gr_restart_retain_routes')
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/r1/frr.conf (renamed from tests/topotests/bgp_gr_restart_retain_routes/r1/bgpd.conf) | 7 | ||||
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/r1/zebra.conf | 7 | ||||
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/r2/frr.conf (renamed from tests/topotests/bgp_gr_restart_retain_routes/r2/bgpd.conf) | 5 | ||||
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/r2/zebra.conf | 5 | ||||
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/r3/frr.conf | 19 | ||||
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/r4/frr.conf | 13 | ||||
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_per_neighbor_restart_retain_routes.py | 108 | ||||
-rw-r--r-- | tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_restart_retain_routes.py | 19 |
8 files changed, 161 insertions, 22 deletions
diff --git a/tests/topotests/bgp_gr_restart_retain_routes/r1/bgpd.conf b/tests/topotests/bgp_gr_restart_retain_routes/r1/frr.conf index 50d1583..3d4d3a8 100644 --- a/tests/topotests/bgp_gr_restart_retain_routes/r1/bgpd.conf +++ b/tests/topotests/bgp_gr_restart_retain_routes/r1/frr.conf @@ -1,3 +1,10 @@ +! +interface lo + ip address 172.16.255.1/32 +! +interface r1-eth0 + ip address 192.168.255.1/24 +! router bgp 65001 no bgp ebgp-requires-policy bgp graceful-restart diff --git a/tests/topotests/bgp_gr_restart_retain_routes/r1/zebra.conf b/tests/topotests/bgp_gr_restart_retain_routes/r1/zebra.conf deleted file mode 100644 index e65bfb2..0000000 --- a/tests/topotests/bgp_gr_restart_retain_routes/r1/zebra.conf +++ /dev/null @@ -1,7 +0,0 @@ -! -interface lo - ip address 172.16.255.1/32 -! -interface r1-eth0 - ip address 192.168.255.1/24 -! diff --git a/tests/topotests/bgp_gr_restart_retain_routes/r2/bgpd.conf b/tests/topotests/bgp_gr_restart_retain_routes/r2/frr.conf index 97418ca..f5ba4ea 100644 --- a/tests/topotests/bgp_gr_restart_retain_routes/r2/bgpd.conf +++ b/tests/topotests/bgp_gr_restart_retain_routes/r2/frr.conf @@ -1,3 +1,8 @@ +no zebra nexthop kernel enable +! +interface r2-eth0 + ip address 192.168.255.2/24 +! router bgp 65002 no bgp ebgp-requires-policy bgp graceful-restart diff --git a/tests/topotests/bgp_gr_restart_retain_routes/r2/zebra.conf b/tests/topotests/bgp_gr_restart_retain_routes/r2/zebra.conf deleted file mode 100644 index 758d797..0000000 --- a/tests/topotests/bgp_gr_restart_retain_routes/r2/zebra.conf +++ /dev/null @@ -1,5 +0,0 @@ -no zebra nexthop kernel enable -! -interface r2-eth0 - ip address 192.168.255.2/24 -! diff --git a/tests/topotests/bgp_gr_restart_retain_routes/r3/frr.conf b/tests/topotests/bgp_gr_restart_retain_routes/r3/frr.conf new file mode 100644 index 0000000..1d84ec6 --- /dev/null +++ b/tests/topotests/bgp_gr_restart_retain_routes/r3/frr.conf @@ -0,0 +1,19 @@ +no zebra nexthop kernel enable +! +interface lo + ip address 172.16.255.3/32 +! +interface r3-eth0 + ip address 192.168.34.3/24 +! +router bgp 65003 + no bgp ebgp-requires-policy + bgp graceful-restart preserve-fw-state + neighbor 192.168.34.4 remote-as external + neighbor 192.168.34.4 timers 1 3 + neighbor 192.168.34.4 timers connect 1 + neighbor 192.168.34.4 graceful-restart + address-family ipv4 + redistribute connected + exit-address-family +! diff --git a/tests/topotests/bgp_gr_restart_retain_routes/r4/frr.conf b/tests/topotests/bgp_gr_restart_retain_routes/r4/frr.conf new file mode 100644 index 0000000..5890791 --- /dev/null +++ b/tests/topotests/bgp_gr_restart_retain_routes/r4/frr.conf @@ -0,0 +1,13 @@ +no zebra nexthop kernel enable +! +interface r4-eth0 + ip address 192.168.34.4/24 +! +router bgp 65004 + no bgp ebgp-requires-policy + bgp graceful-restart preserve-fw-state + neighbor 192.168.34.3 remote-as external + neighbor 192.168.34.3 timers 1 3 + neighbor 192.168.34.3 timers connect 1 + neighbor 192.168.34.3 graceful-restart +! diff --git a/tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_per_neighbor_restart_retain_routes.py b/tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_per_neighbor_restart_retain_routes.py new file mode 100644 index 0000000..2354c0c --- /dev/null +++ b/tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_per_neighbor_restart_retain_routes.py @@ -0,0 +1,108 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# +# Copyright (c) 2024 by +# Donatas Abraitis <donatas@opensourcerouting.org> +# + +""" +Test if routes are retained during BGP restarts using + Graceful Restart per-neighbor. +""" + +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, TopoRouter, get_topogen +from lib.common_config import step, stop_router + +pytestmark = [pytest.mark.bgpd] + + +def build_topo(tgen): + for routern in range(1, 5): + tgen.add_router("r{}".format(routern)) + + switch = tgen.add_switch("s1") + switch.add_link(tgen.gears["r3"]) + switch.add_link(tgen.gears["r4"]) + + +def setup_module(mod): + tgen = Topogen(build_topo, 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_gr_restart_retain_routes(): + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + r4 = tgen.gears["r4"] + + def _bgp_converge(): + output = json.loads(r4.vtysh_cmd("show bgp ipv4 neighbors 192.168.34.3 json")) + expected = { + "192.168.34.3": { + "bgpState": "Established", + "addressFamilyInfo": {"ipv4Unicast": {"acceptedPrefixCounter": 2}}, + } + } + return topotest.json_cmp(output, expected) + + def _bgp_check_bgp_retained_routes(): + output = json.loads(r4.vtysh_cmd("show bgp ipv4 unicast 172.16.255.3/32 json")) + expected = {"paths": [{"stale": True}]} + return topotest.json_cmp(output, expected) + + def _bgp_check_kernel_retained_routes(): + output = json.loads( + r4.cmd("ip -j route show 172.16.255.3/32 proto bgp dev r4-eth0") + ) + expected = [{"dst": "172.16.255.3", "gateway": "192.168.34.3", "metric": 20}] + return topotest.json_cmp(output, expected) + + step("Initial BGP converge") + test_func = functools.partial(_bgp_converge) + _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) + assert result is None, "Failed to see BGP convergence on R4" + + step("Restart R3") + stop_router(tgen, "r3") + + step("Check if routes (BGP) are retained at R4") + test_func = functools.partial(_bgp_check_bgp_retained_routes) + _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5) + assert result is None, "Failed to see BGP retained routes on R4" + + step("Check if routes (Kernel) are retained at R4") + assert ( + _bgp_check_kernel_retained_routes() is None + ), "Failed to retain BGP routes in kernel on R4" + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args)) diff --git a/tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_restart_retain_routes.py b/tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_restart_retain_routes.py index a820b4b..abf737f 100644 --- a/tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_restart_retain_routes.py +++ b/tests/topotests/bgp_gr_restart_retain_routes/test_bgp_gr_restart_retain_routes.py @@ -42,13 +42,8 @@ def setup_module(mod): router_list = tgen.routers() - for i, (rname, router) in enumerate(router_list.items(), 1): - router.load_config( - TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname)) - ) - router.load_config( - TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname)) - ) + for _, (rname, router) in enumerate(router_list.items(), 1): + router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname))) tgen.start_router() @@ -83,8 +78,10 @@ def test_bgp_gr_restart_retain_routes(): return topotest.json_cmp(output, expected) def _bgp_check_kernel_retained_routes(): - output = json.loads(r2.cmd("ip -j route show 172.16.255.1/32 proto bgp dev r2-eth0")) - expected = [{"dst":"172.16.255.1","gateway":"192.168.255.1","metric":20}] + output = json.loads( + r2.cmd("ip -j route show 172.16.255.1/32 proto bgp dev r2-eth0") + ) + expected = [{"dst": "172.16.255.1", "gateway": "192.168.255.1", "metric": 20}] return topotest.json_cmp(output, expected) step("Initial BGP converge") @@ -101,7 +98,9 @@ def test_bgp_gr_restart_retain_routes(): assert result is None, "Failed to see BGP retained routes on R2" step("Check if routes (Kernel) are retained at R2") - assert _bgp_check_kernel_retained_routes() is None, "Failed to retain BGP routes in kernel on R2" + assert ( + _bgp_check_kernel_retained_routes() is None + ), "Failed to retain BGP routes in kernel on R2" if __name__ == "__main__": |