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-rw-r--r--tests/topotests/bgp_addpath_llgr/__init__.py0
-rw-r--r--tests/topotests/bgp_addpath_llgr/r1/frr.conf23
-rw-r--r--tests/topotests/bgp_addpath_llgr/r2/frr.conf29
-rw-r--r--tests/topotests/bgp_addpath_llgr/r3/frr.conf14
-rw-r--r--tests/topotests/bgp_addpath_llgr/test_bgp_addpath_llgr.py131
5 files changed, 197 insertions, 0 deletions
diff --git a/tests/topotests/bgp_addpath_llgr/__init__.py b/tests/topotests/bgp_addpath_llgr/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tests/topotests/bgp_addpath_llgr/__init__.py
diff --git a/tests/topotests/bgp_addpath_llgr/r1/frr.conf b/tests/topotests/bgp_addpath_llgr/r1/frr.conf
new file mode 100644
index 00000000..0644cf63
--- /dev/null
+++ b/tests/topotests/bgp_addpath_llgr/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_llgr/r2/frr.conf b/tests/topotests/bgp_addpath_llgr/r2/frr.conf
new file mode 100644
index 00000000..7f6fff0f
--- /dev/null
+++ b/tests/topotests/bgp_addpath_llgr/r2/frr.conf
@@ -0,0 +1,29 @@
+!
+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 0
+ bgp long-lived-graceful-restart stale-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_llgr/r3/frr.conf b/tests/topotests/bgp_addpath_llgr/r3/frr.conf
new file mode 100644
index 00000000..f36492d7
--- /dev/null
+++ b/tests/topotests/bgp_addpath_llgr/r3/frr.conf
@@ -0,0 +1,14 @@
+!
+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 0
+ bgp long-lived-graceful-restart stale-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_llgr/test_bgp_addpath_llgr.py b/tests/topotests/bgp_addpath_llgr/test_bgp_addpath_llgr.py
new file mode 100644
index 00000000..fa031430
--- /dev/null
+++ b/tests/topotests/bgp_addpath_llgr/test_bgp_addpath_llgr.py
@@ -0,0 +1,131 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: ISC
+
+# Copyright (c) 2024 by
+# Donatas Abraitis <donatas@opensourcerouting.org>
+#
+
+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_llgr():
+ 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_llgr_routes():
+ output = json.loads(r3.vtysh_cmd("show bgp ipv4 unicast 10.0.0.1/32 json"))
+ expected = {
+ "paths": [
+ {
+ "stale": True,
+ "valid": True,
+ "community": {"string": "llgr-stale", "list": ["llgrStale"]},
+ },
+ {
+ "stale": True,
+ "valid": True,
+ "community": {"string": "llgr-stale", "list": ["llgrStale"]},
+ },
+ ]
+ }
+ return topotest.json_cmp(output, expected)
+
+ test_func = functools.partial(
+ _bgp_check_stale_llgr_routes,
+ )
+ _, result = topotest.run_and_expect(test_func, None, count=30, wait=1)
+ assert result is None, "Can't see stale LLGR 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))