--- /dev/null
+router bgp 65001
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ bgp route-reflector allow-outbound-policy
+ neighbor 10.0.0.2 remote-as internal
+ neighbor 10.0.0.2 update-source lo
+ neighbor 10.0.0.2 timers 1 3
+ neighbor 10.0.0.2 timers connect 1
+ neighbor 10.0.0.2 route-reflector-client
+ neighbor 10.0.0.3 remote-as internal
+ neighbor 10.0.0.3 update-source lo
+ neighbor 10.0.0.3 timers 1 3
+ neighbor 10.0.0.3 timers connect 1
+ neighbor 10.0.0.3 route-reflector-client
+ neighbor 10.0.0.4 remote-as internal
+ neighbor 10.0.0.4 update-source lo
+ neighbor 10.0.0.4 timers 1 3
+ neighbor 10.0.0.4 timers connect 1
+ neighbor 10.0.0.4 route-reflector-client
+ address-family ipv4
+ neighbor 10.0.0.4 route-map set-nexthop out
+ exit-address-family
+!
+route-map set-nexthop permit 10
+ set ip next-hop peer-address
+exit
+!
--- /dev/null
+#!/usr/bin/env python
+# SPDX-License-Identifier: ISC
+
+#
+# Copyright (c) 2024, Palo Alto Networks, Inc.
+# Enke Chen <enchen@paloaltonetworks.com>
+#
+
+"""
+r1, r2, and r3 are directly connectd to each other.
+r4 is only connected to r1 directly.
+
+r1 is the route reflector.
+r1 sets the nexthop to itself when advertising routes to r4.
+
+r2 sources 10.0.2.2/32 with agigp-metric 2.
+
+Results:
+
+r1, r2 and r3 should have aigp-meric 2.
+r4 should have aigp-metric 12, i.e., aigp + nexthop-metric.
+"""
+
+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
+
+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["r1"])
+ switch.add_link(tgen.gears["r2"])
+
+ switch = tgen.add_switch("s2")
+ switch.add_link(tgen.gears["r1"])
+ switch.add_link(tgen.gears["r3"])
+
+ switch = tgen.add_switch("s3")
+ switch.add_link(tgen.gears["r1"])
+ switch.add_link(tgen.gears["r4"])
+
+ switch = tgen.add_switch("s4")
+ switch.add_link(tgen.gears["r2"])
+ switch.add_link(tgen.gears["r3"])
+
+
+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_config(
+ TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
+ )
+ router.load_config(
+ TopoRouter.RD_OSPF, os.path.join(CWD, "{}/ospfd.conf".format(rname))
+ )
+ router.load_config(
+ TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
+ )
+
+ tgen.start_router()
+
+
+def teardown_module(mod):
+ tgen = get_topogen()
+ tgen.stop_topology()
+
+
+def test_bgp_aigp_rr():
+ tgen = get_topogen()
+
+ if tgen.routers_have_failure():
+ pytest.skip(tgen.errors)
+
+ r1 = tgen.gears["r1"]
+ r2 = tgen.gears["r2"]
+ r3 = tgen.gears["r3"]
+ r4 = tgen.gears["r4"]
+
+ def _bgp_check_aigp_metric(router, prefix, aigp):
+ output = json.loads(
+ router.vtysh_cmd("show bgp ipv4 unicast {} json".format(prefix))
+ )
+ expected = {"paths": [{"aigpMetric": aigp, "valid": True}]}
+ return topotest.json_cmp(output, expected)
+
+
+ # r2, 10.0.2.2/32 with aigp-metric 2
+ test_func = functools.partial(_bgp_check_aigp_metric, r2, "10.0.2.2/32", 2)
+ _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
+ assert result is None, "aigp-metric for 10.0.2.2/32 is not 2"
+
+ # r1, 10.0.2.2/32 with aigp-metric 2
+ test_func = functools.partial(_bgp_check_aigp_metric, r1, "10.0.2.2/32", 2)
+ _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
+ assert result is None, "aigp-metric for 10.0.2.2/32 is not 2"
+
+ # r3, 10.0.2.2/32 with aigp-metric 2
+ test_func = functools.partial(_bgp_check_aigp_metric, r3, "10.0.2.2/32", 2)
+ _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
+ assert result is None, "aigp-metric for 10.0.2.2/32 is not 2"
+
+ # r4, 10.0.2.2/32 with aigp-metric 12: aigp + nexthop-metric
+ test_func = functools.partial(_bgp_check_aigp_metric, r4, "10.0.2.2/32", 12)
+ _, result = topotest.run_and_expect(test_func, None, count=60, wait=1)
+ assert result is None, "aigp-metric for 10.0.2.2/32 is not 12"
+
+
+if __name__ == "__main__":
+ args = ["-s"] + sys.argv[1:]
+ sys.exit(pytest.main(args))
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