topotato: bgp_oad

test_bgp_oad.py

@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2023 Nathan Mangar
+
+"""
+Test if local-preference is passed between different EBGP peers when
+EBGP-OAD is configured.
+"""
+
+__topotests_replaces__ = {
+    "bgp_oad/": "ba67eb6bd090c78bc9eb0b4bb11ecc0c30661c1a",
+}
+
+# pylint: disable=invalid-name, missing-class-docstring, missing-function-docstring, line-too-long, consider-using-f-string, wildcard-import, unused-wildcard-import, f-string-without-interpolation, too-few-public-methods, unused-argument, attribute-defined-outside-init
+from topotato.v1 import *
+
+
+@topology_fixture()
+def topology(topo):
+    """
+    [ r1 ]
+      |
+    [ r2 ]
+      |
+    [ r3 ]
+
+    """
+
+
+class Configs(FRRConfigs):
+    zebra = """
+    #% extends "boilerplate.conf"
+    ## nothing needed
+    """
+
+    bgpd = """
+    #% block main
+    #%   if router.name == 'r1'
+    router bgp 65001
+     no bgp ebgp-requires-policy
+     neighbor {{ routers.r2.ifaces[0].ip4[0].ip }} remote-as external
+     neighbor {{ routers.r2.ifaces[0].ip4[0].ip }} timers 1 3
+     neighbor {{ routers.r2.ifaces[0].ip4[0].ip }} timers connect 1
+     neighbor {{ routers.r2.ifaces[0].ip4[0].ip }} oad
+    !
+    #%   elif router.name == 'r2'
+    router bgp 65002
+     no bgp ebgp-requires-policy
+     neighbor {{ routers.r1.ifaces[0].ip4[0].ip }} remote-as external
+     neighbor {{ routers.r1.ifaces[0].ip4[0].ip }} timers 1 3
+     neighbor {{ routers.r1.ifaces[0].ip4[0].ip }} timers connect 1
+     neighbor {{ routers.r1.ifaces[0].ip4[0].ip }} oad
+     neighbor {{ routers.r3.ifaces[0].ip4[0].ip }} remote-as external
+     neighbor {{ routers.r3.ifaces[0].ip4[0].ip }} timers 1 3
+     neighbor {{ routers.r3.ifaces[0].ip4[0].ip }} timers connect 1
+     neighbor {{ routers.r3.ifaces[0].ip4[0].ip }} oad
+    !
+    #%   elif router.name == 'r3'
+    router bgp 65003
+     no bgp ebgp-requires-policy
+     neighbor {{ routers.r2.ifaces[1].ip4[0].ip }} remote-as external
+     neighbor {{ routers.r2.ifaces[1].ip4[0].ip }} timers 1 3
+     neighbor {{ routers.r2.ifaces[1].ip4[0].ip }} timers connect 1
+     neighbor {{ routers.r2.ifaces[1].ip4[0].ip }} oad
+     address-family ipv4 unicast
+      redistribute connected route-map connected
+     exit-address-family
+    !
+    route-map connected permit 10
+     set local-preference 123
+     set metric 123
+    !
+    #%   endif
+    #% endblock
+    """
+
+
+class BGP_OAD(TestBase, AutoFixture, topo=topology, configs=Configs):
+    @topotatofunc
+    def bgp_converge(self, r1, r2, r3):
+        expected = {
+            "paths": [
+                {
+                    "aspath": {"string": "65002 65003"},
+                    "metric": 123,
+                    "locPrf": 123,
+                }
+            ]
+        }
+        yield from AssertVtysh.make(
+            r1,
+            "bgpd",
+            f"show bgp ipv4 unicast {r3.lo_ip4[0].ip} json",
+            maxwait=7.0,
+            compare=expected,
+        )