tests: Check if stale routes are preserved in the kernel if hard rese…

…t is used Signed-off-by: Donatas Abraitis <[email protected]>
FRRouting · Feb 24, 2025 · d8c36b2 · d8c36b2
1 parent c246a2f
commit d8c36b2
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diff --git a/tests/topotests/bgp_gr_notification/r1/bgpd.conf b/tests/topotests/bgp_gr_notification/r1/bgpd.conf
@@ -1,6 +1,7 @@
 router bgp 65001
  no bgp ebgp-requires-policy
  bgp graceful-restart
+ bgp graceful-restart preserve-fw-state
  neighbor 192.168.255.2 remote-as external
  neighbor 192.168.255.2 timers 1 3
  neighbor 192.168.255.2 timers delayopen 10

diff --git a/tests/topotests/bgp_gr_notification/test_bgp_gr_notification.py b/tests/topotests/bgp_gr_notification/test_bgp_gr_notification.py
@@ -177,6 +177,30 @@ def _bgp_check_gr_notification_stale():
         }
         return topotest.json_cmp(output, expected)
 
+    def _bgp_check_gr_notification_stale_kernel():
+        output = json.loads(r1.vtysh_cmd("show ip route 172.16.255.2/32 json"))
+        expected = {
+            "172.16.255.2/32": [
+                {
+                    "protocol": "bgp",
+                    "selected": True,
+                    "distance": 20,
+                    "metric": 0,
+                    "installed": True,
+                    "nexthops": [
+                        {
+                            "fib": True,
+                            "ip": "192.168.255.2",
+                            "afi": "ipv4",
+                            "interfaceName": "r1-eth0",
+                            "active": True,
+                        }
+                    ],
+                }
+            ]
+        }
+        return topotest.json_cmp(output, expected)
+
     def _bgp_clear_r1_and_shutdown():
         r2.vtysh_cmd(
             """
@@ -210,6 +234,11 @@ def _bgp_verify_show_bgp_router_json():
     _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
     assert result is None, "Failed to see retained stale routes on R1"
 
+    step("Check if stale routes are retained in the kernel on R1")
+    test_func = functools.partial(_bgp_check_gr_notification_stale_kernel)
+    _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)
+    assert result is None, "Failed to see retained stale routes in the kernel on R1"
+
     step("Check if Hard Reset notification wasn't sent from R2")
     test_func = functools.partial(_bgp_check_hard_reset)
     _, result = topotest.run_and_expect(test_func, None, count=60, wait=0.5)