OCPBUGS-43947: Updated the OPENSHIFT_HA_NETWORK_INTERFACE description

dfitzmau · openshift-cherrypick-robot · commit 9d405cb2e5a9 · 2025-02-27T10:54:20.000Z
diff --git a/modules/nw-ipfailover-environment-variables.adoc b/modules/nw-ipfailover-environment-variables.adoc
@@ -19,7 +19,9 @@ The following table contains the variables used to configure IP failover.
 
 |`OPENSHIFT_HA_NETWORK_INTERFACE`
 |
-|The interface name that IP failover uses to send Virtual Router Redundancy Protocol (VRRP) traffic. The default value is `eth0`.
+|The interface name that IP failover uses to send Virtual Router Redundancy Protocol (VRRP) traffic. The default value is `eth0`. 
+
+If your cluster uses the OVN-Kubernetes network plugin, set this value to `br-ex` to avoid packet loss. For a cluster that uses the OVN-Kubernetes network plugin, all listening interfaces do not serve VRRP but instead expect inbound traffic over a `br-ex` bridge.
 
 |`OPENSHIFT_HA_REPLICA_COUNT`
 |`2`

Original file line number	Diff line number	Diff line change
`@@ -19,7 +19,9 @@ The following table contains the variables used to configure IP failover.`
`19`	`19`
`20`	`20`	\|`OPENSHIFT_HA_NETWORK_INTERFACE`
`21`	`21`	`\|`
`22`		-\|The interface name that IP failover uses to send Virtual Router Redundancy Protocol (VRRP) traffic. The default value is `eth0`.
	`22`	+\|The interface name that IP failover uses to send Virtual Router Redundancy Protocol (VRRP) traffic. The default value is `eth0`.
	`23`	`+`
	`24`	+If your cluster uses the OVN-Kubernetes network plugin, set this value to `br-ex` to avoid packet loss. For a cluster that uses the OVN-Kubernetes network plugin, all listening interfaces do not serve VRRP but instead expect inbound traffic over a `br-ex` bridge.
`23`	`25`
`24`	`26`	\|`OPENSHIFT_HA_REPLICA_COUNT`
`25`	`27`	\|`2`