Bug ID 1107433: BIG-IP Next floating IPs do not properly issue GARPs on failover

Last Modified: Sep 13, 2022

Bug Tracker

Affected Product:  See more info
F5OS Velos(all modules)

Fixed In:
1.5.0

Opened: May 18, 2022
Severity: 2-Critical

Symptoms

The floating management IP of a BIG-IP Next high availability (HA) pair may not function correctly after an high availability (HA) failover when running on F5OS-C-1.4.0.

Impact

The floating management IP will not be usable for some period of time after failover. If a client is actively connected and sending packets, this condition can persist forever.

Conditions

When the BIG-IP Next active instance changes location, the mapping of IP to MAC address and switch ports needs to be updated in the network, or packets will continue to be routed to the "old" active instance.

Workaround

None.

Fix Information

The high availability (HA) failover logic now correctly issues unsolicited ARP replies (GARP) in order to flush/update the IP address mappings.

Behavior Change