Last Modified: May 29, 2024
Affected Product(s):
F5OS Velos
Fixed In:
F5OS-C 1.5.0
Opened: May 18, 2022 Severity: 2-Critical
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.
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.
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.
None.
The high availability (HA) failover logic now correctly issues unsolicited ARP replies (GARP) in order to flush/update the IP address mappings.