For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

JG's avatar
JG
Icon for Cumulonimbus rankCumulonimbus
Feb 02, 2016

Which failover address gets used first in an event of network failover?

In this case, there are 3 failover IP addresses configured for use of failover: mgmt address, a self IP address in a dedicated HA VLAN, and a multicast address on the interface eth0.   Which addre...
application delivery
BIG-IP
LTM
IanB's avatar
IanB
Icon for Employee rankEmployee
Feb 02, 2016

The BigIP continuously sends keepalive packets to the failover addresses - you can see these with 'tcpdump -n -i udp and port 1026'. As long as the standby unit(s) see these packets, they will remain in standby state

 

A simultaneous failure to all addresses is required to trigger a failover.