Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Sukesh123456_25's avatar
Sukesh123456_25
Icon for Altostratus rankAltostratus
Jul 26, 2018

Failover time difference between active and standby

XXXX0001111(cfg-sync In Sync)(/S1-green-P:Active)(/Common)(tmos) show sys failover Failover active for 0d 05:36:15   XXXX00022222(cfg-sync In Sync)(/S1-green-P:Standby)(/Common)(tmos) show sys fai...
application delivery
LTM
Andy_McGrath's avatar
Andy_McGrath
Icon for Cumulonimbus rankCumulonimbus
Jul 26, 2018

This is showing the Redundant system failover state for the local F5 device.

It is per device so on XXXX0001111 it tells you it is in an Active state. While on XXXX00022222 it tells you it is in a Standby state.

The 0d 05:36:15 is how long it has been in this stat for. So when you ran the command 

show sys failover
on XXXX0001111 it had been in an Active state for 0 days 5 hour, 36 mins and 15 seconds.