Forum Discussion

DineshVM_265886's avatar
DineshVM_265886
Icon for Altostratus rankAltostratus
Jun 21, 2017

BigIP LTM Standby device is showing offline on the active device

We are using the BigIP LTM in HA with Active/Standby mode. Eventhough the configuration is in sync between them, the active device is showing the standby device as offline. And also the traffic group...
application delivery
clustering
ha group
LTM
bjett_224741's avatar
bjett_224741
Icon for Altostratus rankAltostratus
Dec 18, 2017

I had a similar issue while trying to add the Standby to HA the F5 KB steps recommend putting Standby in a "Forced Offline" state while preparing sync. Check the HA heartbeat Self-IP settings and be sure the port lockdown mode is "allowed default" The default setting is "allow none" which blocks the heartbeat but CMI is the exception to "allow none" so sync works. https://support.f5.com/csp/article/K13250

 

Doubt this is your problem but this came up in my search when I had the issue and may help others.

 

  • vigyu's avatar
    vigyu
    Icon for Altocumulus rankAltocumulus
    Apr 28, 2023

    Hi

    allow-none -> allow-default settings helped me

    Thanks.