Forum Discussion

Krishna_251070's avatar
Krishna_251070
Icon for Nimbostratus rankNimbostratus
Mar 29, 2018

Traffic Group Failover when Trunk Fails

Hello,   I have a pair of F5 LTMs running as Active-Standby in a traffic group. Both the LTMs have trunks configured from a switch.   What will happen when all the interface in the trunk fails ...
application delivery
BIG-IP
LTM
  • swjo_264656's avatar
    swjo_264656
    Mar 30, 2018

    Hi

     

    You should setup HA-GROUP if you track trunk interface.

     

    HA-GROUP setup should be on each of your device(Active and Standby)

     

    HA-GROUP configuration isn`t syncable feature.

     

    please refer to it.

     

swjo_264656's avatar
swjo_264656
Icon for Cirrostratus rankCirrostratus

Hi

 

You should setup HA-GROUP if you track trunk interface.

 

HA-GROUP setup should be on each of your device(Active and Standby)

 

HA-GROUP configuration isn`t syncable feature.

 

please refer to it.

 

swjo_264656's avatar
swjo_264656
Icon for Cirrostratus rankCirrostratus
Mar 31, 2018

I can`t answer your question very accurately.

 

but BIGIP system with HA pair, always check peer device`s Active-Standby status.

 

When one`s peer goes Active to standby, immediately goes Active.

 

For my experience, failover configuration via HA-GROUP have no delay.

 

If you see /var/log/ltm and when interface down, immediately calculate HA Score

 

and failover event occurs.