Forum Discussion

bakterja_171057's avatar
bakterja_171057
Icon for Nimbostratus rankNimbostratus
Jun 20, 2016

Usually if there would be an issue with communication channel you would end with Active-Active state - not a Standby-Standby.

 

  • step 7 - check if network failover checkbox is marked
  • verify if your device-group includes both devices (on the left side)
  • check /var/log/ltm for high availability status. Look for "Active" and "Standby" messages

You can try to reset trust and setup HA again as per: https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos-implementations-11-5-0/2.html

 

  • Chris_Reid_1643's avatar
    Chris_Reid_1643
    Icon for Nimbostratus rankNimbostratus
    Jun 21, 2016
    I've looked over this documentation in the past. However, our current setup does't have an external VLAN because the F5 is used for internal purposes only. Additionally, I don't currently have an internal VLAN configured because I will be migrating settings into this F5 implementation. Can I still use this documentation to configure high-availability?
  • Jankes_162915's avatar
    Jankes_162915
    Icon for Nimbostratus rankNimbostratus
    Jun 21, 2016
    Sure, you don't need internal and external vlans - these are used to process actual clients and server traffic. For HA you need only single vlan to pass HA traffic. For pure failover you can use management interface/network. However for config-sync you will need didicated vlan. **This indeed looks like vlan failsafe behaviour like Odaah said. You can double check that: https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/tmos-concepts-11-5-0/19.html