Forum Discussion
Chris_Reid_1643
Nimbostratus
NimbostratusHigh-availability configuration produces a status of "ONLINE (STANDBY), In Sync"
Problem: High-availability configuration produces a status of "ONLINE (STANDBY), In Sync" on the F5 primary and standby units.
Models: F5 1600
Big-IP Version: BIG-IP 11.5.0 Build 7.0.265 Ho...
bakterja_171057Nimbostratus
NimbostratusUsually 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
Jankes_162915Nimbostratus
NimbostratusSure, 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