Forum Discussion
active - active status
Set up:
- Two (2) F5 rSeries load balancers, in HA set up, in active - standby status.
- Their ConfigSync is within the same traffic group.
- Both of their Self IP addresses are reachable from each other.
Configuration change:
- After changing the management IP address of the two F5 load balancers, their status suddenly changed to active - active.
- In order to make their status return to active - standby, we redeployed in F5OS.
Question:
- Is that sudden change to active - active status considered as expected behavior?
2 Replies
Yep. Check the unicast addresses on each tenant (show cm device).
Normally, you should have two IPs configured - the management IP and a self IP. This helps to prevent a split brain scenario if the devices can't reach each other on one set of IPs.
If you changed the IPs and they aren't able to reach each other on these IPs that would absolutely cause an active/active situation. I believe you will also have to update the HA configuration, I can't remember the exact spot, that was using that old management IP. I think the easiest way to find this spot would be to perform a config diff and see what didn't carry over.
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