IPS Running Active/Active after reboot.

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IPS Running Active/Active after reboot.

L3 Networker

I upgraded a few pair of IPS/IDS devices last night and ran into an odd issue I haven't seen when upgrading other devices before. They run, typically, in Active/Passive mode, so when I upgrade I suspend one, upgrade, reboot, unsuspend it, and then repeat the process on the other device.

 

Last night after I walked through this process the devices came active and stayed active, despite them both being up. I have had to suspend one of these IPS/IDS devices in several locations to ensure only one is active.

 

Does anyone know why this happened and what the resolution may be?


Thanks.

2 accepted solutions

Accepted Solutions

Cyber Elite
Cyber Elite

@Gareth.Doyle,

Sounds like your devices went into split-brain and aren't able to see each others status, so they'll both actively be active assuming the other device is offline. I would look at you HA stats and ensure that the devices are properly communicating with eachother. 

View solution in original post

Yes, what I have learned is that after a major upgrade the HA keys are no longer referenced accordingly and must be manually exported and imported to restore this connectivity.

View solution in original post

2 REPLIES 2

Cyber Elite
Cyber Elite

@Gareth.Doyle,

Sounds like your devices went into split-brain and aren't able to see each others status, so they'll both actively be active assuming the other device is offline. I would look at you HA stats and ensure that the devices are properly communicating with eachother. 

Yes, what I have learned is that after a major upgrade the HA keys are no longer referenced accordingly and must be manually exported and imported to restore this connectivity.

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