IPS Running Active/Active after reboot.

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L2 Linker

IPS Running Active/Active after reboot.

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.


Accepted Solutions
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L7 Applicator

Re: IPS Running Active/Active after reboot.

@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

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L2 Linker

Re: IPS Running Active/Active after reboot.

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


All Replies
Highlighted
L7 Applicator

Re: IPS Running Active/Active after reboot.

@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

Highlighted
L2 Linker

Re: IPS Running Active/Active after reboot.

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

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