Forum Discussion

jordanca's avatar
jordanca
Icon for Nimbostratus rankNimbostratus
May 15, 2017

Add-on Key disruption to traffic

I have a couple of production LTM boxes running in active/standby....version 11.6.1 HF2. Also have APM provisioned for testing but not yet licensed.

 

When I add the add-on key to license APM can I expect any disruptions to my prod LTM traffic/connections?

 

I take it..yes as per the following https://support.f5.com/csp/article/K7752

 

Just wanted to confirm.

 

Also, would it be worth failing over to the standby once the license has been entered on it before entering the license on the active. Or is traffic disruption hardly noticeable when adding a license? I'm not using mirroring.

 

Thanks, Jordan

 

application delivery
BIG-IP Access Policy Manager (APM)
licensing
LTM

1 Reply

  • THi's avatar
    THi
    Icon for Nimbostratus rankNimbostratus
    May 15, 2017

    The configuration is reloaded when (after) adding the add on-key. This may cause disruption to services, depends on what kind of services you have configured and how busy those are. So consider to do it at a quiet time. Anyway, I suggest to apply the add-on the license first to the standby unit. Then do a failover, check that all is ok and traffic continues. After that apply the second add on key to the new standby. Finally fail back.