Forum Discussion
Kevin_Nail
Nimbostratus
NimbostratusGTM and IP selection
Don't know if this issue has been addressed in this forum or not but...
We have an application that is fronted by LTM's in 2 different data centers. Both LTM's are reporting status to the GT...
Kevin_NailNimbostratus
Nimbostratus The job of the GTM is the monitor the LTM and the LTM monitors the application instance. So, in your scenario, are you saying that the application fails, LTM notices, tells the GTM, then the GTM starts handing out the new available site, then the client fails because it never re-requests?
Correct, this is exactly what is happening and I know that the GTM won't hand out the broken IP, that is not my intention. Ideally, I would like to have the IP be the same or move (as you suggested) to the other site, so that we do not have to depend on the client to re-request the IP. Just wasn't sure how to do that with the GTM. Thanks.
smp_86112
Cirrostratus
Cirrostratus> Ideally, I would like to have the IP be the same or move (as you suggested) to the other site, so that we do not have to depend on the client to re-request the IP.
Perhaps you are using the wrong product (GTM) for this. If you want intelligent failover behind an IP address that never changes, that seems like a job for the LTM, and not the GTM. With the LTM, you can use monitors and other features like priority groups to ensure connections are always routed to the available pool member, regardless of which data center it's in. This intelligence would all be masked behind a single Virtual Server address.
