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clay584_103411's avatar
clay584_103411
Icon for Nimbostratus rankNimbostratus
Feb 01, 2017

GTM Persistence across GTM Sync Group - Listeners are anycasted

I am deploying 4x GTMs in two separate data centers that will all be in the same GTM sync group. The GTM listeners will be part of an anycasted block so queries could come to either data center depending on routing. My question is regarding WIP persistence. If I turn on persistence and a query comes into data center A, to GTM1, that GTM will have a persistence table that will continue to give the same response for a given TTL. Considering anycast, if that same LDNS server makes a second query and anycast takes it to data center B, GTM1, will that GTM have the persistence record that GTM1 in data center A already has?

 

TLDR: Do GTM sync groups share persistence tables?

 

application delivery
BIG-IP DNS

1 Reply

  • Vijay_E's avatar
    Vijay_E
    Icon for Cirrus rankCirrus
    Feb 01, 2017

    Have you checked this out - K15594

     

    A BIG-IP DNS synchronization group is a collection of multiple BIG-IP DNS systems that share and synchronize configuration settings, including persistence information.

     

    Slightly off topic: Are you deploying an HA pair in each DC ?