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smilanko_261688's avatar
smilanko_261688
Icon for Cirrus rankCirrus
Jul 19, 2016

Topology Load balancing for pool members

I am looking at the following guide: GTM Topology

 

I am attempting to apply a similar concept to pool members, as opposed to global traffic. Here is a photo of my current pool membership, currently, working towards failover.

 

 

So my question is, is it possible to apply topology based routing on members of a pool so that a connection is leased out depending on where the client is?

 

i.e I am in California, and while 10.10.20.71 has a higher priority number, 10.10.21.144 is much closer. F5 will instead get a connection to that server, and process data.

 

APM
application delivery
BIG-IP
devops

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  • Vijay_E's avatar
    Vijay_E
    Icon for Cirrus rankCirrus
    Jul 19, 2016

    I am not 100% sure about the question that you are asking but let me share some information based on experience working with GTM - I know for sure you can do it using iRule. Normally, I would recommend using multiple pools based on the location and then use Topology based LB at the WIP level. Is there a reason for avoiding Topology load balancing at the WIP level ?

     

  • janholtz_40468's avatar
    janholtz_40468
    Icon for Nimbostratus rankNimbostratus
    Jul 20, 2016

    Create a new pool with the same members for each client ip group. each pool then has specific priority groups. So: ca_pool member1 prio group 20, member2, prio group 10 ny_pool member1 prio group 10, member2, prio group 20

     

    Then: when CLIENT_ACCEPTED { if {[class match [IP::remote_addr] equals ny_addresses ] } { pool ny_pool } else { pool ca_pool } }