GTM Topology - LDNS Request

Hi John,

I agree with Brad on this, your load balancing looks a bit confused on this, perhaps we're not seeing the whole story.

If the WIP only has one Pool i.e. www.mydomain.com has just Pool A, then no load balancing occurs. Once Pool A is chosen then the LB algorithm is Topology, however, none of your topology records will match. This is because topology records are associated to Wide IPs or Pools for which they are appropriate. For instance, ones that choose a pool are only associated with WIPS that use that pool and ones that choose a virtual server are only associated with pools which have those virtual servers as members. Hope that makes sense. In example 1, www.mydomain.com will chose a pool member in Pool A using Round Robin. In example 2, again Pool A and in example 3 Pool D. That's my guess anyway on the info above.

Best practice seen is get the Wide IP to choose from a number of Pools using Topology and Pools to choose from a number of virtual servers on a Data Centre basis using Topology.

Hope this helps, be great if you could come back to DC with your setup confirmed.

N