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Forum Discussion

Pirlo's avatar
Pirlo
Icon for Nimbostratus rankNimbostratus
Aug 23, 2017

GTM Topo Failure

I have GTM Topolgy failover scenario I am trying to get working and cannot identify proper solution.   The below configuration works as expected   WIP Configured as Topolgy with 3 pools and wo...
application delivery
BIG-IP DNS
gsharri's avatar
gsharri
Icon for Altostratus rankAltostratus
Aug 23, 2017

Try this config. I think this will do what you want:

 

  1. NY pool. LB methods preferred: RR, alternate: none, fallback: none
  2. Phx pool.LB methods preferred: RR, alternate: your_choice, fallback: your_choice
  3. Assign pools to wideip. Wideip LB method: topology
  4. Custom topology region containing NA, SA, Oceania
  5. Topology record NA,SA,O > NY pool, weight 100
  6. Topology record: NA,SA,O > Phx pool, weight 50
  7. GTM will select the matching record with the highest weight (NY pool) but if all NY members are unavailable and alt/fallback LB methods=none it will then move on to a matching record with a lower weight (Phx pool).
  8. When NY is available again name resolution will resume to NY but you can set manual resume on the NY pool so GTM doesn't switch back automatically.