GTM - Topology load balancing failover when one pool is down

Hello,

We had the loggin already enabled and we use dthis to verify that the topology load balancing was selecting the pool with al lmemembers down:

[pool member check failed (Yyyyyyyy_RAS:y.y.y.y)]
[pool member (Yyyyyyyy_RAS:y.y.y.y) deleted persistence (y.y.y.y)]
[matched topology record (ldns:(region:/Common/Japan_RAS_VPN_region), server:(pool:/Common/Geneva_RAS_VPN_Pool), score:20) to pool (Geneva_RAS_VPN_Pool)]
[matched topology record (ldns:(region:/Common/Japan_RAS_VPN_region), server:(pool:/Common/Japan_RAS_VPN_Pool), score:200) to pool (Japan_RAS_VPN_Pool)]
[topology selected pool (Geneva_RAS_VPN_Pool) - topology score (20) is higher]
[topology selected pool (Japan_RAS_VPN_Pool) - topology score (200) is higher]
[topology selected pool (Japan_RAS_VPN_Pool) with the highest topology score (200)]
[topology selected pool (Japan_RAS_VPN_Pool)]
[pool member select check failed (Zzzzzzzz_RAS_VPN:z.z.z.z) - pool member is disabled]
[pool member select check failed (Yyyyyyyy_RAS:y.y.y.y) - pool member is disabled]
[round robin failed to select a pool member]
[failed to select pool member by preferred load balancing method]
[selected configured option Return To DNS]

We were using the default "Return to DNS" as the faillback load balancing method.  If the Fallback load balancing method as topology, would this not only apply the topology rules ot the pool members of the pool.  But I have not tested what you have suggest. I will test it when I can.

Many thanks,

Michael