GTM Deploy

Hello, I need help with GTM deploy.

 

I have two DataCenter each one GTM in standalone mode. In both DC ik have a cluster of LTM with a VIP and one DNS Bind server. I need gslb from VIP in this fashion.

 

- Clients that resolve in DC-A DNS obtain DC-A LTM VIP

 

- CLients taht resolve in DC-B DNS obtaint DC-B LTM VIP My deploy is

 

- Two servers (one for each LTM) with a virtual server (VIPs).

 

- Two pool each of them with one virtual server and toplogy as preferred and alternative method of lb

 

- One wideip with the pool and topology as lb method

 

- The nexts topology records

 

- Request Source: IP Subnet is DNS-A/32, Destination: Pool DC-A and weigth 100

 

- Request Source: IP Subnet is DNS-B/32, Destination: Pool DC-A and weigth 50

 

- Request Source: IP Subnet is DNS-B/32, Destination: Pool DC-B and weigth 100

 

- Request Source: IP Subnet is DNS-A/32, Destination: Pool DC-B and weigth 50

 

The GSLB work fine, when client resolve form DNS-A the GTM send VIP DC-A, when resolve from DNS-B the GTM send VIP DC-B. My problem is that is i down a server don't work. The LTM and GTM seen pool down, but GTM from one DC dont't resolve the other pool. For example, if i down VIP-A, client that resolve in DNS-B work fine in VIP-B but client that resolve in DNS-A don't resolve nothing. I don't understand why the sencond topology record don't work, it must resolve form DNS-A to Pool-B

 

 

Regards.