GTM topology loadbalancing

Hi all,

 

 

I encounter the problem on gtm loadbalancing based on topology.

 

 

my configuration is below:

 

 

Datacenter : A , B , C , D

 

Servers : server@A, server@B, server@C and server@D

 

pool1 : Topology (prefered), round robin (alternate)

 

pool1's member : server@A, server@B, server@C and server@D.

 

wideip1 : www.test.com, pool-> pool1

 

 

in my topology configuration, i want user A to go Datacenter A for server@b while user B to datacenter B for server@B. it is the same for user C and D.

 

 

while user E will go to only datacenter A and B.

 

 

i create the region_A_B and include datacenter A and B to it. then i added a topology region fro the LDNS source is user E, the destination will be region_A_B (either server@A and server@B).

 

 

however, what turn out is the DNS use the alternate method for loadbalancing the pool instead of using topology and os can't give me the expected result.

 

 

it seems that datacenter in region can't be assigned to be the destination of topology region.