GTM iRule Help?

Hi Nk-SPG

Please follow step below,

1. Create virtual server B for wide ips B in object GSLB server 

2. Create virtual server A for wide ips A and select depen on virtual server B in object GSLB Server

******* Configuring virtual server availability to be dependent on the status of other virtual servers ***

BIG-IP GTM Configuration (f5.com)

3. Create GSLB Pool bind with virtual server A for wide ips A

4. Crate wide ips cnameA type cname that bind with pool A

5. Create GSLB Pool type cname that bind wide ips cnameA

6. Create wide ips A type cname that bind with pool cname

I hope this solution will help you without irule