Load Balancing over two links

Hi guys,

 

I am sure what i am about to ask has already been discussed here. I have two internet links terminated on GTM and I have a Wild card Virtual Server taking the traffic to internet. I have two proxy servers sitting inside my network and I want one Proxy to utilize one ISP link and the other to utilize the other link and in case of failure of one of the links all the web traffic of that link should go via the second link. Can someone help me with an irule to achieve this.

 

 

Regards,