intelligent load balancing issue

Jahmedj, the subtlety in the link that vaibhav provided is that there are two pools.  In general, a "node" on a BIG-IP corresponds to a target IP address of a forwarding target.  A "pool member" is the combination of a "node" and a layer4 port.  A "pool" consists of a collection of zero or more "pool members".  The two pools would have members that have the same node IPs, but different ports, as in:

ltm node server01 { address 10.10.1.5 }
ltm node server02 { address 10.10.1.6 }
ltm pool target_7901 {
   members { server01:7901 server02:7901 }
}
ltm pool target_7902 {
   members { server01:7902 server02:7902 }
}

Your Local Traffic Policy would then target the corresponding pool based on the URI path match.