iRule Not Sending Request to Correct Pool

Hi,

I don't see any error in the irule.

you can try to log selected pool after switch:

when HTTP_REQUEST {
    log local0. "uri info: [HTTP::uri]"
    switch -glob [string tolower [HTTP::uri]] {
        "/webservice1*" { pool ws_pool1 }
        "/webservice2" { pool ws_pool2 }
        default { pool ws_pool3 }
        log local0. "pool info: [LB::server pool]"
    }
}