F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

LeaV97_339056's avatar
LeaV97_339056
Icon for Nimbostratus rankNimbostratus
Jun 07, 2018

iRule with switch

I have an application that needs to be routed based on the incoming port . They have 5 different pools each with 25 ports. I'm thinking 1 VS with all ports open and then using an iRule to control t...
application delivery
iRules
leonline_225556's avatar
leonline_225556
Icon for Altostratus rankAltostratus
Jun 07, 2018

Hi LeaV97,

Using the regexp argument with the switch command you can easily match on numeric ranges. The following iRule will probably help you.

when CLIENT_ACCEPTED
{

    switch -regexp [TCP::local_port] 
    { 
        [10000-10024] { pool pool-site1 } 
        [10025-10049] { pool pool-site2 } 
        [10050-10074] { pool pool-site3 } 
        default { pool default_pool } 
    }
}

http://www.tcl.tk/man/tcl8.4/TclCmd/switch.htmM8