Forum Discussion

Yazid_Abdesslam's avatar
Yazid_Abdesslam
Icon for Nimbostratus rankNimbostratus
May 31, 2017

Send traffic from one VS to different pools depending on URI

Hello,

We have got: - 2 possible URI's, - 1 Virtual Server - 2 Pools

We'd like to forward traffic to Pool_CRM81_ccfr if uri contains or starts with "/ecommunications_ccfra" & send to Pool_CRM81_Content_80 if uri contains or starts with "/content" is the bellow iRule correct for our case?

when HTTP_REQUEST {

set uri [string tolower [HTTP::uri]]

if { $uri starts_with "/ecommunications_ccfra" } {
    pool Pool_CRM81_ccfra  
} elseif { $uri starts_with "/content" } {
    pool Pool_CRM81_Content_80
} else {
    drop
}

}

Also we'd like to enable persistance with cookie only for the 1st pool(ccfra) & not the second one

many thanks. regards,

application delivery
iRules
LTM
  • Ilian_Ivanov's avatar
    Ilian_Ivanov
    Icon for Nimbostratus rankNimbostratus
    May 31, 2017

    Yes, the iRule looks correct. About the persistence, you can set cookie persistence on your VIP and use that iRule to disable the persistence for Pool_CRM81_Content_80:

    when HTTP_REQUEST {
    set uri [string tolower [HTTP::uri]]
    if { $uri starts_with "/ecommunications_ccfra" } {
        pool Pool_CRM81_ccfra
    }
    if { $uri starts_with "/content" } {
        pool Pool_CRM81_Content_80
        persist none
    } 
    else {
        drop
    }
}
  • Stanislas_Piro2's avatar
    Stanislas_Piro2
    Icon for Cumulonimbus rankCumulonimbus
    May 31, 2017

    Hi,

    You can also use a switch instead of if / then / else

    when HTTP_REQUEST {
    switch -glob -- [string tolower [HTTP::uri]] {
        "/ecommunications_ccfra*" {
            pool Pool_CRM81_ccfra
        }
        "/content*" {
            pool Pool_CRM81_Content_80
            persist none
        }
        default {drop} 
    }
}
  • Earvin_247775's avatar
    Earvin_247775
    Icon for Altocumulus rankAltocumulus
    May 31, 2017

    Hi,

     

    also have this requirement before. You may try to use the Local Traffic Policies which is available on 11.5.3 and later.

     

    This works very similar to iRules on simple load balancing of http traffic and good thing is that it is done on GUI instead of tcl.

     

    Thanks, EJ

     

    • Yazid_Abdesslam's avatar
      Yazid_Abdesslam
      Icon for Nimbostratus rankNimbostratus
      May 31, 2017

      Thank You EJ

       

      I'm a bit newbie at Traffic Policies,

       

      can you help me applying this with the actual case?

       

      regards,