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Eunsu_Shin's avatar
Eunsu_Shin
Icon for Nimbostratus rankNimbostratus
Jul 05, 2012

Redirect user traffic if TCP queue is full

Hi all,

 

 

I would like to create a iRule which can redirect user traffic if tcp queue is full since if tcp queue is full then BIG-IP will drop new tcp conneciton.

 

 

As far as I know, Citrix NetScaler has this kind of feature. I have been looking for appropriate command like LB::queue but I couldn't find.

 

 

Any help would be appreciated.
application delivery
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2 Replies

  • nitass's avatar
    nitass
    Icon for Employee rankEmployee
    Jul 05, 2012
    have you checked v11? is it applicable?

     

     

    LB_QUEUED wiki

     

    https://devcentral.f5.com/wiki/iRules.LB-QUEUED.ashx
  • Eunsu_Shin's avatar
    Eunsu_Shin
    Icon for Nimbostratus rankNimbostratus
    Jul 06, 2012

    Hi Nitass,

     

    I don't think that this is applicable.

     

    According to below descryption, "LB_QUEUED" is a serverside event but what I am looking for is that a event triggered when a client side TCP queue is full.

     

    "LB_QUEUED is a serverside event triggered when a connection limit is hit at the pool or pool member level. HTTP redirection is permissable in this event, but HTTP::retry is not. If the queue limit is exceeded, LB_FAILED will be triggered."

     

     

    I believe that TCP queue is a new feature which is released in v11.2 so LB_QUEUED is not designed for TCP Queue.