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teemo_13's avatar
teemo_13
Icon for Cirrus rankCirrus
Aug 26, 2023

iRule Processing query

I have a question. If for example I have 2 events in an iRule when CLIENT_ACCEPTED {            if { [Condition]}{ do something}     } } when HTTP_REQUEST{            if { [Condition]}{ do...
application delivery
irule
  • teemo_13's avatar
    teemo_13
    Aug 27, 2023

    Nevermind, I've run this on my Lab. The answer is server 3 for all  those who would look for the answers

Mohamed_Ahmed_Kansoh's avatar
Mohamed_Ahmed_Kansoh
Icon for MVP rankMVP
Aug 26, 2023

Hi teemo_13 , 

If both events are triggered the traffic will be processed by both irules. 
you can use priority in irules to specifiy which irule process traffic first , look at this link to know about priority ( https://clouddocs.f5.com/api/irules/priority.html) 

you have to plan while writing irules  , it consumes bigip resources. 

  • teemo_13's avatar
    teemo_13
    Icon for Cirrus rankCirrus
    Aug 27, 2023

    HI Mohamed_Ahmed_Kansoh ,

    If I would not use priority, would the "if" statement in the "when HTTP_REQUEST" block after the "if" statement in the "when CLIENT_ACCEPTED" has happened?

    For example if I have a client 1.1.1.1 going to accessing server3.example.com:

    when CLIENT_ACCEPTED {
if { [IP::addr [IP:: client_addr] equals 1.1.1.1 ] } { pool server1
}
if ( [IP::addr [IP:: client_addr] equals 1.1.1.2 ] } { pool server2
}
}
when HTTP_REQUEST {
if
}
HTTP::host equals "server3.example.com" } pool server3
if {HTTP::host equals "server4.example.com" }
pool server4
}
}

    Will this go to server1 pool or the server3 prool?