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mbadet_119292's avatar
mbadet_119292
Icon for Nimbostratus rankNimbostratus
Nov 13, 2013

Persistence of session per cookie

Hi all, I am a beginner about the BigIp load-balancer and I have a question about the behavior of this one in a particular case of use. I have a BigIp configured to share traffic between two active servers (S1 and S2 for example) but the BigIp is also configured with the persistence of session per cookie insertion. What's happen when the BigIp receives a request with a cookie for the IP address of S1 server (for example) if the S1 server is KO? Will the request forward to the S2 server even the cookie containts the IP address of S1 server? Thanks a lot for you answer. Have a nice day. Michel

 

availability
BIG-IP
deployment
management
session management

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  • What_Lies_Bene1's avatar
    What_Lies_Bene1
    Icon for Cirrostratus rankCirrostratus
    Nov 13, 2013

    You are correct, the cookie will also be rewritten to S2 when the first server response (from S2) is sent back to the client. The client will then send a cookie specifying S2 on all subsequent requests.

     

  • mbadet_119292's avatar
    mbadet_119292
    Icon for Nimbostratus rankNimbostratus
    Nov 13, 2013

    Thanks a lot for this answer. So if the application is statefull, we will have issues when the following requests will arrive on the second server ;-). It's clear in my mind. Best regards. Michel