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liang_14081's avatar
liang_14081
Icon for Nimbostratus rankNimbostratus
Apr 08, 2009

SMPP TCP Splitting

Can F5 do TCP splitting for SMPP service by iRule?? I mean, in SMPP serivce, one TCP session will include multiple "sessions", and F5 can distribute those "sessions" to different servers in one pool?? If so, could you please provide a iRule example for me? Thanks very much!!!

 

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  • Michael_Koyfma1's avatar
    Michael_Koyfma1
    Icon for Cirrus rankCirrus
    Apr 08, 2009
    Yes, it's possible, but you will need to build an SMPP message parser. Basically, the idea is to issue LB::detach command after the end of each message transmission - which will force a new load-balancing decision to a different server in the pool for the subsequent message. The rough pseudocode idea is something like this:

     

     

    when CLIENT_ACCEPTED {

     

    TCP::collect

     

    }

     

    when CLIENT_DATA {

     

    determine that beginning and end of the message was received

     

    if end of the message was received {

     

    LB::detach

     

    }

     

    TCP::release

     

    TCP::collect

     

    }