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fa141_28766's avatar
fa141_28766
Icon for Nimbostratus rankNimbostratus
Apr 19, 2012

irule to replicate UDP accross multiple nodes

Hello,

 

 

I'm looking for some help to create an irule that will replicate UDP traffic accross multiple nodes.

 

 

The traffic is netflow.

 

 

Client hits VIP 10.10.10.10 on LTM and the LTM sends this netflow traffic to both node A and node B. I've tried clone pools, though they don't change the IP on the server.

 

 

Does anyone have any experience with this type of irule.

 

 

Thanks,

 

 

Peter M.
application delivery
dev
devops
iRules
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Apr 19, 2012
    Hi Peter,

     

     

    Which LTM version are you running? If you want to copy UDP traffic to multiple destinations and you can translate the source IP to an LTM self IP, you can use high speed logging (HSL) for this:

     

     

    https://devcentral.f5.com/wiki/iRules.hsl.ashx

     

     

    Add a single destination IP:port to a pool and then call HSL::open once per pool and send messages using HSL::send.

     

     

    If you can't translate the source address and are on 11.x, you could use a UDP sideband connection:

     

     

    https://devcentral.f5.com/wiki/iRules.sideband.ashx

     

     

    Aaron
  • fa141_28766's avatar
    fa141_28766
    Icon for Nimbostratus rankNimbostratus
    Apr 19, 2012
    I've using version 10. Can you use HSL for Netflow traffic. I am very new to irules.

     

     

    Thanks,

     

     

    Peter M.