F5 BIG-IP LTM and Genesys

Just a quick blog as an Aide-mémoire for myself. When using F5 BIG-IP devices to provide a Virtual
IP Address (VIP) for Genesys SIP HA Pairs:

  • Use BIG-IP build v11.2.0.2446.0
  • Disable Clustered Multi-Processing (CMP) on all virtual servers
  • Ensure that source port is set to “Preserve” rather than “Preserve Strict”

  • Ensure that all iRules use SIP message events rather than client connected events as
    incorrectly documented on page 31 of the 2009 document “SIP Server Integration Guide with
    F5 Networks Big-IP Local Traffic Manager” e.g.

when SIP_REQUEST {
when SIP_RESPONSE {

and not:

when CLIENT_ACCEPTED {

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