Manual Chapter : iRules on all transports

Applies To:

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BIG-IP LTM

  • 16.0.0, 15.1.0, 15.0.1, 15.0.0, 14.1.2, 14.1.0, 14.0.1, 14.0.0, 13.1.3, 13.1.1, 13.1.0
Manual Chapter

iRules on all transports

With MRF the outgoing connection may not use the same transport as the incoming connection. Incoming connections are defined via virtual servers. Outgoing connections are often defined with transport-configs. If the same iRule script is desired to run on all connections, the script should be defined for all transports.
For example tests assume a simple load balancing configuration with a virtual server (VS_IN) that is part of a router instance with a single default route. This default route contains a single peer that uses a transport-config (TC_OUT) to define the parameters of the outgoing connection. In this setup, a request message would be received on VS_IN. The request message would ingress on a hudchain configured via the settings of the virtual server. As the message was processed, the SIP_REQUEST and MR_INGRESS events would be raised on the iRule scripts attached to the virtual server. The request message would be forwarded to an outgoing connection configured via the setting of the transport-config. As the message egressed through the outgoing connection, the MR_EGRESS and SIP_REQUEST_SEND events would be raised on the iRule scripts attached to the transport-config. When the response message is received by the outgoing connection, the SIP_RESPONSE and MR_INGRESS events would be raised on the iRule script attached to the transport-config. The response will be forwarded to the connection that originated the request and the MR_EGRESS and SIP_RESPONSE_SEND events would be raised on the iRule script attached to the virtual server.
iRules on all transports
iRules on all transports