> From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip- > implementors-boun...@lists.cs.columbia.edu] On Behalf Of Suresh > Arunachalam > > How do we handle fragmented packets on SIP. I have been having problem of > handling Notifiication message with over MTU size. Often the dialog state > information on notification mesage xml body crosses 700 ~ 800 bytes > making > message size over 1500 bytes. >
You are better off using an end-to-end congestion controlled protocol like TCP or SCTP to get over this fragmentation problem. RFC 3261 section 18: "All SIP elements MUST implement UDP and TCP." Section 18.1.1: "If a request is within 200 bytes of the path MTU, or if it is larger than 1300 bytes and the path MTU is unknown, the request MUST be sent using an RFC 2914 [43] congestion controlled transport protocol, such as TCP." Thanks, Bhaskar _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
