Acme Packet (MOSC)

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Why am I receiving a "513 Message Too Large" response?

edited Jun 3, 2013 4:06PM in Acme Packet (MOSC) 6 commentsAnswered


The SD adheres closely to the requirements of RFC 3261 (sending messages over 1300 bytes, or within 200 bytes of the link MTU, over TCP). However, if SIP/TCP is not configured on your SD, the SD will reject large messages with a ?513 Message Too Large? error.

 

To resolve this issue you must set the option "max-udp-length=0" in the sip-config. This will cause the SIPD task to send fragmented packets over UDP in case the packet size is too big and will prevent it from responding with a 513 message. Note that adding this option is dynamic in nature, so a reboot is not required for this change to take effect.

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