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Requirements for IP-in-IP Tunnel MTU Assurance

Document Type Expired Internet-Draft (individual)
Expired & archived
Author Fred Templin
Last updated 2006-10-22
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


IP-in-IP tunnels present a Maximum Transmission Unit (MTU) to layer 3 via static prearrangements and/or dynamic MTU determination based on layer 2 ICMP messages, but these methods have known operational limitations that can fail to enforce an assured MTU resulting in degraded performance and communications failures. A method for providing an assured MTU to layer 3 over IP-in-IP tunnels is needed.


Fred Templin

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)