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Title : Optimal Detecting Increases in PMTU
Author(s) : H. Lee et al.
Filename : draft-lee-optimal-detect-pmtu-00.txt
Pages : 6
Date : 2002-10-8
This document presents a new method for the detection of increases
in PMTU using the newly defined Hop-by-Hop option header.
To detect increases in a path's PMTU, a node does not increase its
assumed PMTU unconditionally without considering network status,
but measures its real PMTU, and then replaces the previous PMTU with
new one. To measure node's real PMTU, the node sends the IP packet
with the newly defined Hop-by-Hop option header to the destination
node right before a timer expires. This can eliminate the chance of
occurrence of packets being discarded and Packet Too Big messages
being generated.
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