Network apparatus, system and method for discovering path MTU in data communication network
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United States of America Patent
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Jul 12, 2011
Grant Date -
Feb 24, 2005
app pub date -
Jul 29, 2004
filing date -
Aug 6, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An apparatus, system, and method for discovering a path MTU in a data communication network, wherein a path MTU option header is included in a signal message or first data packet and thus a MTU suitable for a routing path can be determined. A network apparatus for discovering a path MTU maximum transmission unit (MTU) in a data communication network, including a MTU-comparing unit MTU-comparer detecting a path MTU recorded on a predetermined packet transferred over a routing path between a source node and a destination node and comparing the detected path MTU with an internal MTU stored in the MTU-comparing unit MTU-comparer; and an event-processing unit event-processor updating the path MTU recorded on the predetermined packet to contain the internal MTU if the detected path MTU is larger than the internal MTU.
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