Device and method for correcting a path trouble in a communication network
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United States of America Patent
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Mar 13, 2012
Grant Date -
Nov 16, 2006
app pub date -
Feb 20, 2004
filing date -
Feb 21, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a disclosed backup path bandwidth keeping method for keeping bandwidth of a backup path to which an active path is switched when the active path becomes unavailable in nodes of a communication network, each node is connected to the same destination, and the method includes a backup path bandwidth keeping phase, for M (M is a natural number equal to or less than L) channels in L (L is a natural number) channels kept as backup path bandwidth, for notifying a destination-side node existing in a destination side of the backup path of identification number information of the M channels to be kept and identification information indicating that a path for which the bandwidth is to be kept is a backup path.
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