H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 29/14 (2006.01) H04B 1/74 (2006.01)
Patent
CA 2744878
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.
Imajuku Wataru
Okazaki Yasutaka
Oki Eiji
Shimano Katsuhiro
Takikawa Yoshihiro
Nippon Telegraph And Telephone Corporation
Smart & Biggar
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