Multiplex communications – Fault recovery
Reexamination Certificate
2007-04-24
2007-04-24
Pezzlo, John (Department: 2616)
Multiplex communications
Fault recovery
C370S242000, C370S389000
Reexamination Certificate
active
10108966
ABSTRACT:
In a label transfer network, an ingress node positioned at an upstream side end of a partial section of a first data transfer path (old path) transmits a path modify request, and an egress node positioned at a downstream side end of the partial section returns a label allocation request on a detour path (new path) to the ingress node in response to reception of the path modify request for implementing partial path modification from the old path to the new path. This enables the partial path modification with only a node bearing relation to the path modification, thus shortening the time needed for the path modification and suppressing an increase in extra control traffic for a node having no relation to the path modification.
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Kano Shinya
Miyabe Masatake
Katten Muchin & Rosenman LLP
Pezzlo John
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