Method for rerouting in hierarchically structured networks

Details Method for rerouting in hierarchically structured networks Method for rerouting in hierarchically structured networks

1998-02-13

2000-09-05

Maung, Zarni

Electrical computers and digital processing systems: multicomput

Computer-to-computer data routing

Routing data updating

709241, 709239, 370256, 370390, G06F 1338, G06F 1517

Patent

active

061157538

ABSTRACT:
A method for rerouting a connection set up along a path calculated between a first node (A.1.2) and a second node (C.2), of a switching network structured into a plurality of peer groups at at least two hierarchical levels, implies that within a peer group along said path, of not the highest hierarchical level, a local alternative path within this peer group is established between an entering border node and an outgoing border node of said peer group, based on path information stored within this entering border node during set up of the connection, and including an identifier of said outgoing border node of said peer group. In a variant method this path information is stored within each entering border node of each peer group, thereby allowing the local alternative path to be established in the lowest level peer group possible.

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ATM-Forum/96-1691 by Iwata et al, "Basic Signalling Procedures for Fault Tolerant PNNI Routing" Dec. 1-6, 1996.

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