Multiplex communications – Pathfinding or routing – Through a circuit switch
Patent
1996-11-08
1999-11-16
Chan, Jason
Multiplex communications
Pathfinding or routing
Through a circuit switch
370907, H04L 1228, H04L 1250, H04L 1256, H04Q 1100
Patent
active
059870273
ABSTRACT:
A connection procedure for finding by rearrangement a path for multirate, multicast traffic through an SDH cross-connect with subnetwork connection protection. If no free path for a new payload through the SDH switching hardware is available, the switching procedure looks for a path that is adequate and blocked by the least existing payload capacity. If the hunt is successful, the procedure rearranges the existing connections to make possible a path for the new payload. The procedure does not interrupt the existing connections; thus it is a "hitless" procedure. Connections for existing payloads that must be moved to make way for the new payload are queued and the connection procedure is applied recursively, to each in turn, until the queue is empty.
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Owen Henry Walter Lilly
Park Won Bae
Zegura Ellen Witte
Alcatel
Chan Jason
Kwoh Jasper
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