Arrangement and method for protection switching

Details Arrangement and method for protection switching Arrangement and method for protection switching

2007-05-08

2007-05-08

Pham, Brenda (Department: 2616)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C219S385000, C219S395000

Reexamination Certificate

active

10279027

ABSTRACT:
The present invention relates to an arrangement and a method for protection switching. According to the invention the arrangement includes at least one primary and at least one secondary egress switch port, a routing table and a selection table. The method includes: Checking which group identity an ingress flow identity of a data flow is associated with. Checking if a primary or a secondary egress switch port routing address is to be used for said group identity. Switching the data flow to the egress switch port corresponding to the egress switch port routing address that is to be used.

REFERENCES:
patent: 6721269 (2004-04-01), Cao et al.
patent: 6940810 (2005-09-01), Roa-Diaz
patent: 6952395 (2005-10-01), Manoharan et al.
patent: 7039045 (2006-05-01), Gullicksen
patent: 7075889 (2006-07-01), Shiozawa
patent: 2003/0012481 (2003-01-01), Fant et al.
patent: 197 41 431 (1999-03-01), None
patent: WO 99/11090 (1999-03-01), None

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