Hierarchical virtual private LAN service protection scheme

Details Hierarchical virtual private LAN service protection scheme Hierarchical virtual private LAN service protection scheme

2007-10-16

2007-10-16

Beausoliel, Robert (Department: 2113)

Multiplex communications

Fault recovery

Bypass an inoperative switch or inoperative element of a...

C370S217000, C370S218000, C714S004110, C709S238000, C709S239000

Reexamination Certificate

active

10337382

ABSTRACT:
A data communication network includes a plurality of primary virtual bridges, interconnected by primary virtual connections so as to transmit and receive data packets over the network to and from edge devices connected thereto. One or more backup virtual bridges, each associated with at least one of the primary virtual bridges, are connected by at least one secondary virtual connection to at least another one of the primary virtual bridges, so that upon a failure of one of the primary virtual bridges with which it is associated, the backup virtual bridge transmits and receives the data packets over the network via the at least one secondary virtual connection in place of the at least one of the primary virtual bridges.

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