Fault-protection mechanism for protecting...

Details Fault-protection mechanism for protecting... Fault-protection mechanism for protecting...

2005-07-05

2005-07-05

Bonzo, Bryce P. (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

06915445

ABSTRACT:
A method for providing fault-tolerance for Multi-Path Label Switching (MPLS) functionality in a multi-processor network routing node has the steps of (a) implementing an MPLS server application including state information, on a first and a second processor in the node; (b) designating the MPLS server on the first processor as a master server and the MPLS server on the second processor as a backup server, and providing MPLS functionality in the node with the master MPLS server; (c) directing all required MPLS events to both the master and the backup MPLS servers during operation; (d) monitoring operation of the master server; and (e) in the event of failure of the master server, designating the backup server as the master, allowing MPLS functions to continue on the routing node.

REFERENCES:
patent: 6332198 (2001-12-01), Simons et al.
patent: 6715097 (2004-03-01), Kidder et al.
patent: 2003/0046604 (2003-03-01), Lau et al.
patent: 2003/0110287 (2003-06-01), Mattson

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