Title:
TRAFFIC NETWORK FLOW CONTROL USING DYNAMICALLY MODIFIED METRICS FOR REDUNDANCY CONNECTIONS
Document Type and Number:
WIPO Patent Application WO2003091846
Kind Code:
A3
Abstract:
Distance vector routing protocols such as the Routing Information Protocol fail to rapidly reconfigure to use redundant links. By modifying the outgoing advertised hop count (31) upon detecting a failure in a connection (32) for which a backup or redundant connection exists, incoming traffic is diverted to the redundant or backup connection (33). An artificially high hop count (31) is advertised for a given port, and when a failure or loss of reachability occurs in a connection associated with that port (32), an advertisement of a lower hop count on the backup or redundant connection for the given port is triggered (33). This causes rapid rerouting of incoming traffic to the backup or redundant connection.
Inventors:
PATRICK MICHAEL W
GUO JUNJING
FOLEY STEPHEN A
GUO JUNJING
FOLEY STEPHEN A
Application Number:
PCT/US2003/012752
Publication Date:
February 26, 2004
Filing Date:
April 24, 2003
Export Citation:
Assignee:
GEN INSTRUMENT CORP (US)
International Classes:
H04L12/56; (IPC1-7): H04L12/28
Foreign References:
| US5935215A | 1999-08-10 | |||
| US5835696A | 1998-11-10 | |||
| US5845091A | 1998-12-01 |
Other References:
See also references of EP 1502395A4
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