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Title:
SYSTEM AND METHOD FOR LINK-STATE BASED PROXY FLOODING OF MESSAGES IN A NETWORK
Document Type and Number:
WIPO Patent Application WO2004054100
Kind Code:
A3
Abstract:
The invention includes a method and apparatus for disseminating information in a communication network having a plurality of nodes. The method includes receiving, in a node, a packet including link-state advertisements (LSAs) from the communication network and a flooding status field. Based on the flooding status field, the node determines the type of LSA received and then re-floods the packet onto the communication network, based on the type of LSA determined from the flooding status field. A sub-field in the flooding status field indicates whether the LSA is intended for distribution to the entire communication network, or is intended for distribution to other nodes in the communication network located within a predetermined range of the node. The node prevents re­flooding of the LSA, if the other nodes in the communication network are located outside of the predetermined range. The node includes a re-flood timer which is set to expire based on an urgency level included in the flooding status field. The node waits for the re-flood timer to expire and then re-floods the LSA packet from the node onto the communication network.

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Inventors:
LI CHRIS CHO-PIN
YOON CHANG-JUNE
Application Number:
PCT/US2003/039527
Publication Date:
April 21, 2005
Filing Date:
December 11, 2003
Export Citation:
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Assignee:
ITT MFG ENTERPRISES INC (US)
International Classes:
H04L12/56; (IPC1-7): H04L12/56
Domestic Patent References:
WO2001058237A22001-08-16
Other References:
"TCP/IP tutorial and technical overview", IBM REDBOOKS, August 2001 (2001-08-01), USA, pages 159 - 164, XP002308354
YOON C J ET AL: "Optimization of routing protocol for packet radio networks", TACTICAL COMMUNICATIONS CONFERENCE, 1996., PROCEEDINGS OF THE 1996 FORT WAYNE, IN, USA 30 APRIL-2 MAY 1996, NEW YORK, NY, USA,IEEE, US, 30 April 1996 (1996-04-30), pages 479 - 493, XP010201885, ISBN: 0-7803-3658-5
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