Is a
Patent attributes
Patent Applicant
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Guo Qiang Q. Wang0
Chenjiang Hu0
Kent E. Felske0
Liangyu L. Jia0
Wenfeng Chen0
Date of Patent
May 31, 2005
0Patent Application Number
096033550
Date Filed
June 26, 2000
0Patent Citations Received
Patent Primary Examiner
Patent abstract
In a packet-switched network having a plurality of nodes interconnected by links, pre-defined protection paths provide protection of a selected plurality of links. Adjacent nodes connected by a protected link are adapted to detect a failure of the protected link, to encapsulate packets within tunnel packets, to differentiate between tunnel packets and non-tunnel packets and to exchange the tunnel packets via a protection path rather than via the failed link. This results in faster automatic protection switching of packet-based traffic. The invention is particularly suited to an Internet Protocol network.
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