Automatic protection switching system in a network
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 6, 2004
Grant Date -
N/A
app pub date -
Aug 30, 1999
filing date -
Dec 20, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system and method of automatic protection switching for a network (100) which protect against link or node failure. The protection fibers (119, 121) in the links are pre-arranged into protection cycles so that if a link failure occurs, protection switches in the network nodes (101, 107) connected in the failed link will switch the working fiber data path onto an alternate path comprised of protection fibers (119, 121). Data can then be transmitted through the protection cycle around the fault to reach the node on the other side of the failed link. The same protection fibers (119, 121) can be used to protect a priority connection against center switch failure in a network. The protection switches in each node (101, 107) which connect working fibers (115, 117) to protection fibers (119, 121) are very fast and their settings do not depend on the state of the network.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully