Implicit shared bandwidth protection for fast reroute
CA 2472044 A1 · Owner: Cisco Technology, Inc. · Inventors: Iturralde, Carol; Charny, Anna; Goguen, Robert James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A virtual overlay backup network is established to provide Fast Reroute capability with guaranteed bandwidth protection to a network that employs endto-end circuits such as label switched paths (LSPs). In some implementations backup bandwidth is allocated from an available backup bandwidth pool as , defined herein, available on each link. Complete bandwidth protection may be provided rapidly upon detection of a failure while available backup bandwidth is shared between independent failures. In one embodiment this is , accomplished by provisioning backup tunnels to protect all links and nodes wherein total available backup bandwidth on any link is not exceeded by the requirements of …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed December 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 23, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.