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Canadian application, no grantCanada

Switching device and method for traffic policing over a network

CA 2376548 A1 · Owner: Nortel Networks Limited · Inventors: Mangin, James L.; Munshi, Sanjay; Kalkunte, Mohan V.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A flow of information over a network is controlled by a policing function placed at a data link layer of the network. For a full-duplex architecture an , accumulated count value for each packet of information received as input by a switching device is ascertained during a predetermined interval. The policing function at a data link layer determines if the accumulated count value has exceeded an interval bit rate based on a transmission rate set by a traffic contract at a networking layer higher than the data link layer. In response to the accumulated count value exceeding the interval bit rate the switching , device sends a PAUSE frame to halt transmission of the information. The …

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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 June 9, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 9, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 9, 2000
GrantedNo grant recorded
Term endedJune 9, 2020
Patent numberCA 2376548 A1
Classification (IPC)H04L12/44 +1 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJune 9, 2000Term endedJune 9, 2020

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.