System and method for registering and unregistering membership in virtual local area networks
CA 2534589 C · Owner: Cisco Technology, Inc. · Inventors: Finn, Norman W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method efficiently conveys Virtual Local Area Network (VLAN) membership information across a bridged network. In particular an , intermediate network device, such as a bridge includes a plurality of ports , for interconnecting entities s of a computer network. For each port a Generic , Attribute Registration Protocol (GARP) participant is established that has a compact GARP VLAN Registration Protocol (GVRP) application component and a GARP Information Declaration (GID) component. The GID component operates a plurality of state machines to maintain registration state for all of the VLANs of which the port has been made aware. The compact- GVRP application component further …
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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 September 23, 2004 and granted July 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 23, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 23, 2026.
- 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
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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.