The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2011
Filed:
Apr. 27, 2005
Kenneth A. Moberg, Boulder Creek, CA (US);
Claude A. Cartee, Los Altos, CA (US);
Gregory D. Stovall, San Mateo, CA (US);
David R. Hampton, Mill Valley, CA (US);
Kirk Stewart Lougheed, Atherton, CA (US);
Pedro Marques, San Jose, CA (US);
Timothy D. Kolar, Campbell, CA (US);
Andrew J. Valencia, Vashon, WA (US);
William B. May, Jr., Sunnyvale, CA (US);
Kenneth A. Moberg, Boulder Creek, CA (US);
Claude A. Cartee, Los Altos, CA (US);
Gregory D. Stovall, San Mateo, CA (US);
David R. Hampton, Mill Valley, CA (US);
Kirk Stewart Lougheed, Atherton, CA (US);
Pedro Marques, San Jose, CA (US);
Timothy D. Kolar, Campbell, CA (US);
Andrew J. Valencia, Vashon, WA (US);
William B. May, Jr., Sunnyvale, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In an embodiment, a network router includes plural interfaces and a chain walker which, upon receipt of a first protocol packet in a first interface, processes the packet by walking the packet through a decapsulation chain associated with the interface and the first protocol and an encapsulation chain associated with an identified second interface and identified second protocol. The walker passes the packet to elements of the decapsulation chain to produce a decapsulated packet. The walker passes the decapsulated packet to elements of an encapsulation chain to produce an encapsulated packet. Each chain includes at least one packet-processing element. An element receives the packet from the walker as processed by a previous element, the packet being further processed as appropriate. The walker, upon receipt of the first protocol packet, passes the packet to elements of a demultiplexer chain associated with the first interface to produce a demultiplexed packet.