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:
Oct. 29, 2013
Filed:
Nov. 23, 2010
Mohammed I. Tatar, Ottawa, CA;
Garry P. Epps, Sunnyvale, CA (US);
Oded Trainin, Raanana, IL;
Eyal Oren, Raanana, IL;
Cedrik Begin, Ottawa, CA;
Mohammed I. Tatar, Ottawa, CA;
Garry P. Epps, Sunnyvale, CA (US);
Oded Trainin, Raanana, IL;
Eyal Oren, Raanana, IL;
Cedrik Begin, Ottawa, CA;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
An architecture for a line card in a network routing device is provided. The line card architecture provides a bi-directional interface between the routing device and a network, both receiving packets from the network and transmitting the packets to the network through one or more connecting ports. In both the receive and transmit path, packets processing and routing in a multi-stage, parallel pipeline that can operate on several packets at the same time to determine each packet's routing destination is provided. Once a routing destination determination is made, the line card architecture provides for each received packet to be modified to contain new routing information and additional header data to facilitate packet transmission through the switching fabric. The line card architecture further provides for the use of bandwidth management techniques in order to buffer and enqueue each packet for transmission through the switching fabric to a corresponding destination port. The transmit path of the line card architecture further incorporates additional features for treatment and replication of multicast packets.