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. 23, 2007
Filed:
Feb. 22, 2001
Maruthingendra P. Rachepalli, Sunnyvale, CA (US);
Ramesh Sivakolundu, Saratoga, CA (US);
Kenneth H. Potter, Raleigh, NC (US);
Guy C. Fedorkow, Bedford, MA (US);
Gary S. Muntz, Lexington, MA (US);
Maruthingendra P. Rachepalli, Sunnyvale, CA (US);
Ramesh Sivakolundu, Saratoga, CA (US);
Kenneth H. Potter, Raleigh, NC (US);
Guy C. Fedorkow, Bedford, MA (US);
Gary S. Muntz, Lexington, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
An aggregation router architecture comprises a plurality of line cards coupled to at least one performance routing engine (PRE) via an interconnect system. The line cards include input cards having input ports coupled to subscribers and at least one trunk card configured to aggregate packets received from the subscriber inputs over at least one output port. The PRE performs packet forwarding and routing operations, along with quality of service functions for the packets received from each input line card over the interconnect system. The interconnect system comprises a plurality of high-speed unidirectional (i.e., point-to-point) links coupling the PRE to each line card. The point-to-point links couple the line cards to a novel logic circuit of the PRE that is configured to interface the line cards to a packet buffer and a forwarding engine of the PRE.