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. 21, 2014
Filed:
Feb. 27, 2012
Pradosh Mohapatra, Fremont, CA (US);
Neeraj Malhotra, Los Gatos, CA (US);
Clarence Filsfils, Brussels, BE;
Pradosh Mohapatra, Fremont, CA (US);
Neeraj Malhotra, Los Gatos, CA (US);
Clarence Filsfils, Brussels, BE;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a packet switching device is configured to perform a lookup operation, based on a particular per-CE label (per-Customer Edge label) included in a particular packet, in a forwarding data structure for identifying forwarding information for the particular packet. When a corresponding outbound path is unavailable, a per-VRF (per-Virtual Routing and Forwarding) lookup operation in a VRF data structure, identified based on the particular per-CE label, based on a destination address of a packet encapsulated within the received packet. A corresponding packet is forwarded based on the results of the VRF lookup operation. In one embodiment, a set of more than one egress line card is identified based on this lookup operation, and packets of different routes are load balanced among egress line cards in this identified set of egress line cards.