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:
May. 29, 2012
Filed:
Oct. 10, 2006
Pranav Dharwadkar, San Jose, CA (US);
Ramanan Subramanian, San Jose, CA (US);
Pranav Dharwadkar, San Jose, CA (US);
Ramanan Subramanian, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
An apparatus for VPN fast convergence in MPLS networks is disclosed. The apparatus comprises a first memory portion, a second memory portion, and a first logic for programming the memory portions. The first memory portion comprises a plurality of first data structures, where each of the plurality of first data structures includes an IGP label and an adjacency identifier that identifies one of a plurality of outgoing interfaces associated with the apparatus, where each IGP label indicates a Label Switched Path (LSP) through a network. The second memory portion comprises a plurality of second data structures, where each of the plurality of second data structures includes a network address identifier, a VPN label associated with the network address identifier, and a pointer that indicates one of the plurality of first data structures in the first memory portion, where each VPN label identifies a VPN that is reachable over the network.