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. 13, 2014
Filed:
Sep. 14, 2010
Bin William Hong, San Jose, CA (US);
Apurva Mehta, Cupertino, CA (US);
Ramanarayanan Ramakrishnan, San Jose, CA (US);
Huaxiang Sun, Sunnyvale, CA (US);
Prakash Kamath, San Jose, CA (US);
Bin William Hong, San Jose, CA (US);
Apurva Mehta, Cupertino, CA (US);
Ramanarayanan Ramakrishnan, San Jose, CA (US);
Huaxiang Sun, Sunnyvale, CA (US);
Prakash Kamath, San Jose, CA (US);
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
Techniques are described for selecting an alternate path for end-to-end service data traffic that traverses multi-homed routers that provide the service to customer networks. For example, as described herein, a router that is a member of a first multi-homing set connected to a layer two (L2) network with one of a plurality of first access links. The router advertises a status of one of the first access links to a second multi-homing set connected to the first multi-homing set with one or more core links. A core link database stores advertised status information for access links of the first and second multi-homing set. Upon a link failure, a path selector selects a core link to transport service data traffic and directs a switch module to switch to active a status a first access links that connects to a router in the first multi-homing set connected to the selected core link.