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.

Date of Patent:
Nov. 01, 2016

Filed:

Feb. 04, 2014
Applicant:

Juniper Networks, Inc., Sunnyvale, CA (US);

Inventors:

Pushpasis Sarkar, Bangalore, IN;

Harish Raghuveer, Bangalore, IN;

Shraddha Hegde, Bangalore, IN;

Assignee:

Juniper Networks, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/733 (2013.01); H04L 12/803 (2013.01); H04L 12/24 (2006.01); H04W 88/06 (2009.01);
U.S. Cl.
CPC ...
H04L 47/122 (2013.01); H04L 41/0663 (2013.01); H04L 45/122 (2013.01); H04W 88/06 (2013.01);
Abstract

In one example, a network device determines a set of candidate loop-free alternate (LFA) next hops for forwarding network traffic from the network device to a multi-homed network by taking into account a first cost associated with a second path from a first border router to the multi-homed network and a second cost associated with a second border router to the multi-homed network, wherein the multi-homed network is external to an interior routing domain in which the network device is located. The network device selects an LFA next hop from the set of candidate LFA next hops, to be stored as an alternate next hop for forwarding network traffic to the multi-homed network, and updates forwarding information stored by the network device to install the selected LFA next hop as the alternate next hop for forwarding network traffic from the network device to the multi-horned network.


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