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:
May. 17, 2016

Filed:

Oct. 30, 2013
Applicant:

Hangzhou H3c Technologies Co., Ltd., Hangzhou, CN;

Inventor:

Changwang Lin, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 29/08 (2006.01); H04L 12/64 (2006.01); H04L 12/751 (2013.01); H04L 12/721 (2013.01); H04L 12/715 (2013.01);
U.S. Cl.
CPC ...
H04L 67/141 (2013.01); H04L 12/6418 (2013.01); H04L 45/02 (2013.01); H04L 45/04 (2013.01); H04L 45/12 (2013.01); H04L 45/32 (2013.01); H04L 67/10 (2013.01);
Abstract

According to an example, virtual systems are established in a same Intermediate System to Intermediate System (IS-IS) process as a local IS-IS system. Each local IS-IS system and virtual system can enable a maximum of M IS-IS interfaces. A system is selected for each IS-IS interface from the local IS-IS system and the virtual systems. A virtual neighbor connection is established between the local IS-IS system and each of the virtual systems, and a route cost of the neighbor connection is 0. For an IS-IS interface connected to a remote device, a packet is sent for establishing a neighbor connection with the remote device, the packet carrying a system ID of the IS-IS interface.


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