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:
Jul. 02, 2013
Filed:
May. 20, 2010
Xing Yang, Shenzhen, CN;
Feng KE, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method, device, and system for establishing a label switching path (LSP) in fast rerouting (FRR) switching are provided, which can ensure that an ingress point and a merge point (MP) refresh path information in time. The method includes that first messages are respectively sent to an ingress point and an MP on an LSP, where the first messages carry information of holding a path refreshing state, so that the ingress point and MP determine the time of holding the path refreshing state according to the information of holding the path refreshing state; and second messages are respectively sent to the ingress point and the MP in the time of holding the path refreshing state, where the second messages carry information of refreshing a path state, so that the ingress point and MP establish the LSP according to the information of refreshing the path state.