Invention Grant
- Patent Title: End-to-end hitless protection in packet switched networks
- Patent Title (中): 分组交换网络中的端到端无限保护
-
Application No.: US14307573Application Date: 2014-06-18
-
Publication No.: US09369409B2Publication Date: 2016-06-14
- Inventor: Junqiang Hu , Yoshinobu Ooto , Kazuo Takagi , Yoshiaki Aono , Ting Wang
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: JP
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP
- Agent Joseph Kolodka
- Main IPC: H04L12/939
- IPC: H04L12/939 ; H04L12/721 ; H04L12/735 ; H04L12/703 ; H04L12/723 ; H04L12/801

Abstract:
A method and system are described for providing hitless protection in a packet switched network having source nodes and destination nodes. The method includes enabling a working path and a protecting path between the source and destination nodes. The working path is non-overlapping with respect to the protecting path. The method further includes replicating traffic in a given one of the source nodes to generate replicated traffic. The method also includes forwarding the traffic and the replicated traffic through a working path and a protecting path, respectively, from the given one of the source nodes to a particular one of the destination nodes. The method additionally includes delivering a hitless-protected service in the particular one of the destination nodes by selecting traffic packets received from either the working path or the protecting path.
Public/Granted literature
- US20150043330A1 END-TO-END HITLESS PROTECTION IN PACKET SWITCHED NETWORKS Public/Granted day:2015-02-12
Information query