Invention Grant
US08811154B2 Packet forwarding system, packet forwarding device, proxy device, computer readable medium storing program, and control method of packet forwarding device
有权
分组转发系统，分组转发设备，代理设备，计算机可读介质存储程序，以及分组转发设备的控制方法
- Patent Title: Packet forwarding system, packet forwarding device, proxy device, computer readable medium storing program, and control method of packet forwarding device
- Patent Title (中): 分组转发系统，分组转发设备，代理设备，计算机可读介质存储程序，以及分组转发设备的控制方法
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Application No.: US12687739Application Date: 2010-01-14
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Publication No.: US08811154B2Publication Date: 2014-08-19
- Inventor: Kazushi Kubota
- Applicant: Kazushi Kubota
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2009-009492 20090120
- Main IPC: G01R31/08
- IPC: G01R31/08 ; H04L12/56 ; H04W40/00 ; H04W84/20 ; H04L12/26 ; H04W24/08 ; H04W40/04
Abstract:
A first packet forwarding device is able to form a redundancy group with another packet forwarding device, and is configured to switch master and backup operation with the another packet forwarding device in a complementary manner. The first packet forwarding device is further configured to switch a first operation mode and a second operation mode in the backup operation, the first operation mode monitoring a control packet transmitted regarding the redundancy group from the another packet forwarding device that performs the master operation, and the second operation mode not monitoring the control packet. A proxy device is configured to monitor the control packet on behalf of the first packet forwarding device when the first packet forwarding device is in the second operation mode, and to control switching between the first and second operation modes of the first packet forwarding device based on monitor result of the control packet.
Public/Granted literature
Information query
