Invention Grant
- Patent Title: Techniques for link redundancy in layer 2 networks
- Patent Title (中): 第2层网络链路冗余技术
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Application No.: US12847779Application Date: 2010-07-30
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Publication No.: US08654630B2Publication Date: 2014-02-18
- Inventor: Tse Yu Lei , Ram Dular Singh
- Applicant: Tse Yu Lei , Ram Dular Singh
- Applicant Address: US CA San Jose
- Assignee: Brocade Communications Systems, Inc.
- Current Assignee: Brocade Communications Systems, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Fountainhead Law Group, PC
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
Techniques for facilitating link redundancy using an enhanced version of Virtual Switch Redundancy Protocol (VSRP), referred to herein as VSRP2. In one set of embodiments, a group of Layer 2 and/or Layer 2/3 devices (switches) can act in concert as a VSRP2 virtual switch. A first switch in the group (a VSRP2 master switch) can forward, via a first link, data traffic to/from a network device in a connected Layer 2 network. A second switch in the group (a VSRP2 backup switch) can block, at a second link, data traffic to/from the same network device. If the first link fails or otherwise becomes unavailable, the VSRP2 backup switch can detect the link failure and begin forwarding, via the second link, data traffic to/from the network device. In this manner, redundancy can be provided at the link level between the VSRP2 virtual switch and the Layer 2 network.
Public/Granted literature
- US20110228669A1 TECHNIQUES FOR LINK REDUNDANCY IN LAYER 2 NETWORKS Public/Granted day:2011-09-22
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