发明授权
- 专利标题： Loop mitigation mechanism for ethernet networks
- 专利标题（中）： 以太网络环路缓解机制
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申请号： US12146345申请日： 2008-06-25
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公开(公告)号： US08681641B1公开(公告)日： 2014-03-25
- 发明人: Ali Sajassi , Norman Finn , Francois Tallet
- 申请人： Ali Sajassi , Norman Finn , Francois Tallet
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc.
- 当前专利权人： Cisco Technology, Inc.
- 当前专利权人地址： US CA San Jose
- 主分类号： H04J1/16
- IPC分类号： H04J1/16 ; H04L12/28 ; H04L12/56 ; H04J3/14 ; H04L1/00
摘要：
A technique is provided for mitigating loops in Ethernet networks. A first port in an Ethernet device receives an Ethernet frame. The frame includes a source identifier, a destination identifier, and a Virtual Local Area Network Identifier (VLAN ID). According to various embodiments, the VLAN ID (VID) has the encoding of both a community group as well as a source bridge ID. A VID database is accessed using the destination identifier and the VID to determine whether the first port has ingress enabled. A filtering database is accessed to determine an egress port for forwarding the Ethernet frame.
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