发明申请
US20120287936A1 EFFICIENT SOFTWARE-BASED PRIVATE VLAN SOLUTION FOR DISTRIBUTED VIRTUAL SWITCHES
有权
高效的基于软件的私有VLAN解决方案,用于分布式虚拟交换机
- 专利标题: EFFICIENT SOFTWARE-BASED PRIVATE VLAN SOLUTION FOR DISTRIBUTED VIRTUAL SWITCHES
- 专利标题(中): 高效的基于软件的私有VLAN解决方案,用于分布式虚拟交换机
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申请号: US13107554申请日: 2011-05-13
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公开(公告)号: US20120287936A1公开(公告)日: 2012-11-15
- 发明人: Amitabha Biswas , John Buswell , Dayavanti G. Kamath , Jayakrishna Kidambi , Vijoy Pandey , Dorit Rond
- 申请人: Amitabha Biswas , John Buswell , Dayavanti G. Kamath , Jayakrishna Kidambi , Vijoy Pandey , Dorit Rond
- 申请人地址: US NY ARMONK
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY ARMONK
- 主分类号: H04L12/56
- IPC分类号: H04L12/56
摘要:
Packet processing logic of a host system's virtualization manager detects packets on the ingress or the egress path to/from a virtual port having three bitmap arrays for processing packets within a virtual local area network (VLAN). The logic checks the VLAN identifier (VID) of the packet to determine, based on an offset position within the corresponding bitmap array, whether the port supports the VLAN. Both the ingress array offset position and egress array offset positions correspond to the value of the VID, and are set within the specific bitmap array during configuration of the VLAN on the port. When the VLAN is supported by the port, the logic enables the packet to be processed by the port. Otherwise, the logic discards the packet. A strip bitmap array indicates when a packet's VID should be removed prior to forwarding the packet on the egress of a port (or destination port).
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