发明名称 METHOD FOR REGISTERING AND UNREGISTERING MEMBERSHIP IN VIRTUAL LOCAL AREA NETWORKS
摘要 <p>A system and method efficiently conveys Virtual Local Area Network (VLAN) membership information across a bridged network. In particular, an intermediate network device, such as a bridge, includes a plurality of ports for interconnecting entities of a computer network. For each port, a Generic Attribute Registration Protocol (GARP) participant is established that has a compact GARP VLAN Registration Protocol (GVRP) application component and a GARP Information Declaration (GID) component. The GID component operates a plurality of state machines to maintain registration state for all of the VLANs of which the port has been made aware. The compact-GVRP application component further includes an encoder/decoder unit that collapses VLAN registration information according to an encoding algorithm. The collapsed VLAN registration information is then loaded into a single compact-GVRP PDU message for transmission from the respective port. The encoder/decoder unit also recovers encoded VLAN registration from received compact-GVRP PDU messages for operating the state machines.</p>
申请公布号 EP1665653(A2) 申请公布日期 2006.06.07
申请号 EP20040784880 申请日期 2004.09.23
申请人 CISCO TECHNOLOGY, INC. 发明人 FINN, NORMAN, W.
分类号 H04L12/46;H04L12/56;(IPC1-7):H04L12/46 主分类号 H04L12/46
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