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Data stream filtering apparatus and method

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专利名称:Data stream filtering apparatus and method发明人:Brian Unitt,Michael Grant,David

Phillips,Matthew Allen

申请号:US10107876申请日:20020327公开号:US07272137B2公开日:20070918

专利附图:

摘要:A method and apparatus for filtering data packets in a shared-medium or point-to-multipoint communications network. A filter unit is sent a data packet carrying a filtertag value in a packet addressed to the filter unit. The value is stored in the filter unit and

subsequently received packets not addressed to the filter unit itself are forwarded onlyif they carry the stored filter tag. An embodiment of particular interest applies themethod to Ethemet frames over a telecommunications access network (including opticalor wireless networks), and uses the VLAN tag field to carry the filter tag information.

申请人:Brian Unitt,Michael Grant,David Phillips,Matthew Allen

地址:Bishops Stortford GB,Bishops Stortford GB,Bishops Stortford GB,Old Harlow GB

国籍:GB,GB,GB,GB

代理机构:Barnes & Thornburg LLP

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