データストリームフィルタリング装置及び方法

Title:

データストリームフィルタリング装置及び方法

Document Type and Number:

Japanese Patent JP5576959

Kind Code:

B2

Abstract:

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 filter tag 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 only if they carry the stored filter tag. An embodiment of particular interest applies the method to Ethernet frames over a telecommunications access network (including optical or wireless networks), and uses the VLAN tag field to carry the filter tag information.

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Inventors:

Brian Unit
Michael Grant
David Philips
Matthew Allen

Application Number:

JP2013077544A

Publication Date:

August 20, 2014

Filing Date:

April 03, 2013

Export Citation:

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Assignee:

The Limited, Nortel Networks

International Classes:

H04L12/18; H04L12/44; H04L29/06

Attorney, Agent or Firm:

Tadahiko Ito

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