Patent · US Active

Layer-two interworking applied to L2-L3 pseudowires

US7593398B2 · kind B2 · utility

4Cited by

3References

26Claims

0Family size

Assignee

Cisco Technology, Inc. · US

Inventors

Earl Hardin Booth, III · Raleigh, US
W. Scott Wainner · Sterling, US
W. Mark Townsley · Pensacola, US
Christopher Metz · Danville, US

Key dates

Filing date	Sep 8, 2005
Grant date	Sep 22, 2009
Priority date	—
Expiry date	Apr 17, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH04J3/16
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A method and apparatus for performing Layer 2 (L2) interworking is presented. A L2 Protocol Data Unit (PDU) is received at an L2 Switching Entity (SE). The L2 PDU is converted to a normalized Pseudowire (PW) PDU. The normalized PW PDU is then forwarded to a Layer 3 (L3) Routing Entity (RE). The normalized PDU may be in the form of a predetermined L2 protocol or a L2 agnostic protocol.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.