Invention Grant
US08295278B2 Systems and methods for pseudowire-in-pseudowire to transport pseudowire payload across packet switched networks
有权
用于在分组交换网络中传输伪线有效载荷的伪线伪线的系统和方法
- Patent Title: Systems and methods for pseudowire-in-pseudowire to transport pseudowire payload across packet switched networks
- Patent Title (中): 用于在分组交换网络中传输伪线有效载荷的伪线伪线的系统和方法
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Application No.: US11958656Application Date: 2007-12-18
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Publication No.: US08295278B2Publication Date: 2012-10-23
- Inventor: Himanshu Shah , Mark Libby , David Parks
- Applicant: Himanshu Shah , Mark Libby , David Parks
- Applicant Address: US MD Hanover
- Assignee: Ciena Corporation
- Current Assignee: Ciena Corporation
- Current Assignee Address: US MD Hanover
- Agency: Clements Bernard PLLC
- Agent Christopher L. Bernard; Lawrence A. Baratta, Jr.
- Main IPC: H04L12/28
- IPC: H04L12/28

Abstract:
The present invention provides systems and methods which create an infrastructure/transport Pseudowire (PW) a priori between two Provider Edge (PE) devices. Accordingly, other PWs can be mapped to this transport PW. In an exemplary application, the transport PW (which is a MS-PW by itself) can start and end between two Switching Provider Edge (S-PE) devices and span across multiple S-PEs in between. In another exemplary application, the transport PW terminates between two Terminating Provider Edge (T-PE) devices spanning across all S-PEs in between. In a further exemplary application, the transport PW can start at a S-PE or T-PE and terminate at a T-PE or S-PE, respectively. The placement of the endpoints of the transport PW (on two PEs) determines the number of intervening S-PEs that benefit from this application.
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