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    • 14. 发明申请
    • SYSTEMS AND METHODS FOR PSEUDOWIRE-IN-PSEUDOWIRE TO TRANSPORT PSEUDOWIRE PAYLOAD ACROSS PACKET SWITCHED NETWORKS
    • 通过分组交换网络,PSEUDOWIR-IN-PSEUDOWIRE运输PSEUDOWIRE PAYLOAD的系统和方法
    • US20090154453A1
    • 2009-06-18
    • US11958656
    • 2007-12-18
    • Himanshu ShahMark LibbyDavid Parks
    • Himanshu ShahMark LibbyDavid Parks
    • H04L12/56
    • H04L12/4633
    • 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.
    • 本发明提供了在两个提供商边缘(PE)设备之间先验地创建基础设施/传输伪线(PW)的系统和方法。 因此,可以将其他PW映射到该传输PW。 在示例性应用中,传输PW(其自身是MS-PW)可以在两个交换提供商边缘(S-PE)设备之间开始和结束,跨越多个S-PE之间。 在另一示例性应用中,传输PW终止于跨越其间的所有S-PE的两个终端提供商边缘(T-PE)设备。 在另一示例性应用中,传输PW可以在S-PE或T-PE上启动并分别终止在T-PE或S-PE。 传输PW的端点(在两个PE上)的位置决定了受益于该应用的中间S-PE的数量。