公开(公告)号：EP1766856A1

公开(公告)日：2007-03-28

申请号：EP05761908.2

申请日：2005-06-28

申请人： Nortel Networks Limited

发明人： OULD-BRAHIM, Hamid ,  HACHE, Elizabeth ,  SUGIMOTO, Jeffrey ,  WRIGHT, Gregory

IPC分类号： H04L12/12 ,  H04L12/66

CPC分类号： H04L45/50 ,  H04L12/4633 ,  H04L29/12009 ,  H04L29/12028 ,  H04L29/12801 ,  H04L29/12877 ,  H04L45/10 ,  H04L45/502 ,  H04L61/103 ,  H04L61/106 ,  H04L61/6004 ,  H04L61/604

摘要： An architecture for providing service mediation in a network having a Layer-2 domain and an MPLS domain includes at least one Layer-2 provider edge device in communication with a first customer site; at least one Layer-2 edge device in communication with the Layer-2 provider edge device; at least one MPLS mediation edge device in communication with the Layer-2 edge device; and at least one MPLS provider edge device in communication with both the MPLS mediation edge device and a second customer site. An end-to-end connection is established using native Layer-2 signaling, if any, in the Layer-2 domain and PWE3 signaling protocols in the MPLS domain. The MPLS mediation edge device resolves associations between Layer-2 edge devices and MPLS provider edge devices. The service is 'mediated' in the sense that native Layer-2 signaling is terminated at the MME, and a new domain, i.e., pseudowire, is established across the MPLS domain.