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    RESILIENT ATTACHMENT TO PROVIDER LINK STATE BRIDGING (PLSB) NETWORKS
    2.
    发明公开
    RESILIENT ATTACHMENT TO PROVIDER LINK STATE BRIDGING (PLSB) NETWORKS 审中-公开
    灵活的安装FOR提供商链路STATUSÜBERBRÜCKUNGS-（PLSB-）网络

    公开(公告)号：EP2359532A4

    公开(公告)日：2013-06-05

    申请号：EP09832755

    申请日：2009-11-24

    申请人： NORTEL NETWORKS LTD

    发明人： CASEY LIAM ,  ALLAN DAVID ,  BRAGG NIGEL L ,  CHIABAUT JEROME ,  ASHWOOD SMITH PETER

    IPC分类号： H04L12/24 ,  H04L29/10

    CPC分类号： H04L41/0654 ,  H04L12/66 ,  H04L45/02 ,  H04L45/22 ,  H04L45/245 ,  H04L45/48 ,  H04L45/74 ,  H04L47/41 ,  H04L2212/00 ,  Y02D50/30

    摘要： A method system for interfacing a client system in a first network domain with a Provider Link State Bridging (PLSB) network domain. At least two Backbone Edge Bridges (BEBs) of the PLSB domain 20 are provided. Each BEB is an end-point of a connection in the first network domain to the client system and an end-point of at least a unicast path defined within the PLSB domain 20. An inter-node trunk is provided in the PLSB domain 20 for interconnecting the at least two BEBs. A phantom node is defined in the PLSB domain 20. The phantom node has a unique address in the PLSB domain 20 and is notionally located on the inter-node trunk one hop from each of the BEBs. Each of the BEBs is configured such that: an ingress packet received from the client system via the connection in the first network domain is forwarded through a path notionally rooted at the phantom node; and an egress subscriber packet destined for the client system is forwarded to the client system through the connection in the first network domain.