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    Method to route multicast data in SPB network by establishing the virtual PIM adjacency across the SPB networks in a single PIM domain
    2.
    发明公开
    Method to route multicast data in SPB network by establishing the virtual PIM adjacency across the SPB networks in a single PIM domain 有权
    使用虚拟生产PIM-附近在一个单域PIM在SPB网络中路由多播数据的方法

    公开(公告)号：EP2575308A1

    公开(公告)日：2013-04-03

    申请号：EP12185544.9

    申请日：2012-09-21

    申请人： Avaya Inc.

    发明人： Appalla, Rama S. ,  Khera, Gautam ,  McGray, Julie

    IPC分类号： H04L12/761 ,  H04L12/46

    CPC分类号： H04L45/16 ,  H04L12/462

    摘要： Techniques disclosed herein include systems and methods that extend Protocol Independent Multicast (PIM) protocols to Shortest Path Bridging (SPB) technology. This includes connecting an IP multicast domain across an SPB network. SPB edge routers, also known as Backbone Edge Bridges, form virtual adjacencies with each other. As such, SPB edge routers maintain such PIM adjacency without sending Hello messages. Backbone Edge Bridges (BEBs) are discovered using null Intermediate System To Intermediate System (IS-IS) Internet Protocol Multicast (IPMC) type-length-value (TLV) control messages. Each PIM-enabled BEB records other PIM-enabled BEBs as an adjacent PIM-router in response to receiving a NULL IPMC TLV from those BEBs. Accordingly, PIM-enabled BEBs form a full mesh virtual adjacency between each other and can thereby encapsulate PIM control messages sent and received between two access networks connected to the SPB network.

    摘要翻译： 游离缺失中盘的技术包括系统和方法做了扩展协议无关组播（PIM）协议，最短路径桥接（SPB）技术。 这包括连接到IP多播域跨越至SPB网络。 SPB边缘路由器，所以称为骨干边缘桥，形成海誓山盟虚拟邻接。 为供试，SPB边缘路由器维护检查PIM邻接而不发送Hello消息。 骨干边缘桥（BEBS）是使用空中间系统到中间系统（IS-IS）的互联网协议多播（IPMC）类型 - 长度 - 值（TLV）的控制消息发现的。 每个启用PIM-BEB记录启用PIM其他的BEB的相邻路由器的PIM响应来自那些的BEB接收空IPMC TLV。 因此，使能PIM的BEB形成海誓山盟之间的全网状虚拟邻接并且由此可以封装发送和连接到SPB网络的两个接入网络之间接收的PIM控制消息。