发明公开
EP2575308A1 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
- 专利标题： Method to route multicast data in SPB network by establishing the virtual PIM adjacency across the SPB networks in a single PIM domain
- 专利标题（中）： 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
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申请号： EP12185544.9申请日： 2012-09-21
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公开(公告)号： EP2575308A1公开(公告)日： 2013-04-03
- 发明人: Appalla, Rama S. , Khera, Gautam , McGray, Julie
- 申请人： Avaya Inc.
- 申请人地址： 211 Mount Airy Road Basking Ridge New Jersey, DE 07920-2332 US
- 专利权人： Avaya Inc.
- 当前专利权人： Avaya Inc.
- 当前专利权人地址： 211 Mount Airy Road Basking Ridge New Jersey, DE 07920-2332 US
- 代理机构： Williams, David John
- 优先权： US201113247037 20110928
- 主分类号： H04L12/761
- IPC分类号： H04L12/761 ; H04L12/46
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.
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