Invention Grant
US08817782B2 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
通过在单个PIM域中建立跨SPB网络的虚拟PIM邻接，在SPB网络中路由组播数据的方法
- Patent Title: Method to route multicast data in SPB network by establishing the virtual PIM adjacency across the SPB networks in a single PIM domain
- Patent Title (中): 通过在单个PIM域中建立跨SPB网络的虚拟PIM邻接，在SPB网络中路由组播数据的方法
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Application No.: US13247037Application Date: 2011-09-28
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Publication No.: US08817782B2Publication Date: 2014-08-26
- Inventor: Rama S. Appalla , Gautam Khera , Julie McGray
- Applicant: Rama S. Appalla , Gautam Khera , Julie McGray
- Applicant Address: US NJ Basking Ridge
- Assignee: Avaya Inc.
- Current Assignee: Avaya Inc.
- Current Assignee Address: US NJ Basking Ridge
- Agency: Anderson Gorecki & Rouille LLP
- Main IPC: H04L12/28
- IPC: H04L12/28
Abstract:
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.
Public/Granted literature
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