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1.发明申请METHOD AND APPARATUS FOR EXCHANGING ROUTING INFORMATION AND ESTABLISHING CONNECTIVITY ACROSS MULTIPLE NETWORK AREAS 失效交换路由信息的方法和装置，并建立多个网络区域的连通性公开(公告)号：US20100020797A1
公开(公告)日：2010-01-28
申请号：US12575190
申请日：2009-10-07
IPC分类号： H04L12/56
CPC分类号： H04L12/462 , H04L12/4641 , H04L45/02 , H04L45/026 , H04L45/04 , H04L45/16 , H04L45/18 , H04L45/66
摘要： A method ensures that multicast packets follow the same loop-free path followed by unicast packets in a packet communication network. The communication network includes at least one first area interconnected through at least one area border node (“ABN”) to a second area. Each ABN has a first level port connected to each first area and a second level port connected to the second area. Each multicast packet forwarded includes a header having a root-id identifying a root of a multicast tree. A data packet is received at an ABN. Responsive to receiving a multicast packet at a second level port of an area border node, the root-id of the multicast packet is examined and if the multicast packet is to be forwarded over at least one of the first level ports, a different root-id is substituted into the packet before the packet is forwarded over the first level port.
摘要翻译： 一种方法可以确保组播数据包遵循相同的无循环路径，随后是分组通信网络中的单播数据包。 通信网络包括通过至少一个区域边界节点（“ABN”）互连到第二区域的至少一个第一区域。 每个ABN具有连接到每个第一区域的第一级端口和连接到第二区域的第二级端口。 转发的每个组播数据包包括一个具有标识多播树根的根ID的报头。 在ABN处接收数据分组。 响应于在区域边界节点的第二级端口处接收到组播数据包，检查组播数据包的根ID，如果要通过至少一个第一级端口转发组播数据包， 在通过第一级端口转发数据包之前，将id替换为数据包。
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2.发明申请METHOD AND APPARATUS FOR EXCHANGING ROUTING INFORMATION AND ESTABLISHING CONNECTIVITY ACROSS MULTIPLE NETWORK AREAS 审中-公开交换路由信息的方法和装置，并建立多个网络区域的连通性公开(公告)号：US20120300774A1
公开(公告)日：2012-11-29
申请号：US13567653
申请日：2012-08-06
IPC分类号： H04L12/56
CPC分类号： H04L12/462 , H04L12/4641 , H04L45/02 , H04L45/026 , H04L45/04 , H04L45/16 , H04L45/18 , H04L45/66
摘要： A method ensures that multicast packets follow the same loop-free path followed by unicast packets in a packet communication network. The communication network includes at least one first area interconnected through at least one area border node (“ABN”) to a second area. Each ABN has a first level port connected to each first area and a second level port connected to the second area. Each multicast packet forwarded includes a header having a root-id identifying a root of a multicast tree. A data packet is received at an ABN. Responsive to receiving a multicast packet at a second level port of an area border node, the root-id of the multicast packet is examined and if the multicast packet is to be forwarded over at least one of the first level ports, a different root-id is substituted into the packet before the packet is forwarded over the first level port.
摘要翻译： 一种方法可以确保组播数据包遵循相同的无循环路径，随后是分组通信网络中的单播数据包。 通信网络包括通过至少一个区域边界节点（ABN）互连到第二区域的至少一个第一区域。 每个ABN具有连接到每个第一区域的第一级端口和连接到第二区域的第二级端口。 转发的每个组播数据包包括一个具有标识多播树根的根ID的报头。 在ABN处接收数据分组。 响应于在区域边界节点的第二级端口处接收到组播数据包，检查组播数据包的根ID，如果要通过至少一个第一级端口转发组播数据包， 在通过第一级端口转发数据包之前，将id替换为数据包。
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