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1. 发明申请

WO2008130620A4 FAILURE NOTIFICATION IN A NETWORK HAVING SERIALLY CONNECTED NODES 审中-公开
标题翻译：在具有串行连接节点的网络中的失败通知
公开(公告)号：WO2008130620A4
公开(公告)日：2008-12-31
申请号：PCT/US2008005004
申请日：2008-04-18
申请人： NORTEL NETWORKS LTD , ALLAN DAVID , BETTS MALCOLM , BRAGG NIGEL , ASHWOOD SMITH PETER , UNBEHAGEN PAUL
发明人： ALLAN DAVID , BETTS MALCOLM , BRAGG NIGEL , ASHWOOD SMITH PETER , UNBEHAGEN PAUL
IPC分类号： H04L12/40 , H04L12/28
CPC分类号： H04L12/437 , H04L45/02 , H04L45/123 , H04L45/16 , H04L45/22 , H04L45/28 , H04L45/32
摘要： Multicast capabilities of a link state protocol controlled network are used to accelerate the flooding advertisement of topology change notifications within portions of the network. This flooding mechanism may be particularly efficient in a network with a large number of two-connected nodes such as a ring network architecture. A control plane specific multicast group address is used when flooding topology change notifications, and a process such as reverse path forwarding check is used as an additional control on forwarding of the notification to prevent looping of control plane packets. Two-connected nodes insert a forwarding entry into their FIB to enable frames containing the control message to be forwarded via the data plane on to the downstream node so that propagation of the control message along a chain of two-connected nodes may occur at data plane speeds.
摘要翻译：使用链路状态协议控制的网络的多播能力来加速网络的部分内的拓扑改变通知的泛洪广告。这种泛洪机制在具有大量双连接节点（例如环形网络架构）的网络中可能特别有效。当洪泛式拓扑变化通知时使用控制层面特定的组播组地址，并且诸如反向路径转发检查的处理被用作对通知的转发的附加控制以防止控制面分组的循环。两个连接的节点将转发条目插入到其FIB中，以使得包含控制消息的帧能够经由数据平面被转发到下游节点，使得控制消息沿着两个连接的节点链的传播可以发生在数据平面速度。

2. 发明申请

WO2007129056A3 INTERWORKING POINT TO POINT PROTOCOL FOR DIGITAL SUBSCRIBER LINE ACCESS WITH ETHERNET CONNECTIONS IN THE AGGREGATION NETWORK 审中-公开
标题翻译：与聚合网络中以太网连接的数字订户线访问点协议的交互点
公开(公告)号：WO2007129056A3
公开(公告)日：2008-01-03
申请号：PCT/GB2007001628
申请日：2007-05-03
申请人： NORTEL NETWORKS LTD , ALLAN DAVID , BRAGG NIGEL
发明人： ALLAN DAVID , BRAGG NIGEL
IPC分类号： H04L12/28 , H04L29/12
CPC分类号： H04L29/1233 , H04L12/4625 , H04L29/12839 , H04L61/25 , H04L61/6022
摘要： Methods and apparatus for enabling the establishment of a Point to Point Protocol (PPP) session to a broadband network gateway through an access node of a packet-switched wireline aggregation network and methods and apparatus for enabling Ethernet frame data to be transported through an access node of packet-switched wireline aggregation network between a remote gateway a broadband network gateway are provided. In one aspect conventional PPP over Ethernet (PPPoE) BNG discovery using broadcast PADI messages is replaced by configured unicast PADI messages to specified BNGs over Ethernet Connections. In other aspects Ethernet data is transported through the access node by swapping the upstream source MAC address with the MAC address of the access node to shield the provider network from customer MAC addresses, and swapping the downstream destination MAC address to the MAC address of the remote gateway by looking up the MAC address of the remote gateway in a mapping of PPPoE Session ID to MAC address of the remote gateway.
摘要翻译：能够通过分组交换有线聚合网络的接入节点建立到宽带网络网关的点到点协议（PPP）会话的方法和装置，以及用于使以太网帧数据能够通过接入节点传输的方法和装置在远程网关提供宽带网关之间的分组交换有线聚合网络。在一个方面，使用广播PADI消息的常规PPP over Ethernet（PPPoE）BNG发现被配置的通过以太网连接指定的BNG的单播PADI消息替换。在其他方面，以太网数据通过接入节点通过交换上游源MAC地址与接入节点的MAC地址进行传输，以将提供商网络与客户MAC地址隔离，并将下游目的MAC地址交换到远端的MAC地址网关通过在PPPoE会话ID映射到远程网关的MAC地址的映射中查找远程网关的MAC地址。

3. 发明申请

WO03007556A3 ROUTING FOR A COMMUNICATIONS NETWORK 审中-公开
标题翻译：通信网络的路由
公开(公告)号：WO03007556A3
公开(公告)日：2003-08-21
申请号：PCT/GB0203234
申请日：2002-07-12
申请人： NORTEL NETWORKS LTD , NORTEL NETWORKS UK LTD
发明人： BRAGG NIGEL
IPC分类号： H04L12/56
CPC分类号： H04L45/24 , H04L45/00 , H04L45/02 , H04L45/04 , H04L45/22
摘要： For routing in a communications network, alternate paths to a destination are aggregated into a single composite route, prior to onward propagation of the route. Ideally, aggregation is performed at each point of route convergence in the network. Consequently, failure in only one of the paths does not then require that the composite route be withdrawn, and thus visibility of and reaction to the fault is restricted to parts of the network directly affected. The method is particularly applicable to border gateway protocols employed between Autonomous Systems as in, for example, the Internet.
摘要翻译：为了在通信网络中进行路由选择，到目的地的备用路径被聚合成单个复合路由，然后再继续传播路由。理想情况下，聚合在网络中的每个路由收敛点执行。因此，只有其中一条路径出现故障并不需要撤消复合路线，因此故障的可见性和对故障的反应仅限于直接影响网络的部分。该方法特别适用于例如在互联网中的自治系统之间使用的边界网关协议。

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