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1. 发明申请

WO2011101758A1 OPTIMIZED FAST RE-ROUTE IN MPLS RING TOPOLOGIES 审中-公开
标题翻译： MPLS环形拓扑中优化的快速路由
公开(公告)号：WO2011101758A1
公开(公告)日：2011-08-25
申请号：PCT/IB2011/050351
申请日：2011-01-27
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KINI, Sriganesh , RAPOPORT, Marc , LIU, Autumn
发明人： KINI, Sriganesh , RAPOPORT, Marc , LIU, Autumn
IPC分类号： H04L12/56 , H04L12/437
CPC分类号： H04L45/00 , H04L12/437 , H04L41/0654 , H04L45/1283 , H04L45/22 , H04L45/28 , H04L45/50 , H04L47/122 , H04L47/127
摘要： A method performed on a network element employing Multi-protocol Label Switching (MPLS) to optimize bandwidth in a ring topology network including a back- up Label Switch Path (LSP) for a protected LSP by re-routing traffic onto the back-up LSP to avoid shared links between the protected LSP and back-up LSP, including receiving a first labeled packet from another label switch router (LSR) in the back-up LSP, the first labeled packet indicating that a protection switch of data is to be performed from the protected LSP to the back-up LSP, determining whether a shared link in the ring topology network exists between the protected LSP and the back-up LSP, rerouting traffic for the protected LSP onto an optimized back-up LSP to remove the shared link, receiving a second labeled packet indicating that a protection switch of data is to be performed, and restoring routing of the traffic onto the protected LSP in response to receiving the second labeled packet.
摘要翻译：一种在采用多协议标签交换（MPLS）的网元上执行的一种方法，用于通过将流量重新路由到备份LSP上来优化环路拓扑网络中的带宽，包括用于受保护LSP的备用标签交换路径（LSP）为了避免受保护的LSP和备份LSP之间的共享链路，包括从备用LSP中的另一个标签交换路由器（LSR）接收第一个标记的分组，第一个标记的分组指示要执行数据的保护切换从受保护的LSP到备用LSP，确定环路拓扑网络中的共享链路是否存在于受保护的LSP和备用LSP之间，将受保护的LSP的流量重新路由到优化的备份LSP上，以去除共享链路，接收指示要执行数据保护交换机的第二标记分组，以及响应于接收到第二标记分组，将业务路由恢复到受保护的LSP上。

2. 发明申请

WO2011101756A1 FAST LSP ALERT MECHANISM 审中-公开
标题翻译：快速LSP报警机制
公开(公告)号：WO2011101756A1
公开(公告)日：2011-08-25
申请号：PCT/IB2011/050305
申请日：2011-01-24
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KINI, Sriganesh , RAPOPORT, Marc
发明人： KINI, Sriganesh , RAPOPORT, Marc
IPC分类号： H04L12/24 , H04L12/56
CPC分类号： H04L41/06 , H04L45/28 , H04L45/304 , H04L45/50 , H04L47/10
摘要： A method performed on a network element employing Multiprotocol Label Switching (MPLS) to promulgate an alert to each Label Switch Router (LSR) (101) along a Label Switch Path (LSP) by forwarding a labeled packet serving as an alert packet generated by an LSR (101) in the LSP, the method including receiving the labeled packet by the network element (101) from another LSR in the LSP, determining whether the labeled packet is the alert packet by checking a time to live value in an MPLS label header of the labeled packet, determining whether the labeled packet is an operation, administration and maintenance (OAM) packet based on a presence of a generic associated channel label, copying the labeled packet including a label stack of the labeled packet and forwarding the labeled packet to a next LSR in the LSP, whereby the latency in promulgating the alert to each of the LSRs (101) in the LSP is reduced.
摘要翻译：一种在使用多协议标签交换（MPLS）的网元上执行的方法，通过转发用作由一个或多个标签交换路由器（101）产生的警报包的标记分组，向标签交换路径（LSP）向每个标签交换路由器（LSR）发布警报 LSR（101），该方法包括：通过网络单元（101）从LSP中的另一个LSR接收标记的分组，通过在MPLS标签头中检查生存时间值来确定标记分组是否是报警分组根据所述通用关联信道标签的存在来确定所述标记分组是否是操作，管理和维护（OAM）分组，复制所述标签分组，所述分组包括所述标签分组的标签栈，并将所述标签分组转发到 LSP中的下一个LSR，从而减少向LSP中的每个LSR（101）发布警报的延迟。

3. 发明申请

WO2013001405A1 E-TREE USING TWO PSEUDOWIRES BETWEEN EDGE ROUTERS WITH ENHANCED FORWARDING METHODS AND SYSTEMS 审中-公开
标题翻译： E-TREE在边缘路由器之间使用两个增强的前向方法和系统的PSEUDOW
公开(公告)号：WO2013001405A1
公开(公告)日：2013-01-03
申请号：PCT/IB2012/053067
申请日：2012-06-18
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , KINI, Sriganesh , SINICROPE, David , CHEN, Michael , RAPOPORT, Marc
发明人： KINI, Sriganesh , SINICROPE, David , CHEN, Michael , RAPOPORT, Marc
IPC分类号： H04L12/56
CPC分类号： H04L45/66
摘要： An e-tree service that includes establishing two pseudowires (PW) between edge network elements with enhanced packet forwarding is described. In one embodiment, a root PW is used for carrying packets that are sent from a root node network element, and a leaf PW is used for carrying packets that are sent from a leaf node network element in the e-tree service network. When a network element receives a packet with a destination Media Access Control (MAC) address on the logical port associated with the leaf access circuit (AC), responsive to determining that the destination MAC address corresponds to a MAC address in a MAC address table stored in the network element, and that an attribute associated with that MAC address in the MAC address table indicates the MAC address was learned from the leaf PW, the network element drops the packet.
摘要翻译：描述了包括在具有增强的分组转发的边缘网元之间建立两个伪线（PW）的电子树服务。在一个实施例中，根PW用于承载从根节点网元发送的分组，并且叶PW用于承载从电子树业务网络中的叶节点网元发送的分组。当网络元件在与叶访问电路（AC）相关联的逻辑端口上接收到具有目的地媒体访问控制（MAC）地址的分组时，响应于确定目的地MAC地址对应于存储的MAC地址表中的MAC地址在网元中，与该MAC地址表中的MAC地址相关联的属性表示从叶PW学到的MAC地址，网元丢弃该包。

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