Automatic Method for Setting Up mLDP LSP Through P2P Tunnel
    11.
    发明申请
    Automatic Method for Setting Up mLDP LSP Through P2P Tunnel 有权
    通过P2P隧道设置mLDP LSP的自动方法

    公开(公告)号:US20130294455A1

    公开(公告)日:2013-11-07

    申请号:US13465792

    申请日:2012-05-07

    IPC分类号: H04L12/56

    CPC分类号: H04L45/16 H04L45/507

    摘要: An apparatus comprising a processor configured to send a first notification message to a first label switch router (LSR) to discover the upstream multipoint Label Distribution Protocol (mLDP) LSR, wherein the apparatus is configured to couple to the first LSR, and wherein the first LSR is not an mLDP LSR, receive a second notification message from the upstream mLDP node, and in response to receiving the second notification message, establish an mLDP Label Switch Path (LSP) to the upstream mLDP node via the first LSR.

    摘要翻译: 一种装置,包括:处理器,被配置为向第一标签交换路由器(LSR)发送第一通知消息以发现上游多点标签分发协议(mLDP)LSR,其中所述设备被配置为耦合到所述第一LSR,并且其中所述第一 LSR不是mLDP LSR,从上游的mLDP节点接收到第二个通知消息,响应收到第二个通知消息,通过第一个LSR建立到上游的mLDP节点的mLDP标签交换路径(LSP)。

    Protecting Ingress and Egress of a Label Switched Path
    12.
    发明申请
    Protecting Ingress and Egress of a Label Switched Path 有权
    保护标签交换路径的入口和出口

    公开(公告)号:US20100177631A1

    公开(公告)日:2010-07-15

    申请号:US12683968

    申请日:2010-01-07

    IPC分类号: G06F11/00

    摘要: An apparatus comprising a backup node coupled to an ingress node of a point-to-multipoint (P2MP) label switched path (LSP) and to a plurality of next-hop nodes of the ingress node of the P2MP LSP via a backup tree, wherein the backup node and the ingress node are both coupled to an external node, and wherein the backup node is configured to ensure data delivery in the P2MP LSP when the ingress node fails. Included is a network component comprising at least one processor configured to implement a method comprising detecting a failure in an ingress node of a P2MP LSP, receiving a data packet destined for the ingress node and to be transported by the P2MP LSP from a provider node when the ingress node fails, and transmitting the data packet on a backup tree that merges with the P2MP LSP prior to reaching an egress node.

    摘要翻译: 一种装置,包括经由备份树耦合到点对多点(P2MP)标签交换路径(LSP)的入口节点和P2MP LSP的入节点的多个下一跳节点的备份节点,其中, 所述备份节点和所述入口节点都耦合到外部节点,并且其中所述备份节点被配置为当所述入口节点发生故障时,确保所述P2MP LSP中的数据传送。 包括的网络组件包括至少一个处理器,其被配置为实现一种方法,该方法包括:检测P2MP LSP的入口节点中的故障,接收目的地为入口节点的数据分组并且由P2MP LSP从提供商节点传送, 入口节点发生故障,并在到达出口节点之前将数据包发送到与P2MP LSP合并的备份树上。

    Multi-protocol label switching multi-topology support
    13.
    发明授权
    Multi-protocol label switching multi-topology support 有权
    多协议标签交换多拓扑支持

    公开(公告)号:US09143434B2

    公开(公告)日:2015-09-22

    申请号:US13523564

    申请日:2012-06-14

    摘要: A network component comprising at least one processor configured to implement a method comprising receiving a packet, determining whether the packet comprises a topology label, and adding the topology label to the packet if the packet does not comprise the topology label. Included is a method comprising routing a plurality of packets corresponding to a plurality of forwarding equivalence classes (FECs) over a plurality of network topologies using a topology label and plurality of forwarding labels for each network topology. Also included is a network comprising a plurality of nodes in communication with each other and having a plurality of network topologies, wherein at least some of the nodes are configured to route data packets for a plurality of FECs along a path in each network topology using a topology label corresponding to each network topology and an inner label corresponding to each FEC.

    摘要翻译: 一种网络组件,包括至少一个处理器,其被配置为实现包括接收分组的方法,确定所述分组是否包括拓扑标签,以及如果所述分组不包括所述拓扑标签,则将所述拓扑标签添加到所述分组。 包括的方法包括使用拓扑标签和针对每个网络拓扑的多个转发标签在多个网络拓扑上路由对应于多个转发等价类(FEC)的多个分组。 还包括包括彼此通信并且具有多个网络拓扑的多个节点的网络,其中至少一些节点被配置为沿着每个网络拓扑中的路径使用多个FEC路径的数据分组路由 对应于每个网络拓扑的拓扑标签和对应于每个FEC的内部标签。

    Automatic method for setting up mLDP LSP through P2P tunnel
    14.
    发明授权
    Automatic method for setting up mLDP LSP through P2P tunnel 有权
    通过P2P隧道建立mLDP LSP的自动方法

    公开(公告)号:US09118577B2

    公开(公告)日:2015-08-25

    申请号:US13465792

    申请日:2012-05-07

    CPC分类号: H04L45/16 H04L45/507

    摘要: An apparatus comprising a processor configured to send a first notification message to a first label switch router (LSR) to discover the upstream multipoint Label Distribution Protocol (mLDP) LSR, wherein the apparatus is configured to couple to the first LSR, and wherein the first LSR is not an mLDP LSR, receive a second notification message from the upstream mLDP node, and in response to receiving the second notification message, establish an mLDP Label Switch Path (LSP) to the upstream mLDP node via the first LSR.

    摘要翻译: 一种装置,包括:处理器,被配置为向第一标签交换路由器(LSR)发送第一通知消息以发现上游多点标签分发协议(mLDP)LSR,其中所述设备被配置为耦合到所述第一LSR,并且其中所述第一 LSR不是mLDP LSR,从上游mLDP节点接收到第二条通知消息,响应收到第二条通知消息,通过第一条LSR建立到上游mLDP节点的mLDP标签交换路径(LSP)。

    System and method for multi-topology support
    15.
    发明授权
    System and method for multi-topology support 有权
    多拓扑支持的系统和方法

    公开(公告)号:US08724637B2

    公开(公告)日:2014-05-13

    申请号:US12476054

    申请日:2009-06-01

    IPC分类号: H04L12/28

    摘要: A system and method for providing multi-topology support in RSVP-TE in a multi-protocol label switching network is provided. A method includes reserving path states for a traffic engineered label switched path (TE LSP), and releasing the reserved path states. The TE LSP is established within a single network topology in an environment of multiple network topologies, and the reserving path states includes sending a first resource reservation protocol with traffic engineering (RSVP-TE) message containing multi-topology information.

    摘要翻译: 提供了一种在多协议标签交换网络中在RSVP-TE中提供多拓扑支持的系统和方法。 一种方法包括为流量工程标签交换路径(TE LSP)预留路径状态,以及释放保留路径状态。 TE LSP建立在多个网络拓扑环境中的单个网络拓扑中,保留路径状态包括发送包含多拓扑信息的流量工程(RSVP-TE)消息的第一资源预留协议。

    System and method for communications system routing component level high availability
    16.
    发明授权
    System and method for communications system routing component level high availability 有权
    通信系统路由组件级别高可用性的系统和方法

    公开(公告)号:US08483049B2

    公开(公告)日:2013-07-09

    申请号:US12829315

    申请日:2010-07-01

    IPC分类号: H04L1/00 G06F11/16

    摘要: A system and method for communications system routing component level high availability are provided. A method for providing routing component level high availability includes synchronizing information from an active information source, detecting a failure in a routing component, replacing the failed routing component with a backup routing component, and completing synchronization of the information.

    摘要翻译: 提供了一种用于通信系统路由组件级高可用性的系统和方法。 提供路由组件级高可用性的方法包括:从活动信息源同步信息,检测路由组件中的故障,用备份路由组件替换故障路由组件,以及完成信息的同步。

    System and method for point to multipoint inter-domain multiprotocol label switching traffic engineering path calculation
    17.
    发明授权
    System and method for point to multipoint inter-domain multiprotocol label switching traffic engineering path calculation 有权
    点对多域间多协议标签交换流量工程路径计算的系统与方法

    公开(公告)号:US08351418B2

    公开(公告)日:2013-01-08

    申请号:US12708048

    申请日:2010-02-18

    IPC分类号: H04L12/28

    摘要: A system comprising a plurality of path computation elements (PCEs) configured to communicate with an ingress node, jointly compute a core tree for an inter-domain point-to-multipoint (P2MP) tree across a plurality of network domains, and independently compute a plurality of sub-trees in at least some of the network domains, wherein the core tree connects the ingress node to a boundary node (BN) in each one of the network domains that have a destination node and each sub-tree connects the BN to a plurality of destination nodes in one of the network domains that have a destination node.

    摘要翻译: 一种系统,包括被配置为与入口节点进行通信的多个路径计算元件(PCE),跨多个网络域共同计算跨域点对多点(P2MP)树的核心树,并独立地计算 至少一些网络域中的多个子树,其中核心树将入口节点连接到具有目的地节点的每个网络域中的边界节点(BN),并且每个子树将BN连接到 具有目的地节点的网络域之一中的多个目的地节点。

    Computing point-to-multipoint paths
    18.
    发明授权
    Computing point-to-multipoint paths 有权
    计算点对多点路径

    公开(公告)号:US08064447B2

    公开(公告)日:2011-11-22

    申请号:US12404100

    申请日:2009-03-13

    摘要: An apparatus comprising a path computation element (PCE) configured to communicate with a path computation client (PCC) and compute a point-to-multipoint (P2MP) path across an autonomous system (AS) domain. Also included is a network component comprising at least one processor configured to implement a method comprising obtaining a computation request for a P2MP path across a plurality of AS domains, attempting to calculate the P2MP path across the AS domains, thereby generating a computed path or a failure reason, and transmitting a reply comprising the computed path or an indication of the failure reason. Included is a method comprising exchanging a request message and a reply message about a P2MP path across an AS domain between a PCC and a PCE.

    摘要翻译: 一种装置,包括被配置为与路径计算客户端(PCC)进行通信并且计算跨自治系统(AS)域的点对多点(P2MP)路径的路径计算元件(PCE)。 还包括一种网络组件,其包括至少一个处理器,该至少一个处理器被配置为实现一种方法,该方法包括获得跨多个AS域的P2MP路径的计算请求,试图计算跨越AS域的P2MP路径,从而生成计算出的路径或 故障原因,以及发送包含计算出的路径的回复或失败原因的指示。 包括一种方法,包括在PCC和PCE之间跨AS域交换请求消息和关于P2MP路径的回复消息。