公开(公告)号：US20140160987A1

公开(公告)日：2014-06-12

申请号：US13711265

申请日：2012-12-11

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Qianglin Quintin Zhao ,  Katherine Zhao ,  Tao Zhou ,  Ying Chen

IPC: H04L12/56

CPC classification number: H04L45/507 ,  H04L45/16

Abstract: A computer program product comprising computer executable instructions stored on a non-transitory medium of an upstream node in a network system comprising a plurality of nodes that when executed by a processor cause the node to advertise an upstream assigned label to a downstream node, receive a message from the downstream node, and if the received message confirms that no conflict with the upstream assigned label exists at the downstream node, assign the upstream-assigned label, or if the received message confirms that a conflict with the upstream-assigned label exists at the downstream node, either select a new upstream-assigned label or wait until indication is received that the label resource has become available.

公开(公告)号：US20130250963A1

公开(公告)日：2013-09-26

申请号：US13850739

申请日：2013-03-26

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Qianglin Quintin Zhao ,  Ying Chen

IPC: H04L12/56

CPC classification number: H04L45/745 ,  H04L45/16 ,  H04L45/502 ,  H04L45/507 ,  H04L47/724 ,  H04L47/806

Abstract: An apparatus comprising a processor configured to store a first upstream label in a forwarding table upon receipt of a first message encapsulating the first upstream label from a first adjacent node, store a first downstream label in the forwarding table upon receipt of a second message encapsulating the first downstream label from a second adjacent node, send a third message encapsulating a second downstream label to the first adjacent node, send a fourth message encapsulating a second upstream label to the second adjacent node; and forward data received from a plurality of adjacent nodes over a MP2MP LSP using at least a portion of the labels stored in the forwarding table, wherein each adjacent node is associated with only one upstream label and only one downstream label, and wherein the maximum state complexity of the forwarding table is linear relative to the number of adjacent nodes.

Abstract translation: 一种装置，包括：处理器，被配置为在接收到从第一相邻节点封装所述第一上游标签的第一消息时在转发表中存储第一上游标签;在接收到封装所述第一上游标签的第二消息时，将第一下游标签存储在所述转发表中; 从第二相邻节点的第一下游标签向第一相邻节点发送封装第二下游标签的第三消息，向第二相邻节点发送封装第二上游标签的第四消息; 以及使用存储在所述转发表中的标签的至少一部分，通过MP2MP LSP从多个相邻节点接收的数据，其中每个相邻节点仅与一个上游标签相关联，并且仅与一个下游标签相关联，并且其中所述最大状态 转发表的复杂度相对于相邻节点的数量是线性的。

公开(公告)号：US09253082B2

公开(公告)日：2016-02-02

申请号：US13649979

申请日：2012-10-11

Applicant: Futurewei Technologies, Inc.

Inventor： Qianglin Quintin Zhao ,  Ying Chen

IPC: H04L12/703 ,  H04L12/26 ,  H04L12/707 ,  H04L12/753 ,  H04L12/723

CPC classification number: H04L45/28 ,  H04L43/10 ,  H04L45/22 ,  H04L45/48 ,  H04L45/50

Abstract: In one aspect, the invention includes, in a root node along a secondary label switching path, a computer program product comprising computer executable instructions stored on a non-transitory medium that when executed by a processor cause the root node to perform the following: establish a first data plane based failure detection session having an inactive status along a first label switching path (LSP) with at least one leaf node, receive a predetermined number of notification messages from the leaf node, wherein the predetermined number of notification messages indicate the failure of a second data plane based failure detection session along a second LSP from a second processor to the leaf node, and change the status of the first data plane based failure detection session to active along the first LSP upon receipt of the predetermined number of notification messages.

Abstract translation: 在一个方面，本发明在沿着次级标签交换路径的根节点中包括计算机程序产品，其包括存储在非暂时介质上的计算机可执行指令，当由处理器执行时，该计算机可执行指令使得根节点执行以下操作：建立 第一基于数据平面的故障检测会话具有沿着具有至少一个叶节点的第一标签交换路径（LSP）的非活动状态，从叶节点接收预定数量的通知消息，其中预定数量的通知消息指示故障 基于从第二处理器到叶节点的第二LSP的基于第二数据层的故障检测会话，并且在接收到预定数量的通知消息时，将基于第一数据平面的故障检测会话的状态沿着第一LSP改变为活动 。

公开(公告)号：US20140161124A1

公开(公告)日：2014-06-12

申请号：US13750692

申请日：2013-01-25

Applicant: FUTUREWEI TECHNOLOGIES, INC.

Inventor： Qianglin Quintin Zhao ,  Katherine Zhao ,  Tao Zhou ,  Ying Chen

IPC: H04L12/56

CPC classification number: H04L45/16 ,  H04L45/50

Abstract: A computer program product comprising computer executable instructions stored on a non-transitory medium of an upstream node in a network system comprising a plurality of nodes that when executed by a processor cause the node to advertise an upstream assigned label to a downstream node, receive a message from the downstream node, and if the received message confirms that no conflict with the upstream assigned label exists at the downstream node, assign the upstream-assigned label, or if the received message confirms that a conflict with the upstream-assigned label exists at the downstream node, either select a new upstream-assigned label or wait until indication is received that the label resource has become available.

Abstract translation: 一种计算机程序产品，其包括存储在网络系统中的上游节点的非暂时介质上的计算机可执行指令，所述计算机可执行指令包括多个节点，当由处理器执行时，所述多个节点使所述节点向下游节点通告上游分配的标签， 消息，并且如果接收到的消息确认在下游节点不存在与上游分配标签的冲突，则分配上行分配的标签，或者如果接收到的消息确认与上游分配的标签的冲突存在于 下游节点选择新的上游分配标签，或者等待直到收到标签资源已经可用的指示。

公开(公告)号：US20130336191A1

公开(公告)日：2013-12-19

申请号：US13918358

申请日：2013-06-14

Applicant: Futurewei Technologies, Inc.

Inventor： Katherine Zhao ,  Ying Chen ,  Qianglin Quintin Zhao ,  Tao Zhou ,  Renwei Li ,  Lin Han

IPC: H04L12/18

CPC classification number: H04L41/0654 ,  H04L12/1863 ,  H04L45/16 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50 ,  H04L47/15 ,  H04L47/724

Abstract: An apparatus comprising a memory, and a processor coupled to the memory and configured to transmit a multicast Resource Reservation Protocol—Traffic Engineering (mRSVP-TE) path request (PATH) message upstream, wherein the PATH message requests reservation of a backup Label Switched Path (LSP) to protect an active LSP configured to transmit multicast data. The disclosure also includes a computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a network element (NE) to receive a multicast PATH message from a downstream node, wherein the NE acts as a Point of Local Repair (PLR) along an active LSP, wherein the active LSP is configured to transmit multicast data, and wherein the PATH message requests reservation of a backup LSP to protect the active LSP.

Abstract translation: 一种包括存储器和处理器的装置，所述处理器耦合到所述存储器并且被配置为在上游传输多播资源预留协议 - 流量工程（mRSVP-TE）路径请求（PATH））消息，其中所述PATH消息请求备份标签交换路径 （LSP），保护被配置为发送组播数据的活动LSP。 本公开还包括计算机程序产品，其包括存储在非暂时性计算机可读介质上的计算机可执行指令，使得当由处理器执行时，使得网元（NE）从下游节点接收多播PATH消息，其中，NE 作为沿主动LSP的本地修复点（PLR），其中活动LSP被配置为传送多播数据，并且其中PATH消息请求预留备用LSP以保护活动LSP。