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    SYSTEM AND METHOD FOR REPORTING OUT-OF-RESOURCES (OOR) CONDITIONS IN A DATA NETWORK
    2.
    发明申请
    SYSTEM AND METHOD FOR REPORTING OUT-OF-RESOURCES (OOR) CONDITIONS IN A DATA NETWORK 有权
    用于报告数据网络中的资源不足（OOR）条件的系统和方法

    公开(公告)号：US20140211629A1

    公开(公告)日：2014-07-31

    申请号：US14229503

    申请日：2014-03-28

    Applicant: Cisco Technology, Inc.

    Inventor： Sami Boutros ,  Muthurajah Sivabalan ,  David D. Ward ,  Stefano B. Previdi ,  Jean-Philippe Vasseur ,  Rodolphe Figaro ,  Reshad A. Rahman

    IPC: H04L12/803

    CPC classification number: H04L47/125 ,  H04L41/06 ,  H04L45/00 ,  H04L45/50 ,  H04L47/2408 ,  H04L47/745

    Abstract: A system and method for advertising out-of-resources (OOR) conditions for entities, such as nodes, line cards and data links, in a manner that does not involve using a maximum cost to indicate the entity is “out-of-resources.” According to the technique, an OOR condition for an entity is advertised in one or more type-length-value (TLV) objects contained in an advertisement message. The advertisement message is flooded to nodes on a data network to inform them of the entity's OOR condition. Head-end nodes that process the advertisement message may use information contained in the TLV object to determine a path for a new label switched path (LSP) that does not include the entity associated with the OOR condition.

    Abstract translation: 用于以不涉及使用最大成本来指示实体的方式向诸如节点，线路卡和数据链路的实体（例如节点，线路卡和数据链路）广告外部资源（OOR）条件的系统和方法是“超出资源 。“根据该技术，实体的OOR条件在广告消息中包含的一个或多个类型长度值（TLV）对象中通告。 广告消息被洪泛到数据网络上的节点，以通知他们实体的OOR条件。 处理广告消息的头端节点可以使用包含在TLV对象中的信息来确定不包括与OOR条件相关联的实体的新标签交换路径（LSP）的路径。

    TECHNIQUE FOR EFFICIENTLY AND DYNAMICALLY MAINTAINING BIDIRECTIONAL FORWARDING DETECTION ON A BUNDLE OF LINKS
    3.
    发明申请
    TECHNIQUE FOR EFFICIENTLY AND DYNAMICALLY MAINTAINING BIDIRECTIONAL FORWARDING DETECTION ON A BUNDLE OF LINKS 审中-公开
    有效和动态维护链路上的双向前向检测技术

    公开(公告)号：US20140019614A1

    公开(公告)日：2014-01-16

    申请号：US14028026

    申请日：2013-09-16

    Applicant: Cisco Technology, Inc.

    Inventor： Reshad A. Rahman ,  David P. Toscano ,  Sylvain Masse ,  David D. Ward ,  Neil R. Ketley

    IPC: H04L12/26

    CPC classification number: H04L43/10 ,  H04L41/0663 ,  H04L45/00 ,  H04L45/22 ,  H04L45/24 ,  H04L45/245 ,  H04L45/28 ,  H04L45/58 ,  H04L45/60 ,  H04Q2011/0081 ,  H04Q2213/13162 ,  Y02D50/30

    Abstract: In one embodiment, a plurality of links between a network node and another network node are configured as a link bundle. The network node establishes one or more standby bidirectional forwarding detection (BFD) sessions. Each standby BFD session is associated with one or more links of the link bundle. The network node establishes an active BFD session. The active BFD session is associated with one or more links of the link bundle. In response to non-receipt of returned BFD messages for the active BFD session, one or more new active BFD sessions are selected from the one or more standby BFD sessions. In response to non-receipt of returned BFD messages for the one or more new active BFD sessions, it is determined that the link bundle has failed.

    Abstract translation: 在一个实施例中，网络节点和另一个网络节点之间的多个链路被配置为链路束。 网络节点建立一个或多个备用双向转发检测（BFD）会话。 每个备用BFD会话与链路束的一个或多个链路相关联。 网络节点建立活动的BFD会话。 活动BFD会话与链路束的一个或多个链路相关联。 响应未接收到活动BFD会话的返回BFD报文，从一个或多个备用BFD会话中选择一个或多个新的活动BFD会话。 响应未收到一个或多个新的活动BFD会话的返回BFD消息，确定链路束已失败。

    DISTINGUISHING BETWEEN CONNECTIVITY VERIFICATION AVAILABILITY AND FORWARDING PROTOCOL FUNCTIONALITY IN A COMPUTER NETWORK
    4.
    发明申请
    DISTINGUISHING BETWEEN CONNECTIVITY VERIFICATION AVAILABILITY AND FORWARDING PROTOCOL FUNCTIONALITY IN A COMPUTER NETWORK 审中-公开
    连接验证可用性和计算机网络中的前向协议功能之间的差异

    公开(公告)号：US20130229909A1

    公开(公告)日：2013-09-05

    申请号：US13861939

    申请日：2013-04-12

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： Reshad A. Rahman ,  David P. Toscano ,  Sylvain Masse ,  Jonathan Parker ,  David D. Ward

    IPC: H04L12/24

    CPC classification number: H04L41/0695 ,  H04L69/16

    Abstract: In one embodiment, a local network device transmits a connectivity verification protocol control message over a link to a remote network device to attempt to establish a connectivity verification protocol session with the remote network device. In response to non-receipt of a returned connectivity verification protocol control message from the remote network device, the local network device determines that there is an inability to establish a connectivity verification protocol session with the remote network device. The local network device then sends a connectivity verification protocol echo message over the link to the remote network device without establishment of a connectivity verification protocol session. The echo message is sent using a forwarding protocol. In response to receipt of a reply to the connectivity verification protocol echo message from the remote network device, the local network device determines that the forwarding protocol is functioning and uses the link to forward data traffic to the remote network device.

    Abstract translation: 在一个实施例中，本地网络设备通过到远程网络设备的链路发送连接性验证协议控制消息，以尝试与远程网络设备建立连接性验证协议会话。 响应于从远程网络设备未收到返回的连接性验证协议控制消息，本地网络设备确定无法与远程网络设备建立连接性验证协议会话。 然后，本地网络设备通过链路向远程网络设备发送连接验证协议回传消息，而不建立连接性验证协议会话。 使用转发协议发送回发消息。 响应于从远程网络设备接收到对连接性验证协议回传消息的回复，本地网络设备确定转发协议正在工作，并使用链路将数据业务转发到远程网络设备。

    Distinguishing between connectivity verification availability and forwarding protocol functionality in a computer network
    6.
    发明授权
    Distinguishing between connectivity verification availability and forwarding protocol functionality in a computer network 有权
    区分计算机网络中的连接性验证可用性和转发协议功能

    公开(公告)号：US09166877B2

    公开(公告)日：2015-10-20

    申请号：US13861939

    申请日：2013-04-12

    Applicant: Cisco Technology, Inc.

    Inventor： Reshad A. Rahman ,  David P. Toscano ,  Sylvain Masse ,  Jonathan Parker ,  David D. Ward

    IPC: G01R31/08 ,  H04L12/24 ,  H04L29/06

    CPC classification number: H04L41/0695 ,  H04L69/16

    Abstract: In one embodiment, a local network device transmits a connectivity verification protocol control message over a link to a remote network device to attempt to establish a connectivity verification protocol session with the remote network device. In response to non-receipt of a returned connectivity verification protocol control message from the remote network device, the local network device determines that there is an inability to establish a connectivity verification protocol session with the remote network device. The local network device then sends a connectivity verification protocol echo message over the link to the remote network device without establishment of a connectivity verification protocol session. The echo message is sent using a forwarding protocol. In response to receipt of a reply to the connectivity verification protocol echo message from the remote network device, the local network device determines that the forwarding protocol is functioning and uses the link to forward data traffic to the remote network device.

    Abstract translation: 在一个实施例中，本地网络设备通过到远程网络设备的链路发送连接性验证协议控制消息，以尝试与远程网络设备建立连接性验证协议会话。 响应于从远程网络设备未收到返回的连接性验证协议控制消息，本地网络设备确定无法与远程网络设备建立连接性验证协议会话。 然后，本地网络设备通过链路向远程网络设备发送连接验证协议回传消息，而不建立连接性验证协议会话。 使用转发协议发送回发消息。 响应于从远程网络设备接收到对连接性验证协议回传消息的回复，本地网络设备确定转发协议正在工作，并使用链路将数据业务转发到远程网络设备。

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