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    Method and apparatus for congestion avoidance in source routed signaling protocol communication networks
    1.
    发明授权
    Method and apparatus for congestion avoidance in source routed signaling protocol communication networks 有权
    源路由信令协议通信网络中拥塞避免的方法和装置

    公开(公告)号：US07730201B1

    公开(公告)日：2010-06-01

    申请号：US09549328

    申请日：2000-04-13

    申请人： Shawn P. McAllister ,  Paul Merlo ,  Andrew Dolganow

    发明人： Shawn P. McAllister ,  Paul Merlo ,  Andrew Dolganow

    IPC分类号： G06F15/16 ,  G06F15/173

    CPC分类号： H04L12/5602 ,  H04L2012/563 ,  H04L2012/5635 ,  H04Q3/0091

    摘要： A method and apparatus for communicating and utilizing control plane congestion information in a communication network that utilizes a source routed signaling protocol is presented. When control plane congestion is detected at a network element within the communication network, a congestion notification message is generated corresponding to the detected control plane congestion. The congestion notification is then provided to at least one additional network element within the communications network. The at least one additional network element can then utilize this knowledge of the congestion within the network to perform various network functions, including the routing a connection set-up message.

    摘要翻译： 提出了一种用于在利用源路由信令协议的通信网络中传送和利用控制平面拥塞信息的方法和装置。 当在通信网络内的网元检测到控制平面拥塞时，根据检测到的控制平面拥塞产生拥塞通知消息。 然后将拥塞通知提供给通信网络内的至少一个附加网元。 然后，至少一个附加网元可以利用网络中的拥塞的这种知识来执行各种网络功能，包括路由连接建立消息。

    System and method for call-blocking-triggered topology updates in source routed signaling protocol communication networks
    3.
    发明授权
    System and method for call-blocking-triggered topology updates in source routed signaling protocol communication networks 有权
    源路由信令协议通信网络中的呼叫阻塞触发拓扑更新的系统和方法

    公开(公告)号：US07222191B2

    公开(公告)日：2007-05-22

    申请号：US11340670

    申请日：2006-01-27

    申请人： Andrew Dolganow ,  Shawn P. McAllister

    发明人： Andrew Dolganow ,  Shawn P. McAllister

    IPC分类号： G06F15/173 ,  G06F15/16

    CPC分类号： H04L47/822 ,  H04L47/70 ,  H04L47/783 ,  H04L47/829

    摘要： Advertising available resource information for a link in a communication network is provided. The network uses a source routing protocol. The source routing protocol uses the available resource advertisements for identifying a path for a call routed through the node in the network. The method advertises the available resource information for the node to adjacent nodes linked to the node in the network when the node receives a request for a connection to be routed over the link, the request seeking resources exceeding available resources for the link, but not exceeding the last advertised resources for the link.

    摘要翻译： 提供了用于通信网络中的链路的可用资源信息的广告。 网络使用源路由协议。 源路由协议使用可用的资源广告来标识通过网络中的节点路由的呼叫的路径。 当节点接收到要通过链路路由的连接的请求时，该方法将节点的可用资源信息通告给链接到网络中的节点的相邻节点，该请求寻找超过链路的可用资源但不超过的资源 链接的最后广告资源。

    Method and apparatus for topology database re-synchronization in communications networks having topology state routing protocols
    6.
    发明授权
    Method and apparatus for topology database re-synchronization in communications networks having topology state routing protocols 有权
    具有拓扑状态路由协议的通信网络中拓扑数据库重新同步的方法和装置

    公开(公告)号：US06876625B1

    公开(公告)日：2005-04-05

    申请号：US09663793

    申请日：2000-09-18

    申请人： Shawn P. McAllister ,  Carl Rajsic

    发明人： Shawn P. McAllister ,  Carl Rajsic

    IPC分类号： H04L12/24 ,  H04L12/56 ,  H04L12/28

    CPC分类号： H04L45/28 ,  H04L41/0654 ,  H04L41/12 ,  H04L45/02 ,  H04L45/021 ,  H04L45/028 ,  H04L45/04 ,  H04L45/32 ,  H04L45/586

    摘要： There is provided a method and apparatus for synchronization of topology state information between two network nodes in a communications network. The communications network has a routing protocol for intermittent advertisement of local state information throughout the network. The two network nodes include a requesting node which initiates a request for topology state synchronization and a replying node which receives the request. The replying node communicates with the requesting node to provide topology state information to the requesting node which is not possessed by the requesting node when the requesting node initiates its request. The method includes the step of selecting, prior to the request being made by the requesting node to the replying node, between a first and a second mode of synchronization. The first mode provides for topology state synchronization which entails withdrawal of the intermittent advertisement of local state information as it pertains respectively to the requesting node and to the replying node. The second mode provides for topology state synchronization which maintains the intermittent advertisement of local state information as it pertains respectively to the requesting node and to the replying node.

    摘要翻译： 提供了一种用于在通信网络中的两个网络节点之间同步拓扑状态信息的方法和装置。 通信网络具有用于在整个网络中间歇地发送本地状态信息的路由协议。 两个网络节点包括发起拓扑状态同步的请求的请求节点和接收请求的应答节点。 所述应答节点与所述请求节点进行通信，以在所述请求节点发起其请求时向所述请求节点不拥有的所述请求节点提供拓扑状态信息。 该方法包括在请求节点对应答节点进行请求之前，在第一和第二同步模式之间进行选择的步骤。 第一模式提供拓扑状态同步，其需要撤销局部状态信息的间歇性广告，因为它分别涉及请求节点和应答节点。 第二模式提供拓扑状态同步，其维持本地状态信息的间歇性通告，因为它分别与请求节点和应答节点相关。

    Method and apparatus for rerouting a connection in a data communication network based on a user connection monitoring function
    7.
    发明授权
    Method and apparatus for rerouting a connection in a data communication network based on a user connection monitoring function 有权
    基于用户连接监视功能在数据通信网络中重新路由连接的方法和装置

    公开(公告)号：US08199649B2

    公开(公告)日：2012-06-12

    申请号：US09821708

    申请日：2001-03-28

    申请人： Shawn P. McAllister ,  Ronald Andrew Jeffery ,  Jayanthi Venkatasubba

    发明人： Shawn P. McAllister ,  Ronald Andrew Jeffery ,  Jayanthi Venkatasubba

    IPC分类号： H04L12/26 ,  G06F15/173

    CPC分类号： H04Q11/0478 ,  H04L41/0668 ,  H04L43/0811 ,  H04L2012/562 ,  H04L2012/5621 ,  H04L2012/5625 ,  H04L2012/5627

    摘要： A method and apparatus for rerouting connections in a data communication network based on detection of faults or other undesirable characteristics using a user connection monitoring function is presented. After a connection is established that is managed by a control plane, the status of characteristics of the connection is monitored using a user connection monitoring function. In one embodiment, the user connection monitoring function includes the use of operation and management (OAM) cells. When the status of one or more of the selected characteristics being monitored is determined to be unacceptable, control plane rerouting of the connection is initiated. Selected characteristics that may be monitored using the user connection monitoring function include, for example, continuity, data corruption, data loss, latency, and misinsertion of data. The reroute initiated in response to the unacceptable characteristic may be a hard reroute or a soft reroute.

    摘要翻译： 提出了一种基于使用用户连接监视功能检测故障或其他不良特性来重新路由数据通信网络中的连接的方法和装置。 在由控制平面管理的连接建立之后，使用用户连接监视功能监视连接的特性状态。 在一个实施例中，用户连接监视功能包括使用操作和管理（OAM）单元。 当被监视的一个或多个所选特征的状态被确定为不可接受时，启动连接的控制平面重新路由。 可以使用用户连接监视功能监视的所选特征包括例如连续性，数据损坏，数据丢失，延迟和数据的错误插入。 响应于不可接受的特性启动的重新路由可能是硬路由或软重新路由。