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公开(公告)号：US20150288536A1
公开(公告)日：2015-10-08
申请号：US14743715
申请日：2015-06-18
IPC分类号： H04L12/437 , H04L12/703 , H04L12/427 , H04L12/26
CPC分类号： H04L12/437 , H04L12/427 , H04L43/0811 , H04L45/18 , H04L45/28
摘要： In one embodiment, micro-loops are avoided in ring topologies of packet switching devices by changing the order of propagation of link state information concerning failed communications between a particular packet switching device and a neighbor packet switching device. In one embodiment, the particular packet switching device communicates link state information of a high cost of the particular communications (e.g., in the direction from particular to neighbor packet switching devices) such that this link state information will propagate towards the particular packet switching device from at least from the furthest packet switching device in the ring topology that is currently configured to forward packets having a destination address of the neighbor packet switching device through the particular packet switching device.
摘要翻译： 在一个实施例中，通过改变关于特定分组交换设备和相邻分组交换设备之间的故障通信的链路状态信息的传播顺序来避免分组交换设备的环形拓扑中的微环路。 在一个实施例中，特定分组交换设备传送特定通信的高成本（例如，从特定到相邻分组交换设备的方向）的链路状态信息，使得该链路状态信息将向特定分组交换设备传播 至少来自当前配置为通过特定分组交换设备转发具有相邻分组交换设备的目的地地址的分组的环形拓扑中的最远分组交换设备。
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2.发明授权Method and apparatus for constructing a backup route in a data communications network 有权在数据通信网络中构建备份路由的方法和装置公开(公告)号：US07707307B2
公开(公告)日：2010-04-27
申请号：US10340371
申请日：2003-01-09
申请人： Kevin George Miles , Ian Michael Charles Shand , Stewart Frederick Bryant , Stefano Benedetto Previdi , John Anthony Harper , Clarence Filsfils
发明人： Kevin George Miles , Ian Michael Charles Shand , Stewart Frederick Bryant , Stefano Benedetto Previdi , John Anthony Harper , Clarence Filsfils
IPC分类号： G06F15/173 , G01R31/08
摘要： A method is disclosed for constructing a backup route from a source node around an adjacent component. The source node derives a first set of nodes reachable from it without traversing the adjacent component and a second set of nodes from which a neighbor node of adjacent components is reachable without traversing the adjacent component. The source node then constructs a backup route via an intermediate node in the intersection of the first and second sets.
摘要翻译： 公开了一种用于从邻近组件周围的源节点构建备用路由的方法。 源节点导出可从其到达的第一组节点，而不穿过相邻组件和相邻组件的相邻节点可到达的第二组节点，而不穿过相邻组件。 源节点然后经由第一和第二组的交集中的中间节点构建备用路由。
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3.发明授权公开(公告)号：US07042838B1
公开(公告)日：2006-05-09
申请号：US10848669
申请日：2004-05-18
IPC分类号： G01R31/08
摘要： A method of forwarding data in a data communications network comprising a plurality of nodes comprises the step of forwarding data according to a forwarding strategy implemented at a forwarding node. Where the implemented strategy comprises a repair strategy to compensate for a change in the network, the method further comprises the step of encapsulating the data in a primary repair encapsulating packet and marking the primary repairing encapsulating packet as repaired.
摘要翻译： 在包括多个节点的数据通信网络中转发数据的方法包括根据在转发节点处实现的转发策略来转发数据的步骤。 在实施的策略包括补偿网络变化的修复策略的情况下，该方法还包括将数据封装在主修复封装分组中并标记被修复的主修复封装分组的步骤。
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公开(公告)号：US09942057B2
公开(公告)日：2018-04-10
申请号：US14743715
申请日：2015-06-18
IPC分类号： H04L12/437 , H04L12/705 , H04L12/703 , H04L12/427 , H04L12/26
CPC分类号： H04L12/437 , H04L12/427 , H04L43/0811 , H04L45/18 , H04L45/28
摘要： In one embodiment, micro-loops are avoided in ring topologies of packet switching devices by changing the order of propagation of link state information concerning failed communications between a particular packet switching device and a neighbor packet switching device. In one embodiment, the particular packet switching device communicates link state information of a high cost of the particular communications (e.g., in the direction from particular to neighbor packet switching devices) such that this link state information will propagate towards the particular packet switching device from at least from the furthest packet switching device in the ring topology that is currently configured to forward packets having a destination address of the neighbor packet switching device through the particular packet switching device.
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公开(公告)号：US20130088974A1
公开(公告)日：2013-04-11
申请号：US13269617
申请日：2011-10-09
CPC分类号： H04L12/437 , H04L12/427 , H04L43/0811 , H04L45/18 , H04L45/28
摘要： In one embodiment, micro-loops are avoided in ring topologies of packet switching devices by changing the order of propagation of link state information concerning failed communications between a particular packet switching device and a neighbor packet switching device. In one embodiment, the particular packet switching device communicates link state information of a high cost of the particular communications (e.g., in the direction from particular to neighbor packet switching devices) such that this link state information will propagate towards the particular packet switching device from at least from the furthest packet switching device in the ring topology that is currently configured to forward packets having a destination address of the neighbor packet switching device through the particular packet switching device.
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公开(公告)号：US09094329B2
公开(公告)日：2015-07-28
申请号：US13269617
申请日：2011-10-09
IPC分类号： H04L12/26 , H04L12/28 , H04L12/703 , H04L12/705 , H04L12/437
CPC分类号： H04L12/437 , H04L12/427 , H04L43/0811 , H04L45/18 , H04L45/28
摘要： In one embodiment, micro-loops are avoided in ring topologies of packet switching devices by changing the order of propagation of link state information concerning failed communications between a particular packet switching device and a neighbor packet switching device. In one embodiment, the particular packet switching device communicates link state information of a high cost of the particular communications (e.g., in the direction from particular to neighbor packet switching devices) such that this link state information will propagate towards the particular packet switching device from at least from the furthest packet switching device in the ring topology that is currently configured to forward packets having a destination address of the neighbor packet switching device through the particular packet switching device.
摘要翻译： 在一个实施例中，通过改变关于特定分组交换设备和相邻分组交换设备之间的故障通信的链路状态信息的传播顺序来避免分组交换设备的环形拓扑中的微环路。 在一个实施例中，特定分组交换设备传送特定通信的高成本（例如，从特定到相邻分组交换设备的方向）的链路状态信息，使得该链路状态信息将向特定分组交换设备传播 至少来自当前配置为通过特定分组交换设备转发具有相邻分组交换设备的目的地地址的分组的环形拓扑中的最远分组交换设备。
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公开(公告)号：US08238232B2
公开(公告)日：2012-08-07
申请号：US11968499
申请日：2008-01-02
摘要： A method is described of constructing a transition route in a data communication network having as components nodes and links. Upon receipt of a transition notification identifying a first component a non-neighboring node constructs a transition route around the first component. In an embodiment, a node performs detecting the first component transition; issuing a transition notification identifying the first component and recognizable by nodes configured to construct a transition route around the first component; and upon expiry of a notification transition period, issuing a transition advertisement recognizable by all nodes on the network.
摘要翻译： 描述了在具有节点和链路的组件的数据通信网络中构建转换路由的方法。 当接收到标识第一组件的转换通知时，非相邻节点构成围绕第一组件的转换路径。 在一个实施例中，节点执行检测第一分量转换; 发出标识所述第一组件的转换通知，并且可被被配置为围绕所述第一组件构建转换路径的节点识别; 并且在通知转换期限届满时，发布由网络上的所有节点可识别的转换广告。
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公开(公告)号：US07920566B2
公开(公告)日：2011-04-05
申请号：US11788106
申请日：2007-04-18
IPC分类号： H04L12/28
CPC分类号： H04L45/22 , H04L45/02 , H04L45/28 , H04L45/50 , H04L45/507
摘要： An apparatus for forwarding data in a data communications network having as components nodes and links therebetween is described. The apparatus is arranged to forward data towards a destination on a label switched path and advertise in a label advertisement to nodes in the network in a label advertisement its label for the label switched path and its label for a repair label switched path for use in the event of non availability of a component in the network. The apparatus is further arranged to advertise to a remote node in the network in a label advertisement additional information for deriving repair label switched path information at the remote node.
摘要翻译： 描述了一种用于在数据通信网络中转发数据的装置，其具有作为其间的节点和链路的组件。 该设备被布置为在标签交换路径上向目的地转发数据，并且在标签广告中向标签广告中的节点通告标签公告其标签交换路径的标签及其用于维护标签交换路径的标签 网络中组件不可用的事件。 所述装置还被布置为在标签广告中向网络中的远程节点通告用于在远程节点处导出修复标签交换路径信息的附加信息。
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9.发明授权Constructing repair paths around multiple non-available links in a data communications network 有权围绕数据通信网络中的多个不可用链路构建修复路径公开(公告)号：US07852751B2
公开(公告)日：2010-12-14
申请号：US12032274
申请日：2008-02-15
IPC分类号： H04L12/26
摘要： A data processing apparatus is configured for initiating a not-via approach for creating repair path information for a first link between the first network node and a second network node; creating a list of other network nodes that the not-via repair path traverses; creating and storing entries in the FIB identifying repair addresses for the network nodes and that cause (a) packets directed to all addresses normally reachable through the first link to be encapsulated to the second node not via the first node, (b) packets directed to a not-via address that is normally reachable through the first link to be encapsulated to the second node not via the first node, and (c) dropping packets directed to a not-via address that is normally reachable through the first link when the not-via address is in the list; repeating the preceding steps for all other links of the first network node.
摘要翻译： 数据处理装置被配置为启动用于为第一网络节点和第二网络节点之间的第一链路创建修复路径信息的非通路方法; 创建非通路修复路径穿过的其他网络节点的列表; 创建和存储FIB中的条目，以识别网络节点的修复地址，并导致（a）指向通过第一链路正常可到达的所有地址的分组，而不是经由第一节点封装到第二节点;（b）指向 通常可通过第一链路到达不通过第一节点封装到第二节点的非通过地址，以及（c）丢弃通过第一链路正常可到达的非通过地址的分组， -via地址在列表中; 对第一网络节点的所有其他链路重复前述步骤。
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公开(公告)号：US08659991B2
公开(公告)日：2014-02-25
申请号：US12965038
申请日：2010-12-10
IPC分类号： H04L12/28
CPC分类号： H04L41/0668 , H04L45/22 , H04L45/28 , H04L45/42
摘要： In an embodiment, a method comprises determining a set of protected components that are associated with a notifying node; determining a single network repair address for the set of protected components, wherein the single network repair address is for use in response to unavailability of any of the protected components when transmitting network traffic to the notifying node; assigning the single network repair address to each of the protected components; wherein the notifying node is an internetworking device and wherein the method is performed by one or more processors.
摘要翻译： 在一个实施例中，一种方法包括确定与通知节点相关联的一组受保护组件; 确定所述一组受保护组件的单个网络修复地址，其中，当将网络业务传输到所述通知节点时，所述单个网络修复地址用于响应于任何所述受保护组件的不可用性; 将单个网络修复地址分配给每个受保护的组件; 其中所述通知节点是互联网络设备，并且其中所述方法由一个或多个处理器执行。
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