公开(公告)号：US20080240102A1

公开(公告)日：2008-10-02

申请号：US11727515

申请日：2007-03-27

申请人： Carl Rajsic ,  Dale Kevin Burnett

发明人： Carl Rajsic ,  Dale Kevin Burnett

IPC分类号： H04L12/56

CPC分类号： H04L45/00 ,  H04L12/5601 ,  H04L45/10 ,  H04L45/308 ,  H04L2012/5621 ,  H04L2012/5632

摘要： A method for policy-based routing of calls between nodes in a network, comprising: entering policy constraint indices for selected addresses in respective entries of an address translation table, the address translation table for accessing by a first node of the network to selectively translate attributes of calls based on respective addresses prior to transmission over the network to a second node, the policy constraint indices pointing to respective policy constraints for routing calls between the first and second nodes; receiving a call at the first node, the call including an address; accessing the address translation table using the address to determine whether the call requires assignment of a policy constraint by presence of an entry for the address in the address translation table and by presence of a policy constraint index in the entry; and, if the call requires assignment of a policy constraint, identifying a policy constraint with the policy constraint index, assigning the policy constraint to the call, and routing the call between the first and second nodes in accordance with the policy constraint.

摘要翻译： 一种用于在网络中的节点之间进行基于策略的呼叫路由的方法，包括：输入地址转换表的相应条目中的所选地址的策略约束索引，所述地址转换表用于由所述网络的第一节点访问以选择性地转换属性 在通过网络传输到第二节点之前基于相应地址的呼叫，所述策略约束索引指向用于在第一和第二节点之间路由呼叫的相应策略约束; 在第一节点接收呼叫，呼叫包括地址; 使用地址访问地址转换表，以确定呼叫是否需要通过存在地址转换表中的地址的条目以及条目中存在策略约束索引来分配策略约束; 并且如果呼叫需要分配策略约束，则使用策略约束索引识别策略约束，将策略约束分配给该呼叫，以及根据策略约束在第一和第二节点之间路由该呼叫。

公开(公告)号：US07366184B2

公开(公告)日：2008-04-29

申请号：US10417116

申请日：2003-04-17

申请人： Carl Rajsic ,  Arnold Jansen ,  Mudashiru Busari

发明人： Carl Rajsic ,  Arnold Jansen ,  Mudashiru Busari

IPC分类号： H04L12/56

CPC分类号： H04L12/56

摘要： In a multi-service network, layer 2 traffic such as IP traffic according to the invention is carried over ATM SVCs or SPVCs. Methods of setting up such connections using the PNNI protocol are also discussed. Using enhancements to the standard ATM SPVC/SVC signaling messages, layer 3 IP routing processes on multi-services switches on opposite ends of the network allow traffic to flow transparently through an underlying layer 2 virtual connection. This provides a simple and efficient way to transport IP packets across an ATM network.

摘要翻译： 在多业务网络中，根据本发明的诸如IP业务的二层流量在ATM​​ SVC或SPVC上承载。 还讨论了使用PNNI协议设置此类连接的方法。 使用对标准ATM SPVC / SVC信令消息的增强，网络相对端上的多业务交换机上的第3层IP路由进程允许流量通过底层2虚拟连接透明地流动。 这提供了一种通过ATM网络传输IP数据包的简单有效的方式。

公开(公告)号：US20070286090A1

公开(公告)日：2007-12-13

申请号：US11448826

申请日：2006-06-08

申请人： Jason Dirk Rusmisel ,  Alexander Kutman ,  Bassem Abdel-Aziz ,  Carl Rajsic

发明人： Jason Dirk Rusmisel ,  Alexander Kutman ,  Bassem Abdel-Aziz ,  Carl Rajsic

IPC分类号： H04J1/16

CPC分类号： H04L47/724 ,  H04L12/4633 ,  H04L45/502 ,  H04L47/70 ,  H04L47/825

摘要： A method for establishing a pseudo-wire connection between first and second switches in a packet switched network, the method comprising: sending a label mapping message to the second switch requesting that the pseudo-wire connection be established with the first switch; reserving resources for the pseudo-wire connection at the first switch; receiving a label withdraw message from the second switch if the second switch has insufficient resources for the pseudo-wire connection and, in response to the label withdraw message, releasing the resources for the pseudo-wire connection at the first switch; and, activating the pseudo-wire connection if the second switch has sufficient resources for the pseudo-wire connection, thereby optimizing resources for establishing pseudo-wire connections of each of the first and second switches.

摘要翻译： 一种用于在分组交换网络中建立第一和第二交换机之间的伪线连接的方法，所述方法包括：向所述第二交换机发送标签映射消息，请求与所述第一交换机建立所述伪线连接; 在第一交换机处为伪线连接预留资源; 如果所述第二交换机具有足够的伪线连接资源，并且响应于所述标签提取消息，在所述第一交换机处释放用于所述伪线连接的资源，则从所述第二交换机接收标签提取消息; 以及如果所述第二交换机具有用于所述伪线连接的足够资源，则激活所述伪线连接，从而优化用于建立所述第一和第二交换机中的每一个的伪线连接的资源。

公开(公告)号：US20070097880A1

公开(公告)日：2007-05-03

申请号：US11259167

申请日：2005-10-27

申请人： Carl Rajsic

发明人： Carl Rajsic

IPC分类号： H04L12/28

CPC分类号： H04L45/04 ,  H04L41/12 ,  H04L45/02 ,  H04L45/26

摘要： A method for selecting a neighboring node to synchronize network topology database information with a network node from among a plurality of neighboring nodes coupled to the network node in a network, the method comprising: receiving from each of the neighboring nodes an identifier and an indication as to whether synchronization resources have been assigned to the network node; comparing by magnitude the identifier of the neighboring node with identifiers of others of the neighboring nodes to determine whether to synchronize with the neighboring node; and, synchronizing with the neighboring node if the neighboring node has assigned synchronization resources to the network node.

摘要翻译： 一种用于选择相邻节点以将网络拓扑数据库信息与网络中耦合到所述网络节点的多个相邻节点之间的网络节点进行同步的方法，所述方法包括：从每个相邻节点接收标识符和指示， 是否将同步资源分配给网络节点; 将相邻节点的标识符与相邻节点中的其他标识符的大小进行比较，以确定是否与相邻节点同步; 并且如果相邻节点已经向网络节点分配了同步资源，则与相邻节点同步。

公开(公告)号：US20060285486A1

公开(公告)日：2006-12-21

申请号：US11156566

申请日：2005-06-21

申请人： Peter Roberts ,  Carl Rajsic

发明人： Peter Roberts ,  Carl Rajsic

IPC分类号： H04J3/14 ,  H04J1/16 ,  G08C15/00 ,  H04L12/26 ,  G01R31/08

CPC分类号： H04L12/5601 ,  H04L45/22 ,  H04L2012/5627

摘要： A system and method are provided for a multi-endpoint SPVC, the multi-endpoint SPVC providing redundancy. A primary SPVC is established through a first source node. An intermate communication channel (ICC) is established between the first source node and a second source node. If the primary SPVC fails, the second source node learns of this via the ICC and establishes an alternate SPVC. If the first source node fails, the second source node learns of this failure without having to be explicitly told. The second source node learns of the failure of the first source node when poll messages are no longer received over the ICC as indicated by expiry of a timer. In such an event, the second source node attempts to establish an alternate SPVC. Finite state machines are provided on each source node to monitor the status of each other. Command messages, in the form of Generic Application Transport information elements, are provided by which the finite state machines can communicate over the ICC.

公开(公告)号：US20060153191A1

公开(公告)日：2006-07-13

申请号：US11032023

申请日：2005-01-11

申请人： Carl Rajsic ,  Maged Shaker

发明人： Carl Rajsic ,  Maged Shaker

IPC分类号： H04L12/56

CPC分类号： H04L49/256 ,  H04L12/5601

摘要： The invention provides a system and method for identifying a pre-computed path for an incoming connection at a node in a policy-based routing network. The method comprises: examining requirements of the incoming connection; examining policies associated with routes available from the node; identifying at least one policy of the policies which meets the requirements of the incoming connection; and utilizing that one policy for the pre-computed path for the incoming connection.

摘要翻译： 本发明提供了一种用于在基于策略的路由网络中的节点处识别用于进入连接的预先计算的路径的系统和方法。 该方法包括：检查传入连接的要求; 检查与节点可用路由相关联的策略; 确定符合传入连接要求的策略的至少一个策略; 并将该一个策略用于传入连接的预先计算的路径。

公开(公告)号：US20050094555A1

公开(公告)日：2005-05-05

申请号：US10699786

申请日：2003-11-04

申请人： Michael Weedmark ,  Carl Rajsic

发明人： Michael Weedmark ,  Carl Rajsic

IPC分类号： H04L12/56 ,  H04L12/26

CPC分类号： H04L45/22 ,  H04L43/0811 ,  H04L45/00 ,  H04L45/10 ,  H04L45/28

摘要： A method and apparatus are provided for protecting a connection during implementation of an Active Connection Modify request. Before initiating the ACM request, an alternate connection between the source node and the destination node of the connection are established using Domain-Based Rerouting. The alternate connection may be established in conformance either with the traffic parameters of the existing connection or with the new traffic parameters specified in the ACM request. If the connection along the original connection is to be torn as a result of lost ACM signaling messages, the connection is first switched to the alternate connection in a hitless manner. If the alternate connection is established in conformance with the new traffic parameters, and the ACM request can not be implemented along the original connection, due for example to resource shortage along the original connection, then the connection is switched to the alternate connection in a hitless manner. In this way, connections are protected in the event of lost ACM messages resulting from signal congestion, and the ACM may be implemented even in the event of resource shortage along the original connection.

摘要翻译： 提供了一种用于在实现活动连接修改请求期间保护连接的方法和装置。 在启动ACM请求之前，使用基于域的重新路由建立连接的源节点和目标节点之间的备用连接。 备用连接可以与现有连接的流量参数或ACM请求中指定的新流量参数一致地建立。 如果原始连接的连接由于ACM信令消息丢失而被破坏，则连接首先以无中断的方式切换到备用连接。 如果根据新的流量参数建立替代连接，并且ACM请求不能沿着原始连接实现，例如由于原始连接的资源短缺，则连接被切换到无连接的备用连接 方式。 以这种方式，在由信号拥塞引起的ACM消息丢失的情况下，连接被保护，并且即使在沿着原始连接的资源短缺的情况下也可以实现ACM。