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21. 发明授权

US07733860B2 Method for advertising reachable address information in a network 有权
标题翻译：在网络中广告可达地址信息的方法
公开(公告)号：US07733860B2
公开(公告)日：2010-06-08
申请号：US10286491
申请日：2002-11-01
申请人： John Coffell , Shawn McAllister , Carl Rajsic
发明人： John Coffell , Shawn McAllister , Carl Rajsic
IPC分类号： H04L12/28
CPC分类号： H04L61/1541 , H04L29/12113 , H04L41/12 , H04L45/04 , H04L45/22 , H04L45/24
摘要： The present invention provides a method for permitting fully detailed advertising of reachability information for some addresses in a network while efficiently summarizing reachability information for other addresses. At least one embodiment is implemented as part of a process used by logical nodes for advertising reachability information for members of a group of nodes represented by the logical node. At least one embodiment provides an “exception” instruction that allows detailed reachable address information to be advertised for an address that would otherwise be included in summary address information. At least one embodiment allows detailed reachability information to be advertised for the particular address while still allowing summarization of reachable address information for addresses sharing a common prefix with the “exception” address. At least one embodiment thereby allows detailed information to be advertised where needed while allowing summary address information to be advertised where such detailed information is not needed.
摘要翻译：本发明提供一种用于允许对网络中的一些地址的可达性信息进行全面详细广告的方法，同时有效地总结其他地址的可达性信息。至少一个实施例被实现为由逻辑节点用于为由逻辑节点表示的一组节点的成员广告可达性信息的过程的一部分。至少一个实施例提供了一个“异常”指令，其允许为将被包括在汇总地址信息中的地址通告详细的可达地址信息。至少一个实施例允许为特定地址通告详细的可达性信息，同时仍允许对与“异常”地址共享公共前缀的地址的可达地址信息进行汇总。因此，至少一个实施例允许在需要时公布详细信息，同时允许在不需要这样的详细信息的情况下通告摘要地址信息。

22. 发明授权

US07649894B2 System and method for parallel connection selection in a communication network 失效
标题翻译：通信网络并行连接选择的系统和方法
公开(公告)号：US07649894B2
公开(公告)日：2010-01-19
申请号：US11882771
申请日：2007-08-06
申请人： Walter Prager , David Ker , Carl Rajsic , Shawn McAllister
发明人： Walter Prager , David Ker , Carl Rajsic , Shawn McAllister
IPC分类号： H04L12/28
CPC分类号： H04L47/10 , H04L45/245 , H04L47/125 , H04L47/16 , H04L2012/562 , Y02D50/30
摘要： The invention provides a system and method of a selecting an egress connection from egress connections at a node for a call being established in a network along a path being associated with the node. Each connection has sufficient bandwidth to carry the call and terminates at a same destination point in said path. The system and method comprise utilizing at least a bandwidth load balance value for each connection in a set of the connections to select the egress connection from the set. An administrative factor score may be used to further define members of the set.
摘要翻译：本发明提供了一种系统和方法，该系统和方法从沿着与节点相关联的路径在网络中建立的呼叫的节点处的出口连接选择出口连接。每个连接具有足够的带宽来携带呼叫并终止于所述路径中的相同目的地点。该系统和方法包括为一组连接中的每个连接使用至少一个带宽负载平衡值，以从集合中选择出口连接。可以使用管理因素得分来进一步定义集合的成员。

23. 发明授权

US07542432B2 Resource matched topology database synchronization in communications networks having topology state routing protocols 有权
标题翻译：具有拓扑状态路由协议的通信网络中的资源匹配拓扑数据库同步
公开(公告)号：US07542432B2
公开(公告)日：2009-06-02
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。

24. 发明申请

US20050129024A1 Providing VPLS-like service over native ATM networks 有权
标题翻译：通过本地ATM网络提供类似VPLS的服务
公开(公告)号：US20050129024A1
公开(公告)日：2005-06-16
申请号：US10731091
申请日：2003-12-10
申请人： John Fisher , Shay Nahum , Carl Rajsic , Shawn McAllister
发明人： John Fisher , Shay Nahum , Carl Rajsic , Shawn McAllister
IPC分类号： H04L12/56
CPC分类号： H04L12/5601 , H04L2012/5618
摘要： A method and apparatus are provided for emulating VPLS within an ATM network. Provider Edge devices are configured for the VPLS connections. Each provider edge device advertises its configured VPLS IDs to other provider edge devices by propagating an information group up the PNNI hierarchy, the information group containing an association between an ATM address of the provider edge device and the VPLS ID. Information groups are propagated back down the PNNI hierarchy, so that each lowest level node learns all ATM addresses to be associated with each VPLS ID. For each pair of provider edge devices supporting the same VPLS ID, one of the provider edge devices establishes a virtual circuit between the pair. In this way, a mesh of virtual circuits is established between provider edge devices, and a VPLS-like service can be offered to users without having to implement MPLS. The method of advertising ATM addresses can also be applied to other services requiring a number of interconnections between provider edge devices, such as Virtual Private Networks.
摘要翻译：提供了一种在ATM网络内仿真VPLS的方法和装置。为VPLS连接配置了Provider Edge设备。每个提供商边缘设备通过将信息组向上传播到PNNI层级来向其他提供商边缘设备发布其配置的VPLS ID，所述信息组包含提供商边缘设备的ATM地址与VPLS ID之间的关联。信息组被传播回PNNI层次结构，使得每个最低级节点学习与每个VPLS ID相关联的所有ATM地址。对于支持相同VPLS ID的每对提供商边缘设备，提供商边缘设备之一在该对之间建立虚拟电路。以这种方式，在提供商边缘设备之间建立虚拟电路网格，并且可以向用户提供类似VPLS的服务，而不必实现MPLS。广告ATM地址的方法也可以应用于需要诸如虚拟专用网络的提供商边缘设备之间的多个互连的其他服务。

25. 发明授权

US06876625B1 Method and apparatus for topology database re-synchronization in communications networks having topology state routing protocols 有权
标题翻译：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。

26. 发明授权

US09806886B2 Service plane encryption in IP/MPLS networks 有权
公开(公告)号：US09806886B2
公开(公告)日：2017-10-31
申请号：US13746119
申请日：2013-01-21
申请人： Carl Rajsic
发明人： Carl Rajsic
IPC分类号： H04L9/00 , H04L29/06 , H04L9/14 , H04L9/08 , H04L9/32 , H04K1/00
CPC分类号： H04L9/14 , H04L63/0435 , H04L63/0442 , H04L63/08 , H04L63/164
摘要： A method for providing service plane encryption in IP/MPLS and GRE networks is disclosed. The method for providing service plane encryption in IP/MPLS and GRE networks includes receiving a first Security Parameter Index with associated first encryption key and associated first authentication key at a first network element supporting the first Service Distribution Point; receiving an instruction at the first network element to encrypt data entering the first Service Distribution point with the first encryption key; receiving an instruction at the first network element to associate a data communication service provided at the first network element to the first Service Distribution Point; providing an encryption label; and providing data associated with the first communication service to the first Service Distribution Point for transmission to the second Service Distribution Point. The method for providing service plane encryption in IP/MPLS and GRE networks provides encryption advantages over systems known in the art by providing capability for selectively encrypting services connected via a data tunnel.

27. 发明申请

US20140208094A1 CONTROL PLANE ENCRYPTION IN IP/MPLS NETWORKS 有权
标题翻译： IP / MPLS网络中的控制平面加密
公开(公告)号：US20140208094A1
公开(公告)日：2014-07-24
申请号：US13748244
申请日：2013-01-23
申请人： Carl Rajsic , Hansen Chan
发明人： Carl Rajsic , Hansen Chan
IPC分类号： H04L29/06
CPC分类号： H04L63/0428 , H04L63/166
摘要： A method for providing control plane encryption in layer 3 networks is disclosed. The method for providing control plane encryption in layer 3 networks includes for a network having a subset of network elements forming a secured domain; the steps of at a network element which is in the secured domain, encrypting all unencrypted Layer 3 packets as they egress an encryption enable egress interface; unencrypting all encrypted Layer 3 packets as they egress an egress interface is not enabled for encryption; and leaving encrypted all encrypted Layer 3 packets as they egress an encryption enable egress interface. A system and machine readable storage media are also disclosed.
摘要翻译：公开了一种在3层网络中提供控制平面加密的方法。在第3层网络中提供控制平面加密的方法包括：具有构成安全域的网络元素子集的网络; 在安全域中的网元处的步骤，在加密使能出口接口出口时对所有未加密的第3层报文进行加密; 加密所有加密的第3层数据包，因为它们离开出口接口未启用加密; 并保留所有加密的第3层数据包，因为它们出口加密使能出口接口。还公开了一种系统和机器可读存储介质。

28. 发明授权

US07978707B2 Method and apparatus for securely establishing L3-SVC connections 有权
标题翻译：安全建立L3-SVC连接的方法和装置
公开(公告)号：US07978707B2
公开(公告)日：2011-07-12
申请号：US10814330
申请日：2004-04-01
申请人： Carl Rajsic
发明人： Carl Rajsic
IPC分类号： H04L12/28
CPC分类号： H04L63/0428 , H04L12/5601 , H04L45/10 , H04L63/20 , H04L69/325 , H04L2012/5652 , H04L2012/5667 , H04L2012/5687
摘要： A system and method are provided for securely establishing Layer-3 SVCs or SPVCs across an ATM network. An originating multiservice switch that generates the connection setup message for the Layer-3 connection includes security information within the setup message, such as a Closed User Group Interlock Code. When the destination multiservice switch receives the setup message, it extracts the embedded security information and compares it with stored security information corresponding to the connection. The correspondence may be determined from the destination user. If the embedded security information matches the stored security information, the destination multiservice switch allows the connection to be established.
摘要翻译：提供了一种用于在ATM网络上安全建立第3层SVC或SPVC的系统和方法。生成第3层连接的连接建立消息的始发多业务交换机包括建立消息内的安全信息，诸如闭合用户组互锁码。当目的地多业务交换机接收建立消息时，提取嵌入的安全信息，并将其与存储的与该连接相对应的安全信息进行比较。可以从目的地用户确定通信。如果嵌入式安全信息与存储的安全信息相匹配，则目标多业务交换机允许建立连接。

29. 发明授权

US07899044B2 Method and system for optimizing resources for establishing pseudo-wires in a multiprotocol label switching network 有权
标题翻译：在多协议标签交换网络中优化用于建立伪线的资源的方法和系统
公开(公告)号：US07899044B2
公开(公告)日：2011-03-01
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： H04L12/28
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足够的用于伪线连接的资源，则激活伪线连接，从而优化用于建立第一和第二交换机中的每一个的伪线连接的资源。

30. 发明授权

US07733869B2 Providing VPLS-like service over native ATM networks 有权
标题翻译：通过本地ATM网络提供类似VPLS的服务
公开(公告)号：US07733869B2
公开(公告)日：2010-06-08
申请号：US10731091
申请日：2003-12-10
申请人： John Fischer , Shay Nahum , Carl Rajsic , Shawn McAllister
发明人： John Fischer , Shay Nahum , Carl Rajsic , Shawn McAllister
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/5601 , H04L2012/5618
摘要： A method and apparatus for emulating VPLS within an ATM network. Provider Edge devices are configured for VPLS connections. For each pair of provider edge devices supporting the same VPLS ID, one device establishes a virtual circuit between the pair. Thus, a full mesh of virtual circuits is established between provider edge devices, and a VPLS-like service can be offered to users without having to implement MPLS. Establishing the virtual circuits within a PNNI hierarchy maybe facilitated by each provider edge device propagating through the hierarchy an information group containing an association between the ATM address of the device and a VPLS ID, so that each provider edge device learns all ATM addresses to be associated with each VPLS ID. The method of advertising ATM addresses can be applied to other services requiring a number of interconnections between provider edge devices, such as Virtual Private Networks.
摘要翻译：一种在ATM网络内仿真VPLS的方法和装置。 Provider Edge设备配置为VPLS连接。对于支持相同VPLS ID的每对提供商边缘设备，一个设备在该对之间建立虚拟电路。因此，在提供商边缘设备之间建立完整的虚拟电路网格，并且可以向用户提供类似VPLS的服务，而不必实现MPLS。在PNNI层级内建立虚拟电路可以由每个提供商边缘设备通过层级传播包含设备的ATM地址和VPLS ID之间的关联的信息组来促进，使得每个提供商边缘设备学习要关联的所有ATM地址每个VPLS ID。广告ATM地址的方法可以应用于在诸如虚拟专用网络的提供商边缘设备之间需要多个互连的其他服务。

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