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。

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。

公开(公告)号：US07310341B2

公开(公告)日：2007-12-18

申请号：US10302922

申请日：2002-11-25

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： H04L12/50

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。

公开(公告)号：US20070286201A1

公开(公告)日：2007-12-13

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： H04L12/56

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.

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。

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。

公开(公告)号：US07283467B2

公开(公告)日：2007-10-16

申请号：US10315996

申请日：2002-12-11

申请人： Carl Rajsic ,  Maged Edward Shaker

发明人： Carl Rajsic ,  Maged Edward Shaker

IPC分类号： G01R31/08 ,  H04L12/28 ,  H04J3/16 ,  G06F15/173

CPC分类号： H04L45/26 ,  H04L45/04 ,  H04L45/22 ,  H04L45/28

摘要： A method and system for improving call routing in a PNNI network using crankback messaging. A destination logical group node (LGN) blocked crankback procedure is used by entry border nodes, in the event of a failed connection attempt, to instruct preceding routing capable nodes to route the connection over another link. If the entry border node is in the lowest level peer group a Succeeding End Blocked (SEB) crankback message is sent to the preceding routing-capable node. If the entry border node is not in the lowest level peer group, a destination LGN blocked crankback message is sent to the preceding routing-capable node wherein the message has special information to signal the routing node that the link into the destination LGN is blocked.

摘要翻译： 一种改善PNNI网络呼叫路由的方法和系统， 在连接尝试失败的情况下，入口边界节点使用目的地逻辑组节点（LGN）阻止曲柄程序来指示先前的路由能力节点将连接路由到另一个链路上。 如果入口边界节点处于最低级对等体组，则将向后面的路由功能节点发送成功结束阻塞（SEB）曲柄消息。 如果入口边界节点不在最低级别的对等组中，则将目的地LGN阻止的曲柄返回消息发送到先前的具有路由能力的节点，其中消息具有特殊信息以向路由节点通知到目的地LGN的链路被阻塞。

公开(公告)号：US20060268680A1

公开(公告)日：2006-11-30

申请号：US11137147

申请日：2005-05-25

申请人： Peter Roberts ,  Carl Rajsic

发明人： Peter Roberts ,  Carl Rajsic

IPC分类号： H04L12/26

CPC分类号： H04L12/2602 ,  H04L41/0663 ,  H04L41/0803 ,  H04L43/00 ,  H04L43/0811 ,  H04L43/50 ,  H04L45/28 ,  H04L45/50 ,  H04L2012/5625 ,  H04Q11/0478 ,  H04W24/00 ,  H04W24/08

摘要： Communication network connection failure protection methods and systems are disclosed. Control information is communicated in a communication network, and causes network elements of the communication network to establish connection monitoring for respective segments of the network connection. Connection monitoring information which is communicated on the segments allows failures such as loss of continuity to be detected and reported. Responsive to an indication of a failure on a segment, the segment on which the failure occurred is identified, and the network connection can be rerouted around that segment.

摘要翻译： 公开了通信网络连接故障保护方法和系统。 在通信网络中传送控制信息，并使通信网络的网元对网络连接的各个段建立连接监视。 在段上通信的连接监视信息允许检测和报告诸如连续性损失的故障。 响应于段上发生故障的指示，识别发生故障的段，并且可以围绕该段重新路由网络连接。

公开(公告)号：US20060034171A1

公开(公告)日：2006-02-16

申请号：US10914170

申请日：2004-08-10

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 ,  H04L12/5602 ,  H04L45/04 ,  H04L2012/563

摘要： There is provided a method of forwarding a traffic flow in a communications network having at least one network node for which network traffic is selectively prevented from transiting the network node. The method includes the step of selecting a specified category of network traffic that is to be prevented from transiting the network node. The method also includes the step of determining a path within the network for forwarding the traffic flow, whereby the network node is excluded for transit in establishing the path where the traffic flow is identified with the specified category of network traffic.

摘要翻译： 提供了一种在具有至少一个网络节点的通信网络中转发业务流的方法，网络业务被选择性地阻止其转发网络节点。 该方法包括选择要被阻止的指定类别的网络流量转移网络节点的步骤。 该方法还包括确定网络内用于转发业务流的路径的步骤，由此在建立以特定类别的网络业务识别业务流的路径的情况下排除网络节点进行传输。

公开(公告)号：US20050220119A1

公开(公告)日：2005-10-06

申请号：US10814330

申请日：2004-04-01

申请人： Carl Rajsic

发明人： Carl Rajsic

IPC分类号： H04L9/32 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08

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。