专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100189106A1 Method and Apparatus for Enabling Multicast Over Split Multilink Trunking 审中-公开
标题翻译：分组多链路中继多播的方法和装置
公开(公告)号：US20100189106A1
公开(公告)日：2010-07-29
申请号：US12753634
申请日：2010-04-02
申请人： Behfar Azimi , Wassim Tawbi , Roger Lapuh , Avoy Nanda , Ruchi Vats
发明人： Behfar Azimi , Wassim Tawbi , Roger Lapuh , Avoy Nanda , Ruchi Vats
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L12/18 , H04L45/16 , H04L45/28
摘要： Multicast traffic may be routed using DVMRP or PIM over a Split MultiLink Trunk (SMLT). Network elements on the split side of the SMLT are interconnected by an Inter-Switch Trunk (IST) to enable them to exchange control messages associated with the multicast. When a control message is received on the IST, the network element will determine if the multicast control message is associated with a normal multicast or is associated with multicast over an SMLT link. Control messages related to SMLT links will be processed as if they were received over the SMLT link rather than the IST link. To prevent traffic from being forwarded by multiple network elements over the SMLT link, data traffic from an IST link may not be transmitted over an SMLT link. Flags are used to indicate whether a link is a SMLT link or regular link. Fast recovery may occur by causing participants to transmit triggered join messages upon recovery from a failure.
摘要翻译：可以通过分割多链路中继（SMLT）使用DVMRP或PIM路由组播流量。 SMLT分裂侧的网元通过交换机间中继（IST）互连，使其能够交换与组播关联的控制消息。当在IST上接收到控制消息时，网元将确定组播控制消息是否与正常组播相关联，或者通过SMLT链路与多播相关联。控制与SMLT链接相关的消息将被处理，就好像它们是通过SMLT链接而不是IST链接接收的。为了防止多个网元通过SMLT链路转发流量，来自IST链路的数据流量可能不会通过SMLT链路传输。标志用于指示链接是SMLT链接还是常规链接。通过使参与者在从故障中恢复时发送触发的连接消息，可能会发生快速恢复。

2. 发明授权

US07719958B1 Method and apparatus for enabling multicast over split multilink trunking 有权
标题翻译：用于启用组播多分组多链路集群的方法和装置
公开(公告)号：US07719958B1
公开(公告)日：2010-05-18
申请号：US11238714
申请日：2005-09-29
申请人： Behfar Azimi , Wassim Tawbi , Roger Lapuh , Avoy Nanda , Ruchi Vats
发明人： Behfar Azimi , Wassim Tawbi , Roger Lapuh , Avoy Nanda , Ruchi Vats
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L12/18 , H04L45/16 , H04L45/28
摘要： Multicast traffic may be routed using DVMRP or PIM over a Split MultiLink Trunk (SMLT). Network elements on the split side of the SMLT are interconnected by an Inter-Switch Trunk (IST) to enable them to exchange control messages associated with the multicast. When a control message is received on the IST, the network element will determine if the multicast control message is associated with a normal multicast or is associated with multicast over an SMLT link. Control messages related to SMLT links will be processed as if they were received over the SMLT link rather than the IST link. To prevent traffic from being forwarded by multiple network elements over the SMLT link, data traffic from an IST link may not be transmitted over an SMLT link. Flags are used to indicate whether a link is a SMLT link or regular link. Fast recovery may occur by causing participants to transmit triggered join messages upon recovery from a failure.
摘要翻译：可以通过分割多链路中继（SMLT）使用DVMRP或PIM路由组播流量。 SMLT分裂侧的网元通过交换机间中继（IST）互连，使其能够交换与组播关联的控制消息。当在IST上接收到控制消息时，网元将确定组播控制消息是否与正常组播相关联，或者通过SMLT链路与多播相关联。控制与SMLT链接相关的消息将被处理，就好像它们是通过SMLT链接而不是IST链接接收的。为了防止多个网元通过SMLT链路转发流量，来自IST链路的数据流量可能不会通过SMLT链路传输。标志用于指示链接是SMLT链接还是常规链接。通过使参与者在从故障中恢复时发送触发的连接消息，可能会发生快速恢复。

3. 发明授权

US07173934B2 System, device, and method for improving communication network reliability using trunk splitting 有权
标题翻译：使用中继分割提高通信网络可靠性的系统，设备和方法
公开(公告)号：US07173934B2
公开(公告)日：2007-02-06
申请号：US10125654
申请日：2002-04-18
申请人： Roger Lapuh , Yili Zhao , Wassim Tawbi , Joseph M. Regan , David Head
发明人： Roger Lapuh , Yili Zhao , Wassim Tawbi , Joseph M. Regan , David Head
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L61/35 , H04L29/12009 , H04L29/12783 , H04L45/245 , H04L69/18 , H04L69/40 , Y02D50/30
摘要： A multilink trunk from a client device in a communication network is split between two aggregation devices such that each aggregation device is connected to at least one link of the multilink trunk. The aggregation devices work in conjunction to appear to the client device as a single device connected to the client device over the multilink trunk. The aggregation devices transmit identical bridge protocol data units to the client device over their respective links of the multilink trunk. The aggregation devices exchange operational information and data packets over inter-device communication ports. A failure of the split multilink trunk at one aggregation device is restored through the other aggregation device.
摘要翻译：来自通信网络中的客户端设备的多链路中继在两个聚合设备之间被分割，使得每个聚合设备连接到多链路中继线的至少一个链路。聚合设备一起工作，作为通过多链路中继连接到客户端设备的单个设备向客户端设备显示。聚合设备通过其多链路干线的各自链路将相同的桥协议数据单元发送到客户端设备。聚合设备通过设备间通信端口交换操作信息和数据包。在一个聚合设备处的分离多链路中继的故障通过另一聚合设备恢复。

4. 发明授权

US08971332B2 Implementation of VPNs over a link state protocol controlled Ethernet network 有权
公开(公告)号：US08971332B2
公开(公告)日：2015-03-03
申请号：US13004979
申请日：2011-01-12
申请人： Paul Unbehagen , David Allan , Bruno Germain , Roger Lapuh , Mohnish Anumala , Nigel Bragg
发明人： Paul Unbehagen , David Allan , Bruno Germain , Roger Lapuh , Mohnish Anumala , Nigel Bragg
IPC分类号： H04L12/28 , H04L12/751 , H04L12/46 , H04L12/715 , H04L12/721
CPC分类号： H04L12/4662 , H04L12/462 , H04L12/4645 , H04L12/4683 , H04L45/02 , H04L45/028 , H04L45/04 , H04L45/502 , H04L45/52 , H04L45/54 , H04L45/66
摘要： Nodes on a link state protocol controlled Ethernet network implement a link state routing protocol such as IS-IS. Nodes assign an IP address or I-SID value per VRF and then advertise the IP addresses or I-SID values in IS-IS LSAs. When a packet is to be forwarded on the VPN, the ingress node identifies the VRF for the packet and performs an IP lookup in customer address space in the VRF to determine the next hop and the IP address or I-SID value of the VRF on the egress node. The ingress node prepends an I-SID or IP header to identify the VRFs and then creates a MAC header to allow the packet to be forwarded to the egress node on the link state protocol controlled Ethernet network. When the packet is received at the egress node, the MAC header is stripped from the packet and the appended I-SID or IP header is used to identify the egress VRF. A customer address space IP lookup is then performed in the identified VRF on the egress node using the information in the client IP header to determine how to forward the packet. Customer reachability information within a VPN may be exchanged between VRFs using iBGP, or directly by using link state protocol LSAs tagged with the relevant I-SID.

5. 发明申请

US20130077627A1 METHOD AND APPARATUS FOR ROUTING MULTICAST DATA ACROSS MULTIPLE MULTICAST ROUTING DOMAINS CONNECTED BY A SHORTEST PATH BRIDGING (SPB) NETWORK 有权
标题翻译：用于通过最短路径网络（SPB）网络连接的多个多播路由域路由多播数据的方法和装置
公开(公告)号：US20130077627A1
公开(公告)日：2013-03-28
申请号：US13242686
申请日：2011-09-23
申请人： Rama Suryanarayana Appalla , Roger Lapuh , Srikanth Keesara
发明人： Rama Suryanarayana Appalla , Roger Lapuh , Srikanth Keesara
IPC分类号： H04L12/56
CPC分类号： H04L12/185 , H04L12/1836 , H04L45/04 , H04L45/12 , H04L45/16
摘要： A method and apparatus for routing multicast data across multiple multicast routing domains connected by a shortest path bridging (SPB) network is presented. A Shortest Path Bridging (SPB) edge router of an SPB network connected to a PIM network is configured as a Rendezvous Point (RP). A message is received at the RP, and in response, the RP forms a first data structure including multicast sender information. The RP floods the SPB network with a second message containing the first data structure, allocates an Identifier (ISID) to the multicast stream, and sends a second data structure with sender information. An edge router with multicast receive interest responds with the second data structure with multicast receive interest information. As a result, a receiver in a second network has knowledge of devices in a first network such that multicast traffic is able to be routed between different networks connected to the SPB network.
摘要翻译：提出了一种通过最短路径桥接（SPB）网络连接的多个多播路由域之间路由组播数据的方法和装置。连接到PIM网络的SPB网络的最短路径桥接器（SPB）边缘路由器配置为集合点（RP）。在RP接收到消息，作为响应，RP形成包括多播发送者信息的第一数据结构。 RP通过包含第一个数据结构的第二个消息洪泛SPB网络，为组播流分配一个标识符（ISID），并发送具有发送者信息的第二个数据结构。具有组播接收兴趣的边缘路由器利用具有多播接收兴趣信息的第二数据结构进行响应。因此，第二网络中的接收机具有第一网络中的设备的知识，使得多播业务能够在连接到SPB网络的不同网络之间路由。

6. 发明授权

US08107382B2 Loop detection in a communications network 有权
标题翻译：通信网络中的环路检测
公开(公告)号：US08107382B2
公开(公告)日：2012-01-31
申请号：US11394816
申请日：2006-03-31
申请人： Chuh Yu Lin , Roger Lapuh
发明人： Chuh Yu Lin , Roger Lapuh
IPC分类号： H04L12/26
CPC分类号： H04L43/50
摘要： A first node includes ports and a controller to receive a test packet at a first one of the ports. The first node determines whether the received test packet has a destination address that matches one or more predefined addresses associated with a second node. Presence of a loop in a communications network in which the first and second nodes are located is indicated in response to detecting receipt of the test packet containing the matching destination address.
摘要翻译：第一节点包括端口和用于在第一个端口接收测试分组的控制器。第一节点确定所接收的测试分组是否具有与一个或多个与第二节点相关联的预定义地址匹配的目的地地址。响应于检测到包含匹配目的地地址的测试分组的接收，指示在其中定位第一和第二节点的通信网络中的循环的存在。

7. 发明授权

US08804722B2 Method and apparatus for routing multicast data across multiple multicast routing domains connected by a shortest path bridging (SPB) network 有权
标题翻译：用于通过最短路径桥接（SPB）网络连接的多个多播路由域路由组播数据的方法和装置
公开(公告)号：US08804722B2
公开(公告)日：2014-08-12
申请号：US13242686
申请日：2011-09-23
申请人： Rama Suryanarayana Appalla , Roger Lapuh , Srikanth Keesara
发明人： Rama Suryanarayana Appalla , Roger Lapuh , Srikanth Keesara
IPC分类号： H04L12/28
CPC分类号： H04L12/185 , H04L12/1836 , H04L45/04 , H04L45/12 , H04L45/16
摘要： A method and apparatus for routing multicast data across multiple multicast routing domains connected by a shortest path bridging (SPB) network is presented. A Shortest Path Bridging (SPB) edge router of an SPB network connected to a PIM network is configured as a Rendezvous Point (RP). A message is received at the RP, and in response, the RP forms a first data structure including multicast sender information. The RP floods the SPB network with a second message containing the first data structure, allocates an Identifier to the multicast stream, and sends a second data structure with sender information. An edge router with multicast receive interest responds with the second data structure with multicast receive interest information. As a result, a receiver in a second network has knowledge of devices in a first network such that multicast traffic is able to be routed between different networks connected to the SPB network.
摘要翻译：提出了一种通过最短路径桥接（SPB）网络连接的多个多播路由域之间路由组播数据的方法和装置。连接到PIM网络的SPB网络的最短路径桥接器（SPB）边缘路由器配置为集合点（RP）。在RP接收到消息，作为响应，RP形成包括多播发送者信息的第一数据结构。 RP通过包含第一个数据结构的第二个消息洪泛SPB网络，为组播流分配一个标识符，并发送具有发送者信息的第二个数据结构。具有组播接收兴趣的边缘路由器利用具有多播接收兴趣信息的第二数据结构进行响应。因此，第二网络中的接收机具有第一网络中的设备的知识，使得多播业务能够在连接到SPB网络的不同网络之间路由。

8. 发明申请

US20120170578A1 MULTICAST VPN SUPPORT FOR IP-VPN LITE 有权
标题翻译： IP-VPN LITE的MULTICAST VPN支持
公开(公告)号：US20120170578A1
公开(公告)日：2012-07-05
申请号：US12980885
申请日：2010-12-29
申请人： Mohnish Anumala , Roger Lapuh , Ganesh Nakhawa
发明人： Mohnish Anumala , Roger Lapuh , Ganesh Nakhawa
IPC分类号： H04L12/56
CPC分类号： H04L12/56 , H04L12/1886 , H04L12/4641 , H04L45/04 , H04L45/16
摘要： Techniques disclosed herein include systems and methods for providing multicast Virtual Private Network (VPN) support for IP VPN networks, including IP VPN-lite networks. Such techniques provide multicast VPN capability over an IP unicast core network by creating a multicast service VLAN and IP interface, which is used for multicast control traffic exchange between VPN instances. Multicast VPN data traffic is then carried over unicast IP-in-IP tunnels. A given ingress Provide Edge (PE) replicates the multicast traffic for all receiving egress PEs, and adds control information so that the multicast traffic appears as unicast traffic to the Core network. With such a technique, a given Core network only needs to run an IP unicast that is free of VPN unicast or multicast route or tree information.
摘要翻译：本文公开的技术包括为IP VPN网络（包括IP VPN-Lite网络）提供组播虚拟专用网（VPN）支持的系统和方法。这种技术通过创建组播业务VLAN和IP接口，通过IP单播核心网提供组播VPN能力，用于VPN实例之间的组播控制流量交换。组播VPN数据流量然后通过单播IP-in-IP隧道传输。给定的入口提供边缘（PE）复制所有接收出口PE的组播流量，并添加控制信息，使得组播流量以单播流量出现到核心网络。通过这种技术，给定的核心网络只需要运行一个没有VPN单播或组播路由或树信息的IP单播。

9. 发明申请

US20100329265A1 Method and Apparatus for implementing L2 VPNs on an IP Network 有权
标题翻译：在IP网络上实现L2 VPN的方法和装置
公开(公告)号：US20100329265A1
公开(公告)日：2010-12-30
申请号：US12492548
申请日：2009-06-26
申请人： Roger Lapuh , Mohnish Anumala
发明人： Roger Lapuh , Mohnish Anumala
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L12/4645 , H04L12/4679 , H04L45/66
摘要： MP-BGP VPN infrastructure based on IETF RFC 4364/2547 is used to configure a layer 2 VPN on an IP network. VRFs for the VPN are configured on Ethernet switches and service IP addresses are associated with each configured VRF. The service IP addresses are exchanged to enable VPN traffic to be encapsulated for transport over the IP network. To enable a L2 VPN to be established on the network, a VPN-VLAN ID will be configured for the L2 VPN and import/export route targets for the VPN-VLAN will be set in each VRF and UNI-VLAN that is part of the VPN. The VPN-VLAN will be announced to all PEs using MP-iBGP with export route targets set for this VPN-VLAN. The PE's control plane learns the VPN-VLAN on a logical port if the import RT matches the export RT received by the MP-iBGP control plane. Once the VPN-VLAN is learned on a logical port, the PE will perform MAC learning on that logical port and treat the logical port as if it were part of the L2 VLAN.
摘要翻译：基于IETF RFC 4364/2547的MP-BGP VPN基础设施用于在IP网络上配置第2层VPN。 VPN的VRF在以太网交换机上配置，服务IP地址与每个配置的VRF相关联。交换服务IP地址，使VPN流量能够被封装，以便通过IP网络进行传输。为了在网络上建立L2 VPN，将为L2 VPN配置VPN-VLAN ID，VPN-VLAN的导入/导出路由目标将在每个VRF和UNI-VLAN中设置，作为 VPN。 VPN-VLAN将使用MP-iBGP向所有PE发布，并为此VPN-VLAN设置导出路由目标。如果导入RT与MP-iBGP控制平面接收到的导出RT匹配，PE的控制面将在逻辑端口上学习VPN-VLAN。一旦在逻辑端口学到VPN-VLAN，PE将在该逻辑端口上执行MAC学习，并将该逻辑端口视为L2 VLAN的一部分。

10. 发明申请

US20100316056A1 TECHNIQUES FOR ROUTING DATA BETWEEN NETWORK AREAS 审中-公开
标题翻译：网路数据路由技术
公开(公告)号：US20100316056A1
公开(公告)日：2010-12-16
申请号：US12483690
申请日：2009-06-12
申请人： Paul Unbehagen , Roger Lapuh
发明人： Paul Unbehagen , Roger Lapuh
IPC分类号： H04L12/56
CPC分类号： H04L12/4625 , H04L12/4633 , H04L45/04 , H04L45/66
摘要： Techniques for routing data between network area are disclosed, In one particular exemplary embodiment, the techniques may be realized as a method for routing data between layer 2 network areas of backbone bridges comprising the steps of receiving data at a network element containing an internally terminated Network to Network Interface (NNI) for a plurality of network areas, identifying a destination address associated with the data, determining a network area of the plurality of network areas associated with the data, and performing one or more data flow treatments associated with the data using the internally terminated Network to Network Interface (NNI).
摘要翻译：公开了在网络区域之间路由数据的技术。在一个特定的示例性实施例中，可以将技术实现为用于在骨干网桥的第2层网络区域之间路由数据的方法，包括以下步骤：在包含内部终止的网络的网络元件处接收数据到多个网络区域的网络接口（NNI），识别与数据相关联的目的地地址，确定与数据相关联的多个网络区域的网络区域，以及使用与数据相关联的一个或多个数据流处理内部终止的网络到网络接口（NNI）。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式