公开(公告)号：US20150312128A1

公开(公告)日：2015-10-29

申请号：US14262609

申请日：2014-04-25

Applicant: Metaswitch Networks Ltd

Inventor： Casey DAVENPORT ,  Simon WINGROVE ,  Alex POLLITT ,  Spike CURTIS ,  Shaun CRAMPTON ,  Steve BALLS ,  Fiona CORDEN

IPC: H04L12/26 ,  H04L12/751

CPC classification number: H04L45/02 ,  H04L45/64

Abstract: Measures for processing data in a packet-switched network. A first device is configured to snoop control packets of a predetermined control plane protocol in the network. The predetermined control plane protocol is operated by a plurality of other devices in the network to obtain Layer 2 information on the basis of known Layer 3 information. The first device does not operate the predetermined control plane protocol in the network. At the first device, in response to identifying that a given snooped packet was generated according to the predetermined control plane protocol. Layer 3 information associated with a second device in the plurality is extracted from the given snooped control plane protocol packet on the basis of known Layer 2 information associated with the second device. The second device is connected to the first device.

Abstract translation: 在分组交换网络中处理数据的措施。 第一设备被配置为窥探网络中预定控制平面协议的控制分组。 预定的控制平面协议由网络中的多个其他设备操作以基于已知的第3层信息获得第2层信息。 第一设备不在网络中操作预定的控制平面协议。 在第一设备处，响应于根据预定的控制平面协议识别给定的窥探分组被生成。 基于与第二设备相关联的已知第二层信息，从给定的窥探控制平面协议分组中提取与多个中的第二设备相关联的第3层信息。 第二个设备连接到第一个设备。

公开(公告)号：US20160065696A1

公开(公告)日：2016-03-03

申请号：US14473680

申请日：2014-08-29

Applicant: Metaswitch Networks Ltd

Inventor： Fiona CORDEN ,  Steve BALLS ,  Alex POLLITT ,  Shaun CRAMPTON ,  Jonathan HARRISON ,  Jeff ROLLINS

IPC: H04L29/06 ,  H04L12/713 ,  H04L12/715

CPC classification number: H04L69/08 ,  H04L45/586 ,  H04L45/64 ,  H04L67/2814 ,  H04L67/327

Abstract: Measures for transferring routing protocol information between a software defined network and one or more external networks are provided. A control node in a software defined network (SDN) is configured to maintain a protocol information database comprising routing protocol information for one or more switching nodes in the SDN. In response to detecting occurrence of a predetermined trigger event, the control node modifies the routing protocol information in the protocol information database, and determines whether the one or more switching nodes include an edge switching node. In response to the determination, a routing protocol message is transmitted from the control node to the edge switching node for forwarding via an external network interface. The routing protocol message includes data generated on the basis of the modified routing protocol information.

Abstract translation: 提供了在软件定义的网络和一个或多个外部网络之间传送路由协议信息的措施。 软件定义网络（SDN）中的控制节点被配置为维护包括SDN中的一个或多个交换节点的路由协议信息的协议信息数据库。 响应于检测到预定触发事件的发生，控制节点修改协议信息数据库中的路由协议信息，并确定一个或多个交换节点是否包括边缘交换节点。 响应于该确定，路由协议消息从控制节点发送到边缘交换节点，以经由外部网络接口转发。 路由协议消息包括基于修改的路由协议信息生成的数据。

公开(公告)号：US20150312149A1

公开(公告)日：2015-10-29

申请号：US14262631

申请日：2014-04-25

Applicant: Metaswitch Networks Ltd

Inventor： Casey DAVENPORT ,  Simon WINGROVE ,  Alex POLLITT ,  Spike CURTIS ,  Shaun CRAMPTON ,  Steve BALLS ,  Fiona CORDEN

IPC: H04L12/741 ,  H04L12/751

CPC classification number: H04L45/02 ,  H04L45/42 ,  H04L45/74

Abstract: Measures for processing data in a packet-switched network. At a first device in the network, a packet transmitted from a second device in the network is received. The received packet comprising an Internet Protocol (IP) address for a third device in the network. On the basis of the IP address for the third device comprised in the received data packet, lookup in an IP routing table of the second device is initiated to obtain a next-hop address for the received packet. The obtained next-hop IP address is determined to be an IP address of a device connected to the first device.

Abstract translation: 在分组交换网络中处理数据的措施。 在网络中的第一设备处，从网络中的第二设备发送的分组被接收。 所接收的分组包括网络中第三设备的因特网协议（IP）地址。 基于接收到的数据包中包含的第三设备的IP地址，启动第二设备的IP路由表中的查找以获得接收到的分组的下一跳地址。 获得的下一跳IP地址被确定为连接到第一设备的设备的IP地址。

公开(公告)号：US20150312129A1

公开(公告)日：2015-10-29

申请号：US14262639

申请日：2014-04-25

Applicant: Metaswitch Networks Ltd

Inventor： Casey DAVENPORT ,  Simon WINGROVE ,  Alex POLLITT ,  Spike CURTIS ,  Shaun CRAMPTON ,  Steve BALLS ,  Fiona CORDEN

IPC: H04L12/26 ,  H04L12/751

CPC classification number: H04L45/02 ,  H04L45/26 ,  H04L45/64

Abstract: Measures for processing data in a packet-switched network. At a first device in the network, an echo request packet is transmitted into the network. The echo request packet comprises a predetermined identifier. An echo response packet is received from a second device in the network. In response to the received echo response packet comprising the predetermined identifier, the received echo response packet is identified as a packet generated on the basis of an echo request packet originated from the first device, and an Internet Protocol (IP) address comprised in the received echo response packet is determined to be an IP address of the second device.

Abstract translation: 在分组交换网络中处理数据的措施。 在网络中的第一设备处，将回波请求分组发送到网络中。 回波请求分组包括预定的标识符。 从网络中的第二设备接收回应响应分组。 响应于包含预定标识符的接收到的回波响应分组，接收到的回波响应分组被识别为基于从第一设备发起的回波请求分组生成的分组，以及包括在接收到的互联网协议（IP）地址 回波响应分组被确定为第二设备的IP地址。