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：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：US20150319094A1

公开(公告)日：2015-11-05

申请号：US14267813

申请日：2014-05-01

Applicant: Metaswitch Networks Ltd.

Inventor： Robert BROCKBANK ,  Alex POLLITT ,  Spike CURTIS ,  Shaun CRAMPTON

IPC: H04L12/851 ,  H04L12/24 ,  H04L12/721

CPC classification number: H04L12/6418 ,  H04L41/0672 ,  H04L41/5096 ,  H04L45/38 ,  H04L47/2483

Abstract: A controller node receives a list of a first plurality of flows programmed on a network switch. The controller node extracts a flow cookie value from a flow cookie data field of each flow in the first plurality of flows on the received list and calculates a session identifier on the basis of the extracted cookie values. At least one add flow command is transmitted from the controller node to the network switch to program a second plurality of flows on the network switch. The at least one add flow command comprises flow cookie values in the flow cookie data fields of each of the flows in the second plurality of flows which are set equal to the calculated session identifier. At least one delete flow command is transmitted from the controller node to the network switch to delete programming of the first plurality of flows on the network switch.

Abstract translation: 控制器节点接收在网络交换机上编程的第一多个流的列表。 控制器节点从接收到的列表上的第一多个流中的每个流的流量cookie数据字段提取流量cookie值，并且基于所提取的cookie值计算会话标识符。 至少一个添加流命令从控制器节点传送到网络交换机，以对网络交换机上的第二个多个流进行编程。 所述至少一个添加流命令包括被设置为等于所计算的会话标识符的第二多个流中的每个流的流cookie数据字段中的流cookie值。 至少一个删除流命令从控制器节点发送到网络交换机，以删除网络交换机上的第一多个流的编程。

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。