公开(公告)号：WO2008038072A2

公开(公告)日：2008-04-03

申请号：PCT/IB2007000526

申请日：2007-02-26

Applicant: CISCO TECH INC ,  RIBIERE VINCENT ,  ROY ABHAY ,  THUBERT PASCAL ,  WETTERWALD PATRICK

Inventor： RIBIERE VINCENT ,  ROY ABHAY ,  THUBERT PASCAL ,  WETTERWALD PATRICK

IPC: H04L12/28 ,  H04L12/56

CPC classification number: H04L45/025 ,  H04W8/005 ,  H04W48/08 ,  H04W76/02 ,  H04W88/16 ,  H04W92/24

Abstract: A system for providing a tree topology for a network having an interior gateway protocol. A first router receives a hello message from all connected routers in the network. The hello messages include tree topology information. The first router then uses the tree topology information to determine a parent of the router. The first router then establishes connections with directly connected routers at the same level in the tree topology. The first router also generates link messages that include all of the prefixes for children of the first router and broadcasts the link messages.

Abstract translation: 一种用于为具有内部网关协议的网络提供树形拓扑的系统。 第一个路由器从网络中的所有连接的路由器收到一条hello消息。 hello消息包括树形拓扑信息。 然后，第一个路由器使用树形拓扑信息来确定路由器的父节点。 然后，第一个路由器建立与树形拓扑中同一级别的直连路由器的连接。 第一路由器还产生包括第一路由器的子节点的所有前缀的链路消息，并且广播链路消息。

公开(公告)号：WO2010030334A1

公开(公告)日：2010-03-18

申请号：PCT/US2009/005028

申请日：2009-09-08

Applicant: CISCO TECHNOLOGY, INC. ,  BANERJEE, Ayan ,  FARINACCI, Dino ,  SIVARAMU, Raghava ,  ROY, Abhay ,  VENUGOPAL, Nair ,  SANE, Sanjay

Inventor： BANERJEE, Ayan ,  FARINACCI, Dino ,  SIVARAMU, Raghava ,  ROY, Abhay ,  VENUGOPAL, Nair ,  SANE, Sanjay

IPC: G06F15/16

CPC classification number: H04L12/4675 ,  H04L45/00 ,  H04L45/66 ,  H04L47/10 ,  H04L47/15 ,  H04L47/2408

Abstract: In one embodiment, a method includes receiving information on layer 2 topologies at a network device in a core network, mapping one or more Virtual Local Area Networks (VLANs) to the layer 2 topologies to provide differentiated services in said layer 2 topologies, defining multiple paths for each of the layer 2 topologies, and forwarding a packet received at the network device on one of the multiple paths. An apparatus for providing differentiated services in layer 2 topologies is also disclosed.

Abstract translation: 在一个实施例中，一种方法包括在核心网络中的网络设备处接收关于第2层拓扑的信息，将一个或多个虚拟局域网（VLAN）映射到第2层拓扑，以在所述层2拓扑中提供差异化​​服务，定义多个 用于每个第二层拓扑的路径，以及在所述多个路径之一上转发在所述网络设备处接收到的分组。 还公开了一种用于在第2层拓扑中提供差异化​​服务的装置。

公开(公告)号：WO2008038072A3

公开(公告)日：2008-04-03

申请号：PCT/IB2007/000526

申请日：2007-02-26

Applicant: CISCO TECHNOLOGY, INC. ,  RIBIERE, Vincent ,  ROY, Abhay ,  THUBERT, Pascal ,  WETTERWALD, Patrick

Inventor： RIBIERE, Vincent ,  ROY, Abhay ,  THUBERT, Pascal ,  WETTERWALD, Patrick

IPC: H04Q7/24

Abstract: A system for providing a tree topology for a network having an interior gateway protocol. A first router receives a hello message (305) from all connected routers in the network. The hello messages include tree topology information (310). The first router then uses the tree topology information to determine a parent of the router (315). The first router then establishes connections with directly connected routes at the same level in the tree topology. The first router also generates link messages that include all of the prefixes for children of the first router and broadcasts the link messages.

公开(公告)号：WO2008121452A1

公开(公告)日：2008-10-09

申请号：PCT/US2008/054235

申请日：2008-02-19

Applicant: CISCO TECHNOLOGY, INC. ,  MIRTORABI, Sina ,  ROY, Abhay

Inventor： MIRTORABI, Sina ,  ROY, Abhay

IPC: H04L12/50

CPC classification number: H04L45/00 ,  H04L29/12028 ,  H04L45/04 ,  H04L45/52 ,  H04L61/103 ,  H04L69/16 ,  H04L69/167

Abstract: In one embodiment, a method includes receiving a neighbor discovery message and a border routing message through an interface at a particular router. The interface communicates with a border network segment between first nodes routing with IPv6 using a first routing protocol and different second nodes routing using a different routing protocol. The messages are received from an alien router. The border routing message includes foreign routing data that indicates a route amoung the second nodes. If the alien router's interface on the border segment does not have a global IPv6 address, then a fictive IPv6 address is generated, which includes a global prefix of an IPv6 address for the particular router and an interface identifier associated with the alien router. The fictive IPv6 address and the foreign routing data are inserted into a domain scope external advertisement message that is sent to the first nodes.

Abstract translation: 在一个实施例中，一种方法包括通过特定路由器上的接口接收邻居发现消息和边界路由消息。 该接口使用第一路由协议和不同的第二节点使用不同的路由协议路由与第一节点之间的IPv6路由与边界网段进行通信。 消息是从异地路由器接收的。 边界路由消息包括指示第二节点之间的路由的外部路由数据。 如果外来路由器边界段的接口没有全局IPv6地址，则会产生一个虚构的IPv6地址，其中包括特定路由器的IPv6地址的全局前缀以及与异步路由器相关联的接口标识符。 将虚拟IPv6地址和外部路由数据插入发送到第一个节点的域范围外部广告消息中。

公开(公告)号：WO2007130937A2

公开(公告)日：2007-11-15

申请号：PCT/US2007/067870

申请日：2007-05-01

Applicant: CISCO TECHNOLOGY, INC., ET AL. ,  PATEL, Alpesh ,  ROY, Abhay ,  KORIPALLI, Rajeev ,  ZHANG, Kui ,  JOSHI, Praveen ,  APPALA, Syam Sundar

Inventor： PATEL, Alpesh ,  ROY, Abhay ,  KORIPALLI, Rajeev ,  ZHANG, Kui ,  JOSHI, Praveen ,  APPALA, Syam Sundar

IPC: H04L12/28

CPC classification number: H04L45/02 ,  H04L45/308

Abstract: A data processing apparatus comprises instructions to perform sending and receiving one or more messages conforming to a network routing protocol, such as Open Shortest Path First (OSPF); obtaining one or more information elements that specify one or more capabilities of the apparatus; creating a particular routing protocol message comprising an opaque advertisement that includes the one or more information elements; and sending the particular message on one of the network interfaces. For example, a router or switch that implements a network routing protocol can use OSPF Opaque Link State Advertisements to advertise and discover services and capabilities of other routers or switches.

Abstract translation: 数据处理装置包括执行发送和接收符合诸如开放最短路径优先（OSPF）的网络路由协议的一个或多个消息的指令; 获得指定所述设备的一个或多个能力的一个或多个信息元素; 创建包括包含所述一个或多个信息元素的不透明广告的特定路由协议消息; 并在其中一个网络接口上发送特定消息。 例如，实现网络路由协议的路由器或交换机可以使用OSPF不透明链路状态广告来发布和发现其他路由器或交换机的服务和功能。

公开(公告)号：WO2007130937A3

公开(公告)日：2008-11-20

申请号：PCT/US2007067870

申请日：2007-05-01

Applicant: CISCO TECH INC ,  PATEL ALPESH ,  ROY ABHAY ,  KORIPALLI RAJEEV ,  ZHANG KUI ,  JOSHI PRAVEEN ,  APPALA SYAM SUNDAR

Inventor： PATEL ALPESH ,  ROY ABHAY ,  KORIPALLI RAJEEV ,  ZHANG KUI ,  JOSHI PRAVEEN ,  APPALA SYAM SUNDAR

IPC: G06F15/173 ,  H04J3/16 ,  H04J3/22 ,  H04L12/28

CPC classification number: H04L45/02 ,  H04L45/308

Abstract: A data processing apparatus comprises instructions to perform sending and receiving one or more messages conforming to a network routing protocol, such as Open Shortest Path First (OSPF); obtaining one or more information elements that specify one or more capabilities of the apparatus; creating a particular routing protocol message comprising an opaque advertisement that includes the one or more information elements; and sending the particular message on one of the network interfaces. For example, a router or switch that implements a network routing protocol can use OSPF Opaque Link State Advertisements to advertise and discover services and capabilities of other routers or switches.

Abstract translation: 数据处理装置包括执行发送和接收符合诸如开放最短路径优先（OSPF）的网络路由协议的一个或多个消息的指令; 获得指定所述装置的一个或多个能力的一个或多个信息元素; 创建包括包含所述一个或多个信息元素的不透明广告的特定路由协议消息; 并在一个网络接口上发送特定消息。 例如，实现网络路由协议的路由器或交换机可以使用OSPF不透明链路状态广告来通告和发现其他路由器或交换机的服务和功能。