公开(公告)号：US07948994B2

公开(公告)日：2011-05-24

申请号：US10883070

申请日：2004-06-30

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04L12/28 ,  G06F15/16

CPC分类号： H04L45/586 ,  H04L12/4641 ,  H04L12/4679 ,  H04L45/00 ,  H04L45/02 ,  H04L45/54 ,  H04L45/745

摘要： A method and apparatus for routing and forwarding between virtual routers is described. A method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address spaces and separate routing tables, distributing a set of one or more routes from the first virtual router to the second virtual router, wherein a first of the set of routes identifies the first virtual router as a next hop of the first route, said first route including a destination, and downloading to a set of one or more forwarding tables, the destination and the next hop.

摘要翻译： 描述了用于在虚拟路由器之间路由和转发的方法和装置。 单个网络元件中的方法包括将第一虚拟路由器对准到第二虚拟路由器，其中第一和第二虚拟路由器具有单独的地址空间和单独的路由表，将一组一条或多条路由从第一虚拟路由器分发到 第二虚拟路由器，其中路由集合中的第一路由将第一虚拟路由器标识为第一路由的下一跳，所述第一路由包括目的地，并且下载到一组或多个转发表，目的地和下一个 跳。

公开(公告)号：US20110194567A1

公开(公告)日：2011-08-11

申请号：US13087337

申请日：2011-04-14

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04L12/56

CPC分类号： H04L45/586 ,  H04L12/4641 ,  H04L12/4679 ,  H04L45/00 ,  H04L45/02 ,  H04L45/54 ,  H04L45/745

摘要： A method and apparatus for routing and forwarding between virtual routers is described. A method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address spaces and separate routing tables, distributing a set of one or more routes from the first virtual router to the second virtual router, wherein a first of the set of routes identifies the first virtual router as a next hop of the first route, said first route including a destination, and downloading to a set of one or more forwarding tables, the destination and the next hop.

摘要翻译： 描述了用于在虚拟路由器之间路由和转发的方法和装置。 单个网络元件中的方法包括将第一虚拟路由器对准到第二虚拟路由器，其中第一和第二虚拟路由器具有单独的地址空间和单独的路由表，将一组一条或多条路由从第一虚拟路由器分发到 第二虚拟路由器，其中路由集合中的第一路由将第一虚拟路由器标识为第一路由的下一跳，所述第一路由包括目的地，并且下载到一组或多个转发表，目的地和下一个 跳。

公开(公告)号：US06590868B2

公开(公告)日：2003-07-08

申请号：US09873037

申请日：2001-06-02

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04J314

CPC分类号： H04L45/28 ,  H04L45/02 ,  H04L45/026 ,  H04L45/028 ,  H04L45/26

摘要： A method and apparatus for the restart communication between network elements are described. In one embodiment, a method for restarting communication between a first network element and a second network element in a network comprises transmitting a modified hello packet to the second network element. The modified hello packet includes a time value that is greater than a time value of a hello packet that was transmitted to the second network element prior to International-System-International-System (IS-IS) network communications in the first network element becoming non-operational. The method also including updating routing information within the first network element through transmission of Complete Sequence Number Packets of the IS-IS standard to the second network element, independent of tearing down a communication link between the first network element and the second network element after IS-IS network communications in the first network element have become non-operational.

公开(公告)号：US07765300B2

公开(公告)日：2010-07-27

申请号：US10957446

申请日：2004-09-30

申请人： Thomas J. Meehan ,  Naiming Shen ,  Liming Wei

发明人： Thomas J. Meehan ,  Naiming Shen ,  Liming Wei

IPC分类号： G06F15/16 ,  G06F15/173 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L12/185 ,  H04L12/5601 ,  H04L2012/5615

摘要： Protocols for messaging between a centralized network management system and other entities are described. According to one embodiment, in response to a request of a subscriber for joining a multicast group received at a centralized aggregation server, the centralized aggregation server transmits a port subscriber announcement (PSA) message to substantially all subscriber access multiplexers over an access network. The PSA message includes an identifier (ID) of the subscriber. In response to the PSA message, a subscriber access multiplexer having a subscriber matching the ID of the subscriber in the PSA message identifies a user port corresponding to the subscriber and applies a local service policy to the identified user port. Subsequent multicast messages destined to the subscriber are delivered by the subscriber access multiplexer to the subscriber based on the local service policy corresponding to the receiving subscriber without having the aggregation server handling the service policy of the receiving subscriber. Other methods and apparatuses are also described.

摘要翻译： 描述了集中式网络管理系统与其他实体之间的消息传递协议。 根据一个实施例，响应于用户加入在集中式聚合服务器处接收的组播组的请求，集中式聚合服务器通过接入网络向基本上所有用户接入复用器发送端口用户通告（PSA）消息。 PSA消息包括用户的标识符（ID）。 响应于PSA消息，具有与PSA消息中的用户的ID匹配的用户的用户接入复用器标识与订户对应的用户端口，并将本地服务策略应用于所识别的用户端口。 基于与接收用户对应的本地服务策略，发往用户的后续多播消息由用户接入复用器传送给用户，而不使聚合服务器处理接收用户的服务策略。 还描述了其它方法和装置。

公开(公告)号：US07539131B2

公开(公告)日：2009-05-26

申请号：US10975201

申请日：2004-10-27

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04L12/26 ,  H04L12/28

CPC分类号： H04L45/28 ,  H04L45/02 ,  H04L45/22 ,  H04L45/50

摘要： Methods and apparatus for rerouting network traffic are described herein. In one embodiment, an example of process includes maintaining as a part of a routing table of a network element information regarding one or more backup links leading to a node using label switched protocols (LSPs), the node being adjacent to the network element, and in response to a failure of a primary link coupling the network element to the node, the network element rerouting network traffic to the node via the one or more backup paths without having to notifying and waiting for a response from a headend node that originates the network traffic. Other methods and apparatuses are also described.

摘要翻译： 本文描述了重新路由网络流量的方法和装置。 在一个实施例中，过程的示例包括将与网络元件的路由表的一部分相关联的信息保存在使用标签交换协议（LSP）的一个或多个备用链路上，所述备份链路与所述网元相邻，以及 响应于将网络元件耦合到节点的主链路的故障，网络元件经由一个或多个备份路径将网络流量重新路由到节点，而不必通知并等待来自始发网络的前端节点的响应 交通。 还描述了其它方法和装置。

公开(公告)号：US20050152370A1

公开(公告)日：2005-07-14

申请号：US10957446

申请日：2004-09-30

申请人： Thomas Meehan ,  Naiming Shen ,  Liming Wei

发明人： Thomas Meehan ,  Naiming Shen ,  Liming Wei

IPC分类号： H04L12/18 ,  H04L12/56

CPC分类号： H04L12/185 ,  H04L12/5601 ,  H04L2012/5615

摘要： Protocols for messaging between a centralized network management system and other entities are described. According to one embodiment, in response to a request of a subscriber for joining a multicast group received at a centralized aggregation server, the centralized aggregation server transmits a port subscriber announcement (PSA) message to substantially all subscriber access multiplexers over an access network. The PSA message includes an identifier (ID) of the subscriber. In response to the PSA message, a subscriber access multiplexer having a subscriber matching the ID of the subscriber in the PSA message identifies a user port corresponding to the subscriber and applies a local service policy to the identified user port. Subsequent multicast messages destined to the subscriber are delivered by the subscriber access multiplexer to the subscriber based on the local service policy corresponding to the receiving subscriber without having the aggregation server handling the service policy of the receiving subscriber. Other methods and apparatuses are also described.

摘要翻译： 描述了集中式网络管理系统与其他实体之间的消息传递协议。 根据一个实施例，响应于用户加入在集中式聚合服务器处接收到的多播组的请求，集中式聚合服务器通过接入网向基本上所有用户接入复用器发送端口用户通告（PSA）消息。 PSA消息包括用户的标识符（ID）。 响应于PSA消息，具有与PSA消息中的用户的ID匹配的用户的用户接入复用器标识与订户对应的用户端口，并将本地服务策略应用于所识别的用户端口。 基于与接收用户对应的本地服务策略，发往用户的后续多播消息由用户接入复用器传送给用户，而不使聚合服务器处理接收用户的服务策略。 还描述了其它方法和装置。

公开(公告)号：US06907039B2

公开(公告)日：2005-06-14

申请号：US10265789

申请日：2002-10-07

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04L12/46 ,  H04L12/56 ,  H04J12/56

CPC分类号： H04L45/586 ,  H04L12/4641 ,  H04L12/4679 ,  H04L45/00 ,  H04L45/02 ,  H04L45/54 ,  H04L45/745

摘要： A method and apparatus for routing and forwarding between virtual routers is described. A method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address spaces and separate routing tables, distributing a set of one or more routes from the first virtual router to the second virtual router, wherein a first of the set of routes identifies the first virtual router as a next hop of the first route, said first route including a destination, and downloading to a set of one or more forwarding tables, the destination and the next hop.

摘要翻译： 描述了用于在虚拟路由器之间路由和转发的方法和装置。 单个网络元件中的方法包括将第一虚拟路由器对准到第二虚拟路由器，其中第一和第二虚拟路由器具有单独的地址空间和单独的路由表，将一组一条或多条路由从第一虚拟路由器分发到 第二虚拟路由器，其中路由集合中的第一路由将第一虚拟路由器标识为第一路由的下一跳，所述第一路由包括目的地，并且下载到一组或多个转发表，目的地和下一个 跳。

公开(公告)号：US20120039333A1

公开(公告)日：2012-02-16

申请号：US13281194

申请日：2011-10-25

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04L12/56

CPC分类号： H04L45/586 ,  H04L12/4641 ,  H04L12/4679 ,  H04L45/00 ,  H04L45/02 ,  H04L45/54 ,  H04L45/745

摘要： A method and apparatus for routing and forwarding between virtual routers is described. A method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address spaces and separate routing tables, distributing a set of one or more routes from the first virtual router to the second virtual router, wherein a first of the set of routes identifies the first virtual router as a next hop of the first route, said first route including a destination, and downloading to a set of one or more forwarding tables, the destination and the next hop.

摘要翻译： 描述了用于在虚拟路由器之间路由和转发的方法和装置。 单个网络元件中的方法包括将第一虚拟路由器对准到第二虚拟路由器，其中第一和第二虚拟路由器具有单独的地址空间和单独的路由表，将一组一条或多条路由从第一虚拟路由器分发到 第二虚拟路由器，其中路由集合中的第一路由将第一虚拟路由器标识为第一路由的下一跳，所述第一路由包括目的地，并且下载到一组或多个转发表，目的地和下一个 跳。

公开(公告)号：US08045547B2

公开(公告)日：2011-10-25

申请号：US10883425

申请日：2004-06-30

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04J1/16 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L45/586 ,  H04L12/4641 ,  H04L12/4679 ,  H04L45/00 ,  H04L45/02 ,  H04L45/54 ,  H04L45/745

摘要： A method and apparatus for routing and forwarding between virtual routers is described. A method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address spaces and separate routing tables, distributing a set of one or more routes from the first virtual router to the second virtual router, wherein a first of the set of routes identifies the first virtual as a next hop of the first route, said first route including a destination, and downloading to a set of one or more forwarding tables, the destination and the next hop.

摘要翻译： 描述了用于在虚拟路由器之间路由和转发的方法和装置。 单个网络元件中的方法包括将第一虚拟路由器对准到第二虚拟路由器，其中第一和第二虚拟路由器具有单独的地址空间和单独的路由表，将一组一条或多条路由从第一虚拟路由器分发到 第二虚拟路由器，其中，所述一组路由中的第一个将所述第一虚拟标识为所述第一路由的下一跳，所述第一路由包括目的地，并且下载到一组或多个转发表，所述目的地和下一跳 。

公开(公告)号：US07715381B2

公开(公告)日：2010-05-11

申请号：US10883109

申请日：2004-06-30

申请人： Naiming Shen

发明人： Naiming Shen

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L45/586 ,  H04L12/4641 ,  H04L12/4679 ,  H04L45/00 ,  H04L45/02 ,  H04L45/54 ,  H04L45/745

摘要： A method and apparatus for routing and forwarding between virtual routers is described. A method in a single network element comprises peering a first virtual router to a second virtual router, wherein the first and second virtual routers have separate address spaces and separate routing tables, distributing a set of one or more routes from the first virtual router to the second virtual router, wherein a first of the set of routes identifies the first virtual router as a next hop of the first route, said first route including a destination, and downloading to a set of one or more forwarding tables, the destination and the next hop.

摘要翻译： 描述了用于在虚拟路由器之间路由和转发的方法和装置。 单个网络元件中的方法包括将第一虚拟路由器对准到第二虚拟路由器，其中第一和第二虚拟路由器具有单独的地址空间和单独的路由表，将一组一条或多条路由从第一虚拟路由器分发到 第二虚拟路由器，其中路由集合中的第一路由将第一虚拟路由器标识为第一路由的下一跳，所述第一路由包括目的地，并且下载到一组或多个转发表，目的地和下一个 跳。