公开(公告)号：US10200495B2

公开(公告)日：2019-02-05

申请号：US15422487

申请日：2017-02-02

Applicant: Cisco Technology Inc.

Inventor： Francois Le Faucheur ,  Qi Wang

IPC: H04L29/06 ,  H04L29/08

Abstract: In one embodiment a system component in a content delivery network (CDN), the CDN including a request router and edge caches, the request router being operable to determine which edge cache should serve content to a client, the system competent including a processor, and a memory to store data used by the processor, wherein the processor is operative to receive a request for content from the client, and based on a decision to shut down a first edge cache after the client has already downloaded some of the content from the first edge cache, participate in a process to transfer the client from downloading the content from the first edge cache to downloading the content from a second edge cache in the middle of the client downloading the content so that the client continues downloading the content from the second edge cache. Related apparatus and methods are also described.

公开(公告)号：US20140325039A1

公开(公告)日：2014-10-30

申请号：US14330913

申请日：2014-07-14

Applicant: Cisco Technology, Inc.

Inventor： Wojciech Dec ,  William Mark Townsley ,  Francois Le Faucheur

IPC: H04L29/08

CPC classification number: H04L67/1002 ,  H04L41/0806 ,  H04L67/1027 ,  H04L67/125

Abstract: In one embodiment, for each port of an access node in an access-based computer network, one access server of a plurality of access servers is configured as a preferred access server for that port. Upon receiving a session initiation message at a particular port, the access node forwards the session initiation message to one or more of the access servers based on the configured preferred access server for the particular port.

Abstract translation: 在一个实施例中，对于基于访问的计算机网络中的接入节点的每个端口，多个接入服务器中的一个接入服务器被配置为该端口的优选接入服务器。 在特定端口接收到会话发起消息时，接入节点基于针对特定端口的配置的优选接入服务器将会话发起消息转发到一个或多个接入服务器。

公开(公告)号：US09491234B2

公开(公告)日：2016-11-08

申请号：US14330913

申请日：2014-07-14

Applicant: Cisco Technology, Inc.

Inventor： Wojciech Dec ,  William Mark Townsley ,  Francois Le Faucheur

IPC: G06F15/173 ,  H04L29/08 ,  H04L12/24

CPC classification number: H04L67/1002 ,  H04L41/0806 ,  H04L67/1027 ,  H04L67/125

Abstract: In one embodiment, for each port of an access node in an access-based computer network, one access server of a plurality of access servers is configured as a preferred access server for that port. Upon receiving a session initiation message at a particular port, the access node forwards the session initiation message to one or more of the access servers based on the configured preferred access server for the particular port.

Abstract translation: 在一个实施例中，对于基于访问的计算机网络中的接入节点的每个端口，多个接入服务器中的一个接入服务器被配置为该端口的优选接入服务器。 在特定端口接收到会话发起消息时，接入节点基于针对特定端口的配置的优选接入服务器将会话发起消息转发到一个或多个接入服务器。

公开(公告)号：US08767532B2

公开(公告)日：2014-07-01

申请号：US13661529

申请日：2012-10-26

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Francois Le Faucheur ,  Anna Charny

IPC: H04L12/26

CPC classification number: H04L45/00 ,  H04L12/4633 ,  H04L12/5691 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

Abstract: In one embodiment, a set of tunnels is determined that traverse a particular link connected to an intermediate node in a network. The intermediate node computes, in a coordinated path computation, paths for tunnels of the set of tunnels that do not include the particular link. The coordinated path computation considers each of the tunnels of the set of tunnels. The intermediate node selects one or more tunnels of the set of tunnels for preemption. The one or more tunnels are selected as tunnels that are reroutable by respective head-end nodes of the one or more other tunnels. Notifications are sent to one or more other intermediate nodes that inform the one or more other intermediate nodes of the one or more tunnels selected for preemption.

Abstract translation: 在一个实施例中，确定穿过连接到网络中的中间节点的特定链路的一组隧道。 中间节点在协调路径计算中计算不包括特定链路的隧道组的隧道的路径。 协调路径计算考虑隧道组中的每个隧道。 中间节点选择该组隧道中的一个或多个隧道进行抢占。 一个或多个隧道被选择为可由一个或多个其他隧道的相应头端节点重新路由的隧道。 通知被发送到一个或多个其他中间节点，其通知一个或多个其他中间节点选择用于抢占的一个或多个隧道。

公开(公告)号：US20130051224A1

公开(公告)日：2013-02-28

申请号：US13661529

申请日：2012-10-26

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Francois Le Faucheur ,  Anna Charny

IPC: H04L12/28 ,  H04L29/14

CPC classification number: H04L45/00 ,  H04L12/4633 ,  H04L12/5691 ,  H04L45/22 ,  H04L45/28 ,  H04L45/50

Abstract: In one embodiment, a set of tunnels is determined that traverse a particular link connected to an intermediate node in a network. The intermediate node computes, in a coordinated path computation, paths for tunnels of the set of tunnels that do not include the particular link. The coordinated path computation considers each of the tunnels of the set of tunnels. The intermediate node selects one or more tunnels of the set of tunnels for preemption. The one or more tunnels are selected as tunnels that are reroutable by respective head-end nodes of the one or more other tunnels. Notifications are sent to one or more other intermediate nodes that inform the one or more other intermediate nodes of the one or more tunnels selected for preemption.

Abstract translation: 在一个实施例中，确定穿过连接到网络中的中间节点的特定链路的一组隧道。 中间节点在协调路径计算中计算不包括特定链路的隧道组的隧道的路径。 协调路径计算考虑隧道组中的每个隧道。 中间节点选择该组隧道中的一个或多个隧道进行抢占。 一个或多个隧道被选择为可由一个或多个其他隧道的相应头端节点重新路由的隧道。 通知被发送到一个或多个其他中间节点，其通知一个或多个其他中间节点选择用于抢占的一个或多个隧道。