公开(公告)号：US20100008361A1

公开(公告)日：2010-01-14

申请号：US12169062

申请日：2008-07-08

申请人： Jim Guichard ,  Bruce S. Davie ,  David Ward

发明人： Jim Guichard ,  Bruce S. Davie ,  David Ward

IPC分类号： H04L12/56

CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L45/04

摘要： According to one aspect of the present invention, a method includes obtaining a first advertisement at a first provider edge (PE) device from a first customer edge (CE) device that is associated with a virtual private network, and sending a second advertisement on a control plane path associated with a border gateway protocol after obtaining the first advertisement. The first PE device has a routing and forwarding table. The first advertisement identifies a plurality of local routes associated with the first VPN, and includes a first indication that information relating to the plurality of local routes is not to be stored in the routing and forwarding table. The second advertisement identifies the local routes, an address of the first CE device, and the first CE device as a next hop.

摘要翻译： 根据本发明的一个方面，一种方法包括从与虚拟专用网络相关联的第一客户边缘（CE）设备获取在第一提供者边缘（PE）设备处的第一广告，并且在第 在获得第一广告之后与边界网关协议相关联的控制平面路径。 第一个PE设备具有路由和转发表。 第一广告识别与第一VPN相关联的多个本地路由，并且包括与多个本地路由有关的信息不存储在路由和转发表中的第一指示。 第二个广告标识本地路由，第一个CE设备的地址和第一个CE设备作为下一跳。

公开(公告)号：US08098663B2

公开(公告)日：2012-01-17

申请号：US12169062

申请日：2008-07-08

申请人： Jim Guichard ,  Bruce S. Davie ,  David Ward

发明人： Jim Guichard ,  Bruce S. Davie ,  David Ward

IPC分类号： H04L12/28

CPC分类号： H04L45/50 ,  H04L45/00 ,  H04L45/04

摘要： According to one aspect of the present invention, a method includes obtaining a first advertisement at a first provider edge (PE) device from a first customer edge (CE) device that is associated with a virtual private network, and sending a second advertisement on a control plane path associated with a border gateway protocol after obtaining the first advertisement. The first PE device has a routing and forwarding table. The first advertisement identifies a plurality of local routes associated with the first VPN, and includes a first indication that information relating to the plurality of local routes is not to be stored in the routing and forwarding table. The second advertisement identifies the local routes, an address of the first CE device, and the first CE device as a next hop.

摘要翻译： 根据本发明的一个方面，一种方法包括从与虚拟专用网络相关联的第一客户边缘（CE）设备获取在第一提供者边缘（PE）设备处的第一广告，并且在第 在获得第一广告之后与边界网关协议相关联的控制平面路径。 第一个PE设备具有路由和转发表。 第一广告识别与第一VPN相关联的多个本地路由，并且包括与多个本地路由有关的信息不存储在路由和转发表中的第一指示。 第二个广告标识本地路由，第一个CE设备的地址和第一个CE设备作为下一跳。

公开(公告)号：US08341288B2

公开(公告)日：2012-12-25

申请号：US10972318

申请日：2004-10-22

申请人： Bruce S. Davie ,  Subhasri Dhesikan ,  Michael V. DiBiasio ,  William Foster ,  David R. Oran

发明人： Bruce S. Davie ,  Subhasri Dhesikan ,  Michael V. DiBiasio ,  William Foster ,  David R. Oran

IPC分类号： G06F15/173

CPC分类号： G06Q10/10

摘要： A technique enables resources to be shared among data flows that may have different senders (sources) and/or different receivers (destinations) in a data network. Identifiers are associated with data flows and used to indicate whether resources may be shared between data flows. The identifiers are carried in signaling messages used to reserve resources for data flows. An existing data flow that is associated with an identifier that matches an identifier associated with a new data flow is allowed to share resources its resources with the new data flow.

摘要翻译： 一种技术使资源可以在数据网络中可能具有不同发送者（来源）和/或不同接收者（目的地）的数据流之间共享。 标识符与数据流相关联，用于指示资源是否可以在数据流之间共享。 标识符在用于为数据流保留资源的信令消息中携带。 与与新数据流相关联的标识符相关联的标识符相关联的现有数据流被允许与新数据流共享资源其资源。

公开(公告)号：US07281043B1

公开(公告)日：2007-10-09

申请号：US09871108

申请日：2001-05-31

申请人： Bruce S. Davie

发明人： Bruce S. Davie

IPC分类号： G06F15/173 ,  H04L12/28 ,  G08C15/00

CPC分类号： H04L47/724 ,  H04L47/125 ,  H04L47/2441 ,  H04L47/70 ,  H04L47/765 ,  H04L47/828

摘要： A system associates multiple discrete traffic flows within a computer network into a group, and allows the traffic flows corresponding to a given group to share a single set of resources. A sourcing entity preferably generates a locally unique resource identifier (ID) for use in requesting a reservation of network resources for a first traffic flow or session. Intermediate network devices within the computer network reserve a set of resources and associate the reservation with the specified resource ID. The sourcing entity may then re-use this same resource ID in a subsequent request to reserve resources for a second traffic flow or session. The intermediate network devices determine that a reservation made by the sourcing entity and associated with this resource ID already exists and, rather than reserve additional or further resources for the second traffic flow or session, share the previously reserved resources between the two traffic flows or sessions.

摘要翻译： 系统将计算机网络内的多个离散业务流关联成一组，并允许与给定组对应的业务流共享一组资源。 采购实体优选地生成用于请求第一业务流或会话的网络资源的预留的本地唯一资源标识符（ID）。 计算机网络中的中间网络设备保留一组资源，并将预留与指定的资源ID相关联。 然后，采购实体可以在后续请求中重新使用相同的资源ID来为第二业务流或会话预留资源。 中间网络设备确定由采购实体做出的并与该资源ID相关联的预留已经存在，而不是为第二业务流或会话预留额外的或进一步的资源，在两个业务流或会话之间共享先前保留的资源 。

公开(公告)号：US07143168B1

公开(公告)日：2006-11-28

申请号：US10039088

申请日：2002-01-03

申请人： Michael V. DiBiasio ,  Bruce S. Davie

发明人： Michael V. DiBiasio ,  Bruce S. Davie

IPC分类号： G06F15/173 ,  H04L12/56

CPC分类号： H04L47/724 ,  H04L47/125 ,  H04L47/2441 ,  H04L47/70 ,  H04L47/765 ,  H04L47/828

摘要： A technique is provided that correctly allocates resources among data flows while taking maximal advantage of resource sharing opportunities. In accordance with the inventive technique, data flows that share the same session group identifier (SGID) are allowed to share resources if no one data flow within the group is sharing its resources with another data flow that has a different SGID. In addition, resource sharing is allowed between data flows that share the same destination provided that none of the data flows are sharing resources with a data flow from another session.

摘要翻译： 提供了一种在数据流中正确分配资源同时最大限度地利用资源共享机会的技术。 根据本发明技术，如果该组内的一个数据流与另一个具有不同SGID的数据流共享其资源，那么允许共享相同会话组标识符（SGID）的数据流共享资源。 另外，如果没有一个数据流与另一个会话的数据流共享资源，则在共享相同目的地的数据流之间允许资源共享。

公开(公告)号：US07110363B1

公开(公告)日：2006-09-19

申请号：US10353125

申请日：2003-01-28

申请人： Jeremy Lawrence ,  Bruce S. Davie ,  David A. Hughes

发明人： Jeremy Lawrence ,  Bruce S. Davie ,  David A. Hughes

IPC分类号： H04J1/00 ,  H04L12/28 ,  H04L12/66

CPC分类号： H04L12/5601 ,  H04L49/104 ,  H04L2012/5624 ,  H04L2012/5626 ,  H04L2012/5672

摘要： A method for operating a router which combines virtual channels is disclosed, where both forward and reverse directed resource management cells are used to control transmission rate of a source computer. The merging router receives forward directed resource management cells from a plurality of upstream routers, where each forward directed resource management cell represents a virtual channel. The router: (1) replies to each upstream router with a reverse directed resource management cell; and (2) forwards to a downstream router a combined forward directed resource management cell, the combined forward directed resource management cell combining a plurality of virtual channels established between the router and the plurality of upstream routers.

摘要翻译： 公开了一种用于操作组合虚拟信道的路由器的方法，其中使用正向和反向定向的资源管理小区来控制源计算机的传输速率。 合并路由器从多个上游路由器接收前向资源管理小区，其中每个前向资源管理小区表示虚拟信道。 路由器：（1）用反向资源管理单元回复每个上游路由器; 并且（2）将组合的前向资源管理小区转发到下游路由器，组合的前向资源管理小区组合在路由器和多个上游路由器之间建立的多个虚拟信道。

公开(公告)号：US20120185370A1

公开(公告)日：2012-07-19

申请号：US13349777

申请日：2012-01-13

申请人： Bruce S. Davie ,  Francois Le Faucheur

发明人： Bruce S. Davie ,  Francois Le Faucheur

IPC分类号： H04L9/32 ,  G06Q30/04 ,  G06F15/16

CPC分类号： G06Q30/04 ,  H04L63/0869 ,  H04L63/126

摘要： In one embodiment, a first content delivery network (CDN) receives a request for content from a client device, such as a web browser. The first CDN responds to the client device with a uniform resource indicator (URI) that indicates that a second (or downstream) CDN is to service the request. The URI is encoded with information identifying that the first (or upstream) CDN delegated servicing the request to the second CDN. The client device then requests the content from the second CDN using the received URI. The second CDN services the request and logs the URI in a delivery record. The second CDN may then aggregate delivery records that indicate a particular upstream CDN was the source of delegation and forward those delivery records to the particular upstream CDN for reimbursement for servicing content requests.

摘要翻译： 在一个实施例中，第一内容递送网络（CDN）从诸如网络浏览器的客户端设备接收对内容的请求。 第一个CDN使用统一的资源指示符（URI）来响应客户端设备，该资源指示符指示第二个（或下游）CDN要服务该请求。 该URI使用标识向第二个CDN服务请求的第一个（或上游）CDN的信息进行编码。 客户端设备然后使用接收到的URI请求来自第二CDN的内容。 第二个CDN服务请求并将URI记录在传送记录中。 第二个CDN可以汇总交付记录，指示特定的上游CDN是委托的来源，并将这些交付记录转发到特定的上游CDN以偿还服务内容请求。

公开(公告)号：US07733876B2

公开(公告)日：2010-06-08

申请号：US11216963

申请日：2005-08-31

申请人： Bruce S. Davie ,  Luca Martini ,  Eric C Rosen

发明人： Bruce S. Davie ,  Luca Martini ,  Eric C Rosen

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L12/2854

摘要： A layer-2 virtual-private-network (L2-VPN) service with automatic discovery and connection establishment is provided within a wide-area, multiple-autonomous-system (AS) network according to one of two approaches. In the first approach, inter-AS tunnels are used to connect pairs of provider edge (PE) routers of different ASes, and the PE routers then establish signaling connections to each other which are used to create pseudowires that implement the layer-2 connectivity. A second approach utilizes so-called “pseudowire switching” in which separate pseudowires are created within each AS and between ASes, and then the separate pseudowires are stitched together to form end-to-end connections. The first approach has the benefit of transparent operation provided by the tunnel, while the second approach requires fewer inter-AS signaling connections.

摘要翻译： 根据两种方法之一，在广域，多自治系统（AS）网络内提供具有自动发现和连接建立的二层虚拟专用网（L2-VPN）业务。 在第一种方法中，跨域隧道用于连接不同AS的提供商边缘（PE）路由器对，并且PE路由器然后建立彼此的信令连接，用于创建实现第二层连接的伪线。 第二种方法利用所谓的“伪线切换”，其中在每个AS内和AS之间创建单独的伪线，然后将分离的伪线缝合在一起以形成端到端连接。 第一种方法具有由隧道提供的透明操作的优点，而第二种方法需要较少的AS间信令连接。

公开(公告)号：US07454504B2

公开(公告)日：2008-11-18

申请号：US11584854

申请日：2006-10-23

申请人： Michael V. DiBiasio ,  Bruce S. Davie

发明人： Michael V. DiBiasio ,  Bruce S. Davie

IPC分类号： G06F15/173 ,  H04L12/28

CPC分类号： H04L47/724 ,  H04L47/125 ,  H04L47/2441 ,  H04L47/70 ,  H04L47/765 ,  H04L47/828

摘要： In one embodiment, a technique is provided to share resources among data flows. An apparatus receives a request for a new data flow where the new data flow is associated with a session group (ID). The apparatus determines that the session group ID of the new data flow matches a session group ID of one or more existing data flows, and that the one or more existing data flows are not already sharing resources with another data flow that has a session group ID different from the first session group ID. Provided this is true, the apparatus shares resources reserved for the one or more existing data flows with the new data flow.

摘要翻译： 在一个实施例中，提供了一种在数据流之间共享资源的技术。 一种装置接收对新数据流的请求，其中新的数据流与会话组（ID）相关联。 该装置确定新数据流的会话组ID与一个或多个现有数据流的会话组ID匹配，并且一个或多个现有数据流尚未与具有会话组ID的另一个数据流共享资源 与第一个会话组ID不同。 如果这是真的，则该装置与新数据流共享为一个或多个现有数据流保留的资源。

公开(公告)号：US07225271B1

公开(公告)日：2007-05-29

申请号：US09896276

申请日：2001-06-29

申请人： Michael V. DiBiasio ,  Bruce S. Davie ,  David R. Oran

发明人： Michael V. DiBiasio ,  Bruce S. Davie ,  David R. Oran

IPC分类号： G06F15/173 ,  G06F15/16

CPC分类号： H04L47/10 ,  H04L47/215 ,  H04L47/2433 ,  H04L47/2441 ,  H04L47/2475 ,  H04L47/70 ,  H04L47/724 ,  H04L47/801

摘要： A system assigns network traffic flows to appropriate queues and/or queue servicing algorithms based upon one or more flow parameters contained in reservation requests associated with the traffic flows. The system may be disposed at an intermediate network device within a computer network. The intermediate network device includes a reservation engine, a packet classification engine, an admission control entity, a traffic scheduler, and a flow analyzer. The flow analyzer includes or has access to a memory that is preprogrammed with one or more heuristic sets for use in evaluating the flow parameters of reservation requests. When a reservation request that includes one or more flow parameters characterizing the bandwidth and/or forwarding requirements of the anticipated traffic flow is received, the flow analyzer applies the heuristic sets. Depending on which set of heuristics, if any, the parameters satisfy, the flow analyzer selects the appropriate queue and/or queue servicing algorithm for the flow.

摘要翻译： 系统基于与业务流相关联的预留请求中包含的一个或多个流参数来将网络流量流分配给适当的队列和/或队列服务算法。 系统可以被布置在计算机网络内的中间网络设备处。 中间网络设备包括预留引擎，分组分类引擎，准入控制实体，业务调度器和流量分析器。 流量分析器包括或可访问一个预编程有一个或多个启发式组件的存储器，用于评估预留请求的流程参数。 当接收到包括表征预期业务流的带宽和/或转发要求的一个或多个流参数的预留请求时，流分析器应用启发式集合。 根据哪一组启发式（如果有的话）参数满足，流量分析器为流程选择适当的队列和/或队列服务算法。