公开(公告)号：US09628400B2

公开(公告)日：2017-04-18

申请号：US13949393

申请日：2013-07-24

Applicant: Cisco Technology, Inc.

Inventor： Ashok Narayanan ,  David R. Oran

IPC: G06F15/173 ,  H04L12/911 ,  H04L29/06

CPC classification number: H04L47/70 ,  H04L63/0414 ,  H04L63/0428

Abstract: In one embodiment, an intermediate node in a communication network receives a client interest with an indication of a client-requested reverse private path. The reverse private path is a label switched path toward a corresponding client with encrypted client information. In response to receiving the client interest, the intermediate node allocates a label for the reverse private path. The allocated label is mapped to a node from which the client interest is received. The intermediate node then forwards the client interest with the allocated label toward a server. In another embodiment, the server receives a client interest including a client-requested reverse private path from a particular intermediate node and determines a server interest. The allocated label for the client interest is inserted into the server interest which is forwarded toward the client via the particular intermediate node using the allocated label for the reverse private path.

公开(公告)号：US20140050220A1

公开(公告)日：2014-02-20

申请号：US14058409

申请日：2013-10-21

Applicant: Cisco Technology, Inc.

Inventor： Francois Laurent Le Faucheur ,  Ashwini Dahiya ,  Ashok Narayanan

IPC: H04L12/723

CPC classification number: H04L45/50 ,  H04L12/4641 ,  H04L47/70 ,  H04L47/724

Abstract: The embodiments described herein present methods and apparatuses for on-path CAC operations in a MPLS-VPN environment. In an example embodiment, an ingress PE device receives a quality of service (QoS) resource reservation request; constructs an outgoing message that includes information allowing an egress PE device to identify the virtual private network routing and forwarding table (VRF) associated with a resource reservation resulting from the QoS resource reservation request; and transmits the outgoing message to the egress PE device, where the information allowing VRF identification is echoed back by the egress PE device and used by the ingress PE device to identify the VRF associated with the resource reservation resulting from the QoS resource reservation request. Other embodiments are described.

Abstract translation: 本文描述的实施例提出了在MPLS-VPN环境中的路径CAC操作的方法和装置。 在一个示例实施例中，入口PE设备接收服务质量（QoS）资源预留请求; 构建一个输出消息，该消息包括允许出口PE设备识别与由QoS资源预留请求产生的资源预留相关联的虚拟专用网路由和转发表（VRF）的信息; 并将外发消息发送到出口PE设备，其中允许VRF标识的信息由出口PE设备回发并由入口PE设备用来识别与QoS资源预留请求产生的资源预留相关的VRF。 描述其他实施例。

公开(公告)号：US09413648B2

公开(公告)日：2016-08-09

申请号：US14058409

申请日：2013-10-21

Applicant: Cisco Technology, Inc.

Inventor： Francois Laurent Le Faucheur ,  Ashwini Dahiya ,  Ashok Narayanan

IPC: H04L12/723 ,  H04L12/46 ,  H04L12/54 ,  H04L12/913

CPC classification number: H04L45/50 ,  H04L12/4641 ,  H04L47/70 ,  H04L47/724

Abstract: The embodiments described herein present methods and apparatuses for on-path CAC operations in a MPLS-VPN environment. In an example embodiment, an ingress PE device receives a quality of service (QoS) resource reservation request; constructs an outgoing message that includes information allowing an egress PE device to identify the virtual private network routing and forwarding table (VRF) associated with a resource reservation resulting from the QoS resource reservation request; and transmits the outgoing message to the egress PE device, where the information allowing VRF identification is echoed back by the egress PE device and used by the ingress PE device to identify the VRF associated with the resource reservation resulting from the QoS resource reservation request. Other embodiments are described.

公开(公告)号：US09270598B1

公开(公告)日：2016-02-23

申请号：US14105789

申请日：2013-12-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： David R. Oran ,  Ashok Narayanan

IPC: H04L12/801 ,  H04L29/08

CPC classification number: H04L47/115 ,  H04L45/22 ,  H04L45/28 ,  H04L47/11 ,  H04L47/122 ,  H04L47/24 ,  H04L47/629 ,  H04L67/327

Abstract: An example method for congestion control using congestion prefix information in a Named Data Networking (NDN) environment is provided and includes sensing, at a first node, congestion preventing an interest packet from being forwarded over a link to a second node, generating a prefix marker associated with a class of traffic to which the interest packet belongs, generating a negative acknowledgement (NACK) packet that includes the prefix marker, the NACK packet being indicative of congestion for any interest packet in the class of traffic indicated by the prefix marker over any path that includes the link, and transmitting the NACK packet over the NDN environment towards a sender of the interest packet.

Abstract translation: 提供了在命名数据网络（NDN）环境中使用拥塞前缀信息进行拥塞控制的示例性方法，并且包括在第一节点处感测阻止利益分组通过链路转发到第二节点的拥塞，生成前缀标记 与感兴趣分组所属的一类业务相关联，生成包括前缀标记的否定确认（NACK）分组，该NACK分组指示由前缀标记指示的业务类别中的任何兴趣分组的拥塞，任何 路径，其包括链路，并且通过NDN环境向该感兴趣分组的发送者发送NACK分组。

公开(公告)号：US20150271072A1

公开(公告)日：2015-09-24

申请号：US14223272

申请日：2014-03-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Charles Moreman ,  Bill Carroll VerSteeg ,  David R. Oran ,  Ashok Narayanan

IPC: H04L12/801 ,  H04L12/825 ,  H04L12/835 ,  H04L29/08 ,  H04L12/26

CPC classification number: H04L47/12 ,  H04L43/0876 ,  H04L47/25 ,  H04L47/30 ,  H04L65/4084 ,  H04L65/80 ,  H04L67/2842

Abstract: In one embodiment, a method includes measuring at a cache node located on a data path between a content source and an adaptive streaming client, a time to retrieve content from the content source, and rate limiting streaming of the content from the cache node to the adaptive streaming client based on the measured time to retrieve the content. An apparatus and logic are also disclosed herein.

Abstract translation: 在一个实施例中，一种方法包括在位于内容源和自适应流客户端之间的数据路径上的高速缓存节点上测量从内容源检索内容的时间，以及速率限制内容从高速缓存节点到 自适应流客户端基于测量时间来检索内容。 本文还公开了一种装置和逻辑。

公开(公告)号：US20150032892A1

公开(公告)日：2015-01-29

申请号：US13949393

申请日：2013-07-24

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ashok Narayanan ,  David R. Oran

IPC: H04L12/911

CPC classification number: H04L47/70 ,  H04L63/0414 ,  H04L63/0428

Abstract: In one embodiment, an intermediate node in a communication network receives a client interest with an indication of a client-requested reverse private path. The reverse private path is a label switched path toward a corresponding client with encrypted client information. In response to receiving the client interest, the intermediate node allocates a label for the reverse private path. The allocated label is mapped to a node from which the client interest is received. The intermediate node then forwards the client interest with the allocated label toward a server. In another embodiment, the server receives a client interest including a client-requested reverse private path from a particular intermediate node and determines a server interest. The allocated label for the client interest is inserted into the server interest which is forwarded toward the client via the particular intermediate node using the allocated label for the reverse private path.

Abstract translation: 在一个实施例中，通信网络中的中间节点通过客户端请求的反向私有路径的指示来接收客户端兴趣。 反向私有路径是朝向具有加密客户端信息的相应客户端的标签交换路径。 响应于接收到客户端的兴趣，中间节点分配用于反向专用路径的标签。 分配的标签映射到接收客户端兴趣的节点。 中间节点然后将客户端的兴趣转发给服务器。 在另一个实施例中，服务器从特定中间节点接收包括客户端请求的反向专用路径的客户端兴趣并确定服务器兴趣。 用于客户兴趣的分配的标签被插入到通过特定中间节点使用分配的用于反向专用路径的标签向客户机转发的服务器兴趣。