公开(公告)号：US20140304427A1

公开(公告)日：2014-10-09

申请号：US14311537

申请日：2014-06-23

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui ,  Stefano Previdi ,  Shmuel Shaffer

IPC: H04L12/707

CPC classification number: H04L45/22 ,  H04L45/64

Abstract: In one embodiment, a particular field area router (FAR), in a local computer network (e.g., a mesh network) having a plurality of FARs, advertises a common subnet prefix assigned to the local computer network into a global computer network. Each of the plurality of FARs of the local computer network is configured to accept any traffic destined to the local computer network, and a tunnel overlay is built among the plurality of FARs. Upon receiving a packet at the particular FAR destined to a particular device in the local computer network, and in response to the particular FAR not having a host route to the particular device, it forwards the packet on the tunnel overlay to another of the plurality of FARs of the local computer network.

Abstract translation: 在一个实施例中，具有多个FAR的本地计算机网络（例如，网状网络）中的特定场区域路由器（FAR）将分配给本地计算机网络的公共子网前缀通告给全局计算机网络。 本地计算机网络的多个FAR中的每一个被配置为接受去往本地计算机网络的任何流量，并且在多个FAR之间建立隧道覆盖。 一旦在特定的FAR上收到一个目的地是本地计算机网络中的特定设备的分组，并且响应于特定的FAR没有到该特定设备的主机路由，它将隧道覆盖上的分组转发到多个 本地计算机网络的FAR。

公开(公告)号：US09178796B2

公开(公告)日：2015-11-03

申请号：US13930081

申请日：2013-06-28

Applicant: Cisco Technology, Inc.

Inventor： Stefano Previdi ,  Jean-Philippe Vasseur ,  Jan Medved ,  David Ward ,  Clarence Filsfils ,  Christopher Metz

IPC: H04L12/751 ,  H04L12/723 ,  H04L12/715

CPC classification number: H04L45/02 ,  H04L41/12 ,  H04L45/04 ,  H04L45/50 ,  H04L45/64

Abstract: In one embodiment, a stateful computing entity in a computer network determines underlying network information (physical and/or optical) for the computer network, and also determines topologies (Internet Protocol (IP) and/or Multiprotocol Label Switching (MPLS)) for the computer network and associated resource information. Further, the stateful computing entity determines label switched path (LSP) state information for the computer network. The stateful computing entity may then build network state knowledge by aggregating the underlying network information, the topologies and associated resource information, and the LSP state information, and establishes communication within a dynamic network of other stateful computing entities sharing network state knowledge for parallel computation performance. Accordingly, the stateful computing entity may perform network computation based on the network state knowledge.

Abstract translation: 在一个实施例中，计算机网络中的状态计算实体确定用于计算机网络的底层网络信息（物理和/或光学），并且还确定用于所述计算机网络的拓扑（互联网协议（IP））和/或多协议标签交换（MPLS）） 计算机网络和相关资源信息。 此外，有状态计算实体确定计算机网络的标签交换路径（LSP）状态信息。 有状态计算实体可以通过聚合底层网络信息，拓扑和相关资源信息以及LSP状态信息来构建网络状态知识，并且在共享网络状态知识的其他有状态计算实体的动态网络内建立用于并行计算性能的通信 。 因此，有状态计算实体可以基于网络状态知识来执行网络计算。

公开(公告)号：US20150006615A1

公开(公告)日：2015-01-01

申请号：US13929369

申请日：2013-06-27

Applicant: Cisco Technology, Inc.

Inventor： Warren Scott Wainner ,  Aeneas Dodd-Noble ,  Mahesh Vittal ,  Stefano Previdi

IPC: H04L29/06

CPC classification number: H04L29/06047 ,  H04L65/4084 ,  H04L67/02 ,  H04L67/1021 ,  H04L67/18 ,  H04L67/2814 ,  H04L67/2842 ,  H04L67/289 ,  H04L69/22

Abstract: In one embodiment, a client device queries a location server using a client-selected interface for content retrieval from a content distribution network (CDN), and receives a location attribute from the location server based on a location of the client device. The client device then presents the location attribute to a CDN selector within a first content retrieval request, and may receive a redirection from the CDN selector to a selected content source based on the location attribute. As such, the client device may then initiate a second content retrieval request to the selected content source. In another embodiment, a CDN selector receives a content retrieval request from a client device, and determines that the content retrieval request contains a location attribute indicating a location of the client device. Based on the location attribute, the CDN selector selects a content source, and redirects the client device to the selected content source.

Abstract translation: 在一个实施例中，客户端设备使用客户端选择的接口从内容分发网络（CDN）查询内容检索的位置服务器，并且基于客户端设备的位置从位置服务器接收位置属性。 然后，客户端设备将位置属性呈现给第一内容检索请求内的CDN选择器，并且可以基于位置属性从CDN选择器接收到所选内容源的重定向。 这样，客户端设备然后可以向所选择的内容源发起第二内容检索请求。 在另一个实施例中，CDN选择器从客户端设备接收内容检索请求，并确定内容检索请求包含指示客户端设备的位置的位置属性。 基于location属性，CDN选择器选择内容源，并将客户端设备重定向到所选择的内容源。

公开(公告)号：US20150003283A1

公开(公告)日：2015-01-01

申请号：US13930081

申请日：2013-06-28

Applicant: Cisco Technology, Inc.

Inventor： Stefano Previdi ,  Jean-Philippe Vasseur ,  Jan Medved ,  David Ward ,  Clarence Filsfils ,  Christopher Metz

IPC: H04L12/751 ,  H04L12/723

CPC classification number: H04L45/02 ,  H04L41/12 ,  H04L45/04 ,  H04L45/50 ,  H04L45/64

Abstract: In one embodiment, a stateful computing entity in a computer network determines underlying network information (physical and/or optical) for the computer network, and also determines topologies (Internet Protocol (IP) and/or Multiprotocol Label Switching (MPLS)) for the computer network and associated resource information. Further, the stateful computing entity determines label switched path (LSP) state information for the computer network. The stateful computing entity may then build network state knowledge by aggregating the underlying network information, the topologies and associated resource information, and the LSP state information, and establishes communication within a dynamic network of other stateful computing entities sharing network state knowledge for parallel computation performance. Accordingly, the stateful computing entity may perform network computation based on the network state knowledge.

Abstract translation: 在一个实施例中，计算机网络中的状态计算实体确定用于计算机网络的底层网络信息（物理和/或光学），并且还确定用于所述计算机网络的拓扑（互联网协议（IP））和/或多协议标签交换（MPLS）） 计算机网络和相关资源信息。 此外，有状态计算实体确定计算机网络的标签交换路径（LSP）状态信息。 有状态计算实体可以通过聚合底层网络信息，拓扑和相关资源信息以及LSP状态信息来构建网络状态知识，并且在共享网络状态知识的其他有状态计算实体的动态网络内建立用于并行计算性能的通信 。 因此，有状态计算实体可以基于网络状态知识来执行网络计算。

公开(公告)号：US09419845B2

公开(公告)日：2016-08-16

申请号：US13929369

申请日：2013-06-27

Applicant: Cisco Technology, Inc.

Inventor： Warren Scott Wainner ,  Aeneas Dodd-Noble ,  Mahesh Vittal Viveganandhan ,  Stefano Previdi

IPC: G06F15/173 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L29/06047 ,  H04L65/4084 ,  H04L67/02 ,  H04L67/1021 ,  H04L67/18 ,  H04L67/2814 ,  H04L67/2842 ,  H04L67/289 ,  H04L69/22

Abstract: In one embodiment, a client device queries a location server using a client-selected interface for content retrieval from a content distribution network (CDN), and receives a location attribute from the location server based on a location of the client device. The client device then presents the location attribute to a CDN selector within a first content retrieval request, and may receive a redirection from the CDN selector to a selected content source based on the location attribute. As such, the client device may then initiate a second content retrieval request to the selected content source. In another embodiment, a CDN selector receives a content retrieval request from a client device, and determines that the content retrieval request contains a location attribute indicating a location of the client device. Based on the location attribute, the CDN selector selects a content source, and redirects the client device to the selected content source.

Abstract translation: 在一个实施例中，客户端设备使用客户端选择的接口从内容分发网络（CDN）查询内容检索的位置服务器，并且基于客户端设备的位置从位置服务器接收位置属性。 然后，客户端设备将位置属性呈现给第一内容检索请求中的CDN选择器，并且可以基于位置属性从CDN选择器接收到所选内容源的重定向。 这样，客户端设备然后可以向所选择的内容源发起第二内容检索请求。 在另一个实施例中，CDN选择器从客户端设备接收内容检索请求，并确定内容检索请求包含指示客户端设备的位置的位置属性。 基于location属性，CDN选择器选择内容源，并将客户端设备重定向到所选择的内容源。

公开(公告)号：US09130863B2

公开(公告)日：2015-09-08

申请号：US14311537

申请日：2014-06-23

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui ,  Stefano Previdi ,  Shmuel Shaffer

IPC: G06F15/173 ,  H04L12/707 ,  H04L12/715

CPC classification number: H04L45/22 ,  H04L45/64

Abstract: In one embodiment, a particular field area router (FAR), in a local computer network (e.g., a mesh network) having a plurality of FARs, advertises a common subnet prefix assigned to the local computer network into a global computer network. Each of the plurality of FARs of the local computer network is configured to accept any traffic destined to the local computer network, and a tunnel overlay is built among the plurality of FARs. Upon receiving a packet at the particular FAR destined to a particular device in the local computer network, and in response to the particular FAR not having a host route to the particular device, it forwards the packet on the tunnel overlay to another of the plurality of FARs of the local computer network.

Abstract translation: 在一个实施例中，具有多个FAR的本地计算机网络（例如，网状网络）中的特定场区域路由器（FAR）将分配给本地计算机网络的公共子网前缀通告给全局计算机网络。 本地计算机网络的多个FAR中的每一个被配置为接受去往本地计算机网络的任何流量，并且在多个FAR之间建立隧道覆盖。 一旦在特定的FAR上收到一个目的地是本地计算机网络中的特定设备的分组，并且响应于特定的FAR没有到该特定设备的主机路由，它将隧道覆盖上的分组转发到多个 本地计算机网络的FAR。

公开(公告)号：US09225640B2

公开(公告)日：2015-12-29

申请号：US14019728

申请日：2013-09-06

Applicant: Cisco Technology, Inc.

Inventor： Ali Sajassi ,  Keyur Patel ,  Chandrashekhar Appanna ,  Stefano Previdi

IPC: H04L12/28 ,  H04L12/741 ,  H04L12/751 ,  H04L12/715 ,  H04L12/723

CPC classification number: H04L45/745 ,  H04L45/02 ,  H04L45/04 ,  H04L45/50

Abstract: In one embodiment, a method includes receiving, by a first autonomous system border router (ASBR) of a first autonomous system (AS), a first plurality of provider-provisioned media access control (B-MAC) addresses via Interior Border Gateway Protocol (I-BGP). Each of first plurality of B-MAC addresses is associated with a provider edge (PE) device of the first AS. The first ASBR sends the first plurality of B-MAC addresses to a second ASBR of a second AS using Exterior Border Gateway Protocol (E-BGP). The first ASBR also receives via E-BGP a second plurality of B-MAC addresses each of which is associated with a PE device of the second AS. The first ASBR then distributes the second plurality of B-MAC addresses to each of the PE devices of the first AS using I-BGP.