公开(公告)号：US09634929B2

公开(公告)日：2017-04-25

申请号：US14563979

申请日：2014-12-08

Applicant: Cisco Technology, Inc.

Inventor： Sami Boutros ,  Yuri Tsier ,  Muthurajah Sivabalan ,  Pradosh Mohapatra ,  Clarence Filsfils ,  John H. W. Bettink ,  Luca Martini

IPC: H04L12/723 ,  H04L12/715 ,  H04L12/18

CPC classification number: H04L45/502 ,  H04L12/18 ,  H04L45/04

Abstract: In one embodiment, an access component of a local network edge device receives traffic, and generates a frame for the traffic that includes a remote context label that identifies an access component of the remote network edge device to which the traffic is to be forwarded upon arrival at the remote network edge device, and a virtual circuit label corresponding to a particular virtual service of the traffic. The local network edge device forwards the frame towards the remote network edge device. In another embodiment, the frame may be received at a core component of the remote network edge device, an in response to the remote context label identifying an access component of the remote network edge device, forwarded to the access component, which determines the particular virtual service, and forwards the traffic from the frame out the access component towards an endpoint for the traffic.

公开(公告)号：US20140192630A1

公开(公告)日：2014-07-10

申请号：US14148494

申请日：2014-01-06

Applicant: Cisco Technology, Inc.

Inventor： Nikunj R. Vaidya ,  Pradosh Mohapatra ,  Arun Satyanarayana ,  Pankaj Bhagra ,  Clarence Filsfils

IPC: H04L12/24

CPC classification number: H04L41/0672 ,  H04L41/04 ,  H04L41/0659 ,  H04L41/0677 ,  H04L43/0811 ,  H04L43/0817 ,  H04L45/02 ,  H04L45/28

Abstract: In one embodiment, a network device may detect a data plane critical fault condition, while a corresponding control plane is not experiencing a critical fault condition. In response to a network device based critical fault condition, the network device may activate and advertise an increased and expensive usable metric for each network interface of the network device. On the other hand, in response to an interface based critical fault condition, the network device may activate and advertise an increased and expensive usable metric for one or more particular network interfaces of the interface based critical fault, and signals, over the control plane to a corresponding network device at an opposing end of each particular network interface of the interface based critical fault, a request to activate and advertise an increased and expensive usable metric at the opposing end of each particular network interface.

Abstract translation: 在一个实施例中，网络设备可以检测数据平面关键故障状况，而相应的控制平面没有经历严重故障状况。 响应于基于网络设备的关键故障状况，网络设备可以激活和通告网络设备的每个网络接口的增加且昂贵的可用度量。 另一方面，响应于基于接口的关键故障条件，网络设备可以激活并通告在基于接口的关键故障的一个或多个特定网络接口和控制平面上的信号的增加且昂贵的可用度量 在基于接口的关键故障的每个特定网络接口的相对端处的相应网络设备，激活并在每个特定网络接口的相对端处通告增加且昂贵的可用度量的请求。

公开(公告)号：US20150092775A1

公开(公告)日：2015-04-02

申请号：US14563979

申请日：2014-12-08

Applicant: Cisco Technology, Inc.

Inventor： Sami Boutros ,  Yuri Tsier ,  Muthurajah Sivabalan ,  Pradosh Mohapatra ,  Clarence Filsfils ,  John H.W. Bettink ,  Luca Martini

IPC: H04L12/723 ,  H04L12/18

CPC classification number: H04L45/502 ,  H04L12/18 ,  H04L45/04

Abstract: In one embodiment, an access component of a local network edge device receives traffic, and generates a frame for the traffic that includes a remote context label that identifies an access component of the remote network edge device to which the traffic is to be forwarded upon arrival at the remote network edge device, and a virtual circuit label corresponding to a particular virtual service of the traffic. The local network edge device forwards the frame towards the remote network edge device. In another embodiment, the frame may be received at a core component of the remote network edge device, an in response to the remote context label identifying an access component of the remote network edge device, forwarded to the access component, which determines the particular virtual service, and forwards the traffic from the frame out the access component towards an endpoint for the traffic.

Abstract translation: 在一个实施例中，本地网络边缘设备的接入组件接收业务，并且生成包括远程上下文标签的业务的帧，所述远程上下文标签识别到达所述业务将被转发到的远程网络边缘设备的接入组件 在远程网络边缘设备处，以及对应于业务的特定虚拟服务的虚拟电路标签。 本地网络边缘设备将帧转发到远程网络边缘设备。 在另一个实施例中，可以在远程网络边缘设备的核心组件处接收帧，响应于远程上下文标签识别远程网络边缘设备的接入组件，转发到接入组件，其确定特定虚拟 服务，并将来自帧的流量从访问组件转发到流量的端点。

公开(公告)号：US09253027B2

公开(公告)日：2016-02-02

申请号：US14148494

申请日：2014-01-06

Applicant: Cisco Technology, Inc.

Inventor： Nikunj R. Vaidya ,  Pradosh Mohapatra ,  Arun Satyanarayana ,  Pankaj Bhagra ,  Clarence Filsfils

IPC: G06F11/00 ,  H04L12/24 ,  H04L12/751 ,  H04L12/703 ,  H04L12/26

CPC classification number: H04L41/0672 ,  H04L41/04 ,  H04L41/0659 ,  H04L41/0677 ,  H04L43/0811 ,  H04L43/0817 ,  H04L45/02 ,  H04L45/28

Abstract: In one embodiment, a network device may detect a data plane critical fault condition, while a corresponding control plane is not experiencing a critical fault condition. In response to a network device based critical fault condition, the network device may activate and advertise an increased and expensive usable metric for each network interface of the network device. On the other hand, in response to an interface based critical fault condition, the network device may activate and advertise an increased and expensive usable metric for one or more particular network interfaces of the interface based critical fault, and signals, over the control plane to a corresponding network device at an opposing end of each particular network interface of the interface based critical fault, a request to activate and advertise an increased and expensive usable metric at the opposing end of each particular network interface.

Abstract translation: 在一个实施例中，网络设备可以检测数据平面关键故障状况，而相应的控制平面没有经历严重故障状况。 响应于基于网络设备的关键故障状况，网络设备可以激活和通告网络设备的每个网络接口的增加且昂贵的可用度量。 另一方面，响应于基于接口的关键故障条件，网络设备可以激活并通告在基于接口的关键故障的一个或多个特定网络接口和控制平面上的信号的增加且昂贵的可用度量 在基于接口的关键故障的每个特定网络接口的相对端处的相应网络设备，激活并在每个特定网络接口的相对端处通告增加且昂贵的可用度量的请求。