公开(公告)号：US20200244588A1

公开(公告)日：2020-07-30

申请号：US16825168

申请日：2020-03-20

Applicant: Cisco Technology, Inc.

Inventor： Clarence Filsfils ,  Zafar Ali ,  Pablo Camarillo Garvia ,  Francois Clad

IPC: H04L12/863 ,  H04L12/911 ,  H04L12/851 ,  H04L12/801 ,  H04L12/26

Abstract: The present technology is directed to a system and method for implementing network resource partitioning and Quality of Service (QoS) separation through network slicing. Embodiments of the present invention describe scalable network slicing method based on defining Segment Routing Flexible Algorithm to represent a network slice and assigning a distinct QoS policy queue to each of the Flexible Algorithms configured on a network node. Therefore, scalable network slice based queuing is implemented wherein a single packet processing queue is assigned to each Flex-Algorithm based network slice. QoS policy queue may be implemented in a hierarchical fashion by differentiation between flow packets in a single QoS policy queue based on value of experimental bits in the header.

公开(公告)号：US09590850B2

公开(公告)日：2017-03-07

申请号：US13962226

申请日：2013-08-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Clarence Filsfils ,  George Swallow ,  Jean Philippe Vasseur ,  Zafar Ali

IPC: H04L12/24 ,  H04L12/751 ,  H04L12/717

CPC classification number: H04L41/0813 ,  H04L41/0896 ,  H04L45/02 ,  H04L45/42

Abstract: In one embodiment, a method includes receiving at a node in a first network, information identifying a spare interface between a first network device in the first network and a second network device in a second network, and using the spare interface to create a path in the first network if the spare interface is compatible. The spare interface information includes connectivity and compatibility information.

Abstract translation: 在一个实施例中，一种方法包括在第一网络中的节点处接收标识第一网络中的第一网络设备与第二网络中的第二网络设备之间的备用接口的信息，以及使用备用接口创建路径 第一个网络如果备用接口兼容。 备用接口信息包括连接和兼容性信息。

公开(公告)号：US20160373317A1

公开(公告)日：2016-12-22

申请号：US15234212

申请日：2016-08-11

Applicant: Cisco Technology, Inc.

Inventor： Zafar Ali ,  Muthurajah Sivabalan ,  Clarence Filsfils ,  Jan Medved

IPC: H04L12/24 ,  H04L12/911 ,  H04L12/26

CPC classification number: H04L41/5051 ,  H04L41/0896 ,  H04L43/0876 ,  H04L47/825

Abstract: Bandwidth usage for an existing communication tunnel between a first device and second device is monitored. A determination is made that additional bandwidth is required for communication between the first network device and the second network device. A determination is made that for the addition of the additional bandwidth would exceed available bandwidth for the existing tunnel. Additional bandwidth is established between the first network device and the second network device.

Abstract translation: 监视第一设备和第二设备之间现有通信隧道的带宽使用情况。 确定第一网络设备和第二网络设备之间的通信需要额外的带宽。 确定附加带宽的增加将超过现有隧道的可用带宽。 在第一网络设备和第二网络设备之间建立额外的带宽。

公开(公告)号：US09473387B2

公开(公告)日：2016-10-18

申请号：US14957005

申请日：2015-12-02

Applicant: Cisco Technology, Inc.

Inventor： Tarek Saad ,  Sherif Awad ,  Zafar Ali ,  Michel Taillon

IPC: H04L12/721 ,  H04L12/723 ,  H04L12/729 ,  H04L12/707

CPC classification number: H04L45/124 ,  H04L45/125 ,  H04L45/24 ,  H04L45/50 ,  H04L45/62

Abstract: In one embodiment, a node in a communication network receives a label switched path (LSP) request and in response, the node determines at least two equal cost paths, each path having one or more path-nodes. The node may then further determine a total bandwidth-based transition value for each path of the at least two equal cost paths and selects the path having a lower total transition value. Once selected, the node may establish the requested LSP over the selected path.

公开(公告)号：US20160087883A1

公开(公告)日：2016-03-24

申请号：US14957005

申请日：2015-12-02

Applicant: Cisco Technology, Inc.

Inventor： Tarek Saad ,  Sherif Awad ,  Zafar Ali ,  Michel Taillon

IPC: H04L12/723

CPC classification number: H04L45/124 ,  H04L45/125 ,  H04L45/24 ,  H04L45/50 ,  H04L45/62

Abstract: In one embodiment, a node in a communication network receives a label switched path (LSP) request and in response, the node determines at least two equal cost paths, each path having one or more path-nodes. The node may then further determine a total bandwidth-based transition value for each path of the at least two equal cost paths and selects the path having a lower total transition value. Once selected, the node may establish the requested LSP over the selected path.

Abstract translation: 在一个实施例中，通信网络中的节点接收标签交换路径（LSP）请求，并且作为响应，节点确定至少两个相等的成本路径，每个路径具有一个或多个路径节点。 然后，节点可以进一步确定至少两个相等成本路径的每个路径的总带宽转换值，并选择具有较低总转换值的路径。 一旦选择，节点可以在所选路径上建立所请求的LSP。

公开(公告)号：US09237089B2

公开(公告)日：2016-01-12

申请号：US13754247

申请日：2013-01-30

Applicant: Cisco Technology, Inc.

Inventor： Tarek Saad ,  Sherif Saeed Awad ,  Zafar Ali ,  Michel Taillon

IPC: H04L12/721 ,  H04L12/729 ,  H04L12/707 ,  H04L12/723

CPC classification number: H04L45/124 ,  H04L45/125 ,  H04L45/24 ,  H04L45/50 ,  H04L45/62

Abstract: In one embodiment, a node in a communication network receives a label switched path (LSP) request and in response, the node determines at least two equal cost paths, each path having one or more path-nodes. The node may then further determine a total bandwidth-based transition value for each path of the at least two equal cost paths and selects the path having a lower total transition value. Once selected, the node may establish the requested LSP over the selected path.

Abstract translation: 在一个实施例中，通信网络中的节点接收标签交换路径（LSP）请求，并且作为响应，节点确定至少两个相等的成本路径，每个路径具有一个或多个路径节点。 然后，节点可以进一步确定至少两个相等成本路径的每个路径的总带宽转换值，并选择具有较低总转换值的路径。 一旦选择，节点可以通过所选择的路径建立所请求的LSP。

公开(公告)号：US20150043570A1

公开(公告)日：2015-02-12

申请号：US13962226

申请日：2013-08-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Clarence Filsfils ,  George Swallow ,  Jean Philippe Vasseur ,  Zafar Ali

IPC: H04L12/24

CPC classification number: H04L41/0813 ,  H04L41/0896 ,  H04L45/02 ,  H04L45/42

Abstract: In one embodiment, a method includes receiving at a node in a first network, information identifying a spare interface between a first network device in the first network and a second network device in a second network, and using the spare interface to create a path in the first network if the spare interface is compatible. The spare interface information includes connectivity and compatibility information.

Abstract translation: 在一个实施例中，一种方法包括在第一网络中的节点处接收标识第一网络中的第一网络设备与第二网络中的第二网络设备之间的备用接口的信息，以及使用备用接口创建路径 第一个网络如果备用接口兼容。 备用接口信息包括连接和兼容性信息。