公开(公告)号：US20180109450A1

公开(公告)日：2018-04-19

申请号：US15419819

申请日：2017-01-30

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Clarence Filsfils ,  Arjun Sreekantiah ,  Stefano B. Previdi ,  Muthurajah Sivabalan

IPC: H04L12/741 ,  H04L12/723

CPC classification number: H04L45/74 ,  H04L45/04 ,  H04L47/125

Abstract: Embodiments of the present disclosure provide a set of extensions to enable BGP to setup and maintain flexible Segment Routed Traffic Engineered (SR-TE) policies. Embodiments of the present disclosure further propose a new approach for steering traffic onto SR-TE paths on a per-prefix basis without deploying the existing complex mechanisms.

公开(公告)号：US10554549B1

公开(公告)日：2020-02-04

申请号：US15421268

申请日：2017-01-31

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Suresh Doddagaddavalli Basavarajappa ,  Kalpesh Kirtikant Zinjuwadia ,  Arjun Sreekantiah ,  Neeraj Malhotra ,  Patrice Brissette

IPC: G06F15/173 ,  H04L12/741 ,  H04L12/46 ,  H04L29/08 ,  H04L12/751

Abstract: Aspects of the embodiments are directed to methods, systems, and computer program products for stitching route targets between disparate virtual private network domains. Embodiments are directed to a datacenter interconnect (DCI) network element that is configured to receive from a first network node of a first domain a routing prefix comprising a first route target value; determine that the first route target value is associated with a first route target set, the first route target set associated with the first domain; determine a corresponding second route target set associated with a second domain; create a second routing prefix that includes one or more route target values from the second route target set; and transmit the second routing prefix to a network node in the second domain.

公开(公告)号：US20170104676A1

公开(公告)日：2017-04-13

申请号：US14878014

申请日：2015-10-08

Applicant: Cisco Technology, Inc.

Inventor： Keyur Patel ,  Serpil Bayraktar ,  Manish Bhardwaj ,  David D. Ward ,  Arjun Sreekantiah ,  Burjiz Pithawala

IPC: H04L12/721 ,  H04L12/26

CPC classification number: H04L45/70 ,  H04L41/0893 ,  H04L43/50 ,  H04L45/02 ,  H04L45/04 ,  H04L45/123 ,  H04L45/22

Abstract: A network includes a route reflector peered with client routers. From a perspective of the route reflector, a best path to the destination address is selected by applying to candidate paths ordered comparison tests that progress from policy tests through one or more additional tests until the best path is selected. A determination is made as to whether the best path was selected based on the policy tests exclusively. If the best path was selected based on the policy tests exclusively, the best path is assigned to each of the client routers. If the best path was not selected based on the policy tests exclusively, from a perspective of each client router, a respective best path is selected by applying to the candidate paths the one or more additional tests, and the respective best paths are assigned to the respective client routers.

公开(公告)号：US10454821B2

公开(公告)日：2019-10-22

申请号：US15419819

申请日：2017-01-30

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Clarence Filsfils ,  Arjun Sreekantiah ,  Stefano B. Previdi ,  Muthurajah Sivabalan

IPC: H04L12/58 ,  H04L12/741 ,  H04L12/715 ,  H04L12/803

Abstract: Embodiments of the present disclosure provide a set of extensions to enable BGP to setup and maintain flexible Segment Routed Traffic Engineered (SR-TE) policies. Embodiments of the present disclosure further propose a new approach for steering traffic onto SR-TE paths on a per-prefix basis without deploying the existing complex mechanisms.

公开(公告)号：US09847939B2

公开(公告)日：2017-12-19

申请号：US14878014

申请日：2015-10-08

Applicant: Cisco Technology, Inc.

Inventor： Keyur Patel ,  Serpil Bayraktar ,  Manish Bhardwaj ,  David D. Ward ,  Arjun Sreekantiah ,  Burjiz Pithawala

IPC: H04L12/26 ,  H04L12/721 ,  H04L12/24

CPC classification number: H04L45/70 ,  H04L41/0893 ,  H04L43/50 ,  H04L45/02 ,  H04L45/04 ,  H04L45/123 ,  H04L45/22

Abstract: A network includes a route reflector peered with client routers. From a perspective of the route reflector, a best path to the destination address is selected by applying to candidate paths ordered comparison tests that progress from policy tests through one or more additional tests until the best path is selected. A determination is made as to whether the best path was selected based on the policy tests exclusively. If the best path was selected based on the policy tests exclusively, the best path is assigned to each of the client routers. If the best path was not selected based on the policy tests exclusively, from a perspective of each client router, a respective best path is selected by applying to the candidate paths the one or more additional tests, and the respective best paths are assigned to the respective client routers.