公开(公告)号：US10721133B2

公开(公告)日：2020-07-21

申请号：US16058541

申请日：2018-08-08

Applicant: Cisco Technology, Inc.

Inventor： Praveen Nagarajan ,  Shashank Vinchurkar ,  Rajesh Arora ,  Anand Pulicat Gopalakrishnan ,  Leena Shrirang Chunekar ,  Nayan Seth ,  Sanjay Hooda ,  Amey Magar

IPC: H04L12/24

Abstract: In one embodiment, a supervisory device designates a particular networking device among a set of networking devices as a seed device and one or more interfaces of the seed device as discovery interfaces. The supervisory device coordinates, starting from the one or more discovery interfaces of the seed device, discovery of a Layer 2 topology of the set of networking devices, by designating one or more interfaces of a discovered networking device as discovery interfaces. The supervisory device converts, starting from at least one of the network devices farthest from the seed device in the Layer 2 topology and ending with the seed device, links of the Layer 2 topology into Layer 3 links, to form an underlay network.

公开(公告)号：US20200052971A1

公开(公告)日：2020-02-13

申请号：US16058541

申请日：2018-08-08

Applicant: Cisco Technology, Inc.

Inventor： Praveen Nagarajan ,  Shashank Vinchurkar ,  Rajesh Arora ,  Anand Pulicat Gopalakrishnan ,  Leena Shrirang Chunekar ,  Nayan Seth ,  Sanjay Hooda ,  Amey Magar

IPC: H04L12/24

Abstract: In one embodiment, a supervisory device designates a particular networking device among a set of networking devices as a seed device and one or more interfaces of the seed device as discovery interfaces. The supervisory device coordinates, starting from the one or more discovery interfaces of the seed device, discovery of a Layer 2 topology of the set of networking devices, by designating one or more interfaces of a discovered networking device as discovery interfaces. The supervisory device converts, starting from at least one of the network devices farthest from the seed device in the Layer 2 topology and ending with the seed device, links of the Layer 2 topology into Layer 3 links, to form an underlay network.

公开(公告)号：US09838314B1

公开(公告)日：2017-12-05

申请号：US15155393

申请日：2016-05-16

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Kumar Hooda ,  Atri Indiresan ,  Sandesh Kumar B Narappa ,  Rajesh Arora

IPC: H04L29/12 ,  H04L12/741 ,  H04L12/46 ,  H04L12/947

CPC classification number: H04L45/74 ,  H04L12/4633 ,  H04L49/25

Abstract: In one embodiment, contextual service mobility in an enterprise fabric network environment (e.g., overlay and underlay networks) provides for moving of the location of a service being applied to packets with minimal updates to the mapping database. The mapping database is used to convert addresses of the overlay network to physical network and service addresses. The mapping database provides contextual lookup operations on the same destination address of a packet being forwarded in the overlay network to provide different results. The contextual lookup operations provide for a packet to be forwarded to a service node or its intended destination depending on the current context. In one embodiment, the enterprise fabric network uses Locator/ID Separation Protocol (LISP), a network architecture and set of protocols that uses different overlay and underlay namespaces and a distributed mapping database for converting an overlay address to an underlay address.

公开(公告)号：US20170331733A1

公开(公告)日：2017-11-16

申请号：US15155393

申请日：2016-05-16

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Kumar Hooda ,  Atri Indiresan ,  Sandesh Kumar B Narappa ,  Rajesh Arora

IPC: H04L12/741 ,  H04L12/947 ,  H04L12/46

CPC classification number: H04L45/74 ,  H04L12/4633 ,  H04L49/25

Abstract: In one embodiment, contextual service mobility in an enterprise fabric network environment (e.g., overlay and underlay networks) provides for moving of the location of a service being applied to packets with minimal updates to the mapping database. The mapping database is used to convert addresses of the overlay network to physical network and service addresses. The mapping database provides contextual lookup operations on the same destination address of a packet being forwarded in the overlay network to provide different results. The contextual lookup operations provide for a packet to be forwarded to a service node or its intended destination depending on the current context. In one embodiment, the enterprise fabric network uses Locator/ID Separation Protocol (LISP), a network architecture and set of protocols that uses different overlay and underlay namespaces and a distributed mapping database for converting an overlay address to an underlay address.