公开(公告)号：US10693733B2

公开(公告)日：2020-06-23

申请号：US15912839

申请日：2018-03-06

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Hooda ,  Johnson Leong ,  Satish Kondalam ,  Victor Moreno ,  Rohan Grover

IPC: H04L12/24 ,  H04L29/12 ,  H04L12/947 ,  H04L12/931

Abstract: A method for establishing a partitioned fabric network is described. The method includes establishing a fabric network including a plurality of border nodes to couple the fabric network to one or more external data networks and a plurality of edge nodes to couple to the fabric network to one or more hosts. The method further includes defining a plurality of partitions of the fabric network. The method further includes registering each of the plurality of partitions with a corresponding one of the plurality of border nodes and with each of the plurality of edge nodes.

公开(公告)号：US20190174301A1

公开(公告)日：2019-06-06

申请号：US16273436

申请日：2019-02-12

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Hooda ,  Vrushali Ashtaputre ,  Sudhir Jain ,  Johnson Leong ,  Shree Murthy

IPC: H04W8/26 ,  H04L12/755 ,  H04W8/08

Abstract: A system and method for fast roaming in one or more enterprise fabric network. The fast roaming involves correlation operations performed in one or more databases managed by control plane of the fabric network to update routing locator entries associated with L2-VNID and L3-VNID in one or more databases when a client moves from behind a first switch to behind a second switch. In some embodiments, the control plane finds the L3-VNID from the L2-VNID. The L3-VNID is used to search for all IP addresses corresponding to a client-MAC. At least new routing locator value that is used in the routing locator entries is provided to the first switch, the second switch, and border nodes associated with the fabric network.

公开(公告)号：US10212583B1

公开(公告)日：2019-02-19

申请号：US15660247

申请日：2017-07-26

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Hooda ,  Vrushali Ashtaputre ,  Sudhir Jain ,  Johnson Leong ,  Shree Murthy

IPC: H04W4/00 ,  H04W8/26 ,  H04L12/755 ,  H04W8/08

Abstract: A system and method for fast roaming in one or more enterprise fabric network. The fast roaming involves correlation operations performed in one or more databases managed by control plane of the fabric network to update routing locator entries associated with L2-VNID and L3-VNID in one or more databases when a client moves from behind a first switch to behind a second switch. In some embodiments, the control plane finds the L3-VNID from the L2-VNID. The L3-VNID is used to search for all IP addresses corresponding to a client-MAC. At least new routing locator value that is used in the routing locator entries is provided to the first switch, the second switch, and border nodes associated with the fabric network.

公开(公告)号：US11108690B2

公开(公告)日：2021-08-31

申请号：US16118709

申请日：2018-08-31

Applicant: Cisco Technology, Inc.

Inventor： Marc Portoles Comeras ,  Alberto Rodriguez Natal ,  Vina Ermagan ,  Reshad Rahman ,  Johnson Leong

IPC: H04L12/715 ,  H04L12/46 ,  H04L12/707 ,  H04L12/743 ,  H04L12/747

Abstract: A method and a router device for managing memory for network overlay routes with fallback route support prioritization may be provided. A network overlay route as a candidate network overlay route may be obtained at a router for storage in a memory. The memory may store a plurality of network overlay routes for forwarding user plane traffic in a network. An assessment for storage of the candidate network overlay route based on a priority level indicator of the candidate network overlay route may be performed. The priority level indicator may be indicative of a fallback route support level of the candidate network overlay route in the router. Based on the assessment, at least one of the following may be performed: adding the candidate network overlay route to the memory and refraining from adding the candidate network overlay route to the memory.

公开(公告)号：US10999239B2

公开(公告)日：2021-05-04

申请号：US16715382

申请日：2019-12-16

Applicant: Cisco Technology, Inc.

Inventor： Jesus Arango ,  Vina Ermagan ,  Johnson Leong ,  Sanjay Kumar Hooda

IPC: H04L12/28 ,  H04L29/12 ,  H04L12/713 ,  H04L12/26

Abstract: A Location/Identifier Separation Protocol (LISP) mapping server, including: a network interface for communicating with a LISP-enabled network; a mapping database; a subscription database; and an overlapping subscription publication engine (OSPE) to: receive a first mapping of a first subnetwork to a first routing locator (RLOC); add the first mapping to the mapping database; receive from a first ingress tunnel router (ITR) a subscription request for an endpoint identifier (EID) within the first subnetwork; add to a first subscription entry for the first subnetwork in the subscription database a subscription for the first ITR; receive a second mapping of a second subnetwork to a second RLOC, wherein the second subnetwork overlaps the first subnetwork; add the second mapping to the mapping database; and copy at least part of the first subscription entry to a second subscription entry for the second subnetwork.

公开(公告)号：US20190037390A1

公开(公告)日：2019-01-31

申请号：US15660247

申请日：2017-07-26

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Hooda ,  Vrushali Ashtaputre ,  Sudhir Jain ,  Johnson Leong ,  Shree Murthy

IPC: H04W8/26 ,  H04L12/755 ,  H04W8/08

Abstract: A system and method for fast roaming in one or more enterprise fabric network. The fast roaming involves correlation operations performed in one or more databases managed by control plane of the fabric network to update routing locator entries associated with L2-VNID and L3-VNID in one or more databases when a client moves from behind a first switch to behind a second switch. In some embodiments, the control plane finds the L3-VNID from the L2-VNID. The L3-VNID is used to search for all IP addresses corresponding to a client-MAC. At least new routing locator value that is used in the routing locator entries is provided to the first switch, the second switch, and border nodes associated with the fabric network.

公开(公告)号：US10952068B2

公开(公告)日：2021-03-16

申请号：US16779903

申请日：2020-02-03

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Hooda ,  Vrushali Ashtaputre ,  Sudhir Jain ,  Johnson Leong ,  Shree Murthy

IPC: H04W8/26 ,  H04L12/755 ,  H04W8/08 ,  H04L12/721

Abstract: A system and method for fast roaming in one or more enterprise fabric network. The fast roaming involves correlation operations performed in one or more databases managed by control plane of the fabric network to update routing locator entries associated with L2-VNID and L3-VNID in one or more databases when a client moves from behind a first switch to behind a second switch. In some embodiments, the control plane finds the L3-VNID from the L2-VNID. The L3-VNID is used to search for all IP addresses corresponding to a client-MAC. At least new routing locator value that is used in the routing locator entries is provided to the first switch, the second switch, and border nodes associated with the fabric network.

公开(公告)号：US20200169872A1

公开(公告)日：2020-05-28

申请号：US16779903

申请日：2020-02-03

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Hooda ,  Vrushali Ashtaputre ,  Sudhir Jain ,  Johnson Leong ,  Shree Murthy

IPC: H04W8/26 ,  H04W8/08 ,  H04L12/755

Abstract: A system and method for fast roaming in one or more enterprise fabric network. The fast roaming involves correlation operations performed in one or more databases managed by control plane of the fabric network to update routing locator entries associated with L2-VNID and L3-VNID in one or more databases when a client moves from behind a first switch to behind a second switch. In some embodiments, the control plane finds the L3-VNID from the L2-VNID. The L3-VNID is used to search for all IP addresses corresponding to a client-MAC. At least new routing locator value that is used in the routing locator entries is provided to the first switch, the second switch, and border nodes associated with the fabric network.

公开(公告)号：US20180343227A1

公开(公告)日：2018-11-29

申请号：US15607248

申请日：2017-05-26

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jesus Arango ,  Vina Ermagan ,  Johnson Leong ,  Sanjay Kumar Hooda

IPC: H04L29/12 ,  H04L12/24

CPC classification number: H04L61/103 ,  H04L43/08 ,  H04L45/586 ,  H04L61/2084

Abstract: A Location/Identifier Separation Protocol (LISP) mapping server, including: a network interface for communicating with a LISP-enabled network; a mapping database; a subscription database; and an overlapping subscription publication engine (OSPE) to: receive a first mapping of a first subnetwork to a first routing locator (RLOC); add the first mapping to the mapping database; receive from a first ingress tunnel router (ITR) a subscription request for an endpoint identifier (EID) within the first subnetwork; add to a first subscription entry for the first subnetwork in the subscription database a subscription for the first ITR; receive a second mapping of a second subnetwork to a second RLOC, wherein the second subnetwork overlaps the first subnetwork; add the second mapping to the mapping database; and copy at least part of the first subscription entry to a second subscription entry for the second subnetwork.

公开(公告)号：US11582597B2

公开(公告)日：2023-02-14

申请号：US17170982

申请日：2021-02-09

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Hooda ,  Vrushali Ashtaputre ,  Sudhir Jain ,  Johnson Leong ,  Shree Murthy

IPC: H04W8/26 ,  H04L45/021 ,  H04W8/08 ,  H04L45/00

Abstract: A system and method for fast roaming in one or more enterprise fabric network. The fast roaming involves correlation operations performed in one or more databases managed by control plane of the fabric network to update routing locator entries associated with L2-VNID and L3-VNID in one or more databases when a client moves from behind a first switch to behind a second switch. In some embodiments, the control plane finds the L3-VNID from the L2-VNID. The L3-VNID is used to search for all IP addresses corresponding to a client-MAC. At least new routing locator value that is used in the routing locator entries is provided to the first switch, the second switch, and border nodes associated with the fabric network.