公开(公告)号：US20190124038A1

公开(公告)日：2019-04-25

申请号：US16226444

申请日：2018-12-19

Applicant: Cisco Technology, Inc.

Inventor： Mehak Mahajan ,  Samir D. Thoria ,  Shyam Kapadia

IPC: H04L29/12 ,  G06F9/455 ,  H04L12/46 ,  H04L29/08

CPC classification number: H04L61/103 ,  G06F9/45558 ,  G06F2009/4557 ,  G06F2009/45595 ,  H04L12/4633 ,  H04L12/4641 ,  H04L67/2842

Abstract: A method is provided in one example embodiment and includes receiving at a controller an Address Resolution Protocol (“ARP”) packet from a source VXLAN Tunnel End Point (“VTEP”) serving a source host and identifying a destination, the source VTEP having assigned thereto a Virtual Network Identifier (“VNI”) identifying a VXLAN network to which the source VTEP and a plurality of other VTEPs belong, the ARP packet being received by the controller via a control plane; determining whether the received ARP packet is a request message; and, if the received ARP packet is a request message, determining whether address information for the identified destination is stored in a cache of the controller.

公开(公告)号：US20180349033A1

公开(公告)日：2018-12-06

申请号：US15614743

申请日：2017-06-06

Applicant: Cisco Technology, Inc.

Inventor： Shyam Kapadia ,  Viral Barot ,  Abhinandan Prativadi Bayankaram ,  Naoshad Mehta ,  Nilesh Shah

IPC: G06F3/06 ,  H04L12/58

Abstract: A network device is configured to establish a messaging bus with a container networking plug-in, which is associated with a container virtual network. The network device is also configured to obtain, via the messaging bus, networking information for one or more containers hosted at the at least one container-hosting computing device. Based on the networking information, the network device provides visibility of one or more containers below the network device.

公开(公告)号：US10078534B2

公开(公告)日：2018-09-18

申请号：US14836004

申请日：2015-08-26

Applicant: Cisco Technology, Inc.

Inventor： Padmanabhan Krishnan ,  Rajesh Babu Nataraja ,  Shyam Kapadia ,  Nader Lahouti ,  Viral Rajeshbhai Barot ,  Jay Ajaykumar Gheewala

IPC: G06F9/50 ,  H04L29/08 ,  H04L29/06

CPC classification number: G06F9/505 ,  G06F2209/501 ,  H04L67/1008 ,  H04L67/1012 ,  H04L67/38

Abstract: Embodiments include determining computing resources within one or more data centers onto which a virtual workload can be deployed. Network state data is determined for a plurality of network resources within a network fabric of a data center. For each of the plurality of computing resources, embodiments determine a respective suitability value describing a fitness of the respective physical server for deploying at least a portion of the virtual workload. Such a determination includes determining a respective at least one of the plurality of network resources within the at least one network fabric corresponding to the respective computing resource and determining a current workload of the at least one network resource, based on the network state data. Upon selecting one or more computing resources of the plurality of computing resources based on the determined suitability values, embodiments deploy the virtual workload onto the selected one or more computing resources.

公开(公告)号：US10050876B2

公开(公告)日：2018-08-14

申请号：US14539176

申请日：2014-11-12

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Shyam Kapadia ,  Lukas Krattiger

IPC: H04L12/28 ,  H04L12/715 ,  H04L12/723 ,  H04L12/741 ,  H04L12/46

Abstract: In one embodiment, a method includes importing a route target for a remote Virtual Routing and Forwarding instance (VRF) at a leaf node in an overlay network, the leaf node comprising at least one local VRF configured thereon, processing routes received for the route target at the leaf node, and installing the routes for the remote VRF at the local VRF at the leaf node to enable inter-VRF communication via the leaf node. An apparatus and logic are also disclosed herein.

公开(公告)号：US10044562B2

公开(公告)日：2018-08-07

申请号：US14932719

申请日：2015-11-04

Applicant: Cisco Technology, Inc.

Inventor： Vrishab Sikand ,  Victor Moreno ,  Liqin Dong ,  Lifen Tian ,  Shyam Kapadia

IPC: G06F15/177 ,  H04L12/24 ,  H04L29/12

Abstract: Techniques are disclosed for configuring a LISP mobility network. A management tool receives a configuration for a network fabric. The configuration specifies values for one or more attributes associated with a Locator ID Separation Protocol (LISP)-enabled network. The management tool generates one or more commands based on the specified values for the one or more attributes associated with the LISP-enabled network. The generated commands are distributed to a plurality of network devices in the network fabric. Each network device executes the one or more commands to configure the network fabric.

公开(公告)号：US20180041363A1

公开(公告)日：2018-02-08

申请号：US15228899

申请日：2016-08-04

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Victor Manuel Moreno ,  Padmanabhan Krishnan ,  Nilesh Shah ,  Suvil Singh Deora ,  Shyam Kapadia

IPC: H04L12/46 ,  H04L29/08

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L12/66 ,  H04L41/022 ,  H04L41/0226 ,  H04L67/02 ,  H04L67/10 ,  H04L2212/00

Abstract: In one embodiment a method includes receiving a first message including information regarding a first host connected to a first tunnel endpoint in a first network domain, the received information being encoded in accordance with a control plane protocol of the first network domain; translating the received first message in accordance with an API and/or a database schema of a second network domain; and transmitting the translated first message to the second network domain. The method further includes receiving a second message comprising information regarding a second host connected to a second tunnel endpoint in the second network domain, the received information being encoded in accordance with the API and/or the database schema of the second network domain; translating the second received message in accordance with the control plane protocol of the first network domain; and transmitting the translated second message to the first network domain.

公开(公告)号：US20180013654A1

公开(公告)日：2018-01-11

申请号：US15205031

申请日：2016-07-08

Applicant: Cisco Technology, Inc.

Inventor： Shyam Kapadia ,  Lukas Krattiger ,  Wing Hon Yeung ,  Uffaz Nathaniel ,  Richard Lam

IPC: H04L12/26 ,  H04L12/46 ,  H04L12/24 ,  H04L29/08

CPC classification number: H04L67/18 ,  H04L12/4641 ,  H04L41/0856 ,  H04L41/12

Abstract: Presented herein are techniques for actively monitoring, at a network controller, a network location of an endpoint connected to the network based on control plane updates. The network controller is configured to archive the network location of the endpoint, along with local information for the endpoint, in an endpoint tracking database of the network controller.

公开(公告)号：US20170295093A1

公开(公告)日：2017-10-12

申请号：US15161636

申请日：2016-05-23

Applicant: Cisco Technology, Inc.

Inventor： Victor Moreno ,  Shyam Kapadia ,  Murali Venkateshaiah ,  John Lo ,  Liqin Dong

IPC: H04L12/715 ,  H04L12/753 ,  H04L12/46 ,  H04H20/26 ,  H04L12/741

CPC classification number: H04L45/64 ,  H04H20/26 ,  H04L12/1836 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/48 ,  H04L45/745

Abstract: Presented herein are hybrid approaches to multi-destination traffic forwarding in overlay networks that can be used to facilitate interoperability between head-end-replication-support network devices (i.e., those that only use head-end-replication) and multicast-support network devices (i.e., those that only use native multicast). By generally using existing tunnel end-points (TEPs) supported functionality for sending multi-destination traffic and enhancing the TEPs to receive multi-destination traffic with the encapsulation scheme they do not natively support, the presented methods and systems minimize the required enhancements to achieve interoperability and circumvents any hard limitations that the end-point hardware may have. The present methods and systems may be used with legacy hardware that are commissioned or deployed as well as new hardware that are configured with legacy protocols.

公开(公告)号：US09699066B2

公开(公告)日：2017-07-04

申请号：US15280612

申请日：2016-09-29

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Shyam Kapadia ,  Vrishabha Sikand

IPC: H04L12/26 ,  H04L12/751 ,  H04L12/44

CPC classification number: H04L45/08 ,  H04L12/44 ,  H04L45/02

Abstract: A system and a method for providing conversational learning is implemented in a network environment. An exemplary method includes receiving a subnet route advertisement that includes an attribute that triggers glean behavior for routing decisions; and installing a subnet entry in a Forwarding Information Base/Adjacency (FIB/ADJ) table. The subnet entry includes a subnet associated with the subnet route advertisement and a corresponding glean adjacency. The corresponding glean adjacency is configured to trigger installation of a host entry associated with a host in an active conversation in a network.

公开(公告)号：US20170171057A1

公开(公告)日：2017-06-15

申请号：US15043079

申请日：2016-02-12

Applicant: Cisco Technology, Inc.

Inventor： Liqin Dong ,  Shyam Kapadia ,  Neeraj Malhotra ,  Richard Lam ,  Lukas Krattiger

IPC: H04L12/751

CPC classification number: H04L45/02

Abstract: Presented herein are methods for advertising an IP prefix to address the connectivity problem in multi-chassis link aggregation scenario. A peer switch will advertise two VTEP addresses. It will use a physical IP (PIP) address as a next hop (NH) for a prefix route, while continuing to use a VIP for host IP and MAC route advertisement. A new virtual MAC is introduced and it is derived from the VIP as the router MAC associated with VIP. A switch is made to use a VIP for prefix advertisement when a device detects that the same prefix is reachable both locally and from its peer. This saves adjacency entries consumed in the remote VTEPs. These techniques fix the connectivity issue for prefix routes that is exposed with current EVPN, without requiring any additional adjacency resource consumption.