公开(公告)号：US10243916B2

公开(公告)日：2019-03-26

申请号：US15093541

申请日：2016-04-07

Applicant: CISCO TECHNOLOGY, INC.

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

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

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：US20240348549A1

公开(公告)日：2024-10-17

申请号：US18356853

申请日：2023-07-21

Applicant: Cisco Technology, Inc.

Inventor： Pritam Baruah ,  Amjad Inamdar ,  Laxmikantha Reddy Ponnuru ,  Samir D. Thoria

IPC: H04L47/2408 ,  H04L45/24

CPC classification number: H04L47/2408 ,  H04L45/24

Abstract: The present disclosure is directed to making service-chains routable and intent-based within an enterprise network. In one aspect, a method for simplifying steering of network traffic includes receiving an intent-based description of one or more services to be applied to the network traffic; defining a type for a service chain that includes the one or more services based on the intent-based description, the type serving as an address for the service chain for routing the network traffic to and from the one or more service included in the service chain; implementing the service chain at one or more network hubs; and implementing a traffic steering policy in the network for steering the network traffic to the one or more network hubs to be serviced by the one or more services.

公开(公告)号：US10785186B2

公开(公告)日：2020-09-22

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 ,  H04L12/46 ,  H04L29/08 ,  G06F9/455

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：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：US20170295130A1

公开(公告)日：2017-10-12

申请号：US15093541

申请日：2016-04-07

Applicant: CISCO TECHNOLOGY, INC.

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

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

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. The method further includes, if the destination address information is stored in the cache of the controller, sending a proxy ARP response to the source VTEP via the control plane, in which the proxy ARP response includes the destination address information; and if the destination address information is not stored in the cache of the controller, sending the request message to each one of the plurality of other VTEPs having the same VNI as the source VTEP via the control plane.