公开(公告)号：US20210036987A1

公开(公告)日：2021-02-04

申请号：US16530596

申请日：2019-08-02

Applicant: Cisco Technology, Inc.

Inventor： Ajay Kumar Mishra ,  Satyajit Das ,  Laxmikantha Reddy Ponnuru ,  Anubhav Gupta

IPC: H04L29/12 ,  H04L12/24 ,  H04L12/46 ,  H04L12/707

Abstract: A WAN controller can configure a first WAN interface on a first WAN edge device to connect to a first transport network. The WAN controller can configure a second WAN interface on a second WAN edge device to connect to a second transport network. The WAN controller or the first WAN edge device, connected to a first access device of an access network, can determine the first WAN edge device has no Layer 2 connectivity to the second WAN edge device, connected to a second access device of the access network. The WAN controller or the first WAN edge device can establish a tunnel between the first WAN edge device and the second WAN interface. The WAN controller can route a specified class of WAN traffic received by the first WAN edge device from the access network through the tunnel.

公开(公告)号：US11646956B2

公开(公告)日：2023-05-09

申请号：US16675465

申请日：2019-11-06

Applicant: Cisco Technology, Inc.

Inventor： Anubhav Gupta ,  Mahesh Eknath Bhole ,  Laxmikantha Reddy Ponnuru ,  Ajay Kumar Mishra ,  Prabahar Radhakrishnan

IPC: G06F15/173 ,  H04L43/0829 ,  H04L43/0811 ,  H04L43/0817 ,  H04L41/0604 ,  H04L45/42 ,  H04L45/00 ,  H04L43/087

CPC classification number: H04L43/0829 ,  H04L41/0627 ,  H04L43/087 ,  H04L43/0811 ,  H04L43/0817 ,  H04L45/22 ,  H04L45/42

Abstract: Disclosed is a first device and a second device each sending BFD echo request packets in an initial stage of establishing communication between the two devices. A method can include determining that a certain mode is detected, such as a low bandwidth mode. The method can be practiced by one or both of the devices or a separate network controller. Based on the detection of the certain mode or the communication link being in a certain mode, the method includes the first device or the second device electing to be a master or a slave. Upon establishing that one of the devices is the master and the other of the devices is a slave, only the master will send BFD echo request packets.

公开(公告)号：US20210029008A1

公开(公告)日：2021-01-28

申请号：US16675465

申请日：2019-11-06

Applicant: Cisco Technology, Inc.

Inventor： Anubhav Gupta ,  Mahesh Eknath Bhole ,  Laxmikantha Reddy Ponnuru ,  Ajay Kumar Mishra ,  Prabahar Radhakrishnan

IPC: H04L12/26 ,  H04L12/717 ,  H04L12/707 ,  H04L12/24

Abstract: Disclosed is a first device and a second device each sending BFD echo request packets in an initial stage of establishing communication between the two devices. A method can include determining that a certain mode is detected, such as a low bandwidth mode. The method can be practiced by one or both of the devices or a separate network controller. Based on the detection of the certain mode or the communication link being in a certain mode, the method includes the first device or the second device electing to be a master or a slave. Upon establishing that one of the devices is the master and the other of the devices is a slave, only the master will send BFD echo request packets.

公开(公告)号：US11329950B2

公开(公告)日：2022-05-10

申请号：US16530596

申请日：2019-08-02

Applicant: Cisco Technology, Inc.

Inventor： Ajay Kumar Mishra ,  Satyajit Das ,  Laxmikantha Reddy Ponnuru ,  Anubhav Gupta

IPC: H04W56/00 ,  H04L61/2592 ,  H04L61/5007 ,  H04L41/08 ,  H04L41/0668 ,  H04L45/00 ,  H04L12/46 ,  H04L67/12

Abstract: A WAN controller can configure a first WAN interface on a first WAN edge device to connect to a first transport network. The WAN controller can configure a second WAN interface on a second WAN edge device to connect to a second transport network. The WAN controller or the first WAN edge device, connected to a first access device of an access network, can determine the first WAN edge device has no Layer 2 connectivity to the second WAN edge device, connected to a second access device of the access network. The WAN controller or the first WAN edge device can establish a tunnel between the first WAN edge device and the second WAN interface. The WAN controller can route a specified class of WAN traffic received by the first WAN edge device from the access network through the tunnel.