公开(公告)号：US11563686B2

公开(公告)日：2023-01-24

申请号：US17122014

申请日：2020-12-15

申请人： Cisco Technology Inc.

发明人： Changhong Shen ,  Hongbo Xia ,  Xiao-Rong Wang ,  Yin Wang ,  Lulu Wang

IPC分类号： H04L12/46 ,  H04L12/26 ,  H04L12/801 ,  H04L12/851 ,  H04L47/12 ,  H04L43/16 ,  H04L47/24

摘要： According to certain embodiments, a system comprises one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations. The operations comprise sending data from a hub to a spoke and receiving feedback from the spoke at the hub. The feedback is based on at least one of bandwidth utilization or occurrence of a congestion state detected by the spoke. The operations further comprise adjusting a shaper rate of an adaptive Quality of Service (QoS) shaper based at least in part on the feedback received from the spoke.

公开(公告)号：US11329924B2

公开(公告)日：2022-05-10

申请号：US16891624

申请日：2020-06-03

申请人： Cisco Technology, Inc.

发明人： Hongbo Xia ,  Xiaorong Wang ,  Yu Zhang ,  Changhong Shen

IPC分类号： H04L12/815 ,  H04L47/22 ,  H04L47/24 ,  H04L47/34

摘要： In one embodiment, a method includes determining, by a first network component, a sender shaper drop value based on the following: a maximum sequence number; a minimum sequence number; and a sender sequence counter number associated with the first network component. The method also includes determining, by the first network component, a wide area network (WAN) link drop value based on the sender sequence counter number associated with the first network component and a receiver sequence counter number associated with a second network component. The method further includes determining, by the first network component, whether to adjust a sender shaper rate based on the sender shaper drop value and the WAN link drop value.

公开(公告)号：US20220263761A1

公开(公告)日：2022-08-18

申请号：US17734566

申请日：2022-05-02

申请人： Cisco Technology, Inc.

发明人： Hongbo Xia ,  Xiaorong Wang ,  Yu Zhang ,  Changhong Shen

IPC分类号： H04L47/22 ,  H04L47/24 ,  H04L47/34

摘要： In one embodiment, a method includes determining, by a first network component, a sender shaper drop value based on the following: a maximum sequence number; a minimum sequence number; and a sender sequence counter number associated with the first network component. The method also includes determining, by the first network component, a wide area network (WAN) link drop value based on the sender sequence counter number associated with the first network component and a receiver sequence counter number associated with a second network component. The method further includes determining, by the first network component, whether to adjust a sender shaper rate based on the sender shaper drop value and the WAN link drop value.

公开(公告)号：US20210385166A1

公开(公告)日：2021-12-09

申请号：US16891624

申请日：2020-06-03

申请人： Cisco Technology, Inc.

发明人： Hongbo Xia ,  Xiaorong Wang ,  Yu Zhang ,  Changhong Shen

IPC分类号： H04L12/815 ,  H04L12/801 ,  H04L12/851

摘要： In one embodiment, a method includes determining, by a first network component, a sender shaper drop value based on the following: a maximum sequence number; a minimum sequence number; and a sender sequence counter number associated with the first network component. The method also includes determining, by the first network component, a wide area network (WAN) link drop value based on the sender sequence counter number associated with the first network component and a receiver sequence counter number associated with a second network component. The method further includes determining, by the first network component, whether to adjust a sender shaper rate based on the sender shaper drop value and the WAN link drop value.

公开(公告)号：US11190434B2

公开(公告)日：2021-11-30

申请号：US16819940

申请日：2020-03-16

申请人： Cisco Technology Inc.

发明人： Changhong Shen ,  Hongbo Xia ,  Xiao-Rong Wang ,  Yu Zhang

IPC分类号： H04L12/26

摘要： The present disclosure is directed to determining bandwidth capacity in a WAN path and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations including, selecting a SD-WAN path for which to determine bandwidth capacity, wherein the path is associated with a Quality of Service (QoS) shaper having a pre-determined shaper rate, incrementally increasing a test load applied on the selected path, wherein the test load is applied concurrently with existing user traffic, calculating a performance score for the path after each increase in the test load, determining a performance of the path based on the calculated performance score, and updating the shaper rate of the QoS shaper based on the performance of the path.

公开(公告)号：US20210288898A1

公开(公告)日：2021-09-16

申请号：US16819940

申请日：2020-03-16

申请人： Cisco Technology Inc.

发明人： Changhong Shen ,  Hongbo Xia ,  Xiao-Rong Wang ,  Yu Zhang

IPC分类号： H04L12/26

摘要： The present disclosure is directed to determining bandwidth capacity in a WAN path and includes one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations including, selecting a SD-WAN path for which to determine bandwidth capacity, wherein the path is associated with a Quality of Service (QoS) shaper having a pre-determined shaper rate, incrementally increasing a test load applied on the selected path, wherein the test load is applied concurrently with existing user traffic, calculating a performance score for the path after each increase in the test load, determining a performance of the path based on the calculated performance score, and updating the shaper rate of the QoS shaper based on the performance of the path.

公开(公告)号：US20240250909A1

公开(公告)日：2024-07-25

申请号：US18626851

申请日：2024-04-04

申请人： Cisco Technology, Inc.

发明人： Hongbo Xia ,  Xiaorong Wang ,  Yu Zhang ,  Changhong Shen

IPC分类号： H04L47/22 ,  H04L47/24 ,  H04L47/34

CPC分类号： H04L47/22 ,  H04L47/24 ,  H04L47/34

摘要： In one embodiment, a method includes determining, by a first network component, a sender shaper drop value based on the following: a maximum sequence number; a minimum sequence number; and a sender sequence counter number associated with the first network component. The method also includes determining, by the first network component, a wide area network (WAN) link drop value based on the sender sequence counter number associated with the first network component and a receiver sequence counter number associated with a second network component. The method further includes determining, by the first network component, whether to adjust a sender shaper rate based on the sender shaper drop value and the WAN link drop value.

公开(公告)号：US20240137335A1

公开(公告)日：2024-04-25

申请号：US18396214

申请日：2023-12-26

申请人： Cisco Technology, Inc.

发明人： Changhong Shen ,  Sampath Kumar ,  Ruozhong Xuan ,  Yin Wang ,  Madhu Gindi ,  Garima Pal ,  Vincent Li

IPC分类号： H04L61/2514 ,  H04L9/40 ,  H04L45/748

CPC分类号： H04L61/2514 ,  H04L45/748 ,  H04L63/0272 ,  H04L2101/35

摘要： In one embodiment, a method includes determining, by a router, a common prefix pool from a transport interface associated with a transport virtual private network (VPN). The method also includes identifying, by the router, a prefix associated with a service VPN and generating, by the router, an IPv6-to-IPv6 Network Address Translation (NAT66) prefix translation using the common prefix pool and the prefix. The NAT66 prefix translation includes a predetermined prefix length. The method further includes automatically installing, by the router, the NAT66 prefix translation into a translation table.

公开(公告)号：US11956153B2

公开(公告)日：2024-04-09

申请号：US17734566

申请日：2022-05-02

申请人： Cisco Technology, Inc.

发明人： Hongbo Xia ,  Xiaorong Wang ,  Yu Zhang ,  Changhong Shen

IPC分类号： H04L47/22 ,  H04L47/24 ,  H04L47/34

CPC分类号： H04L47/22 ,  H04L47/24 ,  H04L47/34

摘要： In one embodiment, a method includes determining, by a first network component, a sender shaper drop value based on the following: a maximum sequence number; a minimum sequence number; and a sender sequence counter number associated with the first network component. The method also includes determining, by the first network component, a wide area network (WAN) link drop value based on the sender sequence counter number associated with the first network component and a receiver sequence counter number associated with a second network component. The method further includes determining, by the first network component, whether to adjust a sender shaper rate based on the sender shaper drop value and the WAN link drop value.

公开(公告)号：US11863515B2

公开(公告)日：2024-01-02

申请号：US17689051

申请日：2022-03-08

申请人： Cisco Technology, Inc.

发明人： Changhong Shen ,  Sampath Kumar ,  Ruozhong Xuan ,  Yin Wang ,  Madhu Gindi ,  Garima Pal ,  Vincent Li

IPC分类号： H04L45/748 ,  H04L9/40 ,  H04L61/2514 ,  H04L101/35 ,  H04L101/659

CPC分类号： H04L61/2514 ,  H04L45/748 ,  H04L63/0272 ,  H04L2101/35 ,  H04L2101/659

摘要： In one embodiment, a method includes determining, by a router, a common prefix pool from a transport interface associated with a transport virtual private network (VPN). The method also includes identifying, by the router, a prefix associated with a service VPN and generating, by the router, an IPv6-to-IPv6 Network Address Translation (NAT66) prefix translation using the common prefix pool and the prefix. The NAT66 prefix translation includes a predetermined prefix length. The method further includes automatically installing, by the router, the NAT66 prefix translation into a translation table.