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1. 发明授权

US09331941B2 Traffic flow redirection between border routers using routing encapsulation 有权
标题翻译：使用路由封装的边界路由器之间的流量重定向
公开(公告)号：US09331941B2
公开(公告)日：2016-05-03
申请号：US13964244
申请日：2013-08-12
申请人： Cisco Technology, Inc.
发明人： Xiaorong Wang , Dapeng Liu , Hunan Cao , Hongbo Xia
IPC分类号： H04L12/741 , H04L12/803 , H04L12/721 , H04L12/715
CPC分类号： H04L45/745 , H04L12/4633 , H04L45/04 , H04L45/38 , H04L45/50 , H04L45/74 , H04L47/125 , H04L47/20
摘要： In response to receiving one or more packets from an interface, an anchoring border router classifies the traffic flow and either transmits the packets based upon the routing control table as usual, or determines that the packets of the traffic flow are to be forwarded to a forwarding border router. Upon determining that the packets are to be forwarded, the packets are encapsulated with a routing encapsulation key corresponding to a routing path and are forwarded from the anchoring border router to the forwarding border router via a routing encapsulation tunnel. When a forwarding border router receives the redirected packets over the routing encapsulation tunnel, the forwarding border router removes the routing encapsulation key from the packets of the traffic flow and transmits the packets via a routing path corresponding to the routing encapsulation key.
摘要翻译：响应于从接口接收到一个或多个分组，锚定边界路由器对业务流进行分类，并根据路由控制表照常发送分组，或者确定业务流的分组将被转发到转发边界路由器。在确定要转发数据包时，将使用对应于路由路由的路由封装密钥封装数据包，并通过路由封装隧道从锚定边界路由器转发到转发边界路由器。当转发边界路由器通过路由封装隧道接收到重定向报文时，转发边界路由器从业务流分组中删除路由封装密钥，并通过与路由封装密钥相对应的路由路径发送报文。

2. 发明授权

US11563686B2 Dynamic deterministic adjustment of bandwidth across multiple hubs with adaptive per-tunnel quality of service (QoS) 有权
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.

3. 发明授权

US11329924B2 Systems and methods for adapting a WAN egress shaper rate 有权
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.

4. 发明授权

US09755971B2 Traffic flow redirection between border routers using routing encapsulation 有权
公开(公告)号：US09755971B2
公开(公告)日：2017-09-05
申请号：US15042222
申请日：2016-02-12
申请人： Cisco Technology, Inc.
发明人： Xiaorong Wang , Dapeng Liu , Hunan Cao , Hongbo Xia
IPC分类号： H04L12/741 , H04L12/803 , H04L12/721 , H04L12/715 , H04L12/46 , H04L12/723 , H04L12/813
CPC分类号： H04L45/745 , H04L12/4633 , H04L45/04 , H04L45/38 , H04L45/50 , H04L45/74 , H04L47/125 , H04L47/20
摘要： In response to receiving one or more packets from an interface, an anchoring border router classifies the traffic flow and either transmits the packets based upon the routing control table as usual, or determines that the packets of the traffic flow are to be forwarded to a forwarding border router. Upon determining that the packets are to be forwarded, the packets are encapsulated with a routing encapsulation key corresponding to a routing path and are forwarded from the anchoring border router to the forwarding border router via a routing encapsulation tunnel. When a forwarding border router receives the redirected packets over the routing encapsulation tunnel, the forwarding border router removes the routing encapsulation key from the packets of the traffic flow and transmits the packets via a routing path corresponding to the routing encapsulation key.

5. 发明申请

US20160164782A1 Traffic Flow Redirection between Border Routers using Routing Encapsulation 审中-公开
公开(公告)号：US20160164782A1
公开(公告)日：2016-06-09
申请号：US15042222
申请日：2016-02-12
申请人： Cisco Technology, Inc.
发明人： Xiaorong Wang , Dapeng Liu , Hunan Cao , Hongbo Xia
IPC分类号： H04L12/741 , H04L12/721 , H04L12/723 , H04L12/46 , H04L12/813 , H04L12/715 , H04L12/803
CPC分类号： H04L45/745 , H04L12/4633 , H04L45/04 , H04L45/38 , H04L45/50 , H04L45/74 , H04L47/125 , H04L47/20
摘要： In response to receiving one or more packets from an interface, an anchoring border router classifies the traffic flow and either transmits the packets based upon the routing control table as usual, or determines that the packets of the traffic flow are to be forwarded to a forwarding border router. Upon determining that the packets are to be forwarded, the packets are encapsulated with a routing encapsulation key corresponding to a routing path and are forwarded from the anchoring border router to the forwarding border router via a routing encapsulation tunnel. When a forwarding border router receives the redirected packets over the routing encapsulation tunnel, the forwarding border router removes the routing encapsulation key from the packets of the traffic flow and transmits the packets via a routing path corresponding to the routing encapsulation key.

6. 发明申请

US20150043348A1 Traffic Flow Redirection between Border Routers using Routing Encapsulation 有权
标题翻译：使用路由封装的边界路由器之间的流量重定向
公开(公告)号：US20150043348A1
公开(公告)日：2015-02-12
申请号：US13964244
申请日：2013-08-12
申请人： Cisco Technology, Inc.
发明人： Xiaorong Wang , Dapeng Liu , Hunan Cao , Hongbo Xia
IPC分类号： H04L12/741 , H04L12/28 , H04L12/803
CPC分类号： H04L45/745 , H04L12/4633 , H04L45/04 , H04L45/38 , H04L45/50 , H04L45/74 , H04L47/125 , H04L47/20
摘要： In response to receiving one or more packets from an interface, an anchoring border router classifies the traffic flow and either transmits the packets based upon the routing control table as usual, or determines that the packets of the traffic flow are to be forwarded to a forwarding border router. Upon determining that the packets are to be forwarded, the packets are encapsulated with a routing encapsulation key corresponding to a routing path and are forwarded from the anchoring border router to the forwarding border router via a routing encapsulation tunnel. When a forwarding border router receives the redirected packets over the routing encapsulation tunnel, the forwarding border router removes the routing encapsulation key from the packets of the traffic flow and transmits the packets via a routing path corresponding to the routing encapsulation key.
摘要翻译：响应于从接口接收到一个或多个分组，锚定边界路由器对业务流进行分类，并根据路由控制表照常发送分组，或者确定业务流的分组将被转发到转发边界路由器。在确定要转发数据包时，将使用对应于路由路由的路由封装密钥封装数据包，并通过路由封装隧道从锚定边界路由器转发到转发边界路由器。当转发边界路由器通过路由封装隧道接收到重定向报文时，转发边界路由器从业务流分组中删除路由封装密钥，并通过与路由封装密钥相对应的路由路径发送报文。

7. 发明申请

US20220263761A1 Systems and Methods for Adapting a WAN Egress Shaper Rate 有权
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.

8. 发明申请

US20210385166A1 Systems and Methods for Adapting a WAN Egress Shaper Rate 有权
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.

9. 发明授权

US11190434B2 Systems and methods for protective proactive adaptive active bandwidth measurement in SD-WAN networks 有权
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.

10. 发明申请

US20210288898A1 Systems and Methods for Protective Proactive Adaptive Active Bandwidth Measurement in SD-WAN Networks 有权
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.

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