公开(公告)号：US20240348518A1

公开(公告)日：2024-10-17

申请号：US18356894

申请日：2023-07-21

Applicant: Cisco Technology, Inc.

Inventor： Sishi Shi ,  Yuefeng Jiang ,  Tony Shen ,  Siwei Wu ,  Dean Cheng ,  Daemon Yang

IPC: H04L43/045 ,  H04L41/14 ,  H04L43/20

CPC classification number: H04L43/045 ,  H04L41/145 ,  H04L43/20

Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media for simulating traffic flow in a virtualized network fabric. A method includes: creating in a visualization tool one or more virtual network hubs, one or more virtual branch locations, and one or more virtual internet servers; generating one or more micro-probes for clients/servers to be simulated, one or more of the clients/servers is located in each of the one or more virtual network hubs, virtual branch locations, and the virtual internet servers; generating one or more network impairments, which are associated with one or more of the one or more of network hubs, branch locations, and/or internet server locations; and launching one or more, client-role or server-role traffic invokers in each micro-probe to simulate traffic between the one or more of the virtual network hubs, the virtual branch locations, and/or the virtual internet server.

公开(公告)号：US20240275675A1

公开(公告)日：2024-08-15

申请号：US18630665

申请日：2024-04-09

Applicant: Cisco Technology, Inc.

Inventor： Yuefeng Jiang ,  Lijian Yang ,  Jiang Yu

IPC: H04L41/084 ,  H04L43/08

CPC classification number: H04L41/084 ,  H04L43/08

Abstract: Techniques for improving options templates are described. The techniques may be performed at least in part by a network edge device and may include receiving, from a network collector device, a request for an options template download, the request indicating whether a full options template or partial options template are requested. Based at least in part on whether a full options template or a partial options template are requested, the method may also include, transmitting a response to the network collector device including a segment of the options template, wherein each segment includes a flag indicating whether the segment is a last segment of at least one more segment will follow. Finally, the method may include receiving from the collector device and in response to transmitting a segment having the flag indicating the segment is a last segment, an acknowledgement that the full options template has been received.

公开(公告)号：US12015555B1

公开(公告)日：2024-06-18

申请号：US18344381

申请日：2023-06-29

Applicant: Cisco Technology, Inc.

Inventor： Xurui Huang ,  Bo Sun ,  Yuefeng Jiang

IPC: H04L45/745 ,  H04L45/28 ,  H04L45/76 ,  H04L49/00

CPC classification number: H04L45/745 ,  H04L45/28 ,  H04L45/76 ,  H04L49/70

Abstract: Disclosed herein are systems, methods, and computer-readable media for managing Layer 2 (L2) and Layer 3 (L3) policies. Traffic is routed from a first VM to a first CGW within a Service Node, where the Service Node can include a centralized policy for both L2 functions and L3 functions, and the first CGW can integrate both L2 gateways and L3 gateways. Based on a floating IP address of the packet, the traffic is routed within the Service Node, the traffic being routed by an access BD from an ingress BD-VIF to an egress BD-VIF. The traffic is then routed from a second CGW that integrates both L2 gateways and L3 gateways to the destination VM.

公开(公告)号：US09596099B2

公开(公告)日：2017-03-14

申请号：US14705071

申请日：2015-05-06

Applicant: Cisco Technology, Inc.

Inventor： Yibin Yang ,  Liqin Dong ,  Chia Tsai ,  Weng Hong Chan ,  Yuchen Zhou ,  Fang Yang ,  Jeffrey Cai ,  Yuefeng Jiang ,  Xiaopu Zhang

IPC: H04L12/28 ,  H04L12/46 ,  H04L12/713 ,  H04L29/12

CPC classification number: H04L12/4641 ,  H04L12/4633 ,  H04L45/586 ,  H04L61/103 ,  H04L61/6022 ,  H04L2012/4629

Abstract: Techniques provided herein use aggregate endpoints in a virtual overlay network. In general, aggregate endpoints operate as a single receiving entity for certain packets/frames sent between different physical proximities of the virtual overlay network.

Abstract translation: 本文提供的技术使用虚拟覆盖网络中的聚合端点。 通常，聚合端点作为在虚拟覆盖网络的不同物理邻域之间发送的某些分组/帧的单个接收实体操作。

公开(公告)号：US12301420B2

公开(公告)日：2025-05-13

申请号：US17982899

申请日：2022-11-08

Applicant: Cisco Technology, Inc.

Inventor： Yuefeng Jiang ,  Siwei Wu

IPC: H04L41/0894 ,  H04L12/18 ,  H04L69/22

Abstract: Techniques for extending unicast to multicast service reflection to SD-WAN overlay networks using a virtual interface (VIF) through a centralized policy are described herein. The techniques may include receiving, by a network controller of a SD-WAN, a centralized data policy for unicast to multicast service reflection, transmitting, by the network controller and to a network edge device, the centralized data policy, designating, by the network edge device, a primary replicator to act as a multicast source and replicate packets toward a last hop router (LHR), configuring, on the primary replicator, a VIF usable to translate unicast packets to multicast packets, and applying, by the primary replicator, the centralized data policy on received packets.

公开(公告)号：US20170078241A1

公开(公告)日：2017-03-16

申请号：US14850090

申请日：2015-09-10

Applicant: Cisco Technology, Inc.

Inventor： Xiaopu Zhang ,  Yuefeng Jiang ,  Fang Yang

IPC: H04L29/12 ,  H04L12/751 ,  H04L29/08

Abstract: A network device may receive a request seeking a location identifier for an endpoint identifier from a first router. The network device may determine that the endpoint identifier belongs to a dynamic endpoint identifier range associated with a plurality of routers. The request may be forwarded to the plurality of routers to discover a host having the endpoint identifier and a notification may be received from one of the plurality of routers reporting discovery of the host having the endpoint identifier. The network device may send an identifier of the one of the plurality of routers which reports discovery of the host to the first router as the location identifier for the endpoint identifier.

Abstract translation: 网络设备可以从第一路由器接收寻求端点标识符的位置标识符的请求。 网络设备可以确定端点标识符属于与多个路由器相关联的动态端点标识符范围。 可以将请求转发到多个路由器以发现具有端点标识符的主机，并且可以从报告具有端点标识符的主机的发现的多个路由器中的一个路由器接收通知。 网络设备可以将报告主机的发现的多个路由器之一的标识符发送给第一路由器作为端点标识符的位置标识符。

公开(公告)号：US20240340240A1

公开(公告)日：2024-10-10

申请号：US18631389

申请日：2024-04-10

Applicant: Cisco Technology, Inc.

Inventor： Xurui Huang ,  Bo Sun ,  Yuefeng Jiang

IPC: H04L45/745 ,  H04L45/28 ,  H04L45/76 ,  H04L49/00

CPC classification number: H04L45/745 ,  H04L45/28 ,  H04L45/76 ,  H04L49/70

Abstract: Disclosed herein are systems, methods, and computer-readable media for managing Layer 2 (L2) and Layer 3 (L3) policies. Traffic is routed from a first VM to a first CGW within a Service Node, where the Service Node can include a centralized policy for both L2 functions and L3 functions, and the first CGW can integrate both L2 gateways and L3 gateways. Based on a floating IP address of the packet, the traffic is routed within the Service Node, the traffic being routed by an access BD from an ingress BD-VIF to an egress BD-VIF. The traffic is then routed from a second CGW that integrates both L2 gateways and L3 gateways to the destination VM.

公开(公告)号：US11996981B2

公开(公告)日：2024-05-28

申请号：US17973193

申请日：2022-10-25

Applicant: Cisco Technology, Inc.

Inventor： Yuefeng Jiang ,  Lijian Yang ,  Jiang Yu

IPC: G06F15/173 ,  H04L41/084 ,  H04L43/08

CPC classification number: H04L41/084 ,  H04L43/08

Abstract: Techniques for improving options templates for network traffic monitoring and analysis, using pull mode by a network collector device, and sending an acknowledgement, by the network collector device that the download was successfully received are described. The techniques may include transmitting, by a network collector device and to a network edge device, a request to download a full options template, receiving, by the network collector device, responses from the network edge device, each response including a segment of the full options template and each segment including a last segment flag indicating whether the segment is a last segment, and in response to receiving a segment having the last segment flag set, transmitting, by the network collector device and to the network edge device, an acknowledgement that the full options template has been received.

公开(公告)号：US20240056357A1

公开(公告)日：2024-02-15

申请号：US17982899

申请日：2022-11-08

Applicant: Cisco Technology, Inc.

Inventor： Yuefeng Jiang ,  Siwei Wu

IPC: H04L41/0894 ,  H04L12/18 ,  H04L69/22

CPC classification number: H04L41/0894 ,  H04L12/18 ,  H04L69/22

Abstract: Techniques for extending unicast to multicast service reflection to SD-WAN overlay networks using a virtual interface (VIF) through a centralized policy are described herein. The techniques may include receiving, by a network controller of a SD-WAN, a centralized data policy for unicast to multicast service reflection, transmitting, by the network controller and to a network edge device, the centralized data policy, designating, by the network edge device, a primary replicator to act as a multicast source and replicate packets toward a last hop router (LHR), configuring, on the primary replicator, a VIF usable to translate unicast packets to multicast packets, and applying, by the primary replicator, the centralized data policy on received packets.

公开(公告)号：US10530735B2

公开(公告)日：2020-01-07

申请号：US14850090

申请日：2015-09-10

Applicant: Cisco Technology, Inc.

Inventor： Xiaopu Zhang ,  Yuefeng Jiang ,  Fang Yang

IPC: H04L29/12 ,  H04L29/08 ,  H04L12/751

Abstract: A network device may receive a request seeking a location identifier for an endpoint identifier from a first router. The network device may determine that the endpoint identifier belongs to a dynamic endpoint identifier range associated with a plurality of routers. The request may be forwarded to the plurality of routers to discover a host having the endpoint identifier and a notification may be received from one of the plurality of routers reporting discovery of the host having the endpoint identifier. The network device may send an identifier of the one of the plurality of routers which reports discovery of the host to the first router as the location identifier for the endpoint identifier.