公开(公告)号：US20200304416A1

公开(公告)日：2020-09-24

申请号：US16896549

申请日：2020-06-09

Applicant: Cisco Technology, Inc.

Inventor： Sergio Mena ,  Xiaoqing Zhu ,  Jiantao Fu

IPC: H04L12/891 ,  H04L12/869 ,  H04L12/26

Abstract: A controller of a network, including routers to forward flows of packets originated at senders to receivers along distinct network paths each including multiple links, such that the flows merge at a common link that imposes a traffic bottleneck on the flows, receives from one or more of the routers router reports that each indicate an aggregate packet loss that represents an aggregate of packet losses experienced by each of the flows at the common link. The controller sends to the senders aggregate loss reports each including the aggregate packet loss so that the senders have common packet loss information for the common link on which to base decisions as to whether to switch from delay-based to loss-based congestion control modes when implementing dual-mode congestion control of the flows. In lieu of the controller, another example employs in-band router messages populated with packet losses by the routers the messages traverse.

公开(公告)号：US11509595B2

公开(公告)日：2022-11-22

申请号：US16896549

申请日：2020-06-09

Applicant: Cisco Technology, Inc.

Inventor： Sergio Mena ,  Xiaoqing Zhu ,  Jiantao Fu

IPC: H04L47/41 ,  H04L47/50 ,  H04L43/0829

Abstract: A controller of a network, including routers to forward flows of packets originated at senders to receivers along distinct network paths each including multiple links, such that the flows merge at a common link that imposes a traffic bottleneck on the flows, receives from one or more of the routers router reports that each indicate an aggregate packet loss that represents an aggregate of packet losses experienced by each of the flows at the common link. The controller sends to the senders aggregate loss reports each including the aggregate packet loss so that the senders have common packet loss information for the common link on which to base decisions as to whether to switch from delay-based to loss-based congestion control modes when implementing dual-mode congestion control of the flows. In lieu of the controller, another example employs in-band router messages populated with packet losses by the routers the messages traverse.

公开(公告)号：US20200112517A1

公开(公告)日：2020-04-09

申请号：US16155304

申请日：2018-10-09

Applicant: Cisco Technology, Inc.

Inventor： Sergio Mena ,  Xiaoqing Zhu ,  Jiantao Fu

IPC: H04L12/891 ,  H04L12/26 ,  H04L12/869

Abstract: A controller of a network, including routers to forward flows of packets originated at senders to receivers along distinct network paths each including multiple links, such that the flows merge at a common link that imposes a traffic bottleneck on the flows, receives from one or more of the routers router reports that each indicate an aggregate packet loss that represents an aggregate of packet losses experienced by each of the flows at the common link. The controller sends to the senders aggregate loss reports each including the aggregate packet loss so that the senders have common packet loss information for the common link on which to base decisions as to whether to switch from delay-based to loss-based congestion control modes when implementing dual-mode congestion control of the flows. In lieu of the controller, another example employs in-band router messages populated with packet losses by the routers the messages traverse.

公开(公告)号：US12069138B2

公开(公告)日：2024-08-20

申请号：US18326577

申请日：2023-05-31

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Sergio Mena ,  Lorenzo Granai ,  Jerome Henry

IPC: H04L67/143 ,  G06T19/00 ,  G06V20/20 ,  H04L67/141

CPC classification number: H04L67/143 ,  G06T19/006 ,  G06V20/20 ,  H04L67/141 ,  G06T2210/36 ,  G06T2210/61 ,  G06T2219/024

Abstract: Preserving transmission properties of real-time scenes in an environment when an increasing number of users join a session may be provided. A plurality of metrics associated with transmission of scenes having a Coarse Grain (CG) layer and a Fine Grain (FG) layer may be determined. Then a current client, based on a first one of a plurality of metrics, may be revoked. One of the following may then be performed: blocking a new client based on a second one of a plurality of metrics; and allowing the new client based on the second one of a plurality of metrics.

公开(公告)号：US11677840B2

公开(公告)日：2023-06-13

申请号：US17146046

申请日：2021-01-11

Applicant: Cisco Technology, Inc.

Inventor： Malcolm Muir Smith ,  Sergio Mena ,  Lorenzo Granai ,  Jerome Henry

IPC: H04L67/143 ,  G06V20/20 ,  H04L67/141 ,  G06T19/00

CPC classification number: H04L67/143 ,  G06T19/006 ,  G06V20/20 ,  H04L67/141 ,  G06T2210/36 ,  G06T2210/61 ,  G06T2219/024

Abstract: Preserving transmission properties of real-time scenes in an environment when an increasing number of users join a session may be provided. A plurality of metrics associated with transmission of scenes having a Coarse Grain (CG) layer and a Fine Grain (FG) layer may be determined. Then a current client, based on a first one of a plurality of metrics, may be revoked. One of the following may then be performed: blocking a new client based on a second one of a plurality of metrics; and allowing the new client based on the second one of a plurality of metrics.

公开(公告)号：US11895170B2

公开(公告)日：2024-02-06

申请号：US17249673

申请日：2021-03-09

Applicant: Cisco Technology, Inc.

Inventor： Sergio Mena ,  Lorenzo Granai ,  Malcolm M. Smith ,  Jerome Henry

IPC: H04L65/65 ,  H04L65/80 ,  G06T19/00 ,  H04L67/131 ,  H04L67/62 ,  H04L65/403 ,  H04L65/1033

CPC classification number: H04L65/65 ,  G06T19/003 ,  H04L65/1033 ,  H04L65/403 ,  H04L65/80 ,  H04L67/131 ,  H04L67/62

Abstract: Embodiments for virtual reality (VR) and augmented reality (AR) scenes updates at VR/AR devices in a network are described. Network traffic for the scene updates is divided into traffic layers such as coarse grain (CG) layer traffic and a fine grain (FG) layer traffic for a give VR/AR scene update. The CG layer traffic is scheduled first in resource units (RUs) of a plurality a transmission opportunity (TXOP) for a VR device and FG layer traffic is scheduled in remaining RUs during the TXOP to provide synchronous viewing experiences to users of the VR/AR devices.

公开(公告)号：US10721174B2

公开(公告)日：2020-07-21

申请号：US16155304

申请日：2018-10-09

Applicant: Cisco Technology, Inc.

Inventor： Sergio Mena ,  Xiaoqing Zhu ,  Jiantao Fu

IPC: H04L12/891 ,  H04L12/869 ,  H04L12/26

Abstract: A controller of a network, including routers to forward flows of packets originated at senders to receivers along distinct network paths each including multiple links, such that the flows merge at a common link that imposes a traffic bottleneck on the flows, receives from one or more of the routers router reports that each indicate an aggregate packet loss that represents an aggregate of packet losses experienced by each of the flows at the common link. The controller sends to the senders aggregate loss reports each including the aggregate packet loss so that the senders have common packet loss information for the common link on which to base decisions as to whether to switch from delay-based to loss-based congestion control modes when implementing dual-mode congestion control of the flows. In lieu of the controller, another example employs in-band router messages populated with packet losses by the routers the messages traverse.