公开(公告)号：US20220400063A1

公开(公告)日：2022-12-15

申请号：US17347728

申请日：2021-06-15

Applicant: Cisco Technology, Inc.

Inventor： Giulio Grassi ,  Giovanna Carofiglio ,  Michele Papalini ,  Enrico Loparco ,  Jacques Olivier Samain

IPC: H04L12/24 ,  H04L12/801 ,  H04L12/851 ,  H04L12/26 ,  G06N5/04

Abstract: In one example, a location of a potential bottleneck of network traffic in a network is identified. Based on the location of the potential bottleneck, a first QoE inference model is selected from a plurality of respective QoE inference models. The respective QoE inference models are each trained to infer a respective QoE of the network traffic based on one or more respective network traffic metrics generated by monitoring the network traffic at a respective location in the network. One or more first network traffic metrics of the one or more respective network traffic metrics are generated by monitoring the network traffic at a first respective location. The one or more first network traffic metrics are provided to the first QoE inference model to infer a first respective QoE.

公开(公告)号：US12273406B2

公开(公告)日：2025-04-08

申请号：US17871556

申请日：2022-07-22

Applicant: Cisco Technology, Inc.

Inventor： Giovanna Carofiglio ,  Giulio Grassi ,  Enrico Loparco ,  Michele Papalini ,  Jacques Samain

IPC: H04L65/80 ,  H04L65/65 ,  H04L65/75 ,  H04N21/442

Abstract: A method includes, at a media bridge configured to distribute a plurality of media streams among a plurality of client devices connected to the media bridge over a network during a real-time communication (RTC) instance, receiving a plurality of quality of experience (QoE) preferences from the plurality of client devices via the media bridge, the plurality of QoE preferences being transmitted as a real-time transport protocol (RTP) control protocol (RTCP) extension header of a transmitted data packet. The method also includes receiving a plurality of QoE metrics at the media bridge, and in response to a determination that a degradation in network conditions of the network has occurred, downgrading at least one of the plurality of media streams based on the plurality of QoE preferences.

公开(公告)号：US20250047739A1

公开(公告)日：2025-02-06

申请号：US18364162

申请日：2023-08-02

Applicant: Cisco Technology, Inc.

Inventor： Giovanna Carofiglio ,  Jordan Augé ,  Michele Papalini ,  Giulio Grassi ,  Mauro Sardara

IPC: H04L67/101 ,  H04L43/0852 ,  H04L67/1008

Abstract: Systems and methods for associating a client computing device with an edge node. The method includes providing, by a cloud server, a resource to the client computing device. Filtering, by the cloud server, one or more edge nodes to identify a subset of edge nodes that meet a predetermined criteria and communicating the subset of edge nodes to the client computing device. The client probes the subset of edge nodes, and based on at least the probing results, the cloud server then selects one of the edge nodes from the subset to provide the resource to the client computing device.

公开(公告)号：US20240283564A1

公开(公告)日：2024-08-22

申请号：US18170960

申请日：2023-02-17

Applicant: Cisco Technology, Inc.

Inventor： Giovanna Carofiglio ,  Michele Papalini ,  Giulio Grassi

IPC: H04L1/00

CPC classification number: H04L1/004

Abstract: A system and method for a coordinated edge-assisted reliability mechanism for real-time media services. In one embodiment, a method includes forwarding, by an edge relay device, data packets between a media server and a client device; measuring packet loss and latency associated with communications between the edge relay device, the media server, and the client device; determining an error correction procedure based at least in part on the measured latency; and implementing the error correction procedure at the edge relay device.

公开(公告)号：US20230291679A1

公开(公告)日：2023-09-14

申请号：US17690130

申请日：2022-03-09

Applicant: Cisco Technology, Inc.

Inventor： Giulio Grassi ,  Jacques Olivier SAMAIN ,  Michele PAPALINI ,  Giovanna CAROFIGLIO

IPC: H04L45/125 ,  H04L45/12 ,  H04L45/24 ,  H04L45/42 ,  H04L47/122

CPC classification number: H04L45/125 ,  H04L45/123 ,  H04L45/24 ,  H04L45/42 ,  H04L47/122

Abstract: In one embodiment, a device executing an application estimates capacity metrics for paths between the device and a data source from which the device pulls data associated with the application. The device estimates a number of data requests by the device that must be pending with the data source to maintain synchronization with the application. The device determines an amount of capacity of the paths to be used by a packet recovery mechanism without causing congestion, based on the capacity metrics for the paths between the device and the data source and the number of data requests by the device that must be pending with the data source to maintain synchronization. The device requests, from the data source, use of the packet recovery mechanism for the data associated with the application, according to the amount of capacity of the paths to be used by the determined packet recovery mechanism.

公开(公告)号：US20220360589A1

公开(公告)日：2022-11-10

申请号：US17314950

申请日：2021-05-07

Applicant: Cisco Technology, Inc.

Inventor： Luca Muscariello ,  Giulio Grassi ,  Jacques Samain ,  Olivier Roques

IPC: H04L29/06 ,  H04L9/08

Abstract: This disclosure describes techniques for controlling group access to a collaboration technology. The techniques include generating a shared encryption key among authorized producers of content associated with a collaboration technology. The techniques include receiving, by the authorized producers and from authenticated consumers, requests to access the content. The requests may be received in a partitioned manner, such that individual producers are serving a particular subset of the authenticated consumers. In response to receiving the requests, the techniques include sending the shared encryption key from the individual producers to the corresponding subset of authenticated consumers. The techniques include using the shared encryption key to encrypt content by the authorized producers, which may then be decrypted by the authenticated consumers using the shared encryption key, achieving end-to-end encryption of event content.

公开(公告)号：US11431781B1

公开(公告)日：2022-08-30

申请号：US17316328

申请日：2021-05-10

Applicant: Cisco Technology, Inc.

Inventor： Giovanna Carofiglio ,  Giulio Grassi ,  Enrico Loparco ,  Michele Papalini ,  Jacques Samain

IPC: H04L65/80 ,  H04N21/442 ,  H04L65/65 ,  H04L65/75

Abstract: A method includes, at a media bridge configured to distribute a plurality of media streams among a plurality of client devices connected to the media bridge over a network during a real-time communication (RTC) instance, receiving a plurality of quality of experience (QoE) preferences from the plurality of client devices via the media bridge, the plurality of QoE preferences being transmitted as a real-time transport protocol (RTP) control protocol (RTCP) extension header of a transmitted data packet. The method also includes receiving a plurality of QoE metrics at the media bridge, and in response to a determination that a degradation in network conditions of the network has occurred, downgrading at least one of the plurality of media streams based on the plurality of QoE preferences.