公开(公告)号：US20230283636A1

公开(公告)日：2023-09-07

申请号：US17686612

申请日：2022-03-04

Applicant: Cisco Technology, Inc.

Inventor： Olivier Roques ,  Luca Muscariello ,  Giovanna Carofiglio

IPC: H04L9/40 ,  H04L51/06 ,  H04L51/046

CPC classification number: H04L63/166 ,  H04L63/0442 ,  H04L51/06 ,  H04L51/046

Abstract: In one embodiment, a delivery service provided by a device receives one or more Messaging Layer Security commit messages comprising a plurality of public and private keys for a Messaging Layer Security group. The delivery service identifies subsets of the plurality of public and private keys to be sent to different destination subgroups in the Messaging Layer Security group. The delivery service maps each of the subsets to Hybrid Information-Centric Networking names. The delivery service sends, based on the Hybrid Information-Centric Networking names, the subsets of the plurality of public and private keys to destination subgroups in the Messaging Layer Security group.

公开(公告)号：US11050724B2

公开(公告)日：2021-06-29

申请号：US15928265

申请日：2018-03-22

Applicant: Cisco Technology, Inc.

Inventor： Fabio De Gaspari ,  Alberto Compagno ,  Luca Muscariello ,  Giovanna Carofiglio

IPC: H04L29/06 ,  H04L9/08

Abstract: A producer communicates over a network with a user application in an infrastructure-as-a-service (IaaS) and an IaaS node. The producer encrypts content with first encryption using a first key and second encryption using a second key, to produce twice encrypted content. The producer encrypts the second key with attribute-based encryption and symmetric encryption using an IaaS key, to produce a twice encrypted second key. The producer provides to the user application the twice encrypted content, the twice encrypted second key, and key information configured to remove the first encryption from the twice encrypted content. The producer provides to the IaaS node the IaaS key to enable the IaaS node to remove the symmetric encryption from the twice encrypted second key, such that the user application and the IaaS node are constrained to exchange with each other key-related information and intermediate decryption results in order to recover the content.

公开(公告)号：US11038899B1

公开(公告)日：2021-06-15

申请号：US17014097

申请日：2020-09-08

Applicant: Cisco Technology, Inc.

Inventor： Giovanna Carofiglio ,  Michele Papalini ,  Jacques Olivier Samain ,  Xuan Zeng ,  Luca Muscariello ,  Carl Nathan Buckles

IPC: H04N7/15 ,  H04L29/06

Abstract: Presented herein are methods for dynamic management of names and of named-based requests for media flows in an Information-Centric Network (ICN)-based real-time communication system. The use of different naming schemes on contribution segments and on distribution segments in such architectures results in an effective low latency and scalable communication model based on the notion of active speakers regardless of the underlying mapping between active speakers and participants controlled by the media bridge. Operations are performed both at client side and at media bridge side to dynamically manage binding of names to speakers, while minimizing overhead and complexity of operations involved by a change of active speaker/quality/layout.

公开(公告)号：US10924540B2

公开(公告)日：2021-02-16

申请号：US15943775

申请日：2018-04-03

Applicant: Cisco Technology, Inc.

Inventor： Alberto Compagno ,  Luca Muscariello ,  Giovanna Carofiglio ,  Marcel Paul Enguehard

IPC: H04L29/08 ,  G06F16/901 ,  G06F16/22 ,  H04W72/04 ,  H04W84/18

Abstract: In one embodiment, a device in a network receives an interest request for one or more pieces of content data available in the network. The interest request specifies the one or more pieces of content data via one or more bits sets in a content request bitmap of the interest request, each bit of the content request bitmap being associated with a different piece of content data. The device compares the content request bitmap to a content availability bitmap in a forwarding information base (FIB) of the device that is associated with a particular interface of the device and each bit of the content availability bitmap indicates whether a particular piece of content data is available via the particular interface. The device forwards the interest request via the particular interface, based on the comparison between the content request bitmap and the content availability bitmap in the FIB of the device.

公开(公告)号：US10805825B2

公开(公告)日：2020-10-13

申请号：US15658638

申请日：2017-07-25

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Luca Muscariello ,  Giovanna Carofiglio

IPC: H04W28/02 ,  H04W72/12 ,  H04N21/238 ,  H04L29/08 ,  H04W84/12

Abstract: A method is provided in one example embodiment and may include determining each station of a plurality of stations connected to a WiFi access point that are to receive downlink video transmissions from the WiFi access point, wherein the WiFi access point is connected to an Information-Centric Networking-based (ICN-based) network; associating each station of the plurality of stations to each of a corresponding ICN face of a plurality of ICN faces maintained by the WiFi access point; and managing a downlink transmission buffer for each station of the plurality of stations based, at least in part, a modulation and coding scheme (MCS) associated with downlink video transmissions for each station of the plurality of stations, wherein each downlink transmission buffer is associated with the corresponding ICN face associated with each station.

公开(公告)号：US11665261B1

公开(公告)日：2023-05-30

申请号：US17696991

申请日：2022-03-17

Applicant: Cisco Technology, Inc.

Inventor： Giovanna Carofiglio ,  Jordan François Jean Augé ,  Enrico Loparco ,  Luca Muscariello

IPC: H04L67/75 ,  H04L41/5009 ,  H04L43/0823 ,  H04L43/0817

CPC classification number: H04L67/75 ,  H04L41/5009 ,  H04L43/0817 ,  H04L43/0823

Abstract: In one embodiment, a device determines a first difference between current path measurements and prior path measurements. The device determines a second difference between current predictions and prior predictions made by a prediction model based on path measurements. The device computes, based on the first difference and the second difference, an interest metric for the current path measurements. The device sends at least a portion of the current path measurements for input to the prediction model, when the interest metric exceeds a predefined threshold.

公开(公告)号：US11483238B2

公开(公告)日：2022-10-25

申请号：US16601352

申请日：2019-10-14

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  Luca Muscariello

IPC: H04L45/42 ,  H04L45/64 ,  H04L45/74 ,  H04L69/22

Abstract: This disclosure describes techniques for implementing centralized path computation for routing in hybrid information-centric networking protocols implemented as a virtual network overlay. A method includes receiving an interest packet header from a forwarding router node of a network overlay. The method further includes determining an interest path of the interest packet and one or more destination router nodes of the network overlay. The method further includes computing one or more paths over the network overlay. The method further includes determining an addressing method for the one or more computed paths over the network overlay. The method further includes performing at least one of encoding each computed path in a data packet header, and encoding each computed path as state entries of each router node of the network overlay on each respective path. The method further includes returning the computed path information to the forwarding router node.

公开(公告)号：US11438431B2

公开(公告)日：2022-09-06

申请号：US16996673

申请日：2020-08-18

Applicant: Cisco Technology, Inc.

Inventor： Michele Papalini ,  Jordan Augé ,  Giovanna Carofiglio ,  Luca Muscariello ,  Mauro Sardara ,  Xuan Zeng

IPC: H04L67/565 ,  H04L67/01 ,  H04L69/16 ,  H04L67/2876

Abstract: Techniques for providing Hybrid information-centric networking (hICN) via a proxy application is described. A hICN proxy application provides hICN to legacy applications by diverting network traffic of a plurality of network traffic types to the hICN proxy application and storing network traffic information for the network traffic in a connection table. The hICN proxy application also translates the diverted network traffic to a hICN network traffic protocol and selects a forwarding strategy for the translated network traffic in order to send the hICN traffic over various non-hICN network protocol types. The hICN proxy application also transmits the translated traffic to a server proxy application using the selected forwarding strategy.

公开(公告)号：US11258840B2

公开(公告)日：2022-02-22

申请号：US16405144

申请日：2019-05-07

Applicant: Cisco Technology, Inc.

Inventor： Michele Papalini ,  Giovanna Carofiglio ,  Luca Muscariello ,  Alberto Compagno

IPC: H04L29/06 ,  H04L29/08 ,  G06F16/23 ,  H04L1/00 ,  G06F16/958 ,  H04L65/65 ,  H04L65/403 ,  H04L65/80 ,  H04L69/166 ,  H04L67/60 ,  H04L69/16 ,  H04L65/60 ,  H04L65/612

Abstract: A network device is configured to distribute audio streams and video streams among participant devices connected to the network device over a communication network. The network device collects respective audio streams from the participant devices, and ranks the participant devices based on the respective audio streams collected from the participant devices. Based on the ranking, the network device elects top-N participant devices among the participant devices as being associated with respective users who are active speakers, where N is one or more, and retrieves respective video streams only from the top-N participant devices. The network device receives from the participant devices respective requests for video streams from the top-N participant devices, and sends to the participant devices the video streams retrieved only from the top-N participant devices.

公开(公告)号：US11223697B2

公开(公告)日：2022-01-11

申请号：US16384110

申请日：2019-04-15

Applicant: Cisco Technology, Inc.

Inventor： Giovanna Carofiglio ,  Luca Muscariello ,  Mauro Sardara

IPC: H04L29/08 ,  H04L29/06

Abstract: Content can be delivered by a producer service to one or more consumer services over an information centric network (“ICN”) by storing application frames in a forwarding cache of an ICN node. The consumer services may retrieve applications frames from the ICN node rather than from the producer service directly.