Cisco Technology, Inc.

Other

Jack Chi Cham

Ping Li

Danyang Raymond Zheng

John Albert Toebes

Fang Wu

Michael Pereira

Charles Shen

Gonzalo A Salgueiro

Joseph Michael Clarke

Wen-hsiung Chen

Tao Zhang

Yi Zheng

Dave M Singhal

Helder F Antunes

Gary Fujen Cheng

Nicholas Augustinos

Shawn Hsiao-Ping Yang

In one embodiment, a device in a network joins a fog-based malware defense cluster comprising one or more peer devices. The device and each peer device in the cluster are configured to execute a different set of local malware scanners. The device receives a file flagged as suspicious by a node in the network associated with the device. The device determines whether the local malware scanners of the device are able to scan the file. The device sends an assessment request to one or more of the peer devices in the malware defense cluster, in response to determining that the local malware scanners of the device are unable to scan the file.

Fog-based distributed malware defense

A system may receive a request from a client station to communicate with any available expert that matches at least one criterion. The system determines an identity of an expert station associated with an expert matching the at least one criterion. The system may then establish a session between the client station and the expert station, where the session includes a first connection and a second connection, the first connection is for transmission of audio/video, and the second connection is for transmission of telemetry data during the transmission of the audio/video. The telemetry data is measured at the client station.

Intelligent routing of coordinated audio, video, web services and measurement data streams

In a packet based multicast video streaming network, a method for minimizing delay in displaying video on a TV set in response to a viewer changing the channel is disclosed. For each live multicast video stream, one or more reference frames and corresponding compressed frames are temporarily stored in a memory in anticipation of the viewer switching to that particular program. When the viewer changes channels, the previously stored reference and compressed frames are immediately read from the memory and rendered for display on the TV. This eliminates the need to wait for the next available reference frame. In other words, this eliminates a temporary blank TV screen each time the channel is changed. Certain compressed frames are dropped and blank frames can be inserted in order to catch up to and synchronize with the live video broadcast. The particular frames to be dropped and the number of blank frames to be inserted is a function of the bandwidth limitation imposed by the last mile of the network.

Method and apparatus for immediate display of multicast IPTV over a bandwidth constrained network

A method of reducing the channel selection transition delay from a first media data channel to a second media data channel includes the operations of accumulating an independent media data frame and any related dependent media data frames based on a first decoder decoding at least a first portion of a second channel to form a second channel current media state, receiving a channel change request from a second decoder to change decoding to the second media channel, identifying an insertion position for a current independent frame relative to a current second channel frame set, and generating the current independent frame based on the second channel current media state corresponding to the insertion position. The dependent media data frames are used to modify the second channel current media state based on the independent media data frame.

Methods and systems to reduce channel selection transition delay in a digital network

Systems and methods for controlling the flow of information content in a network are described. The system includes a tracking module that remembers a sensitivity level of the information content and a location of that information content with respect to the system. A marking module is included that receives the sensitivity level from the tracking module upon a call for the information content. The marking module marks a sensitivity tag in a packet header associated with the information content according to the sensitivity level. Flow of the information content in the network is controlled according to the sensitivity tag.

System and method for controlling and tracking network content flow

Methods and systems for reducing channel change startup delays for multicast digital video streams are described. Packets of a multicast digital video transport stream having a plurality of normal Group of Pictures are received. Further, a channel change request is received and a speed-up Group of Pictures is inserted in the stream in response to the channel change request. In one embodiment, video stream specific information is also inserted in the stream. The packets are processed and transmitted.

Method for reducing channel change startup delays for multicast digital video streams

A method and apparatus for determining information associated with a particular multicast channel in a multicast network are disclosed. In accordance with the method, a request message requesting information associated with the particular multicast channel is generated and sent to the multicast network. Further, the request message is propagated downstream in a recursive manner via a multicast topology of the multicast network. A response to the request message is propagated upstream via the multicast topology to generate a response message including requested information associated with the particular multicast channel. The information may comprise number of users receiving the particular multicast channel.

Method and apparatus for determining information associated with a particular multicast channel in a multicast network

A power sourcing equipment-powered device (PSE-PD) combination unit requests inline power from a connected PSE or other PSE-PD combination unit by having the PD portion of the PD-PSE combination unit adapt its electrical characteristics, if necessary, to obtain the maximum power available. The PD-PSE combination device keeps track of available power less power consumed locally with a summation unit. A PSE manager unit grants PD power requests from downstream devices based upon the available power left (e.g., original PSE power less losses less local consumption).

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San Leandro, CA, United States of America

Jack Chi Cham