Cisco Technology, Inc.

Douglas Chan

Brian Donald Hart

David Stuart Kloper

Charles Calvin Byers

David R Oran

Flavio Giovanni Bonomi

Bretton Lee Douglas

Ahmadreza Hedayat

Sandeep Shetty

Hui Liu

Mansoor Ahmed

Tak Ming Pang

Wei-Jen Hsu

Jay Iyer

Pascal Thubert

Jiang Zhu

Tao Zhang

Rong Pan

Xiaoqing Zhu

Bhaskar Bhupalam

Ashok Krishnaji Moghe

Tak Ming Francis Pang

Preethi Natarajan

Helder F Antunes

Vijaynarayanan Subramanian

Mohammad Janani

Hao Hu

Predrag Tosic

David Stiff

Suyog Deshpande

Mythili Mudlapur Suryanarayana Prabhu

In one embodiment, a source top-of-rack (ToR) switch may identify multiple destination ToR switches from a group of ToR switches to send data traffic to. The source ToR switch may be connected to the group of ToR switches via a base network. The system may determine whether each destination ToR switch is suitable for receiving data transmission via a point-to-multipoint wireless flyway. The two or more destination ToR switches that are determined to be suitable may be considered flyway candidate ToR switches. The system may establish the point-to-multipoint wireless flyway between the source ToR switch and the flyway candidate ToR switches. The system may then transmit the data traffic from the source ToR switch to each of the flyway candidate ToR switches via the point-to-multipoint wireless flyway.

De-congesting data centers with wireless point-to-multipoint flyways

Semantic data corresponding to video data may be received. Next, the received semantic data corresponding to the video data may be analyzed. Caching decisions may then be made based upon the analysis of the received semantic data corresponding to the video data.

Utilize extra web semantic for video caching

A user device may send a request for a data file to an access point. The user device may then receive, from the access point, data indicating that a segment of the data file has been previously cached in a local cache at the access point. In response to receiving the data, the user device may display an indicator configured to indicate that the segment of the data file is cached in the local cache.

Method and system to locally cache and inform users of partial video segments and data objects

In one embodiment, a method comprises: establishing a first broadband data link between a first mobile narrowbeam transceiver positioned on a vehicle and a first fixed narrowbeam transceiver mounted along a prescribed path of the vehicle; and switching from the first broadband data link, by the first mobile narrowbeam transceiver, to a second broadband data link with a second fixed narrowbeam transceiver mounted along the prescribed path after the first fixed narrowbeam transceiver, enabling the vehicle to maintain continuous broadband access to a wide area network via a prescribed sequence of the fixed narrowbeam transceivers along the prescribed path.

High-speed mobile broadband access by slewing between vehicular narrowbeam transceiver and fixed transceivers along prescribed path

The trustworthiness of vehicle-to-vehicle (V2V) messages received from one or more associated vehicles in the vicinity of a subject vehicle is determined autonomously by a false signal detection system of the subject vehicle. Physical evidence relating to the associated vehicles is collected, and a statistical model is used to perform an analysis of the collected data. A V2V message is received by the system from a first one of the associated vehicles and a trustworthiness level of the message is determined in accordance with a correlation between the received V2V message and the result of the analyzed physical data relating to the first associated vehicle. The correlation may be a comparison of data contained in the received V2V message relative to a result of a stochastic analysis of the physical data. The received V2V message may be any V2V safety message including Emergency Electronic Brake Light (EEBL) messages.

Detection of false vehicle-to-vehicle emergency brake light messages

An edge server communicates with a client in a local network. The client displays a remote desktop image representative of a virtual desk image generated by a virtual desktop server (VDS). The edge server receives from the VDS a desktop image to be displayed on the remote desktop. The desktop image includes an incomplete window in which graphic media, such as video, is to be displayed. The edge server determines communication link conditions in the local network and a corresponding transmit data rate at which to transmit data to the client device and a suitable encoding rate at which the graphic media is encoded. The edge server downloads the graphic media from the content server, merges the downloaded graphic media into the incomplete area to produce a completed desktop image, and transmits the completed desktop image at the determined transmit data rate for display on the remote desktop.

Rate-adapted delivery of virtual desktop image elements by an edge server in a computer network environment

In one embodiment, a method comprises receiving, by an apparatus, a Media Access Control (MAC) frame destined for a destination device; dividing, by the apparatus, the MAC frame into frame fragments; coding the frame fragments into encoded cells; and causing, by the apparatus, transmission of selected subsets of the encoded cells, as distinct flows of the encoded cells, by respective optical physical layer transmitter devices reachable by the destination device.

Distributed media access controller transmitting network coded cells via optical transmitters

A method is provided in one example and can include receiving a source data stream, generating a base layer sub-stream from the source data stream, and generating an enhancement layer sub-stream from the source data stream. The method further includes communicating the base layer sub-stream to a client device using a first communication protocol, and communicating the enhancement layer sub-stream to the client device using a second communication protocol. In a particular example, the one-to-many communication protocol is a multicast communication protocol and the second communication protocol is a unicast communication protocol. In another example, the base layer sub-stream is sent to the client device via a first network connection and the enhancement layer sub-stream is sent to the client device via a second network connection.

System and method for video delivery over heterogeneous networks with scalable video coding for multiple subscriber tiers

In one embodiment, a method comprises determining access network conditions by a network device in an access network, the access network providing communications between a client device and a destination reachable via a data network; selecting, by the network device based on the access network conditions, one of a plurality of coding methods for network traffic between the client device and the destination, including selecting coding parameters for the one coding method; and causing, by the network device, coding to be executed on the network traffic, on behalf of the client device, according to the one coding method and the selected coding parameters.

Dynamic coding for network traffic by fog computing node

Wider bandwidth transmissions are dynamically enabled in a wireless networking environment. During a transmit opportunity time interval for a wireless network device, a transmission is sent in a primary channel in a frequency band in which the primary channel and a secondary channel may be used simultaneously to send a wider bandwidth transmission. Activity is monitored in the secondary channel. A determination is made as to whether the secondary channel is free based on the monitoring. When it is determined that the secondary channel is free, the wider bandwidth transmission is sent in the primary and secondary channels.

Dynamic enabling of wider channel transmissions with radio monitoring

Techniques are provided for delivering data to a wireless client device in a wireless network via a plurality of access points as the wireless client device roams from one access point to another. A wireless client device receives data via a first wireless access point in the wireless network. An impending roam of a wireless client device is detected. A set of one or more candidate wireless access points other than the first wireless access point is determined to which the wireless client device may potentially roam. The one or more wireless access points in the set are assigned to a multicast group, and the traffic is sent to the multicast group. A message containing a synchronized context enables a new wireless access point to send data to the wireless client device from a point where the first wireless access point stopped sending data to the wireless client device.

Predictive caching and tunneling for time-sensitive data delivery to roaming client devices

Techniques are provided for selecting channels for use by access points operating in a wireless local area network. Metrics are computed for at least one set of radio frequency (RF) channels, wherein the set of RF channels comprises at least two RF channels in a frequency band that are available for use by a wireless network for a wider bandwidth mode that combines bandwidth of two or more RF channels. Alignment of individual primary and secondary RF channels is determined in the set of RF channels for operation of at least first and second wireless networks. A bias is applied to the metrics for each RF channel that is a member of the set of RF channels for the primary channel depending on alignment of the primary and secondary channels of the respective first and second wireless networks to produce adjusted metrics, based on which RF channels are assigned.

Dynamic channel assignment for WLAN deployments with IEEE 802.11ac access points

Devices, methods and instructions encoded on computer readable media are provided herein for estimation of the available bandwidth in a frequency channel shared by a first access point and at least one neighboring access point. In one example, an impact value that represents the impact of traffic associated with the neighboring access point on the first access point is calculated. Based on the impact value, a first utilization metric associated with the first access point is generated. The first utilization metric represents the bandwidth available on the frequency channel in the presence of the traffic associated with the neighboring access point.

Co-channel utilization estimation

Dynamic bandwidth selection techniques are provided for a plurality of wireless access point devices that operate in a wireless local area network. Each access point device is capable of serving wireless client devices with a bandwidth from a set of possible bandwidths associated with one or multiple contiguous or non-contiguous radio frequency channels. A bias is generated based on determined type of traffic or client composition for each access point device, the bias favoring a channel assignment that results in a particular bandwidth in the set of bandwidths. The bias is applied to metrics representing severity and degree of interference for each channel to generate adjusted metrics. A bandwidth from the set of possible bandwidths is selected for each access point device based on the adjusted metrics.

Growing community of inventors

San Jose, CA, United States of America

Douglas Chan