Apple Inc.

Kentik Technologies, Inc.

Netflix Inc.

Kentlik Technologies, Inc.

Daniel P Ellis

Ian Gerald Pye

Ian Applegate

Avraham Tzur Freedman

Vikram Bhaskara Yerrabommanahalli

Prashant H Vashi

Gregory Rourk Nelson

Sergey Sitnikov

Andrew Chen

Gahima S Mbonye

Christopher Brand

Alex Gutarin

Jarett M Morrow

Dhammika Pathirana

Gregoire Villain

Daniel V Chioreanu

Gino Joachim L Ledesma

A communications system may include user equipment (UE) devices, communications satellites, gateways, a satellite communications (satcom) network, and network performance monitoring devices. The monitoring devices may generate forward link signal information associated with forward link signals received from the satellites and may generate reverse link packets transmitted to the gateways via the satellites. The monitoring devices and the gateways may generate reverse link signal information associated with the reverse link packets. The satcom network may identify differences between the first and second reverse link signal information or between the forward link signal information and predicted forward link signal information for the monitoring devices. When the differences exceed a threshold value, the satcom network may generate and transmit error information used to diagnose, debug, and/or repair the potential errors in the constellation or gateways.

Network performance monitoring devices

A communications network may be used to convey Short Message Service (SMS) messages using the Internet Protocol (IP). User equipment may transmit an SMS-over-IP Session Initiation Protocol (SIP) message to wireless equipment over a high-bandwidth communications link. The wireless equipment may route the SMS-over-IP SIP message to the ePDG. When the high-bandwidth link is unavailable, the user equipment may transmit a compressed message to the proxy server over a low-bandwidth communications link. The proxy server may convert the compressed message into an SMS-over-IP SIP message that is transmitted to the ePDG. The proxy server may serve as a proxy for the first user equipment from the perspective of the ePDG. This may allow SMS message data to continue to be conveyed through the communications network even when the high-bandwidth communications link becomes unavailable.

Communications network

One embodiment of the present invention sets forth a technique for replicating a file within a network of servers. The technique includes determining one or more regional master servers included in a regional cluster of servers and causing each regional master server to retrieve a file from a fill source. The technique further includes, for at least one local cluster of servers included in the regional cluster of servers, determining one or more local master servers included in the at least one local cluster of servers, and causing each local master server to retrieve the file from one of the one or more regional master servers.

Tiered cache filling

A network monitoring engine uses the routing and interface data of a monitored network to enrich received flow records with exit information. The routing data of the same network device at which the flow record is received is used to determine a next hop based upon the destination IP address of the flow record. In addition, interface data of the other devices is used to determine an egress device and interface of the network used to transmit traffic to the identified next hop. The flow record is enriched with exit information indicating an interface of the network the data packets of the flow record are expected to exit the network. By enriching the flow records as they are received, the exit information reflects how traffic is routed through the network at that time, even if the routing or interface information of the network later changes.

Analyzing network traffic by enriching inbound network flows with exit data

The Kentik Data Engine (KDE) is an integrated real-time, big data software system able to analyze what exactly is happening on a network at the present moment, and what happened on the network over the a prior period of time. KDE collects live operational data from computer network infrastructure devices (routers and switches) and computer hosts, consisting of multiple data types, categories, and protocols, and correlates them to analyze network activity and health. KDE does this in a lossless manner, meaning that it retains all raw data rather than summarizing or aggregating prior to storage. In this way, KDE provides a combination of precise, actionable information in real-time as well as a complete forensic data store for detailed exploratory analysis.

Network flow data ingestion, storage, and analysis

Network monitoring, detection, and analysis system

Growing community of inventors

West Pittston, PA, United States of America

Daniel P Ellis