A synchronization protocol for multi-premises hosting of digital content items. In one embodiments, for example, a method, comprising: detecting creation or modification of a content item; determining a content item namespace to which the content item belongs; obtaining an identifier of a block server to which the content item namespace is assigned; and uploading any content item blocks of the content item to the block server that are not already stored at the block server.

Methods, systems, and computer-readable media for providing reliable switching between different transport protocols (e.g., TCP and UDP) are presented herein. In some embodiments, a computing platform may stop transmission over a transport protocol. Subsequently, the computing platform may synchronize buffers between a client and a host. For example, the buffer may include acknowledgments for undelivered reliable packets between the client and the host. Next, the computing platform may resume transmission over a different transport protocol. In some embodiments, when establishing an initial connection between a client and a host, connections may be attempted in parallel over multiple transport protocols. After a connection over a first transport protocol is established, if a connection is later established over a second transport protocol, the connection may be transitioned to the second transport protocol. Also, ticketing semantics may be preserved in the switch between the different transport protocols.

Systems and methods of classifying data flows being communicated on a network by one or more network elements. One method includes creating a table including information of packet timestamps and pre-defined packet header fields, grouping packets into data flows based on information in the table, assigning flow identifiers to each data flow, determining a plurality of feature/characteristic sets having one or more features and/or one or more characteristics of the data flows, determining one or more classifiers to predict flow labels using the plurality of feature/characteristic sets, and generating a classification policy that includes the one or more classifiers to classify data flows on the network. The method can also include storing the classification policy in at least one non-transitory computer medium that is accessible by a network element that is classifying data flows on the network, and using the classification policy to classify data flows.

A method for data communication between a first node and a second node over a data path coupling the first node and the second node includes maintaining a transmission limit according to an increase function, wherein the increase function has a first portion and a second portion, the first portion being controllable separately from the second portion using a first parameter and the second portion being controllable separately from the first portion using a second parameter.

A microburst visibility system includes a switch device coupled to each sender device(s) and receiver device(s). The switch device receives flows transmitted by the sender device(s) to the receiver device(s). For each flow that include data packets that are stored in a first queue, the switch device provides a first queue identifier for the first queue in a flow record associated with that flow and modifies, for each data packet that is transmitted as part of that flow, flow information in data packet counter(s) that are associated with the first queue identifier in the flow record associated with that flow. When the switch device detects a microburst in the first queue, it captures the flow information in each data packet counter that is associated with the first queue identifier in each of the flow records included in the switch device, and provides it for analysis.

A packet transmission method, a proxy server, and a computer-readable storage medium are provided. The method includes: establishing, by a first proxy server, a multipath transmission control protocol (MPTCP) tunnel to a second proxy server, where the MPTCP tunnel includes a plurality of transmission control protocol (TCP) connections; encapsulating, by the first proxy server after receiving an internet protocol (IP) packet into which a user datagram protocol (UDP) packet is encapsulated, the IP packet with an MPTCP header; and sending, by the first proxy server by using a TCP connection of the plurality of TCP connections in the MPTCP tunnel, the IP packet encapsulated with the MPTCP header. Based on embodiments of the present invention, a technical problem of poor compatibility in the prior art can be resolved, and therefore a complete UDP packet can be restored.

Novel tools and techniques for machine learning based quality of experience optimization are provided. A system includes one or more network elements, an orchestrator, and a server. The server may further include a processor and non-transitory computer readable media comprising instructions executable by the processor to obtain telemetry information from a first protocol layer, obtain telemetry information from a second protocol layer, modify one or more attributes of the second protocol layer, observe a state of first protocol layer performance, assign a cost associated with changes to each of the one or more attributes of the second protocol layer, and optimize the first protocol layer performance based, at least in part, on the state of first protocol layer performance and the cost associated with the changes to one or more attributes of the second protocol layer. The orchestrator may be configured to modify the one or more attributes of the second protocol layer.

A gateway having an architecture authorizing bidirectional communication between applications located in different domains and presenting a high assurance level of protection. The gateway interconnects a first and second domain. The gateway comprises an internal protocol, first and second protocol adapters hosted within the first and second domains and configured to make a conversion between application data formatted according to an applicative protocol relative to the two domains and gateway data formatted according to the gateway internal protocol, and a security module hosted on a separate platform to communicate with the first and second protocol adapters via first and second data links according to the gateway internal protocol. The first and second protocol adapters and security module are each physically segregated and the security module comprises functional blocs configured to authorize secure bidirectional flow of gateway data along two different and separate unidirectional paths between the two protocol adapters.

This application provides a data transmission method. The method includes: calculating a first duration based on at least one to-be-sent data flow and a first time interval, where the first time interval is a preset value, and different data flows in the at least one to-be-sent data flow have different 5-tuples; and sending a first data flow, where the first data flow belongs to the at least one to-be-sent data flow; where a plurality of packets of the first data flow are sent in a first time period, packets of the first data flow are sent in a second time period following a second time interval, a duration of the first time period and a duration of the second time period are equal to the first duration, and the second time interval is greater than or equal to the first time interval.

Methods, systems, and computer-readable media for providing reliable switching between different transport protocols (e.g., TCP and UDP) are presented herein. In some embodiments, a computing platform may stop transmission over a transport protocol. Subsequently, the computing platform may synchronize buffers between a client and a host. For example, the buffer may include acknowledgments for undelivered reliable packets between the client and the host. Next, the computing platform may resume transmission over a different transport protocol. In some embodiments, when establishing an initial connection between a client and a host, connections may be attempted in parallel over multiple transport protocols. After a connection over a first transport protocol is established, if a connection is later established over a second transport protocol, the connection may be transitioned to the second transport protocol. Also, ticketing semantics may be preserved in the switch between the different transport protocols.