A server-based environment for reporting a status of a security, monitoring and automation controller is provided. Detecting cessation of an always-on persistent network connection between the SMA controller and the server is also provided. Reporting the cessation of the network connection to an end user and defined others is further provided. A further aspect provides for automatically reporting an alarm event to a central station, the end user, and others, in the event the cessation of the network connection occurs while the SMA controller is aimed and after a zone fault event, and not receiving a disarm notification prior to expiration of a preset entry delay.

A method for delivering data in a digital transmitter including generating service layer signaling (SLS) information comprising information for discovery and acquisition of at least one content component: generating service list table (SLT) information including bootstrap information for acquiring the SLS information; encapsulating the at least one content component, the SLS information and the SLT information via UDP/IP; and transmitting a broadcast signal comprising the at least one content component, the SLS information and the SLT information.

A device may receive network protocol data identifying a network protocol trace associated with network devices of a network, and may divide the network protocol trace into multiple segments. The device may identify a set of segments, in the multiple segments, that includes a first segment and second segments related to the first segment, and may process the multiple segments, in parallel, to determine first results data corresponding to the multiple segments. The device may process the second segments, in parallel, to determine second results data, and may combine the first results data and the second results data to generate final results data, wherein the final results data indicate utilization by the network devices of a network protocol associated with the network. The device may perform one or more actions based on the final results data.

A method at a first device for synchronising a first clock of the first device to a second clock of a second device, includes receiving a first message comprising an identifier from a third device; generating a first timestamp in dependence on the time at which the first message is received at the first device according to the first clock; receiving a second message from the second device comprising the identifier and a second timestamp, the second timestamp having been generated in dependence on the time at which the second device received the first message from the third device according to the second clock; and adjusting the first clock in dependence on a time difference between a time indicated by the first timestamp and a time indicated by the second timestamp.

A method at a first device for synchronising a first clock of the first device to a second clock of a second device, includes receiving a first message comprising an identifier from a third device; generating a first timestamp in dependence on the time at which the first message is received at the first device according to the first clock; receiving a second message from the second device comprising the identifier and a second timestamp, the second timestamp having been generated in dependence on the time at which the second device received the first message from the third device according to the second clock; and adjusting the first clock in dependence on a time difference between a time indicated by the first timestamp and a time indicated by the second timestamp.

A method for aerial vehicle component networking comprises, for a network-accessible avionics component onboard an aerial vehicle, instantiating a data stream object that specifies a network socket for communication between the network-accessible avionics component and a plurality of other network-accessible aerial vehicle components. A set of outgoing data is defined for transmission over the network socket to one or more onboard unicast aerial vehicle component subscribers of the plurality of other network-accessible aerial vehicle components and two or more onboard or offboard multicast aerial vehicle component subscribers of the plurality of other network-accessible aerial vehicle components. The outgoing data is published to the one or more onboard unicast aerial vehicle component subscribers over the network socket via unicast communication. The outgoing data is published to the two or more onboard or offboard multicast aerial vehicle component subscribers over the network socket via multicast communication.

An acquisition unit (15a) acquires packets passing through an active system path and packets passing through a standby system path. An aggregation unit (15b) aggregates information on the packets using the acquired packets. A determination unit (15c) compares the aggregated information on the packets between the active system path and the standby system path to determine whether there is a difference in state information indicating an operational state in an NF. In a case where it is determined that there is the difference, an instruction unit (15d) instructs an NF of the active system path and an NF of the standby system path facing the NF of the active system path to synchronize the state information.

A method for transmitting data from a first sub-system to a second sub-system includes the steps of: providing a dataset by the first sub-system, the dataset having a data structure identifier and a data value; sending the dataset to the second sub-system; receiving the dataset by the second sub-system; checking whether complete assignment information regarding the data structure assigned to the data structure identifier is present in the second sub-system; recovering any missing assignment information from a communication broker in the event that the second sub-system does not contain complete assignment information; and determining the data structure on the basis of the data structure identifier and the assignment information. A corresponding system, a corresponding first sub-system, a corresponding second sub-system and a communication broker are also proposed.

A method performed by a network node for transmission of a Packet Data Convergence Protocol, PDCP, Protocol Data Unit, PDU, to a wireless communications device is provided. The network node and the wireless communications device operate in a wireless communications network. The network node arranges (505) a number of PDCP PDUs in a numerical order based on their respective PDCP Sequence Number, SN. The number of PDCP PDUs is taken from a first set of PDCP PDUs comprising one or more first time transmitted PDCP PDUs and from a second set of PDCP PDUs comprising one or more retransmitted PDCP PDUs. The one or more first time transmitted PDCP PDUs and the one or more retransmitted PDCP PDUs are received from a controlling node. The network node transmits (506) the number of the PDCP PDUs in the numerical order to the wireless communications device 120.

Techniques are provided for generating multi-layer configuration templates for deployment across multiple infrastructure stack layers. One method comprises evaluating a semantic equivalence of attributes in an attribute registry to identify common attributes that appear in multiple stack layers; identifying architecture-specific attributes that are distinct from the common attributes; obtaining a semantic attribute group comprising related attributes; determining a semantic attribute group configuration for the related attributes by evaluating a configuration of the related attributes identified in a deployment configuration and/or a reference template configuration comprising the related attributes; and generating a configuration template for configuring multiple server devices, wherein the configuration template comprises (i) a first portion that configures the common attributes based on a configuration in the reference template configuration, and (ii) multiple second portions, wherein each second portion comprises an architecture-specific configuration of the architecture-specific attributes for a corresponding architecture-specific infrastructure stack type.