A method for reducing a number of copies required to send a data sample with a Data Distribution Service (DDS) type in a system using an Object Management Group (OMG) Data Distribution Service (DDS) and a Real-Time Publish Subscribe (RTPS) protocol is provided. Key to the invention is the definition/creation of a memory representation of the data samples for the DDS type that is equal to the network representation of the data samples for the DDS type. Sending of data samples to the DataReader is accomplished without making a serialization copy of the data samples, and for the receiving the data samples from the DataWriter is accomplished without making a deserialization copy of the data samples. Further, a method is provided for accessing to a network representation of data samples with a DDS type in a system using an OMG DDS and a RTPS protocol.

A first network device for use in a blockchain network is described. The first network device comprises

means for, while carrying out a first iteration of a consensus protocol involving a second node device (103), in response to a trigger event (3040), obtaining a time interval function of a time interval start trigger event (3040) and of a time interval end trigger event (3080), each event being linked to a message of the consensus protocol and wherein at least the end trigger event (3080) comprises receiving a message from the second node device; means for transmitting (3083) first data (Delay_102) representative of said time interval to said second node device; means for, during a subsequent iteration of said consensus protocol involving said second node device, receiving a message (3140) from said second node device, said message containing second data (DelayTX_102) representative of said time interval from said second node device; means for authenticating said second node device as a function of said second data. A second network device, methods at the first and second network devices and a computer readable medium with code for carrying out the methods are also described.

This disclosure describes techniques for performing communications between devices using various aspects of Ethernet standards. As further described herein, a protocol is disclosed that may be used for communications between devices, where the communications take place over a physical connection complying with Ethernet standards. Such a protocol may enable reliable and in-order delivery of frames between devices, while following Ethernet physical layer rules, Ethernet symbol encoding, Ethernet lane alignment, and/or Ethernet frame formats.

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 PC includes: a frame designing section configured to design a communications frame of a communications protocol; and a protocol driver generating section configured to generate a protocol driver in accordance with the communications frame having been designed. The frame designing section includes: a providing section configured to provide a graphics object that graphically represents an element of at least one segment of the communications frame and that contains information on the size of the element, in a manner that enables the graphics object to be selected and to be disposed in the at least one segment; and a setting section configured to set the property of the element represented by the graphics object having been disposed.

Disclosed are systems, methods, and devices for managing a plurality of remote devices of disparate types. There is maintained an electronic device definition repository comprising: a plurality of semantic model definitions for corresponding devices of the plurality of remote devices. An action request for an action to be performed by one or more selected devices of the plurality of remote devices is received. For each one or more selected devices, the action request is processed including: converting a generic device action and a generic device property to a device-specific action and a device-specific property using the semantic model definition for the selected device; establishing one or more messages for communicating the device-specific action request to a given selected device using the data protocol definition for the selected device; translating the one or more messages of the sequence of messages to an application protocol suitable for communication with the selected device.

A system comprising a processor and a computer readable memory coupled to the processor, the computer readable memory configured with a page processable by page processing code. The page can be configured to generate a set of random connection data usable by a local server program instance to verify that a connection request is from the page, launch the local server program instance, provide the set of random connection data to the local server program instance, create a client socket instance, send a connection request to the local server program instance to establish a connection between the client socket instance and a server socket instance of the server program instance and based on an acceptance of the connection request by the server program instance, complete the connection. The connection may be usable for bi-directional communication between the page and local server program instance.

A method supporting distributed resilient network interconnect (DRNI) in a link aggregation group at a network device is disclosed. The method starts with encapsulating a distributed relay control protocol data unit (DRCPDU) in a frame, wherein the DRCPDU includes a protocol data unit (PDU) structure. The PDU structure includes a type field indicating that the DRCPDU is for DRCP, a version field indicating a version number of the DRCP, and a set of type/length/values (TLVs) including: a terminator TLV indicating an end of the PDU structure, a portal information TLV indicating characteristics of the first portal, a portal configuration information TLV indicating configuration information of the first portal, a DRCP state TLV indicating variables associated with an intra-portal link (IPP), a home ports information TLV and a neighbor ports information TLV. The method continues with transmitting the frame encapsulating the DRCPDU from the network device to a neighbor network device.

Various example embodiments for supporting secure communications via secure sessions in communication systems are presented. Various example embodiments for supporting secure communications via secure sessions in communication systems may be configured to support mechanisms in a session layer protocol which enable communications of any communication protocol at any communication protocol layer to be transported over a session layer session (e.g., tunneling any data link protocol, any network layer protocol, any transport layer protocol, and/or any application layer protocol transparently over the session layer protocol), which enable multiple communications of one or more communication protocols of one or more communication protocol layers to be transported over a single session layer session (e.g., multiplexing two or more data streams of any data link protocol, any network layer protocol, any transport layer protocol, and/or any application layer protocol transparently over the session layer protocol), and so forth.

A system comprising a processor and a computer readable memory coupled to the processor, the computer readable memory configured with a page processable by page processing code. The page can be configured to generate a set of random connection data usable by a local server program instance to verify that a connection request is from the page, launch the local server program instance, provide the set of random connection data to the local server program instance, create a client socket instance, send a connection request to the local server program instance to establish a connection between the client socket instance and a server socket instance of the server program instance and based on an acceptance of the connection request by the server program instance, complete the connection. The connection may be usable for bi-directional communication between the page and local server program instance.