hl7 protocol

The Transport layer provides communication services to the application layer above it, which belongs to the highest level of the communication section and is also the bottom of the user's function. Two hosts are actually communicating with each other in a two host application process . Communication between application processes is also known as end-to-end communication . The messages of different processes in the application layer are delivered down to the transport layer through different

Protocol (Protocol) 's role:1. Specification interface, used to define a common set of interfaces;2. Constrain or filter the object.Agent (Delegate):It is in itself a design pattern that delegates an object I. Define a common set of interfaces1 /** Agreement*/2@protocol Executeprotocol 3 4 @required5 /**6 * @brief A method that must be implemented7 */8-(Nsuinteg

Tcp-ip detailed volume 3:TCP transaction protocol, HTTP, NNTP, and UNIX domain protocol "PDF" Download Link:https://u253469.pipipan.com/fs/253469-230062539Content IntroductionThe TCP. IP Detail (Volume 3): CP Transaction Protocol. The HP.P and UIX domain protocols are the continuation of the TCP/IP detailed series. The main contents include: TCP transaction

1. Introduction to ZigBee protocol stackProtocol is a series of communication standards, both sides of the communication need to follow this standard for normal data transmission and reception. Protocol stack is a concrete implementation of the Protocol, the popular protocol stack is a

Note: The content of this article comes from the Netizen God, as the study note record in this. If there is a similar, please understand;The TCP/IP protocol stack is divided into four layers: application layer, Transport layer, network, data link layer, each layer has corresponding protocol;The so-called protocol: is a format for both parties to transmit data. Th

first, the protocol formatThe format of the ARP protocol is as follows: two chunks to explain: 1, the red box up is: Ethernet header, a total of 14 bytes. This is part of the packet that you send whatever Ethernet protocol you want, and it is necessary. Description of each field: Field The number of bytes occupied Description

Today, let's talk about the standard Internet communication protocol-TCP/IP protocol.This part of content may not be very understandable and abstract. It is a tough nut for beginners, but since it is a beginner, don't let everyone have any mental burden. No one is a genius, right? I will try my best to give you more examples for your understanding!1. Basic ContentTCP/IPTransmission Control Protocol/Internet

Principle Analysis of HTTP protocol and HTTP protocol Baidu Encyclopedia: HyperText Transfer Protocol (HTTP) is the most widely used network Protocol on the Internet. All WWW files must comply with this standard. HTTP was designed to provide a method for publishing and receiving HTML pages. In 1960, American Ted Nels

Up "mobile device Management (MDM) and OMA (OTA) DM Protocol Wizard (ii)--WAP Protocol (1)"8.WAP Server and WAP gatewayWAP server can directly to the mobile terminal to provide WAP application services, many people think that only WAP server to provide WAP content, this is incorrect, WAP content can be provided by any ordinary Web server, but this server must contain a WAP gateway, So you can skip the Third

As the basis of web services, HTTP protocol should be taken seriously, but colleagues around the world can clearly understand the rare issue of HTTP protocol. Since it is the foundation, we should be able to master it earlier, so we have been using it for nearly half a year (January 1, June 2016) As the basis of web services, HTTP protocol should be taken serious

Bacnet-building Automation and control network for short, for the building automation network and communication protocols developed. An open building automation communication standard developed by the American Association of HVAC Engineers. December 1995 was approved as the United States national standards, and formally named Ansi/ashrae 135-1995 Standard. January 2003 becomes the official standard iso16484-5 of the ISO. BACnet with its openness, ease of expansion, flexibility of the characteris

tolerated, so we adopt the UDP transport protocol. But the UDP protocol itself is non-connected and does not provide quality assurance. The high-level protocol rtp/rtcp based on UDP can provide traffic control and congestion control services together. The graph gives a RTP/UDP/IP-based H. 264 frame for video transmission.H. 264 RTP encapsulation strategy for vid

Routing protocol is divided into static routing protocol and dynamic routing protocol. There are many kinds of dynamic routing protocols, such as RIP, OSPF, EIGRP, and so on.1. RIP (Routing Information Protocol) is the first open standard used between router manufacturers. RIP has two versions: RIPv1 and RIPV2, which a

Turn from: 50910999SSL1. Secure Socket LAYER,SSL protocol is a protocol that securely exchanges information between a Web browser and a Web server.2. Three features of the SSL protocol? Confidentiality: After the session key is defined in the handshake protocol, all messages are encrypted.? Authentication: Optional cli

Contents Introduction overhead UDP connections/spoofing Time outs Examples UDP tracker protocol Existing IPv6 Extensions References and footnotes Introduction To discover the other peers in a swarm a client announces it's existance to a tracker. The HTTP protocol is used and a typical request contains the following Parameters:info_hash, key, peer_id, port, download Ed, left, uploaded and compact. A response

Preliminary Study on WCF-19: WCF Message Protocol, Preliminary Study on wcf-19 ProtocolWCFMessage Protocol Overview When a WCF application is generated, developers usually pay close attention to the data structure and serialization issues, rather than the message structure carrying data. For these applications, it is easy to create data protocols for parameters or return values. However, it is equally im

HTTP protocol learning and http protocol Learning 1. HTTP Overview HTTP is actually a set of language communication rules! Http uses a reliable data transmission protocol. Therefore, even if the data comes from the other end of the earth, it can ensure that the data is not damaged or messy during transmission. B/SStructure In the browser, the user requests the sp

Differences between the TCP protocol and the UDP protocolWhether connection-oriented connection oriented non-connectedReliable unreliable transmission reliabilityApplications transmit small amounts of data in large amounts of dataSlow speedTCP requirements and server remain connected UDP does not require TCP data to be ordered (first written data is sprints first received) UDP data is unorderedAsyncsocket is a set of open source libraries designed for

MMS (Microsoft Media Server Protocol) protocol Overview:A protocol used to access and stream receive. ASF files on the Windows Media Server. The MMS protocol is used to access unicast content on Windows Media publishing points. MMS is the default method for connecting to the Windows Media Unicast service. If the audien

Protocol Analysis-DHCP protocol decoding [DHCP protocol Introduction] DHCP, full name: Dynamic Host Configuration Protocol, Chinese name: Dynamic Host Configuration Protocol, its predecessor is BOOTP, it works at the OSI Application Layer and is a self-raising