obd2 protocol

Network Protocol Resolution-802.11 Protocol Summary, protocol-802.11802.11 Protocol Version Description Operating frequency 802.11 Original Standard 2.4G (2 Mb/s) 802.11a New Physical Layer supplement 5G (54 Mb/s) 802.11b The most popular standard, Wi-Fi 2

IP Datagram IP is the core protocol in the TCP/IP protocol family. All TCP, UDP, ICMP, and IGMP data are transmitted in the IP datagram format. The IP address only provides the best-effort transmission service. If an error occurs, the IP address will lose the data and send an ICMP message to the source. In addition, IP datagram can not be accepted in the sending order. The IP datagram format is as follows:

Video image transmission has the following characteristics: 1 requirements for small transmission delay, high real-time, 2 transmission flow, requiring high transmission efficiency; 3 allow transmission errors or data loss on certain programs. According to the above characteristics, it is more ideal to use UDP protocol to transmit video relative to TCP protocol. UDP is the abbreviation of User Datagram

Mobile device Management (MDM) and OMA (OTA) DM Protocol Wizard (ii)--WAP Protocol (1)On the "Mobile Device Management (MDM) and OMA (OTA) DM Protocol Wizard (i)"16. Can I access WiMAX devices directly from the Web server?See "WAP Protocol (1)--6th WAP Network Deployment" in this article17. Can I use TCP instead of WDP

First, the introduction The Protocol deals with properties and methods that act like abstract classes in Java, and the types in swift implement agreed properties and methods by complying with the protocol. The protocols in Swift are declared using the Protocol keyword. The protocol in Swift also has a very interesting

Redis Communication Protocol (protocol) This document is translated from: Http://redis.io/topics/protocol. The Redis protocol compromises between the following three goals: ease of implementation can be efficiently analyzed by computer (parse) can easily be read by humans to understand the network layer The client and

The web point-to-point program transmits data, is the HTTP protocol or TCP/IP protocol TCP/IP protocol and HTTP protocol what is the difference, two Web program point-to-point transmission data, you will choose that one. Today on the Internet to see such an interview topic, triggered a series of search data, review

Let's look at the three-segment code:Index.html:Copy CodeCopy CodeIndex.js:Import * as Circle from './test ';Console.log (' Circle area: ' + Circle.area (4));Console.log (' circumference length: ' + circle.circumference (14));Test.js:Copy CodeExport function Area (RADIUS = 5) {return Math.PI radius radius;}Export function circumference (radius = 5) {Return 2 math.pi radius;}Copy CodeUse is lucky 28 source download Dashengba.com "Holy Source Forum" enterprise-e 3266397597 module syntax, but throu

TPC/IP Protocol is a Transport layer protocol, which mainly solves how data is transmitted in the network, and HTTP is the application layer protocol, which mainly solves how to wrap the data. regarding the relationship between TCP/IP and HTTP protocol, the network has a relatively easy to understand: "When we transmit

SIP (Session Initiation Protocol) Conversation Initiation Protocol is an application layer control (signaling) protocol for network telephony and conferencing. It is mainly a multimedia communication protocol based on IP network. It can realize the signaling functions are also using RTP as a media transmission

This paper mainly introduces the implementation of the 802.1Q VLAN protocol in the Ethernet switch, and some basic contents of the 802.1P protocol, details of the implementation of the two Protocols, and reference data of the 802.1Q and 802.1P protocols. First, 802.1Q protocol 802.1Q protocol, that is, Virtual bridge

A host that communicates in the same network (which is not specifically referred to as an Ethernet network) must have the MAC address of the target host to correctly send the data to the target host, so how to know the MAC address of the target host. Can be passed through the ARP protocol. The ARP protocol is used to obtain the corresponding MAC address of the destination IP address, that is, the ARP

Today, a customer response, Remote Desktop can not connect, I looked, ping is normal, telnet a remote port, but also can connect, but the remote Desktop is always not connected, first to help him restart a bit. After the reboot, the remote can log in, went to check the server logs, and found such an error: The RDP protocol component x.224 found an error in the protocol stream and interrupted the client c

different physical machines are consistent. In order to solve this distributed consistency problem, predecessors summed up many typical protocols and algorithms during the repeated trade-offs between performance and data consistency. Among the more notable are the second-order commit protocol (two Phase commitment Protocol), the Sankai commit protocol (both Phas

HTTP protocol, Hyper-text Transfer Protocola. The HTTP protocol is now using version 1.1.B.The HTTP protocol is the application-layer protocol, which requires the transmission of data using a reliable transport protocol. Typically the Transport layer

Article turned 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: Opt

MySQL5.6 has many new features, many of whom are interested in the global transaction ordinal function (Gtids). The reason why everyone is interested in this feature is that it's always a hassle to reconnect from the server and a new primary server, but it's easy to do after enabling the Gtids feature. However, the use of Gtids not only replaces the old binary log file/location with a separate identifier, it also uses a new replication protocol. If yo

Protocol buffers is a data description language developed by Google, similar to XML that can serialize structured data for data storage and communication protocols. At this stage of support Hold three programming languages, such as C + +, JAVA, Python. It is a binary format, much faster than using XML for data exchange. It can be used in data communication between distributed applications or in heterogeneous environments. Http://code.google.com/intl/z