internet message protocol

Introduction to Internet Protocol (i)This article is from "Nanyi blog", please click to read the original We use the Internet every day, do you ever wonder how it is implemented. Billions of computers worldwide, connected together, 22 communication. Shanghai a piece of network card sends out the signal, Los Angeles another piece of network card incredibly rece

Ext.: http://www.ruanyifeng.com/blog/2012/05/internet_protocol_suite_part_i.htmlWe use the Internet every day, have you ever wondered how it is implemented?Billions of computers worldwide, connected together, 22 communication. Shanghai a piece of network card sends out the signal, Los Angeles of another piece of network card incredibly received, the two actually do not know each other's physical location, you do not think this is a very magical thing?

Today we continue to discuss the agreement, today basic to a one-off chat agreement custom finished, the previous we told the login process, then the login is finished chatting, first we still use a and B as an example, a send a message to B, then the agreement of the message is as followsSend Message Protocol:{"id": "

Http://www.itpub.net/thread-419521-1-1.htmlWhen I first entered the financial industry, I knew the IS08583 message protocol, I think maybe I have not entered the industry have already heard, know ISO8583 influence how big. When I first approached it, it was true that some of the details were not very clear and confusing to some places. In view of this, I think a lot of peers will certainly go through the sa

Document directory Google launches Protocol Buffers: competing for the Internet Data Format Http://www.cnbeta.com/articles/59752.htmgooglepush protocol Buffers: compete for the Internet Data Format Ugmbbc was released on 17:34:09 |2159 read fonts: large and small print preview Thank you for your delivery.News sour

Transferred from: http://segmentfault.com/a/1190000000707577ObjectiveWe use the Internet every day, have you ever wondered how it is implemented?Billions of computers worldwide, connected together, 22 communication. Shanghai a piece of network card sends out the signal, Los Angeles of another piece of network card incredibly received, the two actually do not know each other's physical location, you do not think this is a very magical thing?The core of

Internet protocol details you must know Internet Protocol: 1 .?Overview: 1.1Five-layer model: The implementation of the Internet is divided into several layers. Each layer has its own functions. Like a building, each layer is supported by the next layer. The user is only e

1. IntroductionICMP is considered to be part of the IP layer. It transmits error messages and other matters needing attention.2. Types of ICMP messagesThe message type is determined by the 8-bit type and 8-bit code in the ICMP message.The following conditions do not cause ICMP error messages: ICMP error message The destination address is the IP datagram of the broadcast address Datagrams th

Technorati Tags: ipv6,icmpv6,ccie, routing, ICMP errorProfile--icmpv6 (Internet Control Message protocol for the IPV6) is one of the underlying protocols of IPV6. defined in RFC2463 .-Used to pass information or errors generated in message forwarding.--icmpv6-defined messages are widely used in other protocols. Include

This is a creation in Article, where the information may have evolved or changed. Background Now when writing the client or webpage, more and more need to deal with the long connection, especially when the boss is going to engage in a chat system, the back-end eldest brother can build a TCP or WebSockets-based message protocol in minutes. But the problem is that with every new project, the back-end bosses c

Internet Group Management Protocol) No matter how many routing protocols are running on the multicast internet, IGMP must be run between the host and the router. IGMP must be run on all routers of multicast hosts that want to join multicast groups and subnets connected to all interfaces. This protocol is similar to ICM

During this period of time, we have been implementing the China Mobile WMMP Internet Protocol. Now we will briefly summarize this protocol. This Protocol is mainly used for M2M platform to remotely manage M2M terminals through GPRS network or SMS, including assigning terminal serial numbers and collecting terminal c

ICMP transmits errors and management messages between IP systems and is an integral part of any IP implementation and requirements. ICMP can be divided into two categories: Error and query. Inquiry messageis defined by a pair of requests and answers. Error messages typically contain the IP header (and options) of the first shard of the IP packet that caused the error, plus the Shard data sectionThe first 8 bytes.All currently defined ICMP messages are displayed. The two lines above are the reque

The previous article analyzed the overall concept of the Internet, from bottom to bottom, and the design philosophy of each layer of protocol. This is a question from the designer's perspective. Today I want to switch to the user's perspective to see how users interact with these protocols from top to bottom. ========================================================== ====================================== I

Internet ProtocolI. OverviewThere are different models for layering, some models are divided into seven layers, and some are divided into four layers. Here is the introduction of the Internet into five layers.The bottom layer is called the "Physical layer" (physical layer), the topmost layer is called the "Application Layer" (Application layer), the middle layer three (bottom-up) is the "link layer", "Netwo

[Network layer] Analysis Network Layer-Internet Control Packet Protocol ICMP (Internet Control Message Protocol) 1) Message format: the ICMP packet is encapsulated into the data part of the IP packet, and the data part of the ICMP

ObjectiveThe previous note has gone through all the message types and tried to decipher it from the point of view of the message flow.Network failureIn any network environment, there will be a connection failure, such as leaving the company door at the moment without a WiFi signal. But the other end of the persistent connection-the server may not immediately know that the other side is disconnected. Similar

ObjectiveImmediately after the first introduction, this article is the second, the main carding MQTT-SN 1.2 protocol defined in the message format.Generic message Format message Header Other variable parts 2/4 byte representation N-Byte composition

ICMP is a protocol of the network layer, which can be regarded as the satellite protocol of IP protocol, because it is mainly used by IP to exchange error messages and other information needing attention with other hosts or routers. Of course, higher-level protocols (TCP/UDP) may even be used by some user processes to use ICMP packetsThe processing of the registe

stream appears at the other end of the TCP connection. In addition, TCP does not explain the content of the byte stream . TCP does not know whether the transmitted data byte stream is binary or Ascⅱ characters, EBCDIC characters, or other type of data. The interpretation of the byte stream is explained by the application layer of both sides of the TCP connection. This processing of byte streams is similar to the way the UNIX operating system handles files. The Unix kernel does not interpret wha