【 Weak current College 】 on TCP/IP and the various different WAP protocol

Many people have such a question: since the communication network has been able to access the Internet, and many mobile terminal also supports WEB network access, why use the WAP protocol? here we are concerned about TCPIP and WAP protocol. Through article believe everyone can find the answer to this question.

At the moment the explosive growth of data business trends continue, at the same time, the mobile business is booming in the world, thereby building a combination for a mobile data is the most promising business industry? but when people began to seriously consider building a mobile data network and service, the problem is clearly better than the original ideas much more complicated issue is standard buildings, because the data service is the key to success is supported by the TCPIP standard applications and services, and these applications and services in key and a user interface, real-time browser standards interface?, on the other hand, mobile voice services is the key to success, CSM and CDMA standards exist for the formation of the mobile industry has played a role of adding? so when two power flow together, will soon have the inheritance and development issues? that is, the mobile data service whether you need a new standard this is why there will be a WAP (wireless application protocol), but also why you want to compare it with the TCPIP reasons?

In fact, TCPIP and WAP is high agreement, therefore, in a comprehensive understanding of wireless data, you should also consider the lower layer protocols, such as GPRS and 3 g? but this will be the content of other articles, here are the closest to the customer's agreement with some of the more senior level?

Structure comparison

Now any agreement originated from OSI's layered architecture, the author would like to use the seven-layer protocol model as a reference, the analysis and comparison of TCPIP and WAP protocol?

In comparison, we also must be clear, TCPIP protocol and positioning of the WAP protocol, that is TCPIP protocol is an involved backbone network and edge network protocol, and the WAP Gateway Protocol is an edge and access agreements only apply to wireless mobile network perimeter? this agreement positioning differences lead to TCPIP protocol stack consists of traditional hierarchy of 3/4/5/6/7 layer protocol functionality, while the WAP protocol stack only contains 4/5/6/7 layer functionality? due to lack of WAP in the third layer, network layer function, WAP not fit for backbone network protocol?

(1) TCPIP application layer actually cover the OSI protocol model of three-storey functionality, this early in the development of the Internet is useful, but when the IP phone? video services and the emergence of multimedia business, and gradually become mainstream IP service, is not a satisfactory agreement structure model?

(2) The WAP protocol stack is actually part of the restored three-storey business of OSI, which increasingly complex data applications and services is valuable, particularly in wireless mobile e-commerce environment and even more so?

(3) in the transport layer, TCPIP and WAP stack of huge, connection-oriented TCP is the body of the Internet, WAP, no attached WDP is the wide-area wireless mobile data network key?

(4) The WAP protocol stack can also provide a security protocol that the wireless transport layer security (WTLS) Protocol, it is actually from TCPIP system TLS/SS Protocol buckled desalination layer protocol is designed to highlight the TCPIP and WAP protocol stack structure of comparison, the practical application of such processing is not secure?

Here the WAE including WML (wireless markup language), WMLS (WMLScript) and WTA (wireless applications), and the application tier is TCPIP include JavaScript? HTML?? SSL HTTP? through the analysis we found from IETF and WAP Forum between the two types of Protocol wide relevance, and the relevance for understanding WAP as well as the development of the TCPIP system is very necessary. table 1 shows the correspondence between the corresponding agreement?

Prospect

From the standard view, the WAP has progress from 1.0 version, the version 1.2 WAP prospects will be better and better when you consider the WAP in, we must note that WAP is TCPIP protocol stack a succession and development, it actually is for wide-area wireless mobile environment of an optimized protocol? although TCPIP protocol family already has a long history, but it's still in continuous improvement and development, that is to say, it also constantly to inherit and develop the? if people in the cable field can accept XoverIP/IPoverX, then in the wireless field may occur XoverWAP/WAPoverX, or more specifically occurs XoverWDP/WDPoverX?

On the other hand, we must also be noted that the current WAP also is not an international organization for Standardization (ISO) standard, nor a national standard, in fact it is only a forum standards? but who can deny that it is wireless mobile data authoritatively? if we dare to imagine that someday, like WAP to TCPIP, and ultimately the success of enter the wired areas, through its continued succession and development, replace the existing TCPIP protocol stack? because we have no reason to say that wireless optimization Protocol would not fit the cable environment, perhaps more complex network operations, network status, the ever-changing the future of wireless optimization of network protocol also is on the cable network optimization Protocol?