Elements of network architecture
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There are four basic elements of network architecture, a network must be like in design. Each of them must be planned for the development of the network. These elements are presented below:
Before fault tolerance: the average fault tolerance is to ensure that the network operates, although it occurred. This can not happen, or in many different places within the network, such as cables, routers, switches,Server.
The key idea in the fault tolerance components for the duplication of work make up, I know When error occurred Than the case, it is a functional and an alternate network will still be. This is an important component in the design of the Internet.
According Scalability importance of ensuring the scalability that the proposed network of the future, grow, without the extension. Thus, the network administrator can add more usersthe network or add an entire sub-network without modification of the original network. This element is very important on the Internet, because anyone can see that the Internet continues to grow and more users are added every day.
Third Quality of Service (QoS): QoS is also an important aspect of any network, particularly via the Internet. QoS allows the administrator to lower classified network performance of the higher. SoNetwork will vary from user to user, according to the transmitting or the nature of the users.
Some users of transmitting voice over the network when making a call, while others regularly sends data as files and email. Each of these services requires a different network, or a class that uses the service. Voice and video must be the highest priority, files and emails have the lowest priority. This is because voice and video delaysensitive and must be sent soon.
Safety Fourth: to transmit sensitive data over any network like the Internet, security is often an important aspect to consider. This is because the data can be transmitted to be sensitive or private. This is data encryption, so nobody can read the data other than the target fixed. In an Internet protocol called Secure Hypertext Transfer Protocol is used for this purpose.
Thesensitive data, passwords or credit card numbers that must be protected. are also in the account on a server, user credentials are first defined on the server. This is called authentication and is a further element of security. The two aspects are very important, which are used in Internet protocols. Note that the Internet is an open and security is very important as part of its architecture.
Computer-network 