Configuration management and maintenance of VLAN

VLAN is a virtual network, VLAN is divided into three ways: based on port, based on MAC address and ip-based address. In practical applications, the role of virtual network is similar to the division of different working groups, that is, the virtual network can not directly communicate with each other, but must be forwarded through the router, which to some extent improve the security performance of the entire network, but also played a role in improving the efficiency of network transmission.

In the process of the establishment of the enterprise network, there are many users of the VLAN there is a certain degree of bias, so in this article will be discussed in this paper on the configuration of such networks, management, maintenance and other aspects of the more systematic content, I hope to have some help for users with demand.

First, the establishment and configuration of Enterprise VLAN network

First, we need to understand that the data communication between different VLANs cannot be achieved without routing. The current market has routers with routing functions, there is a three-tier switch with routing function. Among them, the three layer switch is suitable for dividing the large and medium VLAN network, the router is suitable to divide the small VLAN network. Therefore, for the general Enterprise network environment, the router way to build VLAN network is the most practical solution.

In layman's parlance, the establishment of VLAN network is actually relatively simple, because VLAN network implementation is mainly rely on software configuration, hardware is only a platform to support the role. The hardware aspect is to make a good match between the router and the switch. For example, when choosing a router to pay attention to how many computers can take, in addition, the router and the network second layer of the switch to connect the port to the convergence port, the router and switch to achieve a convergence link between the connection. The entire hardware connection is indicated as shown in the following illustration.

Figure 1 VLAN network hardware connection signal

Specific to the software configuration process, the VLAN configuration process is actually very simple, just two steps: one is for each VLAN group name; the other is to the corresponding VLAN corresponding to the corresponding switch port. In the actual configuration process, usually in the switch, the specific configuration process due to the different devices will have operational differences, so you can refer to the two-tier or three-tier switch configuration instructions, generally have a corresponding configuration introduction.

Switch configuration Instructions