Brief Introduction to vlan configuration of Huawei switches in LAN

A Brief Introduction to vlan configurations of Huawei switches in Lan, more and more users are using vlan configurations of Huawei switches, and maintenance of vlan configurations of Huawei switches has become a problem that cannot be ignored. Only after maintenance is done, the node performs "monitoring" to check whether the network is busy before transmitting data.

We know that the traditional LAN Ethernet adopts the CSMA/CD method with conflict detection. In the CSMA/CD network, nodes can use the network whenever they have data to be sent. Before a node transmits data, it performs a "listener" to check whether the network is busy.

If not, the node starts to transmit data. If the network is in use, the node waits. If the two nodes do not hear anything and start to use the line at the same time, a conflict will occur. When sending data, it uses a broadcast address.

All the PCs in This CIDR block will receive data packets, so that if there are many PCs in This CIDR block, it is easy to cause a broadcast storm. Conflicts and broadcast storms are important factors affecting network performance. To solve this problem, we introduced the vlan configuration concept of Huawei switches in the virtual LAN.

A virtual network is a virtual working group established by a network switching device in the entire network. The virtual network is logically equal to the Layer 2 broadcast domain of the OSI model, and has nothing to do with the specific physical network and geographical location. A virtual workgroup can contain departments and working groups in different locations, without having to reconfigure any ports physically, thus realizing that network users are not related to their physical locations.

The Virtual Network Technology divides traditional broadcast domains into independent sub-broadcast domains as needed, and limits broadcast in virtual working groups. Due to the narrowing of the broadcast domains, the proportion of bandwidth consumed by broadcast packets in the network is greatly reduced, and the network performance is significantly improved.

Let's take a look at it. Departments of the same nature in the two floors are divided into a Huawei switch vlan configuration. In this way, the accounting data will not be broadcast to machines on the market, nor will it conflict with machines on the market. Therefore, the vlan configuration of a Huawei switch effectively separates conflicting domains and broadcast domains.

We can define the vlan configuration of a Huawei switch on a port of the switch. All terminals connected to this specific port are part of the virtual network, and the entire network can support vlan configuration of multiple Huawei switches. Vlan configurations of Huawei switches minimize unnecessary data traffic by establishing a network firewall, isolating transmission between vlan configurations of each Huawei switch and possible problems, greatly increasing network throughput, reduces network latency.

In a virtual network environment, you can divide different virtual networks to control the communication between users in the same physical network segment. In this way, data confidentiality is effectively realized, and configuration is not troublesome. The network administrator can logically reconfigure the network to quickly, easily, and effectively balance load traffic, you can easily add, delete, and modify users without physically adjusting network configurations.

Since the vlan configuration of a Huawei switch has so many advantages, why can't we understand it and apply the vlan configuration technology of a Huawei switch to our real network management. Let's take an example of configuring static vlan configurations for a Huawei switch on a Catalyst 1900 switch to see how to configure vlan configurations for a Huawei switch. After configuring the Super Terminal, you can refer to 1900 Series Ethernet switch Quick Start Guide or other CISCO references after connecting to the 1900 switch. The following main configuration interface is displayed:
1 user (s) now active on Management Console.
User Interface Menu
[M] Menus
[K] Command Line
[I] IP Configuration
Enter Selection:

We will briefly introduce the three options shown here. [M] Menus is the main menu, mainly the initial configuration of the switch and monitoring the running status of the switch. [K] Command Line is a Command Line. It is similar to configuring and monitoring a vro using commands in a vro. [I] IP Configuration is an option for configuring IP addresses, subnet masks, and default network management.