Talking about the practical problems of vswitch Configuration

The switch configuration is also an important and basic indicator of the network management level. It is not easy to configure a switch, the following describes the vswitch configurations that you are concerned about.

This is mainly due to two reasons: first, the switches configured by the vast majority of enterprises are non-Network-connected vswitches on the desktop, and do not require any configuration at all. They are purely "Dummies". Like hubs, they are connected to the power supply, plug in the network cable to work properly;

On the other hand, most CEOs of medium and small enterprises are not very reassured by their network administrators, so even if the purchased switch is of the network management type, their network administrators are not allowed to configure it, instead, ask the manufacturer's engineers or other professional personnel for configuration. Therefore, it is difficult for these network administrators of small and medium-sized enterprises to have the opportunity to manually configure a switch.

The vswitch configuration process is complex, and the specific vswitch configuration method varies depending on different brands and vswitches of different generations. This article only teaches you the general configuration method, with these general configuration methods, we will be able to link them together.

You can configure a vswitch in two ways: local configuration and remote network configuration, however, note that the latter configuration method can only be performed after the previous vswitch is configured successfully.

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1. Local Configuration

For local configuration, we need to first encounter the physical connection mode, and then we need to face the software configuration, in terms of software configuration, let's take the most common Cisco "Catalyst 1900" switch as an example. The local configuration of the vswitch involves hardware and software connections. The following two steps describe the basic connection process.

1. physical connection

Because of the portable performance of the laptop, the switch is usually configured with a laptop. In the absence of a laptop, you can also use a desktop, but it is more difficult to move. The local configuration of a vswitch is to communicate directly through the "Console" port configured by the computer and the vswitch.

There is usually a "Console" port on the vswitch that can manage the network. This is already described in the previous section of the hub, and the same is true for the vswitch ), it is used to configure and manage vswitches. Connecting to and configuring a vswitch through the Console port is required to configure and manage the vswitch.

Although there are several other ways to configure and manage vswitches, such as the Web mode and Telnet mode), these methods must follow * basic configuration through the Console port. For other methods, IP addresses, domain names, or device names are required.

The newly purchased vswitches obviously cannot have these built-in parameters. Therefore, connecting to and configuring vswitches through the Console port is the most common and basic management and configuration method that must be mastered by the network administrator. Different types of switch Console ports are located in different locations, some on the front panel such as Catalyst 3200 and Catalyst 4006), and some on the rear panel such as Catalyst 1900 and Catalyst 2900XL ).

Generally, most modular switches are located on the front panel, while most fixed configuration switches are located on the rear panel. However, you don't have to worry about the failure to find the Console port. There will be a "CONSOLE" icon on the top or side of the port.

In addition to location differences, the Console port type is also different, the vast majority of such as Catalyst 1900 and Catalyst 4006) are using RJ-45 ports, but there are also a few using DB-9 serial ports such as Catalyst 3200) or DB-25 serial port such as Catalyst 2900 ).

Whether the switch uses a DB-9 or DB-25 serial interface or a RJ-45 interface, you need to connect to a serial port configured with a computer, usually called a terminal, through a dedicated Console line. The Console line corresponds to the different Console ports of the vswitch. There are also two types of Console lines: one is a serial line, that is, both ends are serial interfaces and both ends are master ports ), both ends can be inserted into the serial port of the computer and the Console port of the switch;

The other is flat wire at both ends of the RJ-45 joint RJ-45-to-RJ-45. Since both ends of the flat line are RJ-45 interfaces, you cannot connect directly to the computer serial port, so you must also use a RJ-45-to-DB-9 or RJ-45-to-DB-25) of the adapter. Typically, such a Console line and the corresponding DB-9 or DB-25 adapter are randomly presented in the switch box.

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