How to manage the use of network management Switches

Vswitches are classified into network management switches and non-network management switches based on network management. What are the differences between the two vswitches? Vswitches that cannot be managed by network management cannot be managed. The management function is to monitor vswitch ports, divide VLANs, and set Trunk ports through management ports.

However, a manageable switch can be managed. It has many features that are not available to common switches, such as port monitoring and VLAN division. Whether a vswitch is a manageable vswitch can be distinguished from its appearance. There is usually a serial port or parallel port on the front or back of the network management switch. You can connect the switch to the computer through the serial cable or parallel cable, which is easy to set.

Network Management switches can be managed through the following channels: Through the RS-232 serial port or parallel port) management, through the network browser management and network management software management.

A serial port cable is attached to a network management switch for management. First, insert one end of the serial port cable into the serial port on the back of the switch, and the other end into the serial port of the general computer. Connect the vswitch to the computer. "Super Terminal" programs are provided in Windows 98 and Windows 2000. Open "Super Terminal". After setting the connection parameters, you can use the serial port cable to interact with the switch, as shown in figure 1. This method does not occupy the bandwidth of the switch, so it is called "Out-of-band management" Out of band ).

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In this mode, the switch provides a menu-driven console interface or command line interface. You can use the "Tab" key or the arrow key to move the menu and sub-menu, press the Enter key to execute the corresponding command, or use a dedicated switch to manage the switch. The command sets of vswitches of different brands are different. Even vswitches of the same brand have different commands. It is more convenient to use menu commands.

A network management switch can be managed through a Web browser, but an IP address must be specified for the switch. This IP address is not used unless used by the Management Switch. By default, a vswitch does not have an IP address. You must specify an IP address through the serial port or other methods before you can enable this management mode.

When you use a Web browser to manage a vswitch, The vswitch is equivalent to a Web server, but the webpage is not stored in the hard disk, but in the nvram of the vswitch. You can upgrade the Web program in NVRAM through a program. When the Administrator enters the IP address of the switch in the browser.

A vswitch transmits a webpage to a computer just like a server. It feels like you are visiting a website, as shown in figure 2. This method occupies the bandwidth of the switch, so it is called "In-band management" In band ). If you want to manage a vswitch, you only need to click the corresponding function on the webpage and change the vswitch parameters in the text box or drop-down list. Web management can be implemented on the LAN, so remote management can be implemented.

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