For the management of industrial Ethernet switches, the management mode of the console is combined with the wizard mode of IE browsing and network management software. The following describes the three management methods:
1. Management through serial port
The network management switch comes with a serial cable for switch management. First plug one end of the serial cable into the serial port on the back of the switch, and the other end is plugged into the serial port of the ordinary computer. Then power on the switch and computer. The "HyperTerminal" program is available in Windows. Open "HyperTerminal". After setting the connection parameters, you can interact with the switch through the serial cable. This method does not occupy the bandwidth of the switch, so it is called "out of band".
In this management mode, the switch provides a menu-driven console interface or command line interface. You can use the "tab" or arrow keys to move through menus and submenus, press Enter to execute the appropriate commands, or use a dedicated switch management command set to manage the switch. The command set of different brands of switches is different, even the switches of the same brand, the commands are different. Using menu commands is more convenient in operation.
2. Managed by the web
The managed switch can be managed via the web (web browser), but the switch must be assigned an ip address. This ip address has no other use than the management switch. In the default state, the switch does not have an ip address. You must enable an ip address through the serial port or other means to enable this management mode.
When using a web browser to manage the switch, the switch is equivalent to a web server, but the web page is not stored in the hard disk, but in the nvram of the switch, the web program in nvram can be upgraded through the program. When the administrator enters the ip address of the switch in the browser, the switch passes the web page to the computer just like a server, and it feels like you are visiting a website. This way takes up the bandwidth of the switch, so it is called "in band".
If you want to manage the switch, just click on the corresponding function item in the web page and change the parameters of the switch in the text box or drop-down list. Web management can be done on the LAN, so remote management is possible.
3. Managed by network management software
The network management switches all follow the snmp protocol (Simple Network Management Protocol), which is a set of network equipment management specifications that conform to international standards. Any device that complies with the snmp protocol can be managed by the network management software. You only need to install a set of snmp network management software on a network management workstation, which can easily manage switches, routers, servers, etc. on the network through the LAN. Through the interface of snmp network management software, it is also an in-band management method.
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