The CONSOLE port is generally the control port of the device, which implements initialization or remote control of the device. The console port is directly connected to the serial port of the computer by using a dedicated connection line. The terminal emulation program (such as "hyper terminal" under Windows) is used for local configuration of the router. The console port of the router is mostly the RJ-45 port.
The CONSOLE port is used to configure the switch, so only the managed switch is available. Also, note that not all network management switches are available, because there are various configurations of the switch, such as Telnet command line mode, Web mode, and TFTP mode.
Although in theory, the basic configuration of the switch must pass the switch FDDI interface, the basic configuration of some brands of switches is configured at the factory, and does not require basic configuration such as IP address, basic user name, so this The network management switch does not need to provide the FDDI interface of this switch, and it still accounts for the majority. Such switches usually only need to perform some advanced configuration through a simple Telnet or Java program web.
Of course, some switches still provide switch FDDI interfaces, but it should be noted that the console ports used for switch configuration are not the same for all switches, and some use the same RJ-45 type switch FDDI interface as Cisco routers. Others use the serial port as the FDDI interface of the switch.
In addition to the above two switch console ports, there is also an interface commonly used for switch configuration, which is a 25-pin "D" interface. Regardless of whether the switch uses the DB-9 or DB-25 serial interface or the RJ-45 interface, when configuring the switch, it is usually necessary to connect to the serial port of the configuration computer (usually called terminal) through a dedicated console cable. , adapt to the switch FDDI interface different from the switch.
The Console line is also divided into two types, one is a serial line, that is, both ends are serial interfaces (both ends are female or one end is male and the other end is female), and both ends can be respectively inserted into the computer. The serial port and the console port of the switch; the other is a flat cable with RJ-45 connectors (RJ-45-to-RJ-45) at both ends.
Since both ends of the flat cable are RJ-45 connectors, they cannot be directly connected to the serial port of the computer. Therefore, you must also use an RJ-45-to-DB-9 (or RJ-45-to-) as shown in Figure 8. DB-25) adapter. Normally, such a console line and the corresponding DB-9 or DB-25 adapter will be randomly presented in the box of the switch.
A switch that can be managed by the network generally has a "Console" port [1], which is specifically used to configure and manage the switch. Connecting and configuring the switch through the console port is a step that must be taken to configure and manage the switch. Because the configuration of other methods often needs to be implemented by means of IP address, domain name or device name, it is obviously impossible for the newly purchased switch to have these parameters built in, so the console port is the most common and basic switch management and configuration port.
Different types of switch console ports are located at different locations, some on the front panel and some on the rear panel. Usually modular switches are mostly located on the front panel, while fixed configuration switches are mostly located on the rear panel. There will be an identifier like "CONSOLE" on the top or side of the port.
In addition to the different locations, the types of console ports are different. Most switches use RJ-45 ports, but a few use DB-9 serial ports or DB-25 serial ports.
A typical VPN device has a control port "Console" that is used to connect to a computer or terminal device and configure the router with specific software. This port provides an EIA/TIA-232 asynchronous serial interface for local configuration of the router (the first configuration must be done through the console port).
The Console port is directly connected to the serial port of the computer using a dedicated configuration cable, and is configured locally using a terminal emulation program (such as "HyperTerminal" under Windows).
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