Telnet is a remote access protocol that can be used to log on to a remote computer, network device, or a dedicated TCP/IP network. Windows 95/98 and later Windows systems, UNIX/Linux and other systems have built-in Telnet client programs, we can use it to achieve communication with remote switches.
Before using Telnet to connect to a vswitch, make sure that you have prepared the following:
· Install the TCP/IP protocol on the computer used for management and configure the IP address information.
· IP address information has been configured on the managed vswitch. If you have not configured the IP address, you must use the Console port to configure the IP address.
· A User Account with administrative permissions is created on the managed vswitch. If no new account is created, the default Administrator Account of the Cisco switch is "Admin".
Run the Telnet client program on the computer. This program is available in Windows and UNIX and Linux systems, and its usage is basically compatible, especially in Windows 2000 ), and log on to the remote switch. If the IP address of the vswitch has been set to 61.159.62.182, the following describes how to enter the configuration interface. As for how to configure the vswitch, it depends on the actual situation, this document is not detailed. The steps for entering the configuration page are simple, just two simple steps:
Step 2: Click the start button and select the run menu item. Then, in the dialog box, press telnet 61.159.62.182 to enter the logon address. You can also choose not to enter the IP address, after entering the telnet main interface, connect again, but this will take another step. It is better to directly enter the IP address to be connected), as shown in figure 8. If you have configured a name for the vswitch, you can enter the name of the vswitch with a blank space after the "Telnet" command.
Figure 8
The Telnet command is generally formatted as follows:
Telnet [Hostname/port]. Note that "Hostnqme includes the vswitch name, but we have configured an IP address for the vswitch in front of it, therefore, the IP address of the vswitch is more important here. Generally, the "Port" after the format is not required. It is used to set the Port used for Telnet communication. Generally, the Telnet communication Port is specified in the TCP/IP protocol, it is port 23, so we do not need to change it. That is to say we can ignore this parameter.
Step 2. After entering the information, click "OK" or click the Enter key to establish a connection with the remote switch. 9 shows the interface displayed when you establish a connection with a computer through the Tetnet and the Catalyst 1900 switch.
Figure 9
The following figure shows the configuration Menus including Menus and Command Line. Then, you can configure and manage the vswitch as needed.