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• To check the number of VTY ports, use the show running-config | include line vty command.
• To change the number of VTY ports, use the line vty command. (maximum 8 (ID: 0--7))
To make VTY port settings, use the line vty command to specify the target VTY port, and then move to line mode. ID
management for virtual terminal ports is handled within the SWX3220, but since login session and ID assignments depend on
the connection timing, you should normally make the same settings for all VTY ports.
2.1.3 Access from an SSH client
You can use an SSH client on a computer to connect to the SSH server of the SWX3220 and control it. In order to make
settings using SSH, you must first set up a connection environment (IP network) and then make SSH server settings.
The IP address settings of the SWX3220 are as follows.
• The default IPv4 address setting is 192.168.100.240/24 for VLAN #1.
• To change the IPv4 address, use the ip address command.
The following settings on the SWX3220 must be made beforehand when accessing from an SSH client.
• Generate a host key on the SSH server using the ssh-server host key generate command.
• Enable the SSH server functions using the ssh-server command.
• Register the user name and password using the username command.
The SSH server settings of the SWX3220 are as follows.
• Access to an SSH server can be controlled for each VLAN, and is set using the ssh-server interface command.
• Note that the following functions are not supported.
• SSH protocol version 1
• User authentication aside from password authentication (host response authentication, public key authentication, challenge-
response authentication, GSSAPI authentication)
• Port forwarding (X11/TCP forwarding)
• Gateway Ports (Port relay)
• Permitting blank passwords
A virtual communication port by which an SSH client connects is called a "virtual terminal (VTY: Virtual TYpewriter) port."
The maximum number of simultaneous SSH client connections depends on the number of VTY ports of the SWX3220. The
VTY ports of the SWX3220 are as follows.
• With the default VTY port settings, eight VTY ports (ID: 0--7) can be used.
• To check the number of VTY ports, use the show running-config | include line vty command.
• To change the number of VTY ports, use the line vty command. (maximum 8 (ID: 0--7))
To make VTY port settings, use the line vty command to specify the target VTY port, and then move to line mode. ID
management for virtual terminal ports is handled within the SWX3220, but since login session and ID assignments depend on
the connection timing, you should normally make the same settings for all VTY ports.
2.1.4 Console terminal/VTY settings
The SWX3220 lets you make the following settings for console terminals and VTY.
1. Timeout duration interpreted as no operation
2. Number of lines shown in one page of the terminal screen
Setting item Content of setting
Timeout duration interpreted as no operation
Specifies the time after which the login session is forcibly
ended when there has been no key input from the terminal.
With the default setting, the session is forcibly disconnected
after ten minutes.
To make this setting, use the exec-timeout command of the
line mode; this takes effect from the next session.
20 | Command Reference | How to use the commands