User's Manual
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Relationship between Synchronous Interface and VTY Line
The virtual terminal line provides a synchronous interface to access to the system. When you connect to the
system through VTY line, you actually connects to a virtual port on an interface. For each synchronous interface,
there can be many virtual ports.
For example, if several Telnets are connecting to an interface (Ethernet or serial interface).
Steps for configuring VTY:
(1) Log in to the line configuration mode.
(2) Configure the terminal parameters.
Note: The serial port terminal and telnet terminal may log out the system if they log on to SWITCH
without any operation within a certain time. The timeout can be configured.
For VTY configuration, refer to the section “VTY configuration example”.
5.3 Monitor and Maintenance
Runshow line to checkthe VTYconfiguration.
5.4 Browsing Logs
By default, the system will export the logs to the console port.
After the terminal monitor command is set on the telnet line, the logs will be exported to this line.
By default the logs will not be exported to the cache and cannot be browsed after you run show log. After you
run logging buffer size to set the log cache, you can run show log to browse the log information.
5.5 VTY Configuration Example
It shows how to cancel the limit of the line number per screen for all VTYs without more prompt:
config#line vty 0 32
config_line#length 0
32 vty configuration timeout time
Switch_config#line vty 0 31
Switch_config_line#exec-timeout 10
Switch_config_line#exit
Switch_config#