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58 CHAPTER 4: TERMINAL SERVICE
Features of Terminal
Service at Async Serial
Port
The 3Com Router supports remote configuration on the router via asynchronous
serial port (including synchronous/asynchronous serial port, 8/16 asynchronous
serial port, and AUX port). Please refer to
Chapter 2 “3Com Router User
Interface”of this manual for the specific method to establish the configuration
environment.
The remote terminal service features of the asynchronous serial port are shown in
the following table. Parameters of the terminal program running on the computer
should be set according to this table, and parameters such as baud rate, data bit,
parity check and flow control should be consistent with those of corresponding
router interfaces.
Table 38 Remote terminal service features of the asynchronous serial port
Set the Attributes of
Terminal Service
Usually, the terminal user connected via the console port can last for 3 minutes.
The time for the dumb terminal user can last for 10 minutes. For the user who
uses the dummy terminal in dial-up mode, the disconnection timeout is 6 minutes
but the user can disable this function by using the
undo idle-timeout command
so that all the terminal users will never be disconnected.
Perform the following configuration in system view.
Table 39 Set the attributes of terminal service
By default, the system will enable the timeout disconnection of the terminal user.
Terminal Message
Service
Whenever the terminal users that log into the same router want to communicate
with each other, they can use the terminal message service to send messages. The
remote users can telnet onto the local router to transmit information such as
simple configuration files and description characters that are not easily expressed
through telephones among terminal users, using the
send command. It is much
more convenient than email. Ensuring information security and reliability, the
terminal message service fulfills information interaction among multiple terminals
on one router.
For example, user A and user B respectively log into Router A and Router B. If user
A wants to communicate some information (such as configuration information)
Service Features
Echo mode No local echo
Terminal emulation type VT100
Baud rate Consistent with interface configuration, 9600 bps by default
Data bit Consistent with interface configuration, 8 bits by default
Parity check Consistent with interface configuration, no parity by default
Stop bit Consistent with interface configuration, 1 bit by default
Flow control Consistent with interface configuration, no flow control by
default
Service Attribute
Enable the function of timeout disconnection from the
terminal user
idle-timeout
Disable the function of timeout disconnection from the
terminal user
undo idle-timeout