3Com 3031 Command Reference Manual page 389

According to X.25, a timer should be started when a DTE sends a restart request
(or a DCE sends a restart indication). If no peer acknowledgement is received after
this timer is timeout, the sending end will take some measures to guarantee the
normal proceeding of the local procedure. This parameter specifies the delay time
of this timer before the timeout.
For the related commands, see x25 timer tx1, x25 timer tx2, and x25 timer tx3.
Example
Set the restarting timer delay on the X.25 interface Serial0/0/0 to 120 seconds.
[3Com-Serial0/0/0] x25 timer tx0 120
x25 timer tx1 Syntax
x25 timer tx1 seconds
undo x25 timer tx1
View
Interface view
Parameter
seconds: Delay time of calling request (indication) transmission timer in seconds,
and its value ranges from 0 to 1000. By default, the delay time on a DTE call timer
is 200 seconds; that on a DCE call sending timer is 180 seconds.
Description
Using the x25 timer tx1 command, you can set calling request (indication)
transmission timer delay for DTE (or DCE). Using the undo x25 timer tx1
command, you can restore its default value.
According to X.25, a timer should be started when a DTE sends a call request (or a
DCE sends a call indication). If no peer acknowledgement is received after this
timer is timeout, the sending end will take some measures to guarantee the
normal proceeding of the local procedure. This parameter specifies the delay time
of this timer before the timeout.
For the related commands, see x25 timer tx0, x25 timer tx2, and x25 timer tx3.
Example
Set the timer delay on the X.25 interface Serial0/0/0 to 100 seconds.
[3Com-Serial0/0/0] x25 tx1 100
x25 timer tx2 Syntax
x25 timer tx2 seconds
undo x25 timer tx2
LAPB and X.25 Configuration Commands 389