R2511-HP MSR Router Series Terminal Access Configuration Guide(V5)
17
Ste
p
Command Remarks
25. Configure the maximum
size of data to be sent to a
terminal at one time.
sendbuf bufsize size
Optional.
500 bytes by default.
26. Configure the terminal
send buffer threshold.
sendbuf threshold value
Optional.
Not configured by default.
27. Configure the connectivity
test hotkey.
testkey ascii-code&<1-3>
Optional.
Not configured by default.
28. Configure TCP parameters.
tcp
{
keepalive
time count
|
nodelay
|
recvbuf-size
recvsize
|
sendbuf-size
sendsize
}
Optional.
By default, the receive buffer size is
2048 bytes, the send buffer size is 2048
bytes, delay is enabled, the keepalive
interval is 50 seconds, and the keepalive
number is 3.
29. Configure a description for
a VTY.
vty vty-number
description
string
Optional.
Not configured by default.
30. Configure the character
string for triggering VTY
screen saving.
vty
vty-number
screencode
string
Optional.
Not configured by default.
31. Configure the VTY
switching hotkey.
vty
vty-number
hotkey
ascii-code&<1-3>
Optional.
Not configured by default.
32. Update the configuration.
update changed-config
Optional.
If you modify the terminal template that
has been applied to an interface, use
this command to update the
configuration. Executing this command
will disconnect connections. Make sure
critical services are not affected.
Configuring the TTY receiver
The receiver of TTY terminal access is an FEP. The main program of terminal access at an FEP is the
program ttyd (ttyd executable), which implements the data exchange with the router-side programs. For
information about how to configure your FEP, see "Installing and configuring an FEP."
TTY terminal access configuration example
Network requirements
As shown in Figure 4, the deposit services run on the Unix server, whose IP address is 1.1.254.77/16. The
listening port of the ttyd program on the Unix server is 9010.
The router is connected to four terminals through its four asynchronous interfaces. The source IP address
to be bound is 2.2.2.1/32.