Sun Microsystems Sun Fire V440 Diagnostics And Troubleshooting Manual page 201

2. Open a terminal session on the connecting device, and type:
% telnet IP-address-of-terminal-server port-number
For example, for a Sun Fire V440 server connected to port 10000 on a terminal server
whose IP address is 192.20.30.10, you would type:
% telnet 192.20.30.10 10000
3. If you want to use ttyb instead of the serial management port, do the following:
a. Redirect the system console by changing the OpenBoot configuration variables.
At the ok prompt, type the following commands:
ok setenv input-device ttyb
ok setenv output-device ttyb
Note – You can only access the sc> prompt and view POST messages from either
the serial management port or the network management port.
Note – There are many other OpenBoot configuration variables. Although these
variables do not affect which hardware device is used to access the system console,
some of them affect which diagnostic tests the system runs and which messages the
system displays at its console. For details, see "Controlling POST Diagnostics" on
page 13.
b. To cause the changes to take effect, power off the system. Type:
power-off
ok
The system permanently stores the parameter changes and powers off.
Note – You can also power off the system using the front panel Power button.
c. Connect the null modem serial cable to the ttyb port on the Sun Fire V440
server.
If required, use the DB-9 or DB-25 cable adapter supplied with the server.
Appendix A Configuring the System Console 183