S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
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Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 5 Initial Configuration
Configuring Console Port Settings
Disabling a Telnet Connection
To disable Telnet connections to the switch, follow these steps:
Configuring Console Port Settings
The console port is an asynchronous serial port that enables switches in the Cisco MDS 9000 Family to
be set up for initial configuration through a standard RS-232 port with an RJ-45 connector. Any device
connected to this port must be capable of asynchronous transmission. Connection to a terminal requires
a terminal emulator to be configured as 9600 baud, 8 data bits, 1 stop bit, no parity.
Caution
The console baud rate automatically reverts to the default rate (9600) after any BIOS upgrade.
To configure the console port parameters from the console terminal, follow these steps:
Verifying Console Port Settings
Use the
show line console
command to verify the configured console settings. This command also
displays problems that may have occurred along with the other registration statistics.
Command
Purpose
Step 1
switch#
config t
Enters configuration mode.
Step 2
switch(config)#
no
telnet server enable
updated
Disables the Telnet server.
switch(config)#
telnet server enable
updated
Enables (default) the Telnet server to return a Telnet
connection from a secure SSH connection.
Command
Command
Step 1
switch#
config terminal
switch(config)#
Enters configuration mode.
Step 2
switch(config)#
line console
switch(config-console)#
Enters the line console configuration mode.
Step 3
switch(config-console)#
speed 9600
Configures the port speed for the serial console. The
default console baud rate is 9600 baud. The valid values
for Supervisor-1 modules are between 110 and 115200
bps (110, 150, 300, 600, 1200, 2400, 4800, 9600, 19200,
28800, 38400, 57600, 115200). The valid values for
Supervisor-2 modules are 9600, 19200, 38400, and
115200. Be sure to specify one of these exact values.
Step 4
switch(config-console)#
databits 8
Configures the data bits for the console connection. The
default is 8 data bits and the valid range is between 5 and
8 data bits.
Step 5
switch(config-console)#
stopbits 1
Configures the stop bits for the console connection. The
default is 1 stop bit and the valid values are 1 or 2 stop bits.
Step 6
switch(config-console)#
parity none
Configures the parity for the console connection. The
default is no parity and the valid values are even or odd
parity.
