Cisco Systems 2960 Manual De Usuario
12-12
Catalyst 2960 and 2960-S Switch Software Configuration Guide
OL-8603-09
Chapter 12 Configuring Interface Characteristics
Using the Switch USB Ports (Catalyst 2960-S Switches Only)
In the sample output, switch 1 has a connected USB console cable. Because the bootloader did not
change to the USB console, the first log from switch 1 shows the RJ-45 console. A short time later, the
console changes and the USB console log appears. Switch 2 and switch 3 have connected RJ-45 console
cables.
change to the USB console, the first log from switch 1 shows the RJ-45 console. A short time later, the
console changes and the USB console log appears. Switch 2 and switch 3 have connected RJ-45 console
cables.
switch-stack-1
*Mar 1 00:01:00.171: %USB_CONSOLE-6-MEDIA_RJ45: Console media-type is RJ45.
*Mar 1 00:01:00.431: %USB_CONSOLE-6-MEDIA_USB: Console media-type is USB.
switch-stack-2
*Mar 1 00:01:09.835: %USB_CONSOLE-6-MEDIA_RJ45: Console media-type is RJ45.
switch-stack-3)
*Mar 1 00:01:10.523: %USB_CONSOLE-6-MEDIA_RJ45: Console media-type is RJ45.
When the USB cable is removed or the PC de-activates the USB connection, the hardware automatically
changes to the RJ-45 console interface:
changes to the RJ-45 console interface:
switch-stack-1
Mar 1 00:20:48.635: %USB_CONSOLE-6-MEDIA_RJ45: Console media-type is RJ45.
You can configure the console type to always be RJ-45, and you can configure an inactivity timeout for
the USB connector.
the USB connector.
Configuring the Console Media Type
Beginning in privileged EXEC mode, follow these steps to select the RJ-45 console media type. If you
configure the RJ-45 console, USB console operation is disabled, and input always remains with the
RJ-45 console.
configure the RJ-45 console, USB console operation is disabled, and input always remains with the
RJ-45 console.
This configuration applies to all switches in a stack.
This example disables the USB console media type and enables the RJ-45 console media type.
Switch# configure terminal
Switch(config)# line console 0
Switch(config-line)# media-type rj45
This configuration terminates any active USB console media type in the stack. A log shows that this
termination has occurred. This example shows that the console on switch 1 reverted to RJ-45.
termination has occurred. This example shows that the console on switch 1 reverted to RJ-45.
*Mar 1 00:25:36.860: %USB_CONSOLE-6-CONFIG_DISABLE: Console media-type USB disabled by
system configuration, media-type reverted to RJ45.
At this point no switches in the stack allow a USB console to have input. A log entry shows when a
console cable is attached. If a USB console cable is connected to switch 2, it is prevented from providing
input.
console cable is attached. If a USB console cable is connected to switch 2, it is prevented from providing
input.
Command
Purpose
Step 1
configure terminal
Enter global configuration mode.
Step 2
line console 0
Configure the console. Enter line configuration mode.
Step 3
media-type rj45
Configure the console media type to always be RJ-45. If you do not
enter this command and both types are connected, the default is USB.
enter this command and both types are connected, the default is USB.
Step 4
end
Return to privileged EXEC mode.
Step 5
show running-configuration
Verify your settings.
Step 6
copy running-config startup-config
(Optional) Save your entries in the configuration file.