Cisco CATALYST 2960

12-15
Catalyst 2960 and 2960-S Switches Software Configuration Guide, Release 15.0(1)SE
OL-26520-01
Chapter 12 Configuring Interface Characteristics
Using the Switch USB Ports
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.
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.
*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.
*Mar 1 00:34:27.498: %USB_CONSOLE-6-CONFIG_DISALLOW: Console media-type USB is disallowed
by system configuration, media-type remains RJ45. (switch-stk-2)
This example reverses the previous configuration and immediately activates any USB console that is
connected.
Switch# configure terminal
Switch(config)# line console 0
Switch(config-line)# no media-type rj45
Configuring the USB Inactivity Timeout
The configurable inactivity timeout reactivates the RJ-45 console port if the USB console port is
activated but no input activity occurs on it for a specified time period. When the USB console port is
deactivated due to a timeout, you can restore its operation by disconnecting and reconnecting the USB
cable.
Note The configured inactivity timeout applies to all switches in a stack. However, a timeout on one switch
does not cause a timeout on other switches in the stack.
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.
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.