Cisco Catalyst 3560-X Series, Software Configuration Manual

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1-16
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-25303-03
Chapter 1 Configuring Interface Characteristics
Using the Switch USB Ports
SVIs or routed ports to bridge groups with each SVI or routed port assigned to only one bridge
group. All interfaces in the same group belong to the same bridge domain. For more information,
see
Chapter 1, “Configuring Fallback Bridging.”
Note
Switches running the LAN Base feature set support configuring only 16 static routes on SVIs. Fallback
bridging is not supported on the LAN Base feature set.
Using the Switch USB Ports
•
USB Mini-Type B Console Port, page 1-16
• USB Type A Port, page 1-18
USB Mini-Type B Console Port
The switch has two console ports available: a USB mini-Type B console connection and an RJ-45
console port. Console
output appears on devices connected to both ports, but console input is active on
only one port at a time. The USB connector takes precedence over the RJ-45 connector.
Note
Windows PCs require a driver for the USB port. See the hardware installation guide for driver
installation instructions.
Use the supplied USB Type A-to-USB mini-Type B cable to connect a PC or other device to the switch.
The connected device must include a terminal emulation application. When the switch detects a valid
USB connection to a powered-on device that supports host functionality (such as a PC), input from the
RJ-45 console is immediately disabled, and input from the USB console is enabled. Removing the USB
connection immediately reenables input from the RJ-45 console connection. An LED on the switch
shows which console connection is in use.
Console Port Change Logs
At software startup, a log shows whether the USB or the RJ-45 console is active. Each switch in a stack
issues this log. Every switch always first displays the RJ-45 media type.
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.
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: