Resetting The Switch - Cisco Catalyst IE3400 Heavy Duty Series Installation Manual

Troubleshooting
• Manually set the speed and duplex parameters for the interfaces on both ends of the connection.
• If a remote device does not autonegotiate, use the same duplex settings on the two ports. The speed
Autonegotiation and Network Interface Cards
Problems sometimes occur between the switch and third-party network interface cards (NICs). By default,
the switch ports and interfaces autonegotiate. Laptops or other devices are commonly set to autonegotiate,
yet sometimes issues occur.
To troubleshoot autonegotiation problems, try manually setting both sides of the connection to the same speed
and duplex mode. If this does not solve the problem, there could be a problem with the firmware or software
on the NIC. You might resolve this by upgrading the NIC driver to the latest version.
Cabling Distance
If the port statistics show excessive FCS, late-collision, or alignment errors, verify that the cable distance
from the switch to the connected device meets the recommended guidelines.

Resetting the Switch

Resetting the switch deletes the configuration and reboots the switch.
Reasons why you might want to reset the switch to the factory default settings include:
• You installed the switch in your network and cannot connect to it because it is assigned an unknown IP
• You want to reset the password on the switch.
Caution
If you press the Express Setup button when you power on, the automatic boot sequence stops and the switch
enters bootloader mode.
To reset the switch:
Procedure
Step 1
Press and hold the Express Setup button for 15 seconds or more. The switch reboots. The system led turns
green and the expres setup led starts to blink green.
Step 2
Press the Express Setup button again for 1-3 seconds. LED for port 1/1 blinks green.
The switch now behaves like a factory-default configured switch. Go to section above on Express Setup to
complete re-install.
parameter adjusts itself even if the connected port does not autonegotiate.
address.
Cisco Catalyst IE3400 Heavy Duty Series Hardware Installation Guide
Autonegotiation and Network Interface Cards
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