Cisco 2431 - IAD Router Hardware Installation Guide

3-2
Cisco ME 2400 Ethernet Access Switch Hardware Installation Guide
OL-7678-01
Chapter 3 Troubleshooting
Diagnosing Problems
Table 3-1 describes how to detect and resolve these problems.
Table 3-1 Common Problems and Their Solutions
Symptom Possible Cause Resolution
Poor performance or excessive
errors
Duplex autonegotiation mismatch. See the switch software
configuration guide for
information on identifying
autonegotiation mismatches.
Cabling distance exceeded
• Port statistics show excessive
frame check sequence (FCS),
late-collision, or alignment
errors.
• For 10/100BASE-TX
connections:
– The distance between the
port and the attached device
exceeds 328 feet (100
meters).
– If the switch is attached to a
repeater, the total distance
between the two end
stations exceeds the cabling
guidelines.
• For SFP module port
connections:
– The distance between the
SFP module port and the
attached device exceeds the
SFP module cabling
guidelines.
• See the switch software
configuration guide for
information on displaying
port statistics.
• Reduce the cable length to
within the recommended
distances.
• See your repeater
documentation for cabling
guidelines.
• See your SFP module
documentation for cabling
guidelines.

Cisco 2431 - IAD Router Specifications

General

Brand	Cisco
Model	2431 - IAD Router
Category	Network Hardware
Language	English