Cisco Catalyst 3750 Hardware Installation Manual page 97
Hide thumbs
Also See for Catalyst 3750:
- Command reference manual (1154 pages) ,
- Software configuration manual (926 pages) ,
- Hardware installation manual (231 pages)
Table of Contents
Advertisement
Chapter 3
Troubleshooting
Table 3-1
Symptom
Poor performance or excessive
errors
OL-6336-06
Common Problems and Solutions
Possible Cause
Duplex autonegotiation mismatch.
Cabling distance exceeded
•
Port statistics show excessive
frame check sequence (FCS),
late-collision, or alignment
errors.
For 10/100 and
•
10/100/1000BASE-T
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.
XENPAK or SFP module
•
cabling guidelines exceeded.
Bad adapter in attached device
Excessive errors found in port
•
statistics.
STP checking for possible
•
loops.
Resolution
See the switch software
configuration guide for
information on identifying
autonegotiation mismatches.
Verify that the autonegotiation
settings are the same at both
ends.
•
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 XENPAK or SFP
•
module documentation for
cabling guidelines.
Run adapter card diagnostic
•
utility.
Wait 30 seconds for the port
LED to turn green.
Catalyst 3750 Switch Hardware Installation Guide
Diagnosing Problems
3-3
Advertisement
Chapters
Table of Contents
