Cisco 2960-48PST-L Hardware Installation Guide - Page 92
Symptom, Possible Cause, Resolution, Cabling distance exceeded., Bad adapter in attached device.
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Diagnosing Problems Chapter 3 Troubleshooting Table 3-2 Common Problems and Their Solutions Symptom Poor Performance or Excessive Errors. Possible Cause Resolution Duplex autonegotiation mismatch. Refer to the Catalyst 2900 Series XL and Catalyst 3500 Series XL 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 100BASE-TX connections: • Refer to the Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide for information on displaying port statistics. • 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 100BASE-T cabling guidelines. • Reduce the cable length to within the recommended distances. Refer to your 100BASE-T repeater documentation for cabling guidelines. • For 10BASE-T connections: The distance between the port and the attached device exceeds 328 feet (100 meters). Bad adapter in attached device. • Excessive errors found in port statistics. • STP checking for possible loops. • Reduce the cable length to within the recommended distances. • Run adapter card diagnostic utility. • Wait 30 seconds for LED to turn green. Catalyst 2900 Series XL Hardware Installation Guide 3-4 78-6461-04