Cisco WS-C2950-12 Hardware Installation Manual page 41
Desktop switch
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Also See for WS-C2950-12:
- Product manual (20 pages) ,
- Migration manual (25 pages) ,
- Software manual (368 pages)
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Chapter 1
Overview
Table 1-5
Meaning of Port LED Colors in Different Modes
Port Mode
STAT (port status)
UTIL (utilization)
DUPLX
(half or full duplex) Green
78-11157-03
When you change the port mode, the meanings of the port LED colors change.
Table 1-5
explains how to interpret these colors.
Color
Meaning
Off
No link.
Solid green
Link present.
Flashing green Activity. Port is transmitting or receiving data.
Alternating
Link fault. Error frames can affect connectivity, and errors such
green-amber
as excessive collisions, CRC errors, and alignment and jabber
errors are monitored for a link-fault indication.
Solid amber
Port is not forwarding. Port was disabled by management, an
address violation, or Spanning Tree Protocol (STP).
Note
Green
The current backplane utilization that is displayed over the
amber LED background on a logarithmic scale.
Amber
The maximum backplane utilization since the switch was
powered on.
Green and
See
Figure 1-16
amber
Note
Off
Port is operating in half duplex.
Port is operating in full duplex.
After a port is reconfigured, the port LED can remain
amber for up to 30 seconds while STP checks the switch
for possible loops.
to
Figure 1-19
If the current utilization exceeds the maximum
utilization, the maximum utilization is automatically
updated.
Catalyst 2950 Desktop Switch Hardware Installation Guide
Front-Panel Description
for details.
1-17
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Table of Contents
Troubleshooting
