Cisco Catalyst WS-C2924-XL Hardware Installation Manual page 36

Front-Panel Description
Table 1-6 Meanings of Port Status LED Colors for Different Modes on Catalyst 2912 XL, 2924C XL,
2924 XL, 2924MF XL, 2924M XL, and 2924M XL DC Switches
Port Mode Port LED Color
STAT Off
(port status)
Solid green
Flashing green
Alternating
green-amber
Solid amber
UTL Green
(utilization)
FDUP Off
Green
(port duplex)
100 Off
(port speed)
Green
Catalyst 2900 Series XL Hardware Installation Guide
1-16
Meaning
No link.
Link present.
Activity. Port is transmitting or receiving data.
Link fault. Error frames can affect connectivity, and errors such as
excessive collisions, CRC errors, and alignment and jabber errors
are monitored for a link-fault indication.
Port is not forwarding. Port was disabled by management or an
address violation or was blocked by Spanning Tree Protocol (STP).
After a port is reconfigured, the port LED can remain
Note
amber for up to 30 seconds as STP checks the switch for
possible loops.
The LEDs display backplane utilization on a logarithmic scale.
If all port LEDs are green, the switch is using 50 percent or more
of its total bandwidth capacity. If the right-most LED is amber, the
switch is using less than 50 percent of its total bandwidth. If the
LED to the left of the right-most LED is amber, the switch is using
less than 25 percent of its total capacity, and so on.
See Figure 1-8 for details.
Port is operating in half duplex.
Port is operating in full duplex.
Port is operating at 10 Mbps.
Port is operating at 100 Mbps.
Chapter 1 Product Overview
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