Cisco Catalyst 2950 Hardware Installation Manual page 70

Front-Panel Description
Table 2-7 Meaning of Port LED Colors in Different Modes for the LRE Switches
Port Mode
STAT (port status)
DUPLX
(half or full duplex)
SPEED
1. On an LRE switch, the LEDs for Uplink Port 1 and Uplink Port 2 correspond either to the SFP module port or to the
10/100/1000 port, depending on which is active.
2. If an LRE switch senses connections to both ports, by default, the switch chooses the fiber-optic connection over the copper
connection.
Catalyst 2950 Desktop Switch Hardware Installation Guide
2-24
Color Meaning
Off No link.
Solid green Link present.
Note
Flashing green Activity. Port is sending 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 A link is established on a nonassigned LRE profile, or a port is
not forwarding.
If a port is not forwarding, it was disabled by management, an
address violation, or STP.
Note
Off Port is operating in half duplex.
Green Port is operating in full duplex.
1 2
10/100/1000 ports
Off Port is operating at 10 Mbps.
Green Port is operating at 100 Mbps.
Flashing green Port is operating at 1000 Mbps.
1 2
SFP modules
Off Port is operating at 10 Mbps
Green Port is operating at 100 Mbps
Flashing green Port is operating at 1000 Mbps
The LRE port LED turns green approximately 30 seconds
after the LRE port detects a connection to an LRE CPE.
After a port is reconfigured, the port LED can remain
amber for up to 30 seconds while STP checks the switch
for possible loops.
Chapter 2 Overview
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