Cisco WS-C2950T-48-SI Hardware Installation Manual page 39

Chapter 1 Overview
Table 1-7
Port Mode
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.
For more information about GBIC LEDs, see your GBIC module documentation.
Figure 1-20
LEDs.
The Catalyst 2950 LRE switch LEDs do not give utilization status.
Note
If all LEDs on a Catalyst 2950-12, 2950-24, 2950C-24, 2950SX-24, or 2950T-24 switch are green (no
amber showing), the switch is using 50 percent or more of the total bandwidth. If the far-right LED is
off, the switch is using more than 25 but less than 50 percent of the total bandwidth, and so on. If only
the far-left LED is green, the switch is using less than 0.0488 percent of the total bandwidth. (See
Figure 1-20
Figure 1-20 Bandwidth Utilization on Catalyst 2950-12 Switches
SYST RPS
STAT UTIL DUPLX SPEED
MODE
OL-6156-01
Meaning of Port LED Colors in Different Modes for the LRE Switches (continued)
Color
10/100/1000 ports
Off
Green
Flashing green Port is operating at 1000 Mbps.
1 2
SFP modules
Off
Green
Flashing green Port is operating at 1000 Mbps
to Figure 1-24 show the bandwidth utilization percentages displayed by the right-most
and Figure 1-21.)
1x 2x 3x 4x 5x 6x 7x 8x 9x 10x
0–0.0487%+
6.25–12.4%+
12.5–24%+
25–49%+
50%+
Meaning
1 2
Port is operating at 10 Mbps.
Port is operating at 100 Mbps.
Port is operating at 10 Mbps
Port is operating at 100 Mbps
10Base-T / 100Base-TX
11x 12x
Catalyst 2950 Switch Hardware Installation Guide
Front-Panel Description
Catalyst 2950
SERIES
1-19