Table of Contents
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Cabling Guidelines
Cabling Guidelines
Catalyst GigaStack Gigabit Interface Converter Hardware Installation Guide
1-4
Figure 1-3
GBIC LED Location on a 1000BASE-X Module
Tight en
Screw s
To Activ ate
WS -X2 931 -XL
1
GigaStack GBIC
Table 1-2
describes the switch and 1000BASE-X module GBIC slot LED colors
and port status.
Table 1-2
Switch and 1000BASE-X Module GBIC Slot LEDs
Color
Meaning
Off
No link, or port was administratively shut down.
Green
Link present.
Flashing green
Activity. Port is transmitting or receiving data.
Alternating
Link fault. Error frames can affect connectivity, and errors
green-amber
such as excessive collisions, cyclic redundancy check
(CRC) errors, and alignment and jabber errors are
monitored for a link-fault indication.
Solid amber
Port is blocked by Spanning Tree Protocol (STP) and is not
forwarding data.
Note
Flashing amber
Port is blocked by STP and is sending or receiving packets.
The GigaStack GBIC uses the following Cisco proprietary cables. See
and
Table 1-3
for more information.
GBIC LED
1000 Bas eX
2
After a port is reconfigured, the port LED can
remain amber for up to 30 seconds as STP checks
the switch for possible loops.
Chapter 1
Overview
Figure 1-4
78-6460-04
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Table of Contents
Troubleshooting
