Cisco Catalyst 2900 Series Manuel d'installation du matériel - Page 14
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LEDs
LEDs
Cabling Guidelines
10/100 Module
Catalyst 2900 Series XL Modules Hardware Installation Guide
1-8
An LED above or next to each port reflects the port status, as described in
Table 1-3.
Table 1-3
Port LEDs
Color
Meaning
Off
No link.
Green
Link present.
Flashing
Activity; port is transmitting or receiving data.
green
Alternating
The port is experiencing error frames that can affect
green-amber
connectivity. The port monitors errors such as excessive
collisions, cyclic redundancy check (CRC) errors, and alignment
errors.
Amber
Port is not forwarding because
•
It is initializing
It was disabled by management or by an address violation
•
It was blocked by Spanning Tree Protocol
•
This section describes the cabling guidelines you need to consider when planning
your network.
The 10/100 ports require Category 5 UTP cabling. Attached devices must be
within 100 meters of the port and be either 10BaseT or 100BaseTX compatible.
Chapter 1
Overview
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