Cisco WS-X4148-FX-MT Datasheet download pdf (Page 45)

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Catalyst 4500 Series Module Installation Guide

78-13267-06

Chapter 1 Module Overview and Specifications

Hot-Swapping Feature

Catalyst 4500 series switches allow you to remove and replace switching modules

without powering down the switch. This feature is known as hot swapping.

When you remove or insert a switching module while the switch is operating, the

system does the following:

1. Scans the backplane for configuration changes.

2. Initializes all newly inserted switching modules, notes any removed modules,

and places them in the administratively shutdown state.

3. Places any previously configured interfaces on the switching module back to

the state they were in when they were removed. Any newly inserted interfaces

are put in the administratively shutdown state, as if they were present (but

unconfigured) at boot time. If you insert a similar switching-module type into

a slot, its ports are configured and brought online up to the port count of the

original switching module.

The system runs diagnostic tests on any new interfaces. If the test passes, the

system is operating normally. If the new switching module is faulty, the system

resumes normal operation but places the new module in the “faulty” state.

If the diagnostic test fails, the system crashes, which usually indicates that the

new switching module has a problem and should be removed.

Port

Status

Indicates individual port status.

Green The port is operational (a signal is detected).

Orange The link has been disabled by software.

Flashing

orange

The link has been disabled due to a hardware failure.

Off No signal is detected.

1. Used on the WS-X4232-L3 Ethernet routing module.

2. LEDs labeled 1 through the number of ports on the switching module are the individual port link

LEDs.

Table 1-3 Switching Module LEDs (continued)

LED Color/State Description

1 2 ... 40 41 42 43 44 45 46

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Cisco WS-X4148-FX-MT Datasheet Page 45