Chapter 2 Fault Descriptions

Radio Interface Faults

Table 2-2

Radio Interface Faults (continued)

 

 

 

 

 

 

Fault Description

Explanation

Related Setting

Recommended Action

 

 

 

 

Retry Count rate is

The retry count rate alarm

Manage Fault

Verify the threshold settings. There

Degraded number per

indicates if the wireless medium is

Settings >

could be too many clients or access

minute

 

congested. The alarm will be raised

Radio-802.11x

points located near the radio

 

 

if the MSDU retransmission rate

Thresholds > Max

interface for which fault is raised.

Retry Count rate is

per minute is greater than the

Retry Count

Clear the alarm and increase the

Overloaded number per

minute

 

specified threshold. For example,

 

threshold, or reduce the polling time.

 

if the overloaded state is set to

 

 

 

 

 

 

 

 

greater than 90, a fault will be

 

 

 

 

raised for an interface that has

 

 

 

 

more than 90 MSDUs that required

 

 

 

 

retransmission in a minute.

 

 

 

 

When the fault is cleared, the

 

 

 

 

following message displays: Retry

 

 

 

 

Count rate is OK.

 

 

 

 

 

 

 

RF bandwidth

 

The fault threshold set for the

Manage Fault

Verify that the fault threshold is set

utilization is Degraded

degraded state has been exceeded.

Settings >

correctly.

(utilization %)

 

When the fault is cleared, the

Radio-802.11x

If the threshold is set correctly,

 

 

Thresholds > RF Port

 

 

following message displays: RF

review your network to determine the

 

 

bandwidth utilization is OK

Utilization

action necessary to clear the fault

 

 

 

 

 

 

 

condition.

RF bandwidth

 

The fault threshold set for the

 

 

 

 

utilization is

 

overloaded state has been

 

 

Overloaded

 

exceeded.

 

 

(utilization %)

 

When the fault is cleared, the

 

 

 

 

 

 

 

 

following message displays: RF

 

 

 

 

bandwidth utilization is OK

 

 

 

 

 

 

 

Serving and

 

For Self Healing to work, all radios

Not applicable.

Enable Radio Monitoring for both

non-serving channel

on the floor must be configured

 

serving and non-serving channels.

Radio Monitoring must

with Radio Monitoring. The fault

 

Or, use the Location Manager tool,

be enabled

 

will indicate which radios need to

 

 

 

Verify RM Capability.

 

 

be configured with both serving

 

 

 

 

 

 

 

and non serving radio monitoring.

 

 

 

 

When the fault is cleared, the

 

 

 

 

following message displays:

 

 

 

 

Qualifies for Self Healing

 

 

 

 

Monitoring.

 

 

 

 

 

 

 

FAQ and Troubleshooting Guide for the CiscoWorks Wireless LAN Solution Engine

 

OL-8376-01

2-13

 

 

 

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Cisco Systems OL-8376-01 manual Verify RM Capability