Table 2-2 Radio Interface Faults
Fault Description
|
Type
|
Explanation
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Related Setting
|
Recommended Action
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802.11-B/G Interference Detected
- or -
802.11-A Interference Detected
|
IOS
|
The WLSE detected a non-802.11 interference.
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Manage Network-Wide Settings > Interference Detection
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Look at the fault description to determine which AP reported the interference, then take corrective action by removing the interference source.
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Ad-hoc network creation detected
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Non-IOS and IOS
|
An ad-hoc network was formed by some wireless clients. One of your infrastructure APs or other clients sent this information to the WLSE via your WDS setup.
|
Manage Network-Wide Settings > Ad-hoc Network Detection
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If the information is available, the WLSE will show the clients that are participating in the network (and that it can detect) in the fault details page. Use the Location Manager to find these APs and verify that this is not a security issue.
|
AP is in a Degraded state number associated clients
|
IOS
|
The fault threshold set for the degraded state has been exceeded.
When this fault is cleared, the following message displays: AP is in OK state.
|
Manage Fault Settings > Radio-802.11x Thresholds > Associated Clients (IOS)
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
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AP is in an Overloaded state number associated clients
|
Non-IOS and IOS
|
The fault threshold set for the overloaded state has been exceeded.
When this fault is cleared, the following message displays: AP is in OK state.
|
Manage Fault Settings > Thresholds > Access Point > Associated Clients
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Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
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Auto Resite Survey Performance Degradations
|
IOS only
|
There was a 20% difference in the base and current performance values.
The fault will clear when there are no longer any buildings or any floors with 20% differences in the performance values.
|
Network-Wide Settings > Auto Re-Site Survey
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Select the document with the eyeglasses in the detail view of the fault condition. A list of all buildings and floors that have performance degradations is displayed.
First, check the details for the floor and if needed, run Radio Manager Assisted Configuration. Then select Auto Re-Site Survey to set the new base values.
|
Broadcast SSID is enabled.
|
Non-IOS and IOS
|
The broadcast mode for the SSID on the interface has been disabled.
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Manage Fault Settings > Radio-802.11x Policies > Broadcast Disabled
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Log in to the access point and disable the broadcast mode.
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Broadcast is enabled for Radio-x SSID ssid fault.
|
IOS
|
An SSID, which you do not want broadcast, is being broadcast.
When this fault is cleared, the following message displays: Broadcast is disabled for Radio-x SSID ssid fault.
|
Manage Fault Settings > Radio-802.11x Policies > Broadcast SSID (IOS)
|
Log in to the access point and make sure that the that the SSID, which is in WLSE's "Do not Broadcast SSID" list is not selected for Broadcast on the access point.
|
Number of CCMP Replay Discarded is degraded.
|
IOS
|
The fault threshold set for the degraded state has been exceeded.
When the fault is cleared, the following message displays: Number of CCMP Replay Discarded is OK.
|
Manage Fault Settings > Radio-802.11x Policies > CCMP Replay Discarded (IOS)
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Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Number of CCMP Replay Discarded is overloaded.
|
The fault threshold set for the overloaded state has been exceeded.
When the fault is cleared, the following message displays: Number of CCMP Replay Discarded is OK.
|
Client association rate is Degraded number per minute
|
Non-IOS and IOS
|
The fault threshold set for the degraded state has been exceeded.
|
Manage Fault Settings > Radio-802.11x Thresholds > Association Rate
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Client association rate is Overloaded number per minute
|
Non-IOS and IOS
|
The fault threshold set for the overloaded state has been exceeded.
|
Manage Fault Settings > Radio-802.11x Thresholds > Association Rate
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Client authentication error rate is Degraded number per minute
|
Non-IOS and IOS
|
The fault threshold set for the degraded state has been exceeded.
|
Manage Fault Settings > Radio-802.11x Thresholds > Authentication Error Rate
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Client authentication error rate is Overloaded number per minute
|
Non-IOS and IOS
|
The fault threshold set for the overloaded state has been exceeded.
When this fault is cleared, the following message displays: Client association error rate is OK.
|
Manage Fault Settings > Radio-802.11x Thresholds > Authentication Error Rate
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Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
EAP is disabled
|
Non-IOS and IOS
|
The EAP per SSID has been disabled.
When this fault is cleared, the following message displays: EAP is enabled
|
Manage Fault Settings > Radio-802.11x Policies > EAP Enforced for Cisco Supplicant/ Non-Cisco Supplicant/ Mixed-Cisco Supplicant
|
Log in to the access point and enable the Network EAP and Open authentication.
|
Infrastructure SSID policy violation
|
IOS
|
The infrastructure SSID does not match the infrastructure SSID set on the access point.
When this fault is cleared, the following message displays: Infrastructure SSID is valid .
|
Manage Fault Settings > Radio-802.11x Policies > Infrastructure SSID (IOS)
|
Log in to the access point and make sure the WLSE's Infrastructure SSID matches the access point infrastructure SSID
|
Packet Error is in Degraded state (error rate %)
|
Non-IOS and IOS
|
The fault threshold set for the degraded state has been exceeded.
When this fault is cleared, the following message displays: Packet Error is in OK state.
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port Packet Errors
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Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
The radio interfaces on the devices may be very under utilized, which can trigger the degradation problem.
For example, if a total of three packets are sent over the radio, and two of them are corrupt, the percentage would be 2/3 = 66%, and could trigger the alarm.
|
Remove the alarm from the profile associated with these devices.
|
Packet Error is in is in Overloaded state (error rate %)
|
Non-IOS and IOS
|
The fault threshold set for the overloaded state has been exceeded.
When this fault is cleared, the following message displays: Packet Error is in OK state.
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port Packet Errors
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Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Port is administratively set to down
|
Non-IOS and IOS
|
The port has been set to Down by the administrator.
When this fault is cleared, the following message displays: Port is up
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port Status
|
There is no action necessary; the port has been deliberately shut down.
|
Port is down
|
Non-IOS and IOS
|
The port is operationally down.
When this fault is cleared, the following message displays: Port is up
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port AdminStatus
|
Check the device to determine why the port is down.
If you have added or removed an interface from an access point, the WLSE might generate an erroneous fault. See What are the results of adding or removing an interface from an access point?.
|
PSPF is disabled
|
IOS
|
The PSPF port has been disabled.
PSPF (Publicly Secure Packet Forwarding) is a feature that prevents client devices associated to a bridge or access point from inadvertently sharing files with other client devices on the wireless network.
When the fault is cleared, the following message displays: The PSPF is enabled.
|
Manage Fault Settings > Access Point/Bridge Policies > PSPF Enabled (IOS)
|
Log in to the access point and enable the PSPF setting.
|
Radio (macaddress(es)) appears down - triggered self healing
|
IOS
|
The indicated radio appeared down on this AP, so other APs were modified to maintain coverage.
After self healing has been applied to the other AP, this fault indicates the AP that had the failure.
|
Not applicable.
|
Select the document with the eyeglasses in the detail view of the fault condition. A list of the APs that were modified with the old and new power settings is displayed.
Check the radio to determine why it is down. Then either replace it or clear the fault and rerun AP Radio Scan. Or if you like the new setup, just clear the fault.
|
Retry Count rate is Degraded number per minute
|
Non-IOS and IOS
|
The fault threshold set for the degraded state has been exceeded.
When the fault is cleared, the following message displays: Retry Count rate is OK
|
Manage Fault Settings > Radio-802.11x Thresholds > Max Retry Count
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Retry Count rate is Overloaded number per minute
|
Non-IOS and IOS
|
The fault threshold set for the overloaded state has been exceeded.
When the fault is cleared, the following message displays: Retry Count rate is OK
|
Manage Fault Settings > Radio-802.11x Thresholds > Max Retry Count
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
RF bandwidth utilization is Degraded (utilization %)
|
Non-IOS and IOS
|
The fault threshold set for the degraded state has been exceeded.
When the fault is cleared, the following message displays: RF bandwidth utilization is OK
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port Utilization
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
RF bandwidth utilization is Overloaded (utilization %)
|
Non-IOS and IOS
|
The fault threshold set for the overloaded state has been exceeded.
When the fault is cleared, the following message displays: RF bandwidth utilization is OK
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port Utilization
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Self Healing finished with errors: message
|
IOS
|
An error occurred while attempting self healing. For example, a power change cannot be applied to an AP.
1) The community strings for the device are wrong
2) AP is down
3) Wrong configuration set on the AP
|
Not applicable.
|
Determine the action necessary to clear the fault condition.
|
Self Healing In Progress
|
IOS
|
The WLSE determined that a radio was down.
When self healing is complete, a fault is applied against the AP that had the failure.
|
Not applicable.
|
There is no action necessary; self healing is attempting to adjust the power on other radios on the floor to maintain coverage.
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Serving and non-serving channel Radio Monitoring must be enabled.
|
IOS
|
Radio Monitoring is not enabled for serving and non-serving channels.
When the fault is cleared, the following message displays: Qualifies for Self Healing Monitoring.
|
Not applicable.
|
Enable Radio Monitoring for both serving and non-serving channels.
|
Number of TKIP replay errors is degraded.
|
IOS
|
The fault threshold set for the degraded state has been exceeded.
When the fault is cleared, the following message displays: Number of TKIP replay errors is OK.
|
Manage Fault Settings > Radio-802.11x Thresholds >TKIP Replay (IOS)
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Number of TKIP replay errors is overloaded.
|
The fault threshold set for the overloaded state has been exceeded.
When the fault is cleared, the following message displays: Number of TKIP replay errors is OK.
|
Number of TKIP counter measure is degraded.
|
IOS
|
The fault threshold set for the degraded state has been exceeded.
When the fault is cleared, the following message displays: Number of TKIP replay errors is OK.
|
Manage Fault Settings > Radio-802.11x Thresholds >TKIP Counter Measure (IOS)
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
|
Number of TKIP counter measure is overloaded.
|
The fault threshold set for the overloaded state has been exceeded.
When the fault is cleared, the following message displays: Number of TKIP replay errors is OK.
|
Unregistered Client(s) present
|
IOS
|
One or more unregistered clients are present in the wireless network and are unsuccessfully attempting to authenticate with the APs. This fault occurs when, during the observation interval, the number of failed attempts crosses the threshold defined by the administrator.
This fault is cleared when no registration attempts are detected during the observation interval (the client leaves the wireless network or is not seen or reported by any Scanning APs).
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Faults > Manage Network-Wide Settings > Scanning AP.
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Set the priority of the fault to be generated and the threshold for the failed authentication attempts by the client.
Make a physical check near the scanning AP that reported this fault to see if there are any rogue clients.
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WEP Error is in Degraded state (error rate %)
|
Non-IOS and IOS
|
The fault threshold set for the degraded state has been exceeded.
When this fault has been cleared, the following message displays: WEP Error is in OK state
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port WEP Errors
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
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WEP Error is in Overloaded state (error rate %)
|
Non-IOS and IOS
|
The fault threshold set for the overloaded state has been exceeded.
When this fault has been cleared, the following message displays: WEP Error is in OK state
|
Manage Fault Settings > Radio-802.11x Thresholds > RF Port WEP Errors
|
Verify that the fault threshold is set correctly.
If the threshold is set correctly, review your network to determine the action necessary to clear the fault condition.
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WEP is disabled
|
Non-IOS and IOS
|
WEP has been disabled.
When this fault has been cleared, the following message displays: WEP is enabled.
|
Manage Fault Settings > Radio-802.11x Policies > WEP Enforced (Non-IOS)
|
Log in to the access point and enable WEP.
|
WEP key length policy violation
|
Non-IOS and IOS
|
The WEP key length setting has been violated.
When this fault has been cleared, the following message displays: WEP key length is OK.
|
Manage Fault Settings > Radio-802.11x Policies > WEP Key Length
|
Check the WEP key settings on the interface to make sure they match the WLSE settings.
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