Interface Threshold Violation

Hi Guys,
I have 8 access points and a 5508 series WLC. I am getting the below alerts
Message: Interference threshold violation reported by '802.11b/g/n' interface of AP 'KPAP0000.f4a6', connected to Controller '10.69.186.21'.
Message: Interference changed to acceptable level on '802.11b/g/n' interface of AP 'KPAP0000.1b40', connected to Controller '10.69.186.21'.
On seraching the forum, i found the below details:
Recommended Actions If the interference threshold is configured to be too low, you may need to readjust it to a more optimum value.
Investigate interference sources such as other 802.11 devices in the vicinity of this radio interface
Im my current configuration i have threshold under 802.11a>RRM>general
Profile threshold for traps - 10% [which is the default]
Just wondering is that the value i need to change. Is there any standard optimal value. Or do i need to find out using trail and error.
Thanks

It really depends. You can adjust them until they go away or your fine with the amount of alerts you receive. So the one thing that is mentioned is interference. Have you checked for interferes? Do you have neighboring access points on the 2.4ghz? All these things have an affect in your RF and how these alerts are being generated. So I would try to identify any 2.4 ghz interferes and then play with the threshold value.
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Similar Messages

Load threshold violation - gap in voice audio

Hello,
I have a lot of 7925 Phones, two 3750 with integrated WLC (6.0.188).
The Costumer says that he has a lot of gaps in voice audio. I have testet it and can't recognize any gap.
I said to the customer that he has to write down the time when there are any problems with the audio stream.
I could recognize that there is a minor alarm in the wcs at the same time when the problems occur.
I could also see in the log of the ap that there is an reset of the a radio after the alarm is generated
The WCS Error message is
Load threshold violation reported by '802.11a' interface of AP 'AP-DE-HQ-033', connected to Controller.....
What could be the reason of these error message? Wich kind of treshold is meant and where i can configure it.
I hope someone can help me

Sir,
The load threshold violation is generated because of client count on a given AP, I am not aware of any bugs or features that would cause this to occurr in correctly. basically this alarm is triggered when the client count exceeds the preset threshold value which I believe is 12. You can find this threshold under Wireless> 802.11a> RRM>General (on WLC 6.0.118.0 code, it'll be in the same general area on 4.2; Don't confuse it with the coverage hole threshold which is usually 3). Definitely check the client counts on the access points have the issues.
If you are violating this threshold there are a couple of options: 1) raise the threshold to a higher value; the downside to this is if you get too many clients on a single AP it can have adverse effects on all the clients. 2) add more access points to lower the possibility of all clients being on 1 AP..
Hope this helps,
Kayle

What does Load threshold violation reported by '802.11b/g' mean?

I am assuming it is too many laptops on an access point. This environment has 24 laptops on a cart used in 1 room so shouldn't the controler divy them up between the 2 antennas in the 1142 which is sitting right above them?
thanks
Gary

Hi Gary,
Just to add a note here to the good info from my friend Leo (+5 ponts L-Man)
You are most correct about the nature of this alarm;
WCS Message AP ''{0}'', interface ''{1}." Load threshold violated.
Symptoms A radio interface of an access point is reporting that the client load has
crossed a configured threshold.
WCS Severity Minor.
Probable Causes There are too many clients associated with this radio interface.
Recommended Actions Verify the client count on this radio interface. If the threshold for this
trap is too low, you may need to readjust it.
Add new capacity to the physical location if the client count is a frequent
issue on this radio.
As Leo noted, the dual antennas in "Diversity" mode won't help to mitigate
this issue. Only adding another AP can help load balance the client load
Cheers!
Rob
Please support CSC Helps Haiti
https://supportforums.cisco.com/docs/DOC-8895
https://supportforums.cisco.com/docs/DOC-8727

Retrive load threshold violation reports using NCS 1.0.2.29?

Hello!
I would like to retrive some specific reports from the NCS regarding load threshold violation on some specific 1142N accesspoints. Using the alarm browser don´t help me that much because you cant see the history of how many alarms each AP has generated, only cleared alarms. The reason to this is that I would like to see if there is any issues in different system campus with APs that report this alarm.
Most of the APs are associated to maps. The NCS version that I run is 1.0.2.29. WLCs are running 7.0.220.0.
If there is any other way to see this information I´m happy to get that information.
Thanks!
/Johan Jongen

Hello!
I would like to retrive some specific reports from the NCS regarding load threshold violation on some specific 1142N accesspoints. Using the alarm browser don´t help me that much because you cant see the history of how many alarms each AP has generated, only cleared alarms. The reason to this is that I would like to see if there is any issues in different system campus with APs that report this alarm.
Most of the APs are associated to maps. The NCS version that I run is 1.0.2.29. WLCs are running 7.0.220.0.
If there is any other way to see this information I´m happy to get that information.
Thanks!
/Johan Jongen

Load threshold violation 802.11 a/n

I keep getting these minor alarms "Load threshold violation 802.11.a/n". Where are these thresholds defined? I have Prime 2.1 and 5508 controllers 7.6

John,
You can change the alert threshold for each band via Wireless > 802.11(a/n/ac) or 802.11(b/g/n) > RRM > General. You will see Profile Threshold For Traps and there you can increase or decrease the number of clients associated to a radio that will trigger the alarm.
You can also do this through the CLI with:
config rf-profile client-trap-threshold NUMBER
Hope that helps!
Randy

HUM Threshold violation

Hi
Can someone explain the following for me:
I've configured the threshold on HUM for availability, and now am getting this message: what does this message mean?
CiscoWorks HUM: Critical: Device Availability Threshold Violation: Device Availability (smp-it-ni-acc)
Host Name: tzmapgnulms
smp-it-ni-acc has violated the 0.0 Device Availability threshold
Details:
MIB object name: sysUpTime
Instance Name: Device Availability
Number of violatons: 1
Threshold condition: var == 0.0
Violation value: 0.00
Severity: Critical
Date and Time: Wed, Nov 11 2009, 07:36:03 CAT

It looks as though HUM could not poll sysUpTime for one cycle, and this triggered the threshold. That is, the device may not be pollable via SNMP.

Load threshold violation

I see many "Load threshold violation" messages in NCS server. any idea why and how can i fix it?

Thresholds are usually set on the WLC. Its up to you to leave it at default or you can adjust that.
Sent from Cisco Technical Support iPad App

Dropped clients and Load threshold violation

Can someone tell me if a load threshold violation can lead to dropped clients. Is this error message just a notice or does the controller drop clients after reaching the threshold value.
Thanks
Chris

Can you do a show wlan for me and post the results.
Do you have load balance enabled ?
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

Continual coverage threshold violation

Hi,
I seem to get these messages from an 1130 LW, using a 4400 as the controller. Exactly every 20 minutes for the wholes days. Im around 10 meters away from the AP, and every now and then I get a low signal, then the wireless disconnects and reconnects.
AP 'comp-1130', interface '802.11b/g' on Controller '10.*.*.*'. Coverage threshold of 'unknown' violated. Total no of clients is 'unknown' and no of failed clients is 'unknown'.
The AP is between two other AP's. The other two have no problems. In the area, there are several 7920's and a couple other laptops that use the AP's continually.
Thanks

Hello.
Try to replace SFP module and fiber cable.
Please provide "show int trans de" from both sides.
What is the length (and type) of fiber cable you are using?

Cisco router interface threshold

Hello,
I have a question about getting threshold information out of a specific interface. I have a customer with DSL on a cisco 887 router.
This customer has 2 different pvc's on the ATM0 interface, 2 dialer's (1 for voice, one for data) 2 vlan's (1 for voice, one for data).
What I would like is that the cisco router wil send me a message that only the voice dialer or voice vlan has exceeded it's threshold limit.
I can configure this with the "rmon alarm" command, but then it isn't specific for the voice dialer, it gives me info on both the dialers.
I also tried it with SNMP traps, but this isn't "real-time"
Does anyone know if there is a different solution to solve this?

Sorry, small mistake :-)
Heres my configuration:
event manager applet int-rate-test
event interface name Dialer1 parameter receive_rate_bps entry-op gt entry-val 110000 entry-type rate exit-op lt exit-val 50000 exit-type rate average-factor 1 poll-interval 1
snmp-server community G***** RO
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps vrrp
snmp-server enable traps call-home message-send-fail server-fail
snmp-server enable traps tty
snmp-server enable traps ospf state-change
snmp-server enable traps ospf errors
snmp-server enable traps ospf retransmit
snmp-server enable traps ospf lsa
snmp-server enable traps ospf cisco-specific state-change nssa-trans-change
snmp-server enable traps ospf cisco-specific state-change shamlink interface
snmp-server enable traps ospf cisco-specific state-change shamlink neighbor
snmp-server enable traps ospf cisco-specific errors
snmp-server enable traps ospf cisco-specific retransmit
snmp-server enable traps ospf cisco-specific lsa
snmp-server enable traps license
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snmp-server enable traps flash insertion removal
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snmp-server enable traps isdn call-information
snmp-server enable traps isdn layer2
snmp-server enable traps isdn chan-not-avail
snmp-server enable traps isdn ietf
snmp-server enable traps mac-notification
snmp-server enable traps energywise
snmp-server enable traps cef resource-failure peer-state-change peer-fib-state-change inconsistency
snmp-server enable traps aaa_server
snmp-server enable traps atm subif
snmp-server enable traps bfd
snmp-server enable traps memory bufferpeak
snmp-server enable traps config-copy
snmp-server enable traps config
snmp-server enable traps config-ctid
snmp-server enable traps entity
snmp-server enable traps fru-ctrl
snmp-server enable traps resource-policy
snmp-server enable traps event-manager
snmp-server enable traps hsrp
snmp-server enable traps ipmulticast
snmp-server enable traps msdp
snmp-server enable traps mvpn
snmp-server enable traps cpu threshold
snmp-server enable traps ipsla
snmp-server enable traps syslog
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snmp-server enable traps nhrp nhc
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snmp-server enable traps isakmp policy add
snmp-server enable traps isakmp policy delete
snmp-server enable traps isakmp tunnel start
snmp-server enable traps isakmp tunnel stop
snmp-server enable traps ipsec cryptomap add
snmp-server enable traps ipsec cryptomap delete
snmp-server enable traps ipsec cryptomap attach
snmp-server enable traps ipsec cryptomap detach
snmp-server enable traps ipsec tunnel start
snmp-server enable traps ipsec tunnel stop
snmp-server enable traps ipsec too-many-sas
snmp-server enable traps vrfmib vrf-up vrf-down vnet-trunk-up vnet-trunk-down
snmp-server host *.*.*.30 G****
interface Dialer1
description tbv Internet KPN-lijn
ip address negotiated
ip nat outside
no ip virtual-reassembly in
encapsulation ppp
dialer pool 1
dialer-group 1
ppp authentication chap pap callin
ppp chap hostname test-vdsl-inet
ppp chap password 7 051F031C3501580D0A095A1B050910
ppp pap sent-username test-vdsl-inet password 7 111D1C16035F1D081726662D263621
no cdp enable
When I download something from the internet it only shows the interface bandwidth usage stats every 5min. I'm not getting any event messages to my Zenoss server that a threshold has been reached or anything like that.
I have attached a file with the results.

Threshold Violation Error

hi All,
I am getting an error as below on a 3750V2 connecting to a 6509 WS-X6724-SFP port. I am getting Input errors on interface at 3750v2 side.
3750V2# sh logg
Apr 14 09:42:57: %SFF8472-5-THRESHOLD_VIOLATION: Gi1/0/1: Rx power low warning; Operating value: -17.6 dBm, Threshold value: -17.0 dBm
Input Error O/p is as below;
3750v2#sh int gi1/0/1 | in CRC --> connects to first core switch
7130 input errors, 153 CRC, 0 frame, 0 overrun, 0 ignored
3750v2#sh int gi2/0/1 | in CRC --> connects to second core switch
18418 input errors, 611 CRC, 0 frame, 0 overrun, 0 ignored
Please let me know if this error or alert is a cause of concern.

Hi ,
This could be because of ::
Avago SR erroneously reports THRESHOLD_VIOLATION
CSCsz81516
If you are concern about the errors, you might need to open a TAC case to get the faulty module replaced.
Thanks-
Afroz
***Ratings Encourages Contributors ****

Threshold violation on Portchannel

I created port channel between 3750 ME and 3750-X, using MM fiber, but getting an error message
%SFF8472-5-THRESHOLD_VIOLATION: Gi2/1/1: Rx power high warning; Operating value: -1.6 dBm, Threshold value: -3.0 dBm.
*Mar 1 00:12:11.318: %SFF8472-5-THRESHOLD_VIOLATION: Gi1/1/1: Rx power high warning; Operating value: -1.5 dBm, Threshold value: -3.0 dBm. (NWP-TEST-3750-X-1)
*Mar 1 00:12:15.135: %SFF8472-5-THRESHOLD_VIOLATION: Gi1/1/1: Rx power high war
Please suggest how can I fix this
Thanks

Hello.
Try to replace SFP module and fiber cable.
Please provide "show int trans de" from both sides.
What is the length (and type) of fiber cable you are using?

Load threshold violation reported

I need a WCS report that will actually give me the top n Wireless Access points that have too many clients trying to authenticte to them.
We have some serious capacity issue in meeting rooms but we need a ball park figure of how many WAPs might be affected.
I know I can interogate the WCS to drill down and find out that WAPs are exceeding their threshold I just need to have a decent report generated.
I have searched the reports from WCS 6.0.202.0 and cannot seem to find anything that suits.
Many thanks for your help.

This is interesting not to find it easily.
I spent an hour looking for such thing but it does not seem to be found direclty on WCS (I am using 7.x).
There is a template in Device -> Busiest APs. this shows busiest 5 APs but it does not seem to show them in term of number of users. it shows them in tx and rx utilization.
There should be a template under device also that list APs and there should be an option to show the clients per AP.
You can do it the other way (which is stupid to do it this way unless really needed) is to do a report to list all clients then you may open the CSV file via MS excel and filter per AP.
Cisco should really add support for this. It seems they stupidly forgot to add "client count" field in AP summary (or wherever in AP reports where showing client count is valid).
Sorry for not being able to help much

Intermittant radio interface down on 1130 APs

I am having unified wireless installation, with WiSM on 6500 at central site and around 90 nos of 1130 APs located at remote locations ( over WAN) as well as some APs locate in the same location.
The APs are configured in WCS, using default AP template.
Alsomot all APs are showing minor alarms saying " radio interface threshold violated".
In addition, a major alarm posted frequently on WCS saying "radion interface down".
Cleints are complaining that they are loosing connectkion momentarily but connected again automatically wo WLAN. But they will have to log in to application programs in such cases.
a.Does anybody have similar experience, and
b. What are the best settings for 1130 APs trhat we have to do explicitly in setting up the WCS template ?
Thanks ,

Might be due to interference and the fact that RRM is enalbled and the ap's are changing channels causing the radios to shut down temporarily. Either set the channel or try to change the threshold.
Here is the error info:
http://www.cisco.com/en/US/docs/wireless/wcs/4.2/configuration/guide/wcsevent.html#wp1139158

Cisco HUM and subject of e-mail violation threshold

Hello! I'm use Cisco HUM Version & Patch Level:1.2.2.
In Threshold Setup i create Threshold and notification e-mail. But i want to include in this e-mail a description of interface. How i can do it?
Now, i have subject of e-mail:
CiscoWorks HUM: Critical: Gi2/24 Threshold Violation: CP_INT_Util_OUT (DMZ_VC)
Host Name: CPLMSAPP
DMZ_VC has violated the 70.0 Gi2/24 threshold
Details:
MIB object name: 64bitTxUtilization
Instance Name: Gi2/24
Number of violatons: 2
Threshold condition: var >= 70.0
Violation value: 71.21
Severity: Critical
Date and Time: Mon, Feb 25 2013, 15:51:52 MSK

hi
in our company we have set the title in the method CRM_HTML_SMART_FORM of the processing class generating the mail.
(by default the action is SLFN0001_*_MAIL for message but it might have been changed)
if you want to know the class and method you need to select the right action profile and pick the email action to know it. (call transaction CRMC_ACTION_CONF for this)
if you don't know the action profile you can read it in the action log of your message (go in change mode in your message, action tab)
I hope it helps
br Xavier

Interface Threshold Violation

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