Ncs, wlc and clean air

Hi,
we have this:
1x wlc 5508 7.2.103
1x cisco prime infrasture physical appliance 1.2
And for test of clean air 1x ap 3600 series
But i have a question if i would like see bluetooth device in neighborhood.D you really have to other device?
On the cisco web i founded 3355 or virtual appliance.Do I need this device?
Thank you
Sent from Cisco Technical Support iPad App

You need, a minimum, the AP and the WLC if you want to see how BT is being detected.
CPI is only for show-and-tell.

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Rogue Ap' s and clean air

Hi
Is there a relation between rogue access point detection and clean air , Rogue access point detection is based on the clean air technology ?

No, its not.
Along with what Salodh suggested, following details might help.
Rogue APs are:
APs which are not recognised by our controller.
APs not been created and managed by our controller.
The controller put those APs in a category called Rogue.
Disclaimer: Proper Authorization required to attack a Rogue AP. For Example its our building, our floor and a rogue AP shows up in the middle of it, at that point we might have the authorization to disrupt the services of that AP.
On the other hand,
CleanAir Technology identifies and resolves RF interference challenges.
The term Air Quality Index ranges from 1 to 100 (where 100 means that the Radio Frequency doesn't have much interference and 1 means that AP needs to make changes)
When and AP detects interference, it rates it by Interference Severity Levels (1=Low Interference Severity and 100=Terrible Interference)
The Interference Severity reduces the AQI levels.
AQI Sensitivity Levels:
High sensitivity: If AQI drops below 60, take action to move channels.
Medium Sensitivity: If AQI drops below 50, take action to move channels.
Low Sensitivity: If AQI drops below 35, take action to move channels.

Difference between Clean Air 3.0 and Clean Air Expres

Hi Community.
There are some papers which show the difference, but these aren't very clear.
As i know Clean Air 3.0 will automatically adjust power level, etc. and Clean Air Express doesn't. Is that right, or what should be the main fifference? The CAP1702 (whit Clean Air express) is much cheaper than a CAP2702 (with Clean Air 3.0).
thanks in advance and kind regards patrick

It's best to compare the data sheets for each access point, but I would probably lean towards the 2700e, 3600e or 3700e for what you are trying to accomplish. Of course, this will depend upon the size of the organization and budget.
Clean Air White Paper
http://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/cleanair-technology/aag_c22-594304.pdf
Data Sheets for 1600 & 2700
http://www.cisco.com/c/en/us/products/collateral/wireless/aironet-1600-series/data_sheet_c78-715702.html
http://www.cisco.com/c/en/us/products/wireless/aironet-2700-series-access-point/index.html
From an 11n perspective, there are a couple of differences that make the 2700 more suitable for this environment, but that's not to say that the 1600 won't work. The 2700 also supports 11ac.
For more details please refer to the post-
https://supportforums.cisco.com/discussion/12219071/1602-cleanair-coverage-mse

Diferrence Between RRM and Clean Air

Hello Everyone.
I want to say thank you for read my post.
Well I'm having some problems here, because I don't get the correct Idea for RRM & Clear Air. For me they do the same.
Can anyone explain me the differente?
Thank you.

Hi Ordonez,
CleanAir:
With Cisco CleanAir technology, if an interference source
is strong enough to completely jam a Wi-Fi channel, the
system will change channels within seconds to avoid the
interference, resuming client activity on another channel
outside of the affected area. The system remembers
intermittent interference from persistent sources such
as a microwave ovens, wireless bridges, or wireless
video cameras. Through tight integration with Cisco radio
resource management technology, the CleanAir solution
indicates the channels where these devices operate so
that system administrators can optimize performance and
minimize future disruption.
Others claim to have integrated spectrum intelligence
but can’t effectively distinguish between Wi-Fi and non-
Wi-Fi interference. Spectrum intelligence products from
other manufacturers typically falsely interpret any network
noise as interference and randomly switch channels,
which jeopardizes network stability and may reduce
overall network performance.
Source: http://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/cleanair-technology/aag_c22-594304.pdf
RRM:
The RF Group Name is an ASCII string configured per wireless LAN controller (WLC). The grouping algorithm elects the RF Group leader that, in turn, calculates the Transmit Power Control (TPC) and Dynamic Channel Assignment (DCA) for the entire RF Group. The exception is Coverage Hole algorithm (CHA), which is run per WLC. Because RF Grouping is dynamic, and the algorithm runs at 600-second intervals by default, there might be an instance where new neighbors are heard (or existing neighbors are no longer heard). This causes a change in the RF Group that could result in the election of a new Leader (for one or multiple logical RF Groups). At this instance, the Tx Power Threshold of the new group leader is used in the TPC algorithm. If the value of this threshold is inconsistent across multiple controllers that share the same RF Group Name, this can result in discrepancies in resultant Tx power levels when the TPC is run
Source: http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/71113-rrm-new.html
RRM and CleanAir perform approximatley the same.
Only difference being in CleanAir they have implemented spectrum level intelligence which can differentiate between different wireless interfering devices for ex: microwave oven , cordless phone. With this if youre using NCS you can easily plot and mitigate the source of interfernce with exact device type.

WCS and Clean Air

Just upgraded our WCS server to the 7.x code over the weekend. Turned up the first 3500 series AP's today. The AP's have been up for about an hour. I am seeing the Air Quality graphs on WCS. On the Worst 802.11a/n and 802.11b/g/n Interferers windows, I am see a WCS System Error Page message but only in those windows. I have gone over the documentation and dont see that I need to enable anything else on WCS.
Anybody else seen this ?
Ron

Thanks Vinay and Leo.
So if I read the link correct I can only open an SR from within a thread that I have created and since I did not create this thread then I will have to create a new thread basically referring back to this one?
I just want to make sure I do the process correctly.
Yes I have a valid contract and I for sure can provide the name of my WCS.
As for the PAK information on the 10 pack of 3500's we bought, is that something I can get from the invoice or should I be able to find the appropriate PAK info somewhere else?
Thank you again, this has been a real eye openner for me.

5760 WLC Clean Air question

Hi,
My customer Cisco 5760 WLCs running as a HA pair. Clean Air has been configured on these boxes but when I do a sh ap dot11 5ghz cleanair summary all the APs show Spectrum Oper State as Down:-
CPIT-5760-WLC-1#sh ap dot11 5ghz cleanair summary
AP Name               MAC Address         Slot ID Spectrum Capable Spectrum Intelligence   Spectrum Oper State
AP1                   xxxx.xxxx.xxxx            1 Enabled           Enabled                 Down
AP2                   xxxx.xxxx.xxxx            1 Enabled           Enabled                 Down
AP3                   xxxx.xxxx.xxxx            1 Enabled           Enabled                 Down
Anyone got any ideas as to how I overcome this little obstacle?
Thanks
Alan

Thanks for the reply. As far as I can tell all the radios are operational:-
and Clean Air has been configured:-
ap dot11 24ghz cleanair
ap dot11 5ghz cleanair
Also the link you sent was for release 7 on the old series controllers whereas this is a HA pair of the 5760s running release 3.03.
I have been through the configuring Clean Air chapter for this release and it doesn't suggest anything I haven't already tried.
Alan

Clean Air - WLC 5508

Hello
Do I need to buy additional license for clean air to work, currently my BOQ cover
WLC 5508 with 50 AP license ( part no : AIR-CT5508-50-K9 )
20 AP ( model 3502 )
Redundant Power supply
LIC-CT5508-50 ( is this required to be mentioned )
Also I would like to understand are there any better model than AP 3502 & newer WLC model than 5508 ( I would have application users accessing application via Wireless LAN )
thanks
ST

Thank you Scott for the guide will have a look at that.
5500 series WLC got 8SFP uplinks hence;-
Can we Group 2 or more SFP for a specific SSID only configured on WLC and other SSID to route traffic from other uplink ports
Uplinks from WLC to Core are generally configured for failover or link aggregation
On WLC there are 5 SSID configured for example , the AP installed in HR room should broadcast only ONE SSID ( is this possible )
thanks
ST

AP with Clean-air Express and 3650 controller

Hi,
Is Clean-air express supported on the 3650 wireless controller with 1602e APs? The Clean-air options on the controller are available but do not seem to be active. In the controller gui the Clean-air admin status is disabled and the Clean-air operation status is down. I did confirm the Clean Air option is enabled on the config menu for the b/g/n band. Am I missing something here or are these AP's just not supported? Thanks!

CleanAir Express is different than CleanAir. Express means that the AP does the function of detection, not the controller. 1600's & 1700's run CleanAir Express and you don't have the 100% functionality of CleanAir with these access points.
-Scott

I spilled beer on my Macbook Air, and it is unresponsive. Should I dismantle and clean it?

I spilled a small amount of beer on my 11" Air, and it shut off immediately. I let it dry, and it is still completely unresponsive several days later. I have applecare, but I understand that applecare does not cover liquid damage. I have only had the computer for about 6 months. It was a major investment for me, and not easily replaceabIe. I am wondering if I should go to the trouble of dismantling and cleaning the parts. Would this possibly bring the computer back to life? I am not tech savvy enough to know, but I am guessing that if the motherboard/circuits are damaged, there is no hope. I would appreciate responses from people with knowledge/experience.

Alex Migda
I am wondering if I should go to the trouble of dismantling and cleaning the parts.
That really wont do any good.
dont turn it on, water / liquids migrate.
Turning it back on is BAD, damage A can lead to B leads to C etc.
Also water migrating around, especially while on, can wreck havoc worse than initial damage.
Nobody here can speculate on damage on something they cannot see.
Having repaired laptops in the past, even IF you got it completely dry, residue from water (iron particles etc), and wet spots under fine contacts is nearly impossible to "dry out", its just doesnt work that way.
Lots of people try to "dry it out", most to learn little was solved in doing same, and sometimes further damage occurred.
Taking it apart, youll just about never "dry out it out" due to the all the hidden spots that will REMAIN wet for some time, even IF you dry to "dry it out"
Also corrosion will set in when dry, and the dry residue can jump connections causing further damage
Make appt. with Apple store fore repair / diagnostic.
dont turn it on again. Sorry about the spill

Clean air

hi,
what is cisco clean air?
I have WLC 4404 and 1242AG AP...
can i configure this on wlc and ap?
if yes, how

Cisco CleanAir Technology
I have WLC 4404 and 1242AG AP...can i configure this on wlc and ap?
No. Only the 3500 WAP supports CleanAir.

Loss of AP signal strength after upgrading to Clean Air on 5508's.

After upgrading three 5508's (which support 150 AP's) from WLC/WCS version 6.0.182.0 to version 7.0.98.0, our users complained about low signal strength. Our pre-upgrade RSSI benchmarks confirmed a decrease of -10dB to -20dB signal strength across all AP's, effectively causing wireless networking to be unusable in key areas.
After confirming our Global signal strength settings in WCS and WLC's were still at the same settings they were at prior to upgrading, we contacted our VAR for advice.
He suggested that perhaps the upgrade caused all AP's to run at a lower signal strength. He was right.
At his recommendation, we reconfigured the WCS to set two AP's to use Individual mode instead of Global mode. This is found in Radios/802.11b/g/n/Tx Power Level Assignment. Setting them to level 2 resulted in an average -15dB increase of RSSI, solving our problems in the test environment. In one case we saw an increase of -30 dB for one AP.
The signal strength loss due to the upgrade was not expected, based on the upgrade documentation. Now we must change the settings manually on the remaining 148 AP's.
I'd like to hear from anyone else who has experienced a decrease in signal strength after upgrading to Clean Air 7. If you have information from Cisco that documents this problem, I'd REALLY like to read it.
Hoping this may help you,
RS

Hi Rick,
this is not "expected" or "on purpose". It just happens that improving the RRM algorithm makes things better for 90% of the people but maybe worse for 10% of the people.
This is why you can set the Tx power treshold on the RRM or set the overal RRM algorithm sensitivity.
If you put the Tx power treshold to a louder number (=closer to 0) then the APs will reduce less their power level.
Hope this helps.
Nicolas
===
Don't forget to rate answers that you find useful

Opening and cleaning a Macbook Pro (retina 2012)

I have had my MacBook Pro retina for more than 2 years, without cleaning the insides yet
I have used it extensively, many hours every day, and there has been periods of daily smoking
Should I just order a screwdriver set (pentalobe?), open it and clean the fans etc.?
I assume warranty is already expired.
But will opening and cleaning it be complicated or risky business? I'm good with electronics, but Apple uses small and delicate screws/parts etc.
Should I use a swab, compressed air container, or will a vacuum cleaner do? (metal/plastic head; static electricity)

Mow.gli wrote:
Should I just order a screwdriver set (pentalobe?), open it and clean the fans etc.?
I would. I open up my MBPs without fear. I suggest that you place it on a large surface with a clean towel underneath. That way you can slide it around without damage and when you drop a screw, it will tend NOT to bounce away.
I assume warranty is already expired.
Yes, unless you purchased Apple care which extends it to three years.
But will opening and cleaning it be complicated or risky business? I'm good with electronics, but Apple uses small and delicate screws/parts etc.
Should I use a swab, compressed air container, or will a vacuum cleaner do? (metal/plastic head; static electricity)
I do not consider it risky if you use patience and a little common sense. You may also need a #00 Phillips driver and possibly a Torx driver. Check the iFixit.com web site for disassembly instructions for you model and appropriate tools. That way you will have an idea what to expect. Swabs with a non-residue electronics cleaner and compressed air are good ideas. A vacuum cleaner should be used very judiciously.
Ciao.

Migrating to Clean Air

I have a question that I need answered preferably by a Cisco employee or someone who has migrated to Clean Air. We are thinking of migrating to the Cisco 3500 series APs in our environment. I was told a while back that Clean Air is only supported as a fork lift upgrade, meaning all APs would need to be 3500 in order to migrate. I was also told that we could use the 3500s in monitor mode for troubleshooting, but could not intermingle AP models.
I am aware that the code level needs to be at 7.0 to have the features of clean air, but is it true that I can not migrate slowly to replace my present APs? I am in a pretty large wireless environment with multiple WiSMs. There is just no way to do this all at once.
Erick

So will I still be able to see the benefits of the Clean Air technology in a mixed environment? Interestingly, that is not the information I was given initially. Are there any features in the 7.0 code that I will not have be able to take advantage of or are there any gotchas I need to be aware? While the benefits of Clean Air may not be recognized with our b/g clients, will the 3500 APs still service b/g clients for network access?
I found this straight from the Cisco documentation regarding the Clean Air design guide.
Mixing CleanAir LMAP and legacy non CleanAir APs in the same installation
Why should I not mix CleanAir LMAP and Legacy LMAP APs in the same physical area? This question pertains to this use case:
“I currently have non CleanAir APs deployed (1130,1240, 1250, 1140) in local mode. I want to add just a few CleanAir APs to increase my coverage/density. Why can’t I just add some APs and get all the CleanAir features?”
This is not recommended because CleanAir LMAPs only monitor the serving channel and all CleanAir features rely on measurement density for quality. This installation would result in indiscriminate coverage of the band. You could well end up with a channel (or several) that has no CleanAir coverage at all. However with the base installation, you would be using all of the channels available. Assuming RRM is in control (recommended) it is entirely possible that all of the CleanAir APs could be assigned to the same channel in a normal installation. You spread them out to try to get the best spatial coverage possible, and that actually increases the odds of this.
You certainly can deploy a few CleanAir APs in with an existing installation. It is an AP and would function fine from a client and coverage standpoint. CleanAir functionality would be compromised and there is no way to really guarantee what the system would or would not tell you regarding your spectrum. There are far too many options in density and coverage which can be introduced to predict. What would work?
AQ would be valid for the reporting radio only. This means it is only relevant for the channel that it is serving, and this could change at any time.
Interference alerts and zone of impact would be valid. However, any location derived would be suspect. Best to leave that out all together and assume closest AP resolution.
Mitigation strategies would be ill-advised to operate because most of the APs in the deployment would not operate the same way.
You would be able to use the AP to look at spectrum from Spectrum Connect.
You would also have the option to temporarily switch to monitor mode at any time in order to perform a full scan of the environment.
While there are some benefits, it is important to understand the pitfalls and adjust expectations accordingly. It is not recommended, and issues arising from this type of deployment are not supportable based on this deployment model.
A better option if your budget does not support adding APs that do not serve client traffic (MMAP) is to collect enough CleanAir APs to deploy together in a single area. Any area that can be enclosed on a map area can contain a Greenfield CleanAir deployment with full feature support. The only caveat on this would be location. You still need enough density for location.
http://www.cisco.com/en/US/products/ps10315/products_tech_note09186a0080b4bdc1.shtml

How can i get matte screen protected and cleaned ???

I know that glossy MBP has a piece of glass covered on the screen, and it's easy to clean it by using some soft material. However, for matte screen. how can I protect screen and clean it. Like at the edge of screen, if dust in it, I won't be able to clean it. Any ideas?

Trade it in for a glossy? Hee hee.
I use canned air to clean my screen sometimes, because most of what I have is dust on the display. Rarely do I get fingerprints (believe it or not) on the glossy screen. Saves from any abrasion by wiping it off with a dry cloth (the special kind, for like, cleaning eyeglasses, or one designed for LCD displays-- yes, I know the new MBPs have LED displays).
I used iKlear way back when, and oh, it is atrocious. Left residue on the screen that I couldn't get off with another clean wipe, and then even water wouldn't do it, so I had no choice but to pull out the Windex (not a good substance to be cleaning an LCD display with) to get it all off. So from my personal experience, stay away from the iKlear. Bad stuff.
I recommend canned air (for dust), and the cloth wipes (for grease and fingerprints). Use a damp cloth with water for any stuck on dirt.
ONCE IN AWHILE, it is "okay" to use some type of window cleaner (yes, I know everyone here will throw rocks at me) because water can never get out all that gunk in the long run. Once a month, I use it on those tough spots.
Honestly, with my glossy display, it is easy to clean and keep clean. The previous stuff I mentioned was based on my PowerBooks which were all matte screens, of course.

WLC and WCS conflict

Hi I am currently using 21 X WLC with N+1 Redundancy and 1X WCS with 1000++ of LAP1020. If had been observed that the antenna type and power TX had been changed with no reason. Is there any settings that may affect with AP customized Tx Power and antenna settings other than using the WCS template to push the configure to the APs instead of the WLC.

Sorry for jumping in on the question with another question but it seemed the right place.
I have an AIR-CT5508-25-K9 WLC and +25AP license : L-LIC-CT5508-25A.
As far as I understand it the WLC should already have a 25AP license installed and with the adder license I should have a count of 50 APs.
However, after installing the adder license the count is still 25.
Could you please let me know if it's just something wrong in my reasoning or should a case be opened?
Thank you,
Barbara

Ncs, wlc and clean air

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