Wireless Site-Survey for High Density Environment

Hi,
I have done many Wireless SIte-Surveys in my career. But this will the first time, I am going to do a Site-Survey for High Density environment (School with Byod 1:1 design).
Currently, the school has a Wireless network in place. The current wireless design includes 3502 APs, 5508 WLC and Cisco Prime. The customer has issues with sufficient bandwidth in classrooms which limiting the students and teachers to access the learning content.
It is understood that there was no initial Site-Survey conducted, the AP positioning was made based on their knowledge.
Now, I am not sure as how to conduct the Survey here?
Do I need to conduct an Active Survey by connecting to the existing Wireless Network in the School? Or just passive Survey will be enough to determine the exact issues with the current design and provide the recommendations?
I have gone through the Cisco High Density design and white papers to start with.
Thanks,
CJ

Before you do the site survey, I'd do the initial breakdown of the LAN.
1. What kind of switch ports are we talking about?
2. Are the APs connected AND negotiated to 1 Gbps ports?
3. What is/are the switch uplinks? 100 Mbps, 1- or 10- Gbps, Etherchannel?
4. Line errors on the links between the AP and the switch, uplinks and the link between the WLC and the switches?
5. WLC link? How many are used? Are they LAG or not?
6. Configuration of the WLC must be checked.
Once you've checked these do I start talking about wireless:
1. What problems are the staff/students experiencing?
2. How many APs to a classroom? How big is the class?
3. Determine what kind of traffic are each class trying to push?
4. Where are the APs located in relations to the staff/student?
5. Verify co-channel interferrence. I know they have 3502 but I've seen people disable CleanAir.
6. Verify what kind of NIC cards are used and whether drivers have been updated or not.
I'm in the middle of improving our wireless coverage in >98 schools. This means I am now deploying 1 AP per classroom. In areas where the students/staff converge, I put additional APs (both indoors and outdoors).

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Wireless site survey planner tool for multi floor office building

Hi,
I'm looking a wireless site survey planner tool for multi floor office building to estimate the number of APs and location. Not the site survey after install APs.
AigMagnet is excellent for single floor but cannot provide multi floor scenario via planner feature even it merging capable with site survey after APs installation.
Any tools can provide the planner tool for multi floor office building?
Thanks in advance,

Cj
If you are looking for an AP estimate you can simply do the sq feet divided into the grade of wireless. For example
You have a 100,000 feet building. All 100,000 sq feet will be wireless.
Data 5,000 - 6.000 sq feet per AP or 100,000 / 5,000 = 20 access points
VoIP 2,500 sq feet per AP or 100,000 / 2,500 = 40 access points
I always like to pad it by another 10%.
I hope this helps â¦

Indoor Wireless Site Survey

Hello guys,
I have a question regading conducting an indoor (office building) wireless site survey. Is there a standard RSSI and SNR value for certain wireless survey requirements for "data only", "data and voice", and "location tracking"?
I am aware that voice can't go lower than -67 RSSi and 25 SNR. So I am assuming that the survey should be (using AirMagnet) the single AP coverage for both 2.4GHz and 5GHz shouldn't go lower than -67 RSSI with higher than 25 SNR is preferred. The 2nd AP coverage is -70 RSSI wih at least 25 SNR. Is this correct?
What about for data only coverage? I believe the SNR is 15dB is good starting based for data only coverage, but what is the standard RSSI value?
Is it -72 or -75?
Also, regarding the user density, what is the recommended number of users per AP for both 2.4GHz and 5.GHz for "data only", "data and voice", and "data, voice and video"?
Thank you in advance

Hello steelinquisitor
Thank you for contacting the Sales Acceleration Center (SAC) regarding your recent inquiry, Case Number 79980
Case Description:
Indoor Wireless Site Survey
Case Solution:
I do agree with Scott info but here is more information
This table lists the minimum Signal-to-Noise ratio values for the voice and data cells.
I am going to close the case for this specific inquiry. We strive to provide you with excellent service. Please feel free to reach out to me or any member of the SAC team if we can be of any further assistance or if you have any other related questions in the future. We value your input and look forward to serving you moving forward
Hello steelinquisitor
Thank you for contacting the Sales Acceleration Center (SAC) regarding your recent inquiry, Case Number 79980
Case Description:
Indoor Wireless Site Survey
Case Solution:
I do agree with Scott info but here is more information
This table lists the minimum Signal-to-Noise ratio values for the voice and data cells.
I am going to close the case for this specific inquiry. We strive to provide you with excellent service. Please feel free to reach out to me or any member of the SAC team if we can be of any further assistance or if you have any other related questions in the future. We value your input and look forward to serving you moving forward

Best practice power setting when doing a Site Survey for VOIP

Hi Team,
Can someone please confirm or correct me. When doing a Wireless Active Site Survey for Cisco VOIP, I should be setting the Test AP to local power of 14, which is 25mW? Is this correct, or should it be another value? I asked the customer for the power of their weakest client and they do not know, but they claim there's a high probably that they will go with Cisco VOIP clients.
Thanks...

When you check the signal coverage, make sure the AP's radio transmit power does not use a transmit power greater than what the client devices can support. For example, by default, the Cisco Unified Wireless IP Phone 7925G uses the highest available transmit power by default (17 dBm / 50 mW for 2.4 GHz and 16 dBm / 40 mW for 5 GHz). It is possible to have a survey report that shows good coverage in all areas; however, if you have APs that operate at the highest transmit power, you might still experience uplink issues where the client devices do not support the same transmit power. For areas where there is deficient coverage, and you increase the AP transmit power to levels that the client devices cannot support, this only increases coverage on the downlink.
Link for the same :-
http://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless-controllers/116057-site-survey-guidelines-wlan-00.html

Wireless Site Survey Tool

I am looking for Software tool to conduct wireless site survey in campus
Any recommendation ?
Regards
Mohamed

one is here
http://www.flukenetworks.com/enterprise-network/wireless-network/AirMagnet-Survey

Wireless Site survey tools and Software requirement

Dears,
I have Cisco wireless site survey to distributed and selected Wireless AP on big building contain 20 floor,
what are the prerequisites and is there any free tool from Cisco or third party software , that can help my to upload all building map to get accurate results,
AP model: 1602I-E-K9
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Is there any tools , I can used to do the site survey ?
Won't make any difference what tool to use if you don't know the basics and requirement in wireless site survey. As what George and Scott has mentioned, AirMagnet and Ekahau are the two largest and most popular wireless site survey programs in the market right now.
However, there are a number of topic that won't be covered in AirMagnet and Ekahau computer-based-training or web training. So getting the tools is half the "fun".
Get someone to do it for you. Tag along. Ask a lot of relevant questions. Observe what they do. Observe the tools they are using and what info their eyes are focusing into.
In some cases, when I do site survey, I only use a Cisco 7925G. That's all I use. So far my method, even though it is unorthodox, hasn't failed me one bit.

Wireless Site Survey

Dears,
I need to do a site survey so please can you advise what is the required cisco tools that I must use to do the site survey and to get the required AP that I have to put on my design.
Thanks

Here is a very usful link from Cisco website where it has the FAQ for a wireless site survey.
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_q_and_a_item09186a00805e9a96.shtml
Tools you could use for a site survey are Cisco spectrum expert and also Air magnet, but they are not free.
Basically when working with wireless setup we need to do a site survey to determine
the amount of access points you need to get to cover the required area, where to locate
each AP and power levels to use so that the overlapping of each cell is not more than 15%
to avoid roaming issue for the wireless clients, the required data rate needed per client
since wireless is half duplex and a shared medium and finally when working on the 2.4GHZ
distribute the 3 non overlapping channels (1-6-11)so that the access points do not create
interference between them.

Cisco WCS to conduct an Active Wireless Site Survey

Can I use Cisco WCS to conduct an Active Wireless Site Survey or it does only Predictive Wireless Site Survey ? I already bought a software that only do Passive but I need one to make an Active Wireless Site Survey.
I think that WCS does not provide walkthrough in active mode.
Tks.

WCS woudl only be able to do a Passive Survey. do to an 'active' or AP on a Stick survey you would need softare like Ekahau or Air Magnet to go out and read the RSSI/SNR from the AP.
HTH,
Steve
Please remember to rate useful posts, and mark questions as answered

Site survey for location based services

Hi Experts ,
Wht are the paramenters I need to concentrate while doing the site survey that incldes the requirement of location services?
Thanks,
Regards,
Vijay.

Location-based services:
WLAN location-based services requires that access points are placed in such a
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e surrounded by access points for ultimate optimization.
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http://www.cisco.com/en/US/docs/wireless/technology/vowlan/troubleshooting/8_Site_Survey_RF_Design_Valid.html

Wireless site survey doubts with cisco aironet site survey utility tool

Hi,
I have 1131 autonomous AP and we have project where we need to implement WLC 5500 with 1140 LAP.
Before that , we need to do site survey . we are going to use cisco aironet adapter and with the help of site survey utility tool we are planning to do site survey .
I have below doubt before starting the site survey :
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to configure the AP to existing lan set-up of client , it would not be flexible to do site survey ?
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Please suggest me .............
In short , without connecting to LAN set-up of client , how can i do the site survey ?
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Site Surveys are important and should be done by a professional. A poor site survey can lead to a lot of problems. It would be hard to put all aspects of conducting a proper site survey in a single post. Lets cover a few of the basics.
1) If you plan to deploy 1140 model access points. Then you should use that AP in autonomous mode so you dont have to be plugged into your network
2) The AP gets powered by an exteral power source like this battery for exmaple:
http://www.tessco.com/products/displayProductInfo.do?sku=345625&WT.mc_id=google_base&sp=true
3) As far as moving the AP around you can purchase a site survey pole like this:
http://www.tessco.com/products/displayProductInfo.do?sku=392506&eventPage=1
4) As for software, I like AirMagnet Surveyor
http://www.airmagnet.com/products/survey/
But again. There is a lot to know about doing surveys...

Site survey for 3502i access point

Hi,
I want to do initial site survey to fix the location of 3502i but there is no existing lan-set up where i can connect and do the site survey.
I do not have autonomous ap as well.
do i need to wait to get ethernet lan up and connect my ap and get registered ap with WLC and then fix the location or is there any other way to do site survey?
Please suggest me .

There is now available beta code for autonomous 1260 series APs. You could reach out to your Cisco contact and try to get that. The 1260 and 3500 series APs are identical with the exception of the spectrum capabilities in the 3500. So you can survey for a 3500 deployment with an autonomous 1260.
Regards,
Scott

Site survey for voip cutover

need a template to conduct a site survey to determine phone lines, extentions, phone features, etc

The following book has some useful questionnaires.
http://www.ciscopress.com/bookstore/product.asp?isbn=1587051575
Hope this helps. If so, please rate the post.
Brandon

Suggestion for high density Li-Battery

Dear Apple manager,
I am writing to suggest to develop hi-density lithium-battery.
All Apple mobile devices need hi-density Li-battery for long time using, quick charging and safety.
I am working in Li-battery material company in China, our main product is manufacturing precursor for battery cathod material.
Our company own new technoloty "non-ammonia processing precursor", recently developed precursor "Co3O4 with doping 5% manganese"
I believe this material is the first case in the precursor world which manganese evenly spered inside Co3O4. If this material be used in Cathod,
the Li-battery's energy density will be higher than existing level and make longer batter's lifecycle, reduce charging time.
For your reference, I attach the new precursor "cobalt oxide with doping manganese"
If you any question, please feel free to contact me.
Mobile : +86-139-1161-8893
e-mail : [email protected]
All the best,
Sungmin, Lee
P.S.
Sorry for that my computer can not loadup the fie.
I write down the main contents as below.
Co 69.28% (95.62 mol%)
Mn 2.96% (4.38 mol %)
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If you look at most of the adapters,the output is 5V.You can contact xperia care,but I am positive:
http://www.sonymobile.com/global-en/support/contact-us/
All we have to decide is what to do with the time that is given to us - J.R.R. Tolkien

Which JVM for high performance environment?

In a production environment, would you suggest JRockit or JDK for WebLogic? Is there a "better"?
~Bill

jschell wrote:
gimbal2 wrote:
I think it would be more interesting to know what Oracle recommends. If I have to believe the inclusion of the JRockit forum under the Application Server category, they seem to place JRockit as part of their Weblogic stack.
Given that Oracle charges for JRockit I would be rather certain about which one they recommend for everything.Not anymore right? Since the Sun take over it should be free. At least that's what wikipedia and several sources google found for me tell me :)
http://en.wikipedia.org/wiki/JRockit
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http://stackoverflow.com/questions/10361311/diffrence-between-jrockit-in-bea-weblogic-and-sun-java-implementation
I remember reading that features from JRockit would be merged into the 'regular' runtime (and that's also in the wikipedia entry). I think the heap space deal mentioned in the above thread at least is already implemented, the server VM at least since Java 6 update 18 tunes the max heap space based on the system environment in stead of having a stupidly low default.
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http://fasterbytes.blogspot.nl/2012/05/oracle-weblogic-server-12c-performance.html
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Wireless high density - Cisco vs World

For wireless environments with high density of clients many manufacturers (Meru, Xirrus, Ruckus, Trapeze, ...) have developed equipment and capabilities optimized to provide good performance, these features are mainly based on the use of a single channel, or the use of smart antennas and arrays. In theory, these features are quite reasonable.
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Thanks

1. When the video calls was on-going, what radio was this being carried over?
802.11a,g and n
2. What is the model of your WLC?
Cisco WLC 5508 in HA AP SSO
3. What is the model of your AP?
73 Cisco AP 3600 and 17 AP Cisco AP 1552
4. What is the firmware of the WLC?
7.4.121.0
5. Did you check for co-channel interferrence?
Yes, exist co-chanenel inteferrence
6. What is the speed of the APs wired Ethernet link?
1GBEthernet
7. Did you check for speed/duplex issues of the wired Ethernet link?
There is no exist issues of speed/duplex
8. What is the LAN backbone speed from the switch up to the WLC?
1GBEthernet
9. When doing the video calls, how many clients were associated to this AP?
We have tested with one user, using video calls, downloading of 4GB, sharing files by wireless network, and the conectivity is too long
Thanks for your answer.

Wireless Site-Survey for High Density Environment

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