Question regarding Wireless design

Hi,
I am planning for a wireless design for a new site and would like to understand the following
1. Should I go with the Access Point (AP) that support 2.4 GHz or 5 GHz or both
2. What is the average coverage area in meters or feet for both the frequencies
3. If the overall area is 2000 Sq. feet with few walls in between, how many access points will be required approximately
4. What is the leading practice on the number of users per AP
5. What are the circumstances when a Wireless controller need to be deployed. Is it purely based upon the number of AP's to manage?
6. Should there be a separate DHCP scope for each AP? If not, how to AP's communicate with each other if there is no controller deployed?
Your time for answering these will be highly appreciated. Thank you.

Hi Manoj,
Here is my responses to your qurey.
1. Should I go with the Access Point (AP) that support 2.4 GHz or 5 GHz or both
BOTH
2. What is the average coverage area in meters or feet for both the frequencies
These days coverage is not the primary criteria, its capacity. Roughly you need to put a AP for each 20-25 devices for normal data usage.
3. If the overall area is 2000 Sq. feet with few walls in between, how many access points will be required approximately
Based on the number of devices expected in each area you can determine that. If you do a survey do it in 5GHz which is lower cell size.
4. What is the leading practice on the number of users per AP
If it is typical data usage (email, browsing,etc) then 20-25 users per AP. If you require Video/voice then this number comes down to around 10.
5. What are the circumstances when a Wireless controller need to be deployed. Is it purely based upon the number of AP's to manage?
Always go for a Controller managed solutions. It is very hard to control RF environment if you go to manage then individually.(like autonomous AP)
6. Should there be a separate DHCP scope for each AP? If not, how to AP's communicate with each other if there is no controller deployed?
No, you can have single DHCP scope for AP. As long as AP & WLC have layer 3 reachability it will comunicate with each other using CAPWAP protocol.
HTH
Rasika
**** Pls rate all useful responses ****

Similar Messages

Question about Wireless Design and Controller

Hi Everyone,
Although I am not new to Cisco, I have somewhat limited experience with Wireless in general. I was hoping to get your help with the following:
We currently have a total of 8 1130AG, 4 on each floor. They were configured a few years ago, and now we are looking to update the design a bit. Each AP has its own SSID, and just provide internet access. Looking at the configuration, I noticed that they are not configured to use proper channels, just random channels (9, 10, 11, instead of 1, 6, 11, etc.). I noticed that when I roam between one AP to another, I lose about 4-8 pings before I re-establish connectivity again.
Here are my questions:
1. Do I need a controller in order to use just one SSID for the whole setup instead of the 8 seprate ones we currently have?
2. Will the controller helps in providing seamless transition when a client roams between AP's?
3. Is it normal to loose connectivity roaming around?
4. Can I reconfigure the current setup to use just one SSID and provide better transition between AP without the use of a controller?
5. Which controller would you recommend?
We don't have a need to anything fancy ,I am aware that I can enable multiple SSID, VLAN's, etc. Just trying to keep it as simple as possible, yet reliable.
Your input is appreciate.
Thanks

1. With 8 AP's only, a WLC would be nice-to-have but not necessary. You can configure WLSE and it will do some limited functions.
2. This depends on the signal strengths, wireless coverage and configuration. If you enable WLSE, for instance, and you have no wireless black spots, then roaming should be no issues.
3. See #2.
4. You can configure multiple SSID (up to 16 are broadcasted) but if one AP doesn't have the SSID you use for roaming, the association will drop when the client tries to join that particular AP. It's like mobile phone towers. If your carrier is not in the area, you sure won't be able to use your mobile phone in that area.
5. For 8 1130 APs, I'd recommend the smallest of the lot: 2106 with either 6, 12 or 25 AP licenses. I'd recommend you the 25 AP licenses. If your finances allow you something bigger, then consider either the 4402 (25 AP licenses) or the 5508.
Cisco 2100 Series Wireless LAN Controllers
http://www.cisco.com/en/US/prod/collateral/wireless/ps6302/ps8322/ps7206/ps7221/product_data_sheet0900aecd805aaab9.html
Cisco 4400 Series Wireless LAN Controllers
http://www.cisco.com/en/US/prod/collateral/wireless/ps6302/ps8322/ps6307/product_data_sheet0900aecd802570b0_ps6366_Products_Data_Sheet.html
Cisco 5500 Series Wireless Controllers Data Sheet
http://www.cisco.com/en/US/prod/collateral/wireless/ps6302/ps8322/ps10315/data_sheet_c78-521631.html

Questions regarding wireless internet

Many questions...
1. How do I know if I have an airport card installed? I don't remember if it was installed when we got it.
2. We received a hand me down Belkin 54g and wanted to connect our to computers (g5, PC) to it. What, if anything, do I need to do to get my computer ready for this? I know I need to get the drivers from their website but I seemed to be having problems, so I wasn't sure what was going on.
Sorry for the juvenile questions, but I have never done this and have no idea how. Thank you.

Advanced, Welcome to the discussion area!
1. How do I know if I have an airport card installed? I don't remember if it was installed when we got it.
Run System Profiler and see if it has any AirPort information.
We received a hand me down Belkin 54g and... What, if anything, do I need to do to get my computer ready for this?
I'm assuming that this is a wireless router...??
If your G5 has the AirPort Extreme built-in then it is all set.
I know I need to get the drivers from their website...
There are no drivers needed.

Question regarding cancelation of wireless contract and signing a new one

Hi, I have a question regarding my contract. My Cell was stolen 2 days ago ( Iphone 5) had it for about year and 2 months. now I have a dilemma when it comes on getting a new device. the rep told me she can offer me some S... phones for over $200 as a replacement or I to look up Amazon; Ebay and craiglist. I also don't want to pay a retail price for a brand new device. So I was thinking of cancelation of this contract paying the fee and signing up a new contract with a new device like Iphone 5s or Samsung Galaxy. My question is, are there any waiting periods for doing such a thing, or I could do it at the same time, ditch old contract and sign for new one.

I really want to take a closer look at your options, Filip.M. We definitely wouldn't want to see you cancelling out all the great history you have with us already. I have sent you a follow request here in the forum. Please access https://community.verizonwireless.com/actions to accept my request and follow me back so you can send me a private message with your name and mobile number so we can get started.
Thank you
JenniferH_VZW
Please follow us on Twitter @vzwsupport

Question regarding ONT connection via Ethernet and Cable cards

Hi,
We recently upgraded to Fios Quation 150Mbps/65 plan. We are not getting the advertised speeds (we only get like 5mbps upload) so verizon is sending a tech to switch the ONT connection from coax to ethernet.
I have 2 questions regarding this new setup:
1. If the ONT communicates with the Fios Actiontect router via ethernet instead of coax from now on, How will the set top boxes and Tivo-esque cable card powered device I currently have connected to coax, talk to the verizon system from now on, if coax is taken out of the equation? Will fios signal still flow through the internal coax wiring of the house? And moreover, I was under the impression that coax was the way set top boxes communicated and derived independent ip addresses from the Fios router, for on deman purposes and what not. How will this work from now on?
Quiestion 2.
Right next to the wall where the ONT sits, theres's a basement office where we have a PC that connects to the Fios system via an Actiontect MoCa adapter (ECB2500C) which I assume derives it internet connection from the Fios Actiontec router which sits upstairs in the living room.
Again, with the Coax about to be disabled next Friday in favor of ethernet connection from the ONT, I assume this PC will be left without internet because of the lack of internet signal in the coax? Is this correct?
Question 2.5 If my above assumption is correct, since this office is right on the other side of the wall where the ONT sits outside the house, would it be possible to run an ethernet wire through the wall that connects straight from the ONT to an ethernet switch inside the office, from which I would derive a connection for this basement PC (properly firewalled of course) and then, from said switch, continue running the ethernet wire that would ultimately reach the Actiontec Fios router upstairs from which the rest of the house derives it's internet? and would this setup affect in any way the propper functioning of the cable boxes in the house?
I'd appreciate your input and any help you can provide so I can have a ballpark idea of what to tell the Fios guy to do when he comes on Friday.
Cheers.
Solved!
Go to Solution.

It's not valid to have two devices connected to the ONT, PC and VZ Router. Must be a single device. The ONT locks onto the MAC Address of the first device it sees. Since you have TV you should have the VZ router as the internet facing router.
Other options:
1. Have the VZ Router located next to the PC in the basement and then use Wireless for all other PC's.
2. Have the VZ Router located next to the PC in the basement but run one wire upstairs and connect a switch where other PCs and devices can connect via a wire.
Hope that helps.

Questions regarding creation of vendor in different purchase organisation

Hi abap gurus .
i have few questions regarding data transfers .
1) while creating vendor , vendor is specific to company code and vendor can be present in different purchasing organisations within the same company code if the purchasing organisation is present at plant level .my client has vendor in different purchasing org. how the handle the above situatuion .
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Hi,
1. Create a BDC program with Pur orgn as a Parameter on the selection screen
so run the same BDC program for different Put organisations so that the vendors
are created in different Pur orgns.
2. Check the Action Log in LSMW and see
3.see the doc
BAPI - BAPIs (Business Application Programming Interfaces) are the standard SAP interfaces. They play an important role in the technical integration and in the exchange of business data between SAP components, and between SAP and non-SAP components. BAPIs enable you to integrate these components and are therefore an important part of developing integration scenarios where multiple components are connected to each other, either on a local network or on the Internet.
BAPIs allow integration at the business level, not the technical level. This provides for greater stability of the linkage and independence from the underlying communication technology.
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The Legacy System Migration Workbench (LSMW) is a tool recommended by SAP that you can use to transfer data once only or periodically from legacy systems into an R/3 System.
More and more medium-sized firms are implementing SAP solutions, and many of them have their legacy data in desktop programs. In this case, the data is exported in a format that can be read by PC spreadsheet systems. As a result, the data transfer is mere child's play: Simply enter the field names in the first line of the table, and the LSM Workbench's import routine automatically generates the input file for your conversion program.
The LSM Workbench lets you check the data for migration against the current settings of your customizing. The check is performed after the data migration, but before the update in your database.
So although it was designed for uploading of legacy data it is not restricted to this use.
We use it for mass changes, i.e. uploading new/replacement data and it is great, but there are limits on its functionality, depending on the complexity of the transaction you are trying to replicate.
The SAP transaction code is 'LSMW' for SAP version 4.6x.
Check your procedure using this Links.
BAPI with LSMW
http://esnips.com/doc/ef04c89f-f3a2-473c-beee-6db5bb3dbb0e/LSMW-with-BAPI
For document on using BAPI with LSMW, I suggest you to visit:
http://www.****************/Tutorials/LSMW/BAPIinLSMW/BL1.htm
http://esnips.com/doc/1cd73c19-4263-42a4-9d6f-ac5487b0ebcb/LSMW-with-Idocs.ppt
http://esnips.com/doc/ef04c89f-f3a2-473c-beee-6db5bb3dbb0e/LSMW-with-BAPI.ppt
<b>Reward points for useful Answers</b>
Regards
Anji

Question regarding ASO application in Essbase 11 version

Hi All,
Thanks for the replies to my previous posts.
I have a question regarding the ASO applications for telecom company built in Essbase 11 version. Please provide your feedback on the design.
The ASO application has the following number of Dimensions:
Dimensions     Number of Levels     Number of Level 0 Members     Number of Attribute Dimensions
Dimension1     2     6.5 million     15
Dimension2 1     3
Dimension3     1     4
Dimension4 1      6
Dimension5 1     6
Dimension6     1     5
Dimension7 1     3
Dimension8     5     1700
Dimension9     2     800
Dimension10 2     40000
Dimension11 3     750
Dimension12 2     34000
Dimension13 1      15
The number of Measures is 8.
The outline size is around 2.12 GB.
The data is mostly sparse. Does this design yield a good performance. Should I change some of the attributes to UDAs to increase the performance.I think Attribute dimensions are more flexible than UDAs but it affects the performance of the retrieval.
Thanks in advance.
Kannan.

In ASO attribute dimensions are treated like regular dimensions, That is to say they are materalized just like a regular dimension. Changing them to UDA's won't buy you the same performance as having them as dimensions will. The one nice thing about Attributes in ASO cubes (and BSO cubes) is you don't clutter us the screen with dimensions that are not used a lot. If your attrubite dimensions are used often in your ASO cube, there would be no performance difference if you made them regular dimensions.

Question Regarding Mesh with 3702 and non AC ap´s

Hello!
quick question regarding MESH deployments with 2 different sorts of AP´s: AC and non-AC modells: If my 3702i is my root AP´s, and 3602i my MAP - will AC still work in 80Mhz, or will I have to switch to 40mhz (and thus crippling (???) AC performance?)
Not 100% sure on this... I *think* it should still work for the normal 802.11n connection, but I´m not sure if the 80mhz channel width (needed??) for AC, will cause the non-ac 3602i to be stranded?
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Currently, my network DHCP server is a software based DHCP server. In reading over your post if I understood correctly it sounds like the managed switch would have its own hardware based DHCP server to assign IP addresses to those clients identified on the "external" VLAN. Did I understand that correctly or did misread something?
DHCP server will be software based, even though you defined it on your switch, it is DHCP service running on its OS.
I am configuring this setup for a small business application and will need to purchase a managed switch with 16 or 24 ports. Do you have any recommendations on a particular managed switch that will handle the VLAN configuration and include POE while keeping costs in mind.
In this forum, most of us discussed about Cisco enterprise grade wireless. Here is 2960X series switch detail, if you are interested
http://www.cisco.com/c/en/us/products/switches/catalyst-2960-x-series-switches/index.html
You may need to check the pricing with your Cisco account manager or from a Cisco partner.
HTH
Rasika
**** Pls rate all useful responses ****

Question regarding Command pattern

Hi!
I have a question regarding the Command pattern:
//Invoker as defined in GOF Design Patterns
public class SomeServer {
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as a parameter to the createCommand method or should i configure the receiver inside the CommandFactory or
send it as a paramter to the execute method? Since SomeServer acts as both client and invoker, SomeServer "knows" about the Commands receiver. Is this a bad
thing?
Regards
/Fredrik

#!/bin/bash
DATE=$(date '+%y-%m-%d')
if find | grep -q $DATE ; then
echo "OK - Backup files found"
exit 0
else
echo "Critical - No Backups found today!"
exit 2
fi
should work too and it's a bit shorter.
Please remember to mark the thread as solved.

Questions regarding Adobe Interactive Forms capabilities

Hi,
We have the following questions regarding Adobe Interactive Forms.
1. Not able to create a text field with dynamic size according to the data entered in the text field in a form with Static Content type forms.   We use a scroll area, but cannot print content that is not visible in the scroll area.
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2. Another requirement is that once one form is accepted by the Customer, we need to generate a second, new form (with all user entered information from the first form) and the customer should be able to print the form.
    To implement this, we need to have a form that can support dynamically growing text field in some areas, and specific positioning of form elements for other areas. Can we have a dynamic form which lets the fields grow dynamically according to the data entered in the field and with specific positioning of elements?
3. Sending emails from Offline forms Requirement is to send an email as soon as the form is accepted by our Customers. But the Customers can complete the form offline. Is it possible to automatically send an email in an offline forms without having the user push the send button from their email application? Can the Adobe Form do that part automatically?
Appreciate any help regarding above questions.
Thanks,
Kalyan

HI Francois,
Thank you very much for the very helpful information.
1. I am able to insert now the floating field inside a static text but the text does not grow dynamically even when I set the form type to be "Flowed Content". Is it something that required Adobe Designer 7.0 and also 2004s ADS?
2. I can still select only Flow or position content from the option but how can we use both in the same form? I am using Adobe Designer 7.0 and it allows to select only one. Is it again a problem in lower versions that I use?
3. This is an excellent idea and I strongly believe this is going to work (am trying to create POC for this solution). The form should be able to call the webservice as long as the user is connected to internet.
Can you provide your views on the first two points. I appreciate your help.
Thanks,
Kalyan

Questions Regarding Asus K53E-BBR4

I have a couple questions regarding the AsusK53E-BBR4. First question does this laptop support wireless b and/or g because it only mentions N ?
Second question is this laptop available for ship to store ? Specifically (Store 597) Zip 16509
Thanks,

Wireless N is backwards compatible with A/B/G standards so you can connect them all.
In regards to your product question, you can view the product page on Best Buy's website, input your zipcode and you will see the options for your particular store you shop at.
*******DISCLAIMER********
I am not an employee of BBY in any shape or form. All information presented in my replies or postings is my own opinion. It is up to you , the end user to determine the ultimate validity of any information presented on these forums.

Question regarding buying phone from Amazonwireless

Hi, I have two questions regarding amazonwireless.
I have a nationwide 700 family plan and my phone is eligible for an upgrade now.
Amazonwireless has a good basic phone ( Samsung) that verizon don't have. If I buy it from Amazon and extend contract for 2 more years, does this work? Will I be moved to new share all plan or keep my old family plan? Or is there a catch?
My other question is the AmazonWireless Instant Discount Policy, if another line on my family plan upgrades to iphone in a few month ( when it's eligible for upgrade) and adds data plan ( we currently don't have any data plan), would this violate Amazon's policy since the contract is changed? I attached their policy below for reference.
I know it's a long read, but thank you for helping!
AmazonWireless Instant Discount Policy
When you purchase your device with service from AmazonWireless.com, we automatically pass along an instant discount from the carrier to you. This discount has been provided to you based on your agreement to (a) activate a new, or extend an existing, line of service for this device with the carrier, and (b) maintain this service in good standing for a minimum of 181 consecutive days. If you do not activate or extend a line of service in connection with this device, or if your service is canceled/disconnected before 181 consecutive days, AmazonWireless.com will charge you $250 per device, plus applicable taxes.

From the Amazon Wireless FAQ:
I need a new phone, but my line isn't eligible for an upgrade. Another line in my family account is eligible. Can I get a new phone for my line by using the upgrade of the other line in my family account?
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Question Regarding MIDI and Sample Accuracy

Hi,
I have 2 questions regarding MIDI.
1. MIDI is moved by ticks. In the arrange window however, you can move a region by samples. When doing this, you can move within values of the ticks (which you can see on your position box that pops up) Now, will this MIDI note actually be played back at that specific sample point, or will it round the event to the closest tick? (example, if I have a MIDI note directly on 1.1.1.1, and I move the REGION in the arrange... will that MIDI note now fall on the sample that I have moved the region to, or will it be rounded to the closest tick?)
2. When making a midi template from an audio region, will the MIDI information land exactly on the sample of the transient, or will it be rounded to the closest tick?
I've looked through the manual, and couldn't find any specific answer to these questions.
Thanks!
Message was edited by: Matthew Usnick

Ok, I've done some experimenting, and here are my results.
I believe those numbers ARE samples. I came to this conclusion by counting (for some reason it starts on 11) and cutting a region to be 33 samples long (so, minus 11, is 22 actual samples). I then went to the Audio Bin window, and chose to view region length as samples. And there it said it: 22 samples. So, you can in fact move MIDI regions by samples!
Second, I wanted to see if the MIDI notes in the region itself would be quantized to the nearest tick. I cut a piece of audio, so it had a 1 sample attack (zoomed in asa far as I could in the sample editor, selected the smallest portion, and faded in, and made the start point, the region start position). I saved the region as a new audio file, and loaded it up in the exs sampler.
I then made a MIDI region, with and triggered the sample on beat 1 (quantized, on the money). I then went into the arrange window, made a fixed cycle length, and bounced the audio. I then moved the MIDI region by one sample to the right. I did this 22 times (which is the number of samples in a tick, at 120, apparently). After bouncing all of these (cycle position remained fixed, only the MIDI region was moving) I imported all the audio into the arrange on new tracks, and YES!!! The sample start was cascaded by a sample each time!
SO.
Not only can you move MIDI regions by sample, but the positions are NOT quantized to Logics ticks!
This is very good news, and glad I worked this out!
(if anyone thinks this sounds wrong, please correct me, but I'm pretty sure I proved it, in my test)
Message was edited by: Matthew Usnick

Question regarding homehub and Open reach router -...

Hi all,
I had infinity installed earlier this month and am happy with it so far. I do have a few questions regarding the service and hardware though.
I run both my BT openreach router and BT Home hub from the same power socket. The problem is, if I turn the plug on so both the Homehub and Openreach Router start up at the same time, the home hub will never get an Internet connection from the router. To solve this I have to turn the BT home hub on first and leave it for a minute, then start the router up and it all works fine. I'm just curious if this is the norm or do I have some faulty hardware?
Secondly, I appreciate the estimated speed BT quote isn't always accurate, I was quoted 49mbits down but received 38mbits down - Which I was happy with. Recently though it has dropped to 30. I am worried this might continue to drop over time. and as of present I am 20mbits down on the estimate . For the record 30mbits is actually fine and probably more than I would ever need. If I could boost it some how though I would be interested to hear from you.
Thanks, .

Just a clarification: the two boxes are the HomeHub (router, black) and the modem (white). The HomeHub has its own power switch, the modem doesn't.
There is something wrong if the HomeHub needs to be turned on before the modem. As others have said, in general best to leave the modem on all the time. You should be able to connect them up in any order, or together. (For example, I recently tripped the mains cutout, and when I restored power the modem and HomeHub went on together and everything was ok).
Check if the router can connect/disconnect from the broadband using the web interface. Leaving the modem and HomeHub on all the time, go to http://192.168.1.254/ on a browser on a connected computer, and see whether the Connect/Disconnect button works.

Question regarding IWDTree and context Value Node naming

Hi,
I have a question regarding the IWDTree / IWDTreeNodeType components.
I have a context looking like this:
Context
+ ResponseNode
    + PersonNode (1..1)
      + PersonAddressNode                    (empty node, placeholder)
      | + AdresNode (0..n)
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      | + PersonNode (0..n)
      |   + PersonAddressNode                (empty node, placeholder)
      |     + AddressNode (0..n)
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        + PersonNode (0..n)
          + PersonAddressNode                (empty node, placeholder)
            + AddressNode (0..n)
The context represents a person, a person's address, and a person's children and parents with their respective addresses.
As a result, on different branches, a PersonNode and AddressNode can appear.
And for some strange reason, all PersonNodes and AddressNodes link to the same ResponseNode.PersonNode.PersonParentsNode.PersonNode and ResponseNode.PersonNode.PersonParentsNode.PersonNode.PersonAddressNode.AddressNode respectively, irregardless of their branch...
Is it illegal to have multiple PersonNode and AddressNode node names, and should they be named uniquely?

Generally, node names need to be unique inside the context, attributes in different nodes can have same names. I wonder if the context structure you described will result in code without compile errors.
The WD Tree can only be used with recursive context nodes or with a hierarchy of non-singleton child nodes.
Can you give an example how your tree should look like at runtime?

Question regarding Wireless design

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