several of the 2.4 GHz radios where disabled

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Muriel Oliver
6 years ago
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1 Question With the channel limitations of 2.4GHz compared to 5GHz, were some of the 2.4 radios disabled or was RRM left to do the adjustments? With the channel limitations of 2.4GHz compared to 5GHz, were some of the 2.4 radios disabled or was RRM left to do the adjustments? How many AP's in the Burdine room? If under seat or underfloor antenna locations is being considered, roughly how small can the antennas be? If under seat or underfloor antenna locations is being considered, roughly how small can the antennas be? Did the several disabled 2.4GHz radios need to be disalbled manually or can this be automated? differents AP's for 5GHz and 2.4GHz, or there are models that support both radios at the same time? understood - thx Answer several of the 2.4 GHz radios where disabled RRM Manages the resulting configuration will be answered in a few slides with drawings Two different questions. Under seat - generally internal antenna, under floor - depends on the aperature of the antenna, and several factors like construction. You have to try and measure it Many third party companies like Oberon make small plastic enclosures the AP with integrated antennas can be used in such a box and placed under seat or near area manually with this build - Cisco has shy'd away from automatically disabling radios - there are a lot of questions to be asked and answered to make that decision The Access Point has both bands 2.4 and 5 GHz in the same Access Point Yes. This was a design choice in this room - generally I deploy bopth radios supported if not under floor Can I safely assume that RRM is pretty much useless in this environment and that static power settings are the norm? Can I safely assume that RRM is pretty much useless in this environment and that static power settings are the norm? Okay that makes sense. It sounded like before that you manually were setting the radio setting for 2.4. Are you using RF Profiles to set data rates for AP Groups? From the user aspect: roughly, what was the cost for installing the Burdine Auditorium system. Is there an annual maintenance cost that should be budgeted? Were you using WCS prior to NCS? If so, what is your opinion of the differences between them? I had a lot of problems with Macs and ithings dropping after I disabled the b rates and MCS0. Per TAC's suggestion I re-enabled the MCS0 rate and have not been experien I have disable load balancing due to many Idevices clients not honoring the code 17 RRM manages the channel plans. TOC MInum was set to prevent overcooling when the room was empty TPC not TOC No - manually disabling some of the 2.4 Ghz radios The initial configuration was done before this feature was available - but yes we will use this I will ask Charles verbally for an answer MCS0 is the important one for the Ithingie's This has been an issue in the past. We continue to reenable it with newer clients it seems to be much less of an issue

2 this was causing many idevice issues during Hi Trent - yup ;-) clients are fun that way associations What type of controllers being used external both or Wism2 what did the speaker meant when he said "5 correct - reusing channel 1 and 6 channel re-use"? there are only 3 non-interference what did the speaker meant when he said ""5 a total of 5 deployed in the room channel re-use""? there are only 3 non-interference I use 5 Ghz for voice, it is only recommended 12 Yes you can use 5 GHz for voice for more see Voice over channels for 7925 phones WLAN design considerations Mobility/vowlan/41dg/vowlan_ch8.html can i use more channels or will the phones roaming This depends on what the phone supports suffer? Due to increasing bandwith demand would you say that an installed system will provide client satisfaction for 5 years. at which point the system must be upgraded? I see you are speaking to this now, In the high Co- Channel was measured and managed starting with AP density Do you have any issue with co-channel placement - it is the key challenge in a small dense interferece in the B/g 2.4G range? How low is the TX environmemnt power in the 2.4 band? What determines which type of controller you will largely the custom - any of the new generation controllers use in a specific area? have these capabilities DFS issues, does NCS report this as a DOT mode change? Was there a specific reason to focus high density environments to a dedicated WiSM/controller? Just curious - how many unique SSID's do you run? Have you deployed any of the newer 3600 access points and what is the average client load per AP (20-25 clients per AP/Channel)? Client Band Select in our 500 seat auditoruim works better with 2.5 in AutoRRM and 5Ghz manual set to high power. We just did this, so data is early but we went from 10% 5Ghz client to 50% 5Ghz client. Of course, this could be due to our AP placement, Do you try and encourage folks to turn off unneeded wifi devices in this room? Will these questions and answers be available along with presentation and audio? Why use both Airwave and Cisco NCS? Not enough functionality in NCS? I'm not certain I understand the question. We report that it has been detected - and the AP has changed channels in compliance Yes - for convenience while making changes to this one location i will ask - just a moment 3600's went in this summer - and yes per interface That was stated early in the presentation - yes - but difficult to enforce There will be a follow up with alink to the recording and preso

3 What is the majoe advantage for reducing cell size? What is the major advantage for reducing cell size? As far as the AP communications with the controller, I was trying to confirm that DFS and mode change notifications where the same thing. I get dot.11 mode change re-assotiation notification pretty often and I don't know what it is. i was told AC would be out 1st Q 2012 Reducing cell size allows more throughput per user as more AP's are available with less interference to increase density of cells and overall bandwidth available Glenn, We can not address roadmap in this forum. Please work directly with your account manager for details First enterprise iteration of.11ac will happen with AC wave 1 and will appear on the AP-3600 using the AC module for more see AP /ps11983/data_sheet_c html Do you use 3600i or e model access points, have you I will ask in one minute found if one model works better versus the other? how many AP's supported in the 5508 controller? 500 license maximum and maximum number of ssid's per AP? 16 SSID's per radio - something that you want to minimize here Any ideas on when ac clients will arrive? Intel? Broadcom? Clients are available in workgroup bridge devices today for linking gaming, video and home products, newer laptops and other devices are just now starting to show up with 11ac clients most appear to be Broadcom (right now) Are you running your controllers in a "full HA" How long have you had UNII 2 Extended enabled, and do you see some client issues? do you recommend client load balancing be enabled in a typical enterprise environment? Do you have 100% coverage across your campus What switching infrastructure do you use for this and do you have a layer 3 access to core design? How long have you had UNII 2 Extended enabled, and do you see some client issues? Maybe grad students with older laptops? Have you looked at Ciscos MSE or Mobility Services engine Is there a Cisco doc that addresses making the Wi-Fi network "friendly" to ios devices Do you have in-house Unified Communication like voice/video over Wifi? Seperate SSID? do you have encrypted ssid along with open ssid on same APs? yes

4 What is the optimal size for a Vlan to be use with the wireless network and what should be the lease time for clients on that Vlan what type of security policies do you have in place, for user authentication/authorization? Have you considered removing also the 12Mbit/s he stated earlier that this is under consideration now in speed on 2,4GHz or will that be a bad idea? the HD spaces is the per client throughput limitation used? Do you use HREAP local switching? How did you get the reports of the percentage of the different OS users (windows XP, Win7, etc.) and different vendors? The current Cisco WCS could not give such detailed information. Do you use Cisco NCS and ISE? Thank you. is there regulation for power level and AP locations Yes see the AP deployment guide at this URL in health consideration? s_tech_note09186a0080bd3d10.shtml If your Wireless Environment uses VoiP 7925 Phones the documentation states not to use load balancing. Is this correct? Jim, in a previous answer to Ithings and MCS0 you please me - jiflorwi@cisco.com mention this appears required for the ithings... I am having an issue with ithings also.. Can you tell me in the WCS5508 what area can I check for this setting? How many maximum client connections due you recommend per access point? Are foreign (Swedish ;) ) client devices an issue on the 5GHz band (different active channels)? Also is there a clean way to segregate a specific 2.4ghz wireless platfrom to use specific APs only instead of any random AP they see besides a new do the instructors ask students to view streaming video, if so how does the design handle a load such as this? You mentioned locating APs down low on the wall or under seats to use bodies to shrink the cell size. What do you do to physically protect the APs from tampering/vandalism/accidents? You mentioned locating APs down low on the wall or under seats to use bodies to shrink the cell size. What do you do to physically protect the APs from tampering/vandalism/accidents? What is main advantage of having 2.4G only APs and 5G only APs, instead of using dual band APs. are your users using AD or something equivalent? What method do you use to track bandwidth? in some of the classrooms - video is streamed - but individually by student at the moment Often enclosures are used such as those by Oberon that allow the AP to mount securely and prevent tampering in a lot of universtity environments Vandelism is often a concern - however rarely seen when it comnes to internet devices Dual band A{P's are used - dedicated to different modes - but this was for flexibility in the design in this particular room

5 how do you deal with specialized devices that don't support enterprise authentication? how many staff work with Charles at the Uni?

High Density Experience Features in Release 8.0

High Density Experience Features in Release 8.0 This section covers the following topics in depth: Receiver Start of Packet Detection Threshold, page 1 Optimized Roaming, page 5 Dynamic Channel Assignment in RF Profiles, page 11 Receiver Start of Packet