Re: [WIRELESS-LAN] TerraWave Aruba Indoor AP Wireless LAN Site Survey Kit
Kitri That "kit" is nothing more than a Pelican case with handful of Aruba antennae. It provides you NOTHING to do surveys. there are no APs There is no Software (Ekahau or Airmagnet) Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"Resentment is like drinking poison and then hoping it will kill your enemies." - Nelson Mandela* *"You should not believe everything you read on the Internet" -Benjamin Franklin* *I asked God for all things, so I could enjoy life* *God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer "The great aim of education is not knowledge but action." *- Herbert Spencer* On Mon, Mar 17, 2014 at 5:23 PM, Kitri Waterman wrote: > Does anyone have experience with this survey kit from TerraWave? > > > http://www.terra-wave.com/shop/aruba-ap-134-mimo-essentials-site-survey-kit-p-2195.html > > I'm wondering specifically if this relies on Aruba software for the > actual surveying or something else from TerraWave? > > > > Kitri > -- > University of Oregon > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"Resentment is like drinking poison and then hoping it will kill your enemies." - Nelson Mandela* *"You should not believe everything you read on the Internet" -Benjamin Franklin* *I asked God for all things, so I could enjoy life* *God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer "The great aim of education is not knowledge but action." *- Herbert Spencer* ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] How many drops 802.11ac phase 2
You are correct... Sorry for any confusion On Tue, Feb 11, 2014 at 8:47 PM, Peter P Morrissey wrote: > Cat6a is 100 meters for 10 Gig. You may be thinking of Cat6 which was > supposed to go 55 meters for 10 Gig, but now I think they are saying 37 > meters for Cat6. > > > > Pete Morrissey > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Ron Walczak > *Sent:* Tuesday, February 11, 2014 7:45 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > > > 10G over copper is limited to 53 meters for cat6a... What percentage of > your AP's are that close to your data switch? > > A Re-design would be necessary > > > > On Tue, Feb 11, 2014 at 9:30 AM, Cameron, Damien L. > wrote: > > Wouldn't switches with 10G access ports (also 10G uplink ports on AP)and > 802.3at POE solve this issue? > > I understand resiliency is a plus with two data drops, but with RRM I > still can't see the benefit of two data drops. Doubles cabling cost, and > you still need the switch ports to support it. I've searched to see if > Cisco had any switches with 10G access ports; however, I've only seen this > in Nexus models for the DC. I think I came across a switch by Arista that > was 10G access. And we know with the pace that technology changes those two > data drops may not be needed in the future. > > Damien Cameron > Network Engineer > Norfolk State University > Office of Information Technology > Marie v. McDemmond Center for applied Research > Room 401 > 555 Park Avenue > Norfolk, VA 23504 > O: (757) 823-9123 > > > -Original Message- > From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of John Center > Sent: Tuesday, February 11, 2014 8:41 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > Hi Bruce, > > I was referring to the future 802.11ac phase 2 APs. > > > -John > > > On 02/11/2014 07:40 AM, Osborne, Bruce W (Network Services) wrote: > > What brand of APs are you using? Aruba APs will only accept PoE from the > first Ethernet port. > > > > Bruce Osborne > > Network Engineer - Wireless Team > > IT Network Services > > > > (434) 592-4229 > > > > LIBERTY UNIVERSITY > > Training Champions for Christ since 1971 > > > > -Original Message- > > From: John Center [mailto:john.cen...@villanova.edu] > > Sent: Monday, February 10, 2014 5:44 PM > > Subject: Re: How many drops 802.11ac phase 2 > > > > Hi Philippe, > > > > Another reason for 2 drops is resiliency. I envision connecting the > AP's 2 ports to a 2-switch stack. We rarely see the need for redundant > power supplies in an edge switch, but have seen failure on a switch ASIC > cause one or more ports to go dead. With 2 connections, one switch having > issues won't take out the AP. I think LAG'g both ports across the stack & > supporting LACP will become a future requirement. > > > > -John > > > > > > -- > > John Center > > Villanova University > > > > On 02/07/2014 10:21 AM, Hanset, Philippe C wrote: > >> Is the main justification for two drops due to power/bandwidth/the-two? > >> > >> With many services and most killer apps going to the cloud, I would > >> suspect that the bandwidth to the WAN is so limiting, that this > >> excess of capacity on Wireless is a complete overkill (a vendor > >> driven non-sense). > >> > >> Yes, those 802.11ac Phase2 APs can generate a lot more than 1 Gbps, > >> but that's is shared bandwidth (half-duplex), and your uplink is 1 > >> Gbps full-duplex (2 Gbps in Cisco math as we said in the old days). > >> > >> So, you really plan to also uplink your switches with 40 Gbps, and > >> then a core at many times 100 Gbps, all connected to your ISP at a > >> few Gbps... something doesn't add up here. > >> > >> Am I alone making bad accounting here? > >> > >> Philippe Hanset > >> www.eduroam.us <http://www.eduroam.us> > >> > >> > >> > >> On Feb 7, 2014, at 9:58 AM, James Robert Kennon >> <mailto:jken...@gsu.edu>> > >>wrote: > >> > >>> We just made a call on a new building and decided not to incur cost > >>> of > >>> 2 cables per drop at this
Re: [WIRELESS-LAN] How many drops 802.11ac phase 2
; >>> > >>> - > >>> --- > >>> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv > >>> >>> <mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> on behalf of Brian > >>> David mailto:brian.da...@bc.edu>> > >>> *Sent:* Friday, February 7, 2014 9:54 AM > >>> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > >>> <mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> > >>> *Subject:* [WIRELESS-LAN] How many drops 802.11ac phase 2 > >>> > >>> All, > >>> > >>> I wanted to see how many people were planning on running 2 drops to > >>> 802.11ac phase 2 access points? > >>> > >>> Currently we are just doing a one for one swap when replacing an > >>> older a/b/g AP's with 802.11ac phase 1 AP's > >>> > >>> When you have new construction, do you plan on running 2 drops so > >>> when phase 2 come into play you will be all set for it? > >>> > >>> > >>> > >>> */Brian J David/* > >>> > >>> */Network Systems/* > >>> > >>> */Boston College/* > >>> > >>> > >>> > >>> > >>> > >>> ** Participation and subscription information for this > >>> EDUCAUSE Constituent Group discussion list can be found at > >>> http://www.educause.edu/groups/. > >>> > > > > ** > > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > > > ** > > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"Resentment is like drinking poison and then hoping it will kill your enemies." - Nelson Mandela* *"You should not believe everything you read on the Internet" -Benjamin Franklin* *I asked God for all things, so I could enjoy life* *God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer "The great aim of education is not knowledge but action." *- Herbert Spencer* ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] How many drops 802.11ac phase 2
Don't forget most of that client access wants to get off your network and to the internet via your WAN connection (bottleneck?) On Sun, Feb 9, 2014 at 6:21 PM, Jason Cook wrote: > Bandwidth wise the channel usage seems to say quite a bit, along with > what many have mentioned on whether or not the users within the designated > coverage area for an AP would necessarily use it. > > > > According to the Cisco whitepaper > > > http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps11983/white_paper_c11-713103.html > > > > There's only 1 80Mhz/Wave 1 configuration that would have more than 1Gb > of actual throughput (Table 2) > > > > There's 4 such configurations in 160Mhz/Wave 2, > > > > However point 2.3.6 states "We see that in the United States, there are > 20 to 25 20 MHz channels, 8 to 12 40 MHz channels, 4 to 6 80 MHz channels, > and 1 or 2 160 MHz channels. These numbers are ranges because of the > evolving regulatory issues surrounding the different spectrum noted in" > > > > So actually requiring more than 1Gbps uplinks seems like it would be a > rarity in our environments. I can 't see us ever using 160Mhz, except maybe > in a very small area with extreme requirements. But hopefully 802.11ad will > be out by then. > > > > -- > > Jason Cook > > The University of Adelaide, AUSTRALIA 5005 > > Ph: +61 8 8313 4800 > > e-mail: jason.c...@adelaide.edu.au<mailto:jason.c...@adelaide.edu.au> > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Ian McDonald > *Sent:* Monday, 10 February 2014 5:57 AM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > > > Whether that 1G is divided between 10 or 50 devices, it's still a ton of > bandwidth. We appear to be having to increase density to compensate for low > client tx outputs, and poor antenna design. > > Thanks > > -- > ian > > Sent from my phone, please excuse brevity and misspelling. > -- > > *From: *Julian Y Koh > *Sent: *09/02/2014 16:56 > *To: *WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject: *Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > On Feb 9, 2014, at 02:29 , Ian McDonald wrote: > > > > Design guides now are indicating an access point in every other room. > Where is all this bandwidth meant to go? > > Isn't this more being driven by supplying a reliable signal/coverage area > especially as client device density goes up and even more especially in > construction settings where propagation is challenging? > > > -- > Julian Y. Koh > Acting Associate Director, Telecommunications and Network Services > Northwestern University Information Technology (NUIT) > > 2001 Sheridan Road #G-166 > Evanston, IL 60208 > 847-467-5780 > NUIT Web Site: <http://www.it.northwestern.edu/> > PGP Public Key:<http://bt.ittns.northwestern.edu/julian/pgppubkey.html> > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"Resentment is like drinking poison and then hoping it will kill your enemies." - Nelson Mandela* *"You should not believe everything you read on the Internet" -Benjamin Franklin* *I asked God for all things, so I could enjoy life* *God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer "The great aim of education is not knowledge but action." *- Herbert Spencer* ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] How many drops 802.11ac phase 2
Every CURRENT (Wave 1) 802.11ac AP with the exception of Cisco has TWO Gig NICs. Cisco will add the second NIC with Wave2 Unless you plan to remain a Cisco Wave1 user forever. the answer is two. The TSB-162A calls for Cat6a cabling to Access Points On Fri, Feb 7, 2014 at 10:16 PM, Dan Brisson wrote: > I may be crazy but what if the 2nd cable isn't only about adding another > gig of bandwidth, but also that it provides a second source of power. > Right now 802.3at is good for wave 1, at least with Cisco, but do we know > what the power budget for wave 2 is? > > Not having to forklift 802.3at switching/mid-spans is a big deal, I think. > > -dan > > > Dan Brisson > Network Engineer > University of Vermont > (Ph) 802.656.8111dbris...@uvm.edu > > On 2/7/14, 10:08 PM, Jason Cook wrote: > > We have also always run 2 for AP's and everything else, it's always a > pair(or 4, 6, 8etc) whether for phone, computer, projects, ip camera, bms > ,wireless etc. We've investigated singles a few time, but barely a 20% > drop in price so we have continued with 2. Each building has a standard, > so we remain with that, if the building is Cat 6, then the new duals are 6 > if it's 6a then we run that. New buildings/reno's are all 6a. Often enough > we have found the extra port gets used, particularly for lower ports, but > even in roof space for ip camera's and projects for example and vice versa. > > > > I generally agree at the moment though that it's unlikely we'll see any > major requirement for more than 1Gbps in the near future Can we actually > run 160 channel width in high density? 802.11ad might be a different story, > but that's a while away and would require re-design and new cabling anyway. > > > > > > > > > > > > > > > > > > -- > > Jason Cook > > The University of Adelaide, AUSTRALIA 5005 > > Ph: +61 8 8313 4800 > > e-mail: jason.c...@adelaide.edu.au<mailto:jason.c...@adelaide.edu.au> > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] > *On Behalf Of *Mike Albano > *Sent:* Saturday, 8 February 2014 4:31 AM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* Re: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > > > We always run 2 cables per drop location (wireless or otherwise). > > Bulk of the cost is labor, so makes sense to do so. > > > > Mike Albano > > UNLV > > > > -The EDUCAUSE Wireless Issues Constituent Group Listserv < > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> wrote: - > > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > From: Brian David > Sent by: The EDUCAUSE Wireless Issues Constituent Group Listserv > Date: 02/07/2014 06:54AM > Subject: [WIRELESS-LAN] How many drops 802.11ac phase 2 > > All, > > I wanted to see how many people were planning on running 2 drops to > 802.11ac phase 2 access points? > > Currently we are just doing a one for one swap when replacing an older > a/b/g AP's with 802.11ac phase 1 AP's > > When you have new construction, do you plan on running 2 drops so when > phase 2 come into play you will be all set for it? > > > > > > *Brian J David * > > *Network Systems* > > *Boston College* > > > > > > **Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"Resentment is like drinking poison and then hoping it will kill your enemies." - Nelson Mandela* *"You should not believe everything you read on the Internet" -Benjamin Franklin* *I asked God for all things, so I could enjoy life* *God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer "The great aim of education is not knowledge but action." *- Herbert Spencer* ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. <>
Re: [WIRELESS-LAN] Access points and moisture
ARUBA Specs environmental • Operating: - Temperature: 0° C to +50° C (+32° F to +122° F) - Humidity: 5% to 95% *non-condensing* On Fri, Dec 20, 2013 at 4:22 PM, Harvard Townsend < harvard.towns...@wheaton.edu> wrote: > We are installing new access points in our residence halls and have a > question about their tolerance of moisture. In one residence hall the > current access points are mounted above a drop ceiling in bathrooms shared > by two bedrooms on either side of the bathroom (i.e., a suite). To reduce > signal attenuation, we want to mount the new APs below the ceiling. > However, each bathroom has a shower and college students like to take long, > hot showers. It's certainly not ideal to expose an AP to that much > moisture, but will it dramatically reduce the life of the AP? We are > installing Aruba AP-115 access points. FWIW, we have had zero > moisture-related failures of the current APs that are above the ceiling > tile, but clearly the exposure will be considerably worse below the tile. > Of course, the APs have a lifetime warranty so maybe we shouldn't worry > about it. :-) What are your thoughts/experience? > Thanks, > -- > Harvard Townsend > Manager of Networking, Systems, and Storage > Wheaton College, IL > Email: harvard.towns...@wheaton.edu > Voice: (630)752-5528 > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"Resentment is like drinking poison and then hoping it will kill your enemies." - Nelson Mandela* *"You should not believe everything you read on the Internet" -Benjamin Franklin* *I asked God for all things, so I could enjoy life* *God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer "The great aim of education is not knowledge but action." *- Herbert Spencer* ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Sickness for rf
I would be curious to know if those students have given up their cell phones as the power is at least 30 times greater than an AP at full power and held next to their brain instead of on the ceiling. -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"You should not believe everything you read on the Internet" -Benjamin Franklin* * * *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * * * * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] SV: Sickness for rf (802.11)
I would love to know if they have abandoned their cell phones as the power radiated is at least 30 times more, and the transmitter is held next to their brain as opposed to 8-10 feet away. Ron Walczak On Sat, Aug 31, 2013 at 12:37 PM, Tony Dallas wrote: > For the last few years we have had a handful of APs unplugged in student > dorms > due to RF "fears". This behavior usually stops around the beginning of > October. > > > > > Tony Dallas > > > > > On 8/31/13 11:06 AM, "Anders Nilsson" wrote: > > >Not yet but as we're increasing the coverage of our campus with more AP:s > >I'm just waiting for that to happen. > > > >I've experienced the RF sensitive person is less likely to suffer if > >he/she > >can't the AP so concealing it is maybe a good strategy. ;) Here in Sweden > >there's an ongoing debate whether this is a medical or psychological > >condition. > > > >Cheers > >Anders Nilsson > >Umeå University > >Sweden > > > >-Ursprungligt meddelande- > >Från: The EDUCAUSE Wireless Issues Constituent Group Listserv > >[mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] För Hurt,Trenton W. > >Skickat: den 31 augusti 2013 16:40 > >Till: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > >Ämne: [WIRELESS-LAN] Sickness for rf (802.11) > > > >So I had to turn off aps for a person on my campus for areas they where > >visiting due to rf sickness. They provided a dr note too. Has anyone > >every > >had a request for something like this? > > > >Sent from my iPhone > >** > >Participation and subscription information for this EDUCAUSE Constituent > >Group discussion list can be found at http://www.educause.edu/groups/. > > > >** > >Participation and subscription information for this EDUCAUSE Constituent > >Group discussion list can be found at http://www.educause.edu/groups/. > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"You should not believe everything you read on the Internet" -Benjamin Franklin* * * *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * * * * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Survey For WiFi and Cellular in One Pass?
iBwave On Fri, Mar 15, 2013 at 6:01 PM, Curtis K. Larsen wrote: > Hello, > > Just curious if anyone has come across software that will let you do > site surveys for WiFi and Cellular in one Pass. We're going to go thru > 340 buildings and would like to do 340 surveys not 680. Let me know. > > Thanks, > > Curtis Larsen > University of Utah > Wireless Network Engineer > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Boosting cell phone signal in residence hall
This unit is for carriers to piggy back on your LAN - you are not going to purchase install legally - these are licensed frequencies. >From the data sheet - "The 3G Small Cell Module delivers *mobile operators* ..." Bottom line - the carriers own the frequencies - you do nothing without their approval - or face legal consequences when they catch you interfering with their bread and butter. Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * On Thu, Mar 14, 2013 at 12:21 PM, Steve Bohrer wrote: > On Mar 14, 2013, at 10:34 AM, Garret Peirce wrote: > > > Anyone catch this? A 3G small cell submodule for the Cisco 36xx?? > > > > http://www.cisco.com/en/US/products/ps12976/index.html > > > > I'm pretty clueless about this cell phone stuff, so perhaps this is > obvious, but, the data sheet linked above says, "Standards-based. The 3G > Access Module operates as a Home Node B (HNB) in the standard 3GPP > Architecture for small cells, and is connected to the network with the > specified Iuh interface. This architecture provides for rapid deployment > and multivendor interoperability." > > Does that mean this system works similarly to a "homeowner-style" > microcell, in which the device is tied to the owner's cell plan, and only > specified phones can connect? > > Or, can it work like an actual cell tower, and let any phone connect using > that phone's own plan. > > I'm not sure the first case would be useful in a dorm, though it would > possibly be useful for staff who had college-owned phones. > > Steve Bohrer > Network Admin, ITS > Bard College at Simon's Rock > 413-528-7645 > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] AP Life Cycle
802.11n was ratified 6+ years after 802.11g I believe functionality - not equipment life cycle has driven the replacement timeline for most 802.11ac is coming and the cycle will start again Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * On Mon, Feb 11, 2013 at 10:50 AM, John Kaftan wrote: > Just to follow up, I got 7 replies including my own data. > > The average time to replace APs was 7.6 years. Responses ranged from 4 at > the lowest to 10 (yours truely) at the highest. > > I'm not actually advocating for 10 years but if it is still viable we will > push that number again. > > Most people said 6-7 years for APs. > > John > > On Wed, Feb 6, 2013 at 11:59 AM, Gavin Pyle wrote: > >> We’re on a six year cycle with most of our equipment, which would >> normally include APs. However, we’ve found that students like to fund >> anything that directly benefits them such as having a current and reliable >> wireless network, so we’re generally able to get money for AP refresh from >> the tech fee budget. We then can trickle down the APs replaced to areas >> that mostly serve faculty and staff, making everyone happy. >> >> ** ** >> >> >> --- >> >> >> Gavin Pyle | Network Engineer | Green River Community College >> >> gp...@greenriver.edu >> >> ** ** >> >> *Breathe easy – Green River is now >> tobacco-free!<http://www.greenriver.edu/about-grcc/policies-and-procedures/new-policies/ga-02-tobacco-use.htm> >> * >> >> ** ** >> >> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: >> WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Carlton, Rick >> *Sent:* Wednesday, February 06, 2013 8:12 AM >> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU >> *Subject:* Re: [WIRELESS-LAN] AP Life Cycle >> >> ** ** >> >> We have a technology refresh / lifecycle program that includes AP’s. We >> replace AP’s on a four year cycle. This has been very beneficial in moving >> us from b > g > n, and from autonomous to controller. We refresh roughly >> 25% of campus each year. >> >> ** ** >> >> Rick >> >> ** ** >> >> ** ** >> >> *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv >> [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *John Kaftan >> *Sent:* Wednesday, February 06, 2013 9:27 AM >> *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU >> *Subject:* [WIRELESS-LAN] AP Life Cycle >> >> ** ** >> >> I am wording how many of you have your APs as part of your IT replacement >> cycle. If so how long are you planning on keeping them? We have had ours >> for 10 years and I am making the case to replace them. >> >> >> >> Thanks >> >> -- >> >> John Kaftan >> >> IT Infrastructure Manager >> >> Utica College >> >> ** ** >> >> ** Participation and subscription information for this EDUCAUSE >> Constituent Group discussion list can be found at >> http://www.educause.edu/groups/. ** ** >> >> ** Participation and subscription information for this EDUCAUSE >> Constituent Group discussion list can be found at >> http://www.educause.edu/groups/. ** ** >> ** Participation and subscription information for this EDUCAUSE >> Constituent Group discussion list can be found at >> http://www.educause.edu/groups/. >> >> > > > -- > John Kaftan > IT Infrastructure Manager > Utica College > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] students per AP in residence halls
Tom, If you don't mind free advice from a consultant/vendor - drop me a line off-list Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * On Fri, Jan 11, 2013 at 9:50 AM, Tom O'Donnell wrote: > I was wondering what other schools have for a ratio of students to > AP's in the residence halls, either definitely or approximately? > > If you have such a number, how do you count dual-band AP's? They're > doing more than a 2.4GHz AP, but not quite as much as two AP's. > > Then one last related question... Would anyone know their relative mix > of 2.4GHz vs. 5GHz connections in residence halls? > > Thanks. > > -- > Tom O'Donnell > Senior Manager of Network and Server Systems > Information Technology Services > University of Maine at Farmington > (207) 778-7336 > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Wireless and health issues
An access point max power is 100mw (usually operating at 12-25 mW) - and it is mounted 8' or higher a cell phone is 750-1,000 mM and is held next to the skull. just sayin On Mon, Jan 7, 2013 at 12:15 PM, Craig Eyre wrote: > Hi All, > > I recently had a staff member ask for a report or document stating how > dangerous wireless is to their health. Has anyone else been asked this > before and can you direct me or send me the info that you provided to that > person or department? > > Thanks for any help or info on this subject. > > > Craig Eyre > Network Analyst > IT Services Department > Mount Royal University > 4825 Mount Royal Gate SW > Calgary AB T2P 3T5 > > P. 403.440.5199 > E. ce...@mtroyal.ca > > "The difference between a successful person and others is not a lack of > strength, not a lack of knowledge, but rather in a lack of will." Vincent > T. Lombardi > > > > > > This communication is intended for the use of the recipient to which it is > addressed, and may > contain confidential, personal, and or privileged information. Please > contact the sender > immediately if you are not the intended recipient of this communication, > and do not copy, > distribute, or take action relying on it. Any communication received in > error, or subsequent > reply, should be deleted or destroyed. > __ > This communication is intended for the use of the recipient to which it is > addressed, and may contain confidential, personal, and or privileged > information. Please contact the sender immediately if you are not the > intended recipient of this communication, and do not copy, distribute, or > take action relying on it. Any communication received in error, or > subsequent reply, should be deleted or destroyed. > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I asked God for all things, so I could enjoy life** God gave me life... so that I could enjoy all things* I am easily satisfied with the very best. ~Winston Churchill~ "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] interesting design recommendation from ......
I agree with Lee The challenge is to create physically small cells to support throughput requirements. If the APs are in an open room with nothing between them - the management system is killing itself trying to adjust for co-channel interference. Cisco RRM will shut them down to the lowest power setting which still may not be enough for the three channel 2.4 Ghz channel selection. Anything you can do to create some RF barriers (or segmented antenna patterns between APs and users will help. Of course Xirrus will tell you their pizza slice antenna array will solve all your problems ;-) On Wed, Nov 28, 2012 at 9:23 AM, Gogan, James P wrote: > We currently have a mix of Cisco (legacy) and Aruba (last two years) APs > (although we're good at keeping any given building single brand, as much as > possible). We've generally gone with an engineering rule of thumb of > 20-30 clients per access point. > > ** ** > > We've noticed issues with channel flapping and inadequate load balancing > on our Aruba APs in large classrooms where we have, based on our client per > AP engineering, large numbers of APs.After an on-site visit from an > Aruba engineer, his comment was that we have TOO MANY APs in our classrooms > and high density areas.His recommendation (using the Aruba AP135s) was > that we design based on 80 clients per AP (minimum 50, average 80, max > 100), and to design based on 50 clients per AP for the older AP125s. > > ** ** > > I'd be curious to know what others think about that recommendation -- > seems pretty significantly different from everything we've been told and > designed for in the past. (BTW, the engineer also noted that he's not a > sales guy and the sales guys would suggest differently -- figures). > > ** ** > > Thoughts? > > ** ** > > -- Jim Gogan > > ITS-Networking > > Univ of North Carolina at Chapel Hill > > ** ** > > ** ** > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 "Worry looks around; sorry looks back; faith looks up; virtue looks forward" - Unknown "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Betr.: Re: [WIRELESS-LAN] Cisco Just Bought Meraki
Apparently, Cisco likes Aerohive's strategy of cloud-based management of access points as well ;-) On Mon, Nov 19, 2012 at 3:24 AM, Kees Pronk wrote: > Info: > > http://www.meraki.com/company/cisco-acquisition-faq > > Kees > > >>> Jason Cook 19-11-2012 4:39 >>> > Does this mean there's hope for Prime/NCS/WCS/whatever they call the next > interim? > > Cisco Systems Inc., the world's largest maker of computer networking gear, > said Sunday it is buying Meraki for $1.2 billion to expand its ability to > let customers compute in the cloud. > > Rob Soderbery, senior vice president, Cisco Enterprise Networking Group, > said in a statement, "Meraki's solution was built from the ground up > optimized for cloud, with tremendous scale, and is already in use by > thousands of customers to manage hundreds of thousands of devices." > > -- > Jason Cook > Technology Services > The University of Adelaide, AUSTRALIA 5005 > Ph: +61 8 8313 4800 > > From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Pete Hoffswell > Sent: Monday, 19 November 2012 11:07 AM > To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > Subject: Re: [WIRELESS-LAN] Cisco Just Bought Meraki > > Meraki - > > Welcome to the Dark Side. > > - Darth Cisco > - > Pete Hoffswell - Network Manager > pete.hoffsw...@davenport.edu<mailto:pete.hoffsw...@davenport.edu> > http://www.davenport.edu > 616-732-1101 > > On Sun, Nov 18, 2012 at 7:30 PM, Lee H Badman lhbad...@syr.edu>> wrote: > Is all over the media... As a customer of both companies, I hope the > Meraki way of life survives the transition. > > Lee Badman > > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > > > --- > Op deze e-mail zijn de volgende voorwaarden van toepassing: > The following conditions apply to this e-mail: > http://emaildisclaimer.avans.nl > --- > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 "Worry looks around; sorry looks back; faith looks up; virtue looks forward" - Unknown "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] 802.11N Design
Ekahau has a built in selection of client adapters that simulate end user results - you can select various laptop, IPphones, etc. Still waiting for an ipad/droid selection. You can manually reduce client power to customize. As user densities increase - shift your process to creation of small cells at low power to reduce the number of active (shared) associations per AP. I survey at 25 mW for 5.8G and 12.5 mW for 2.4G. This is the same strategy used by cellular carriers and DAS systems. -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 "Worry looks around; sorry looks back; faith looks up; virtue looks forward" - Unknown "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Wireless Services and Design Standards
Rita, The explosion of BYOD creates high density situations that can only be addressed with MORE APs in the space. The ipads and other devices do not have the same send/receive capabilities as laptops - requiring a stronger signal from the APs - Those two requirements work against you due to the limited 2.4Ghz channel selections of 1-6-11 - you cannot just turn up the power to reach the devices without creating interference. I have been advising clients for years to push every device possible to the 5.8Ghz band - more channels means more APs in the same space without interference. I design for -66dB signal strength and >25dB sig to noise ratio. This will accommodate VoWiFi as well as the ipads. Don't forget stairwells, elevators and mechanical spaces. A lot of HVAC equipment is now WiFi capable (although in the 2.4 Ghz band due to battery life issues). Hope that helps Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 "Worry looks around; sorry looks back; faith looks up; virtue looks forward" - Unknown "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Android wifi continually receiving data bursts
When you activate the wifi connection on a mobile device, you are activating a second radio - so it stands to reason that battery life will suffer. Additional battery killers are GPS and auto-updates for installed APs. The cell companies have learned that the closer a device is to a transmitter, the lower the power requirements for the device. This is a "selling point" for DAS installations - Spend a couple hundred thousand on more antennae and your users won't have to charge their battery at noon. (OK, that might be a loose paraphrase) On Tue, Jul 3, 2012 at 5:07 PM, Hurt,Trenton W. wrote: > I have started getting complaints from users regarding battery life on > android devices when connected to our campus wifi. The issue is being seen > when you install a type of bandwidth meter app on the device. The one I > use is android status and I look at the network section to see the Rx and > Tx statistics. Once connected to wireless the device still receives bursts > of traffic, at least according to the app on the device. We are cisco wifi > shop and I’m running 7.2mr1 code on the wlc’s. Has anyone else heard or > seen this issue? > > ** ** > > ** ** > > I found this post > http://forum.xda-developers.com/showthread.php?t=1738171 which states…** > ** > > ** ** > > *This is simply because your wifi antenna still "hears" the data going > through the wireless network on which you are connecter. Even if your phone > doesn't asks for any data at the moment the traffic there is on the network > will still be counted by the wifi chip on your phone. > > It will be the same on any public network or if you have another phone or > a computer connecter on the same wireless router and generating traffic.* > > ** ** > > ** ** > > I have tried to increase the DTIM setting on one of the wlans and it > didn’t help. Any suggestions? > > ** ** > > Thanks > > Trent > > ** ** > > ** ** > > ** ** > > Trenton Hurt, CWNA, CCNP(W), CCNA(W), CCNA(V), CCNA(R/S) > Wireless Network Administrator > University of Louisville > Phone (502) 852-1513 > FAX (502) 852-1424 > [image: Description: Description: > C:\Users\twhurt01\AppData\Local\Temp\XPgrpwise\IMAGE_19.BMP]**** > > ** ** > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] shielding 2.4 from interference
Peter, The easiest way to determine if the device is creating a health problem is to invest $35 on one of these: http://www.comforthouse.com/micleakdetwi.html?cmp=pla&kw=micleakdetwi&gclid=COugpoyxgrECFUYCQAodgXD5FA You can get cheaper devices for under $20 but this is a nice middle of the road device with a digital readout. I would walk the campus and test ALL microwave devices to establish a safety and frequency baseline. with that said, its doesn't take much to overpower wifi. The 2.4 band is notorious for interference issues which is why manufacturers of APs provide band steering to get the clients to connect at 5.8. On Tue, Jul 3, 2012 at 11:00 AM, Peter Murphy wrote: > Wayne State http://wayne.edu has been getting complaints concerning > wireless connectivity, especially in our Allied Health building. We may > have found the problem with a spectrum analyzer: a magnetic imaging machine > adjacent to some of the larger classrooms was completely over-powering > 2.4GHz channel 11, and showing across the band. > > I am seeking some suggestions for shielding, which I will pass along to > that Dean. I have seen paint, paneling and curtains. Replacing wall panels > is probably out, as they do have some lead shielding for some of the > medicines involved. What have you seen that worked or failed horribly? > > -- > Peter Murphy > Interim Director Network Engineering & Security > Wayne State University > pmur...@wayne.edu > v: 313-577-4737 > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at > http://www.educause.edu/**groups/<http://www.educause.edu/groups/> > . > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Aruba Point to Point (PTP)
Brian If you plan to use 802.11 technology, I would recommend the following: 1. Assume you will be in the 5.8 Ghz band – 2.4 is too crowded and severely affected by anything with water molecules (trees, leaves, fog, rain, etc). 2. Get on the roofs of each building with a WiFi tester (anything that can tell you what channels it sees – free apps are available on smartphones) to see if you have any clear channels (you probably do). 3. Select very directional antenna for each site to minimize outside interference. A grid antenna like these will get you a good connection: http://www.terra-wave.com/shop/5-ghz-antennas-5-ghz-parabolic-dish-grid-antennas-c-33_62_67.html Note: these antennae are NOT MIMO and will connect to only ONE antenna port on your AP. You will need to disable the remaining ports. Finally, recognize that you will be limited to 802.11 throughput which could become a bottleneck if you have a lot of users at the remote site. Hope that helps *Ron WalczakPMP, RCDD, CWNA/CWSP* *Walczak Technology Consultants, Inc* *(724) 865-2740* "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple;** ** but only God can count the apples in a seed*. On Wed, Jun 13, 2012 at 8:13 AM, Brian David wrote: > All, > > I wanted to get peoples perspective on their PTP wireless deployment. > > How reliable is it for you. How much does the weather affect it? > > How much through put are you getting and in what frequency are you using?* > *** > > We are looking to have a temporary deployment for a particular building > that is less than > > a mile away and has excellent line of sight. > > Any input would be great. > > Thank you in advance. > > ** ** > > *Brian J David* > > *Network Systems Engineer* > > *Boston College* > > *[image: Description: bc logo small]* > > * * > > ** ** > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 "Not to speak is to speak. Not to act is to act." - Dietrich Bonhoeffer * ** * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/. <>
Re: [WIRELESS-LAN] Sponsored SSID?
If it ain't red... it ain't BBQ 'nuf said On Tue, May 15, 2012 at 9:53 AM, Hanset, Philippe C wrote: > Lee, > > In Knoxville, TN we have Buddy's Barbecue (AKA Buddy's BBQ), > and we cannot resell an SSID as a state school. > I believe there is an Educause AUP about not mentioning BBQ before 11 a.m. > EST. Supposedly it creates various unwanted Pavlov conditionings > within our community. Also, next thing you know, the Eastern North > Carolina guys will argue how best their BBQ is compared > to the Western North Carolinas guys...and don't even throw Alabama in the > mix, or for that matter, any Southern state ;-) > > Philippe > > Philippe Hanset > Univ. of TN, Knoxville > www.eduroamus.org > > > p.s. Disclaimer: there is no Educause AUP about BBQ ;-) > > On May 15, 2012, at 9:07 AM, Lee H Badman wrote: > > For context, this is nothing more than a curious notion. > > Other than the likes of the AT&T outsourced model, has anyone ever gone > the path of "selling" an SSID for one of your own wireless networks? > Something like "WirelessByBubba'sBarbeque" kinda thing? > > (Mmmm. Barbeque...) > > Thanks- > > Lee Badman > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > > > > > > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I plan to live forever - so far, so good!* * * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] 4-channels in 2.4 GHz
Joel, You last comment hit the nail on the head. We have been advising clients to migrate to 5.8 Ghz ASAP for years. 2.4 Ghz is a garbage band and all the rogues make it impossible to gain any density and throughput. While you may be adhering to 1-6-11, the rogues may not be, and many enterprise installations just set the wireless management to "auto" not realizing that many APs will end up on odd channels to avoid rogues that are on 1-6-11. You just cannot win in 2.4 Ghz. If your wireless management has band steering - use it to push clients to the higher band. Also, if you limit 2.4 Ghz associations to the higher connection speeds - you will at least help to force your clients to the best connection Ron Walczak PMP, CWNA, RCDD On Tue, May 8, 2012 at 3:38 PM, Coehoorn, Joel wrote: > Phillippe, this is something I would **love** to be shown to be wrong > about. > > I think all of us could benefit from a 4th channel (I know I would), if it > comes with clear guidelines for when and how to use it in a way that will > increase rather than decrease throughput. Right now, the best guidelines we > have say, "Stick with 1,6, and 11." Deviation from that is more likely than > not to result in pain. > > Perhaps what is needed is more successful 4 channel implementations for > study, but I think we're likely to see mainstream 5ghz make this all > obsolete by then. > > >Joel Coehoorn > IT Director > York College, Nebraska > 402.363.5603 > jcoeho...@york.edu > > > > > > > On Tue, May 8, 2012 at 2:19 PM, Hanset, Philippe C wrote: > >> >> On May 8, 2012, at 3:00 PM, Coehoorn, Joel wrote: >> >> The short answer is "no". It comes down to the skirts again. Most >> low-end tools to measure wireless coverage do a poor job of showing this, >> but my understanding is that wifi RF is such that the skirts "flare out" >> quickly, and you have nearly all of the signal overlap even at fairly low >> power levels. These wide skirts makes it impractical to try for four >> channels... you're almost as bad off as if you tried to use all eleven. >> >> >> Joel, >> >> You forgot the "black magic" part of wireless ;-) >> We didn't go with theory back in 2000, but with measurements. >> In a large auditorium with 100+ users and 4 APs, we were getting better >> throughput with 1-4-8-11 >> than with 1-6-11-1. We didn't play with smaller cells. >> >> Philippe >> >> Philippe Hanset >> Univ. of TN, Knoxville >> www.eduroamus.org >> >> >> >> ** Participation and subscription information for this EDUCAUSE >> Constituent Group discussion list can be found at >> http://www.educause.edu/groups/. >> >> > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I plan to live forever - so far, so good!* * * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Battery packs for portable AP setups?
An image flashed Cisco 3500i will drain an APC 1500VA UPS in 2.5 - 3.0 hours :( less if you add a controller On Fri, Apr 27, 2012 at 3:34 PM, Chuck Enfield wrote: > I’ve done about 6 hours of site survey with a dual-radio 802.11a/g AP > (estimated 9 Watts) using a consumer-grade 350VA UPS that cost about $50. > It’s not that the UPS died after 6 hours, it’s just that that’s all I > needed on battery. I don’t know how long it could have gone. > > ** ** > > Chuck Enfield > > Sr. Communications Engineer > > Telecommunications & Networking Services > > The Pennsylvania State University > > 110H, USB2, UP, PA 16802 > > ph: 814.863.8715 > > fx: 814.865-3988 > > ** ** > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] *On Behalf Of *Lee H Badman > *Sent:* Friday, April 27, 2012 2:59 PM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* [WIRELESS-LAN] Battery packs for portable AP setups? > > ** ** > > Wondering if anyone has put together (or found commercially) a > non-behemoth battery solution for deploying mesh APs for X number of hours, > for event support? > > ** ** > > -Lee Badman > > > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- Ron WalczakPMP, RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *I plan to live forever - so far, so good!* * * "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Unregistered wireless devices
Don't forget the Smartnet! -- *Ron Walczak RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 **I intend to live forever so far, so good.* "The great aim of education is not knowledge but action." *- Herbert Spencer * * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] N analysis tool
A good tool lets you set the adapter to act like your target client! You should be able to choose in the setup. On Thu, Apr 28, 2011 at 2:39 PM, Rick Brown wrote: > We did some testing with the Fluke Aircheck and compared them to readings > taken with netstumbler, wi-spy, Cisco site survey, and several phones and > tablets loaded with various software apps. > > We found that the Aircheck consistently read 15-20 dbm better than the > other devices. If you're simply doing troubleshooting they are great > devices. If you're using them for manual designs I'd be wary. The last > thing I'd want to do is think I'm designing a -67dbm cell and find that in > reality my border is really > sitting at -82dbm. > > I've heard that they're dumbing them down so to speak so they tend to match > signal levels of typical design tools. > > Rick > > > > On 4/28/2011 2:25 PM, Steve Hess wrote: > > Sorry to hijack but does anyone have experience using Fluke's AirCheck > tester? > > Steve > > Lee H Badman wrote: > > Brian, > > > > While thrift is generally good, I’d recommend investing in at least one > instance of a commercial-quality analyzer along the lines of AirMagnet Pro. > There’s merit to having a few of the great free tools out there (I’m a fan > of Xirrus’s free wireless tool and Meraki’s browser-based utility), but > these are only as good as the machine that you run them from and so can > provide a range of results. With one “real” tool, you get a reliable > perspective and eyes into anything you’d ever have to worry about. > > > > Given the growing importance of wireless, shoestring support only goes so > far any more. At the same time, you don’t have to go broke buying a decent > support platform either. > > > > Cheers- > > > > Lee > > > > Lee H. Badman > > Wireless/Network Engineer > > Information Technology and Services > > Adjunct Instructor, iSchool > > Syracuse University > > 315 443-3003 > > > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] > *On Behalf Of *Kellogg, Brian D. > *Sent:* Thursday, April 28, 2011 11:04 AM > *To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU > *Subject:* [WIRELESS-LAN] N analysis tool > > > > We will be starting the process to move from A/B/G to N access points this > summer. I do not have any hardware to do N analysis with presently. Any > recommendations for cheap devices/laptops and software to use for this > purpose? I've looked at the Metageek Wi-Spy device and software, but > wondering what other cheap alternatives others are using for spectrum > analysis, signal strength, and such. > > > Thanks, > Brian > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- > > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1209 / Virus Database: 1500/3602 - Release Date: 04/28/11 > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > > -- > - > Steve Hess > Network Administrator > Wheaton College > Phone: 508-286-3404 > Fax: 508-286-8270 > ----- > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > > > -- > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- *Ron Walczak RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"The great aim of education is not knowledge but action." *- Herbert Spencer* * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] N analysis tool
Brian, Wi-Spy is not the right tool - if you are concerned about understanding not only signal strength - but quality and *throughput *- you have to go with an enterprise tool like Ekahau or Airmagnet. (I'm partial to Ekahau as I have been using it for about 8 years now). *Ron Walczak RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"The great aim of education is not knowledge but action." *- Herbert Spencer* * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. On Thu, Apr 28, 2011 at 11:04 AM, Kellogg, Brian D. wrote: > We will be starting the process to move from A/B/G to N access points this > summer. I do not have any hardware to do N analysis with presently. Any > recommendations for cheap devices/laptops and software to use for this > purpose? I've looked at the Metageek Wi-Spy device and software, but > wondering what other cheap alternatives others are using for spectrum > analysis, signal strength, and such. > > > Thanks, > Brian > > ** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at http://www.educause.edu/groups/. > -- *Ron Walczak RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"The great aim of education is not knowledge but action." *- Herbert Spencer* * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: [WIRELESS-LAN] Unknown Interfering Device
It sounds like a frequency hopping spread spectrum (FHSS) device, something that expects uninterrupted connectivity.- usually associated with a phone. It could also be a wireless game controller, wireless speakers, etc. Do you have a directional antenna for your Cognio? Time to go on a treasure hunt! *Ron Walczak RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"The great aim of education is not knowledge but action." *- Herbert Spencer* * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. On Tue, Apr 19, 2011 at 12:34 PM, Barber, Matt wrote: > Hi all, > > > > I am currently troubleshooting an issue in one of our residence halls that > appears to be related to some kind of non-802.11 wireless device. Cognio > (now Cisco of course J ) Spectrum Expert shows an unknown 2.4 GHz device, > sometimes taking up to 90% of the duty cycle on seemingly random channels in > 2.4 GHz. It has affected every channel between 1 and 13, and is always very > strong and busy. > > > > I have seen cordless phones, video cameras, and microwaves interfere in the > past, but this doesn’t quite look like those. Cognio doesn’t match it to a > signature either. Anybody seen anything like this, especially recently? This > problem apparently started a few weeks ago, so I am wondering if someone > brought something new and shiny back after spring break. > > > > Thanks! > > > > *Matt Barber* > > Network and Systems Manager > > Morrisville State College > > 315-684-6053 > > > ** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/. > > -- *Ron Walczak RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"The great aim of education is not knowledge but action." *- Herbert Spencer* * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Re: WIRELESS-LAN Digest - 11 Mar 2011 to 14 Mar 2011 (#2011-36)
Some thoughts: 1. The costs cited blew me away - we have surveyed over 8 million square feet in the last 9 years, mostly on campuses and in hospitals. $1,500-$1,800 a DAY, not a floor! 2. A 3 story dorm is probably 3-4 hours including setup and tear down. Another hour to create the reports. 3. While you can buy Ekahau or Air Magnet, you still must understand RF to design around the unique obstacles presented by various types of construction and sources of interference. Unless you are surveying open offices, you WILL find surprises. 4. There is a difference between having signal and having capacity. 5. A good designer is also looking for all the issues associated with cabling the access point (mounting locations, obstructions, cable routes, distances). 6. The test AP requires a controller, a UPS, a means for getting it around and in place, and the knowledge of the software and characteristics of the unit being tested. -- *Ron Walczak RCDD, CWNA/CWSP* ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
Site Survey Tools
Folks, some things to know: - I've been using Ekahau for 10 years. It is very good, but you still have to understand what you are looking at. - As mentioned in previous posts, readings are card specific. You have to realize that a hand held phone is going to be much less sensitive than an external antenna You need the Ekahau sensor if you want signal to noise ratio (the most important metric) - (yes, the USB sensor is very convenient, but also very sensitive). - You have to understand how to adjust your findings. - Also, do NOT use the built in settings for voice - they are not sensitive enough. You have to understand the handsets you are using and what they require. - It has been the engine for Fluke, Nortel and NEC branded "tools" - The new Android software is only good for checking installed systems, not for design. If you have a design already done in the Site Survey software, the Android version will verify all APs are active. In the Beta testing, I told Ekahau it should be a freebie - they charge $299 -not worth it. With all that said, please don't go buy site survey/design software and give it to an untrained or inexperienced person who does not understand RF. You will be disappointed with your results (too many AP's or not enough). -- *Ron Walczak RCDD, CWNA/CWSP Walczak Technology Consultants, Inc (724) 865-2740 *"The great aim of education is not knowledge but action." *- Herbert Spencer* * **Anyone can count the seeds in an apple; but only God can count the apples in a seed*. ** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
