They certainly are using some strange math, my experience (and that of other institutions nearby) is that the vast majority of my N access points don't suffer from being connected to 100M poe switches, and in the places we have 1G to them, they generally don't use more than 100M.
Thanks -- ian Sent from my phone, please excuse brevity and misspelling. ________________________________ From: Hanset, Philippe C<mailto:phan...@utk.edu> Sent: 18/12/2013 19:33 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] 802.11AC Future Infrastructure And the WLAN industry also does strange math ;-) A lot of services are going to the Cloud, mostly using your pipe to the Internet. It seems that, progressively or even rapidly, the limiting factor is not Wi-Fi anymore but rather the pipe to the internet. 1 Gbps to each Wireless AP is a lot of bandwidth! and a lot of oversubscription all around (edge, distribution, core, WAN) Unless you plan to distribute UHDTV (8K TV) to your dorms, I wouldn't worry about getting more than 1 Gbps to each AP for a long time. Also most of 802.11ac APs are fine with 802.3af! Philippe Hanset www.eduroam.us<http://www.eduroam.us> On Dec 18, 2013, at 12:56 PM, Lee H Badman <lhbad...@syr.edu<mailto:lhbad...@syr.edu>> wrote: The WLAN industry is doing an absolutely horrible, almost shameful job of managing the message on cabling for 11ac, says I. Lee Badman Network Architect/Wireless TME ITS, Syracuse University 315.443.3003 -----Original Message----- From: Turner, Ryan H [rhtur...@email.unc.edu<mailto:rhtur...@email.unc.edu>] Received: Wednesday, 18 Dec 2013, 12:52 To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> [WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>] Subject: Re: [WIRELESS-LAN] 802.11AC Future Infrastructure BTW… Before anyone jumps on me, I understand the purpose of the question. It’s great to know the best practices for the ‘what if’ situation. Ryan H Turner Senior Network Engineer The University of North Carolina at Chapel Hill CB 1150 Chapel Hill, NC 27599 +1 919 445 0113 Office +1 919 274 7926 Mobile From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:l...@listserv.educause.edu>] On Behalf Of Turner, Ryan H Sent: Wednesday, December 18, 2013 12:47 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: Re: [WIRELESS-LAN] 802.11AC Future Infrastructure Call me naïve, but I think 10 gig uplinks for ac WAPs is serious overkill. We have almost 4,500 switches across campus, most with 1 gig user uplinks, and the vast majority are perfectly fine with 1G (heck, we could swap a good number of those for 100 Meg, and they’d barely notice). These are switches with 48+ connected devices, all at 1 gig. So, for most access points that will be seeing far less users than a traditional edge switch with a one gig uplink, I don’t see the need to go crazy with the feed speed. I could see deploying 2 single gig links to the .ac access points, but not 10 gig. Exceptions to this ‘could’ be very dense classroom environments with a lot of access points (there are exceptions to everything). Ryan H Turner Senior Network Engineer The University of North Carolina at Chapel Hill CB 1150 Chapel Hill, NC 27599 +1 919 445 0113 Office +1 919 274 7926 Mobile From: The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU] On Behalf Of Stewart, Joe Sent: Wednesday, December 18, 2013 12:40 PM To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU> Subject: [WIRELESS-LAN] 802.11AC Future Infrastructure As this technology begins to be deployed is anyone out there planning ahead for wave two of this? I know it’s not going to happen for a while but I’m curious if there are folks in the process of new construction where you have the option to add the infrastructure now to support the 10Gbps. If so, has there been any documentation on what cable type would be recommended for this? (ex. CAT6A or CAT7). Thanks, Joe Stewart Network Specialist I Information Systems and Network Services Claremont McKenna College 325 E. 8th Street, Roberts South #12 Claremont, CA 91711 ********** 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/. ********** Participation and subscription information for this EDUCAUSE Constituent Group discussion list can be found at http://www.educause.edu/groups/.
