>> We are using directional patch antennas to keep the coverage to the auditorium as well as use a higher mandatory rate.
Mind sharing what antennas you use? Thanks Norman On Mon, Mar 17, 2014 at 3:12 PM, McClintic, Thomas < [email protected]> wrote: > We have installed in a few auditoriums to help enhance the wireless > there. We are using directional patch antennas to keep the coverage to the > auditorium as well as use a higher mandatory rate. > > > > I have seen no issues with clients hanging on to ac, however I see only > about 5-10% of users associating with ac right now. I'm sure that will > change in the next year. > > > > This is our strategy on ac for now, we are deploying in high density areas > and using various mechanisms to isolate the coverage cell. > > > > > > *TJ McClintic* > > Senior Network Engineer, Network Operations > > [image: 2269655.jpg] > Communication Services | Network Operations > > 7000 Fannin | Suite M50 | Houston, TX 77030 > > (713) 486-2271 tel | (713) 364-8683 mob > > www.uth.edu > > > > > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [mailto: > [email protected]] *On Behalf Of *Cameron, Damien L. > *Sent:* Monday, March 17, 2014 2:03 PM > > *To:* [email protected] > *Subject:* Re: [WIRELESS-LAN] 11ac migration question > > > > I believe it's recommended that you upgrade floor by floor, and building > by building. > > > > If you don't have that capability, I would suggest upgrading the hardware, > but not enable the VHT capabilities until all hardware has been upgraded. > I'm not totally sure of .11ac's protection mechanisms, but doing this would > also avoid any unforeseen issues of an mixing VHT clients/APs with non-VHT > clients/APs. > > > > *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 > > > > > > *From:* The EDUCAUSE Wireless Issues Constituent Group Listserv [ > mailto:[email protected]<[email protected]>] > *On Behalf Of *Jeff Kell > *Sent:* Sunday, March 16, 2014 1:05 AM > *To:* [email protected] > *Subject:* Re: [WIRELESS-LAN] 11ac migration question > > > > Have seen similar results with Dell laptop locking onto 802.11n at a > distance and ignoring "same room" a/b/g. We are trying to avoid mixed > deployments, and sounds like the same concerns extend to 11ac as well. > > Jeff > > On 3/15/2014 11:12 PM, Alok Vimawala wrote: > > Hi Frank, > > > > We just had an interesting incident in one of our buildings where half of > the ac radios stopped working. The building has Cisco 3602i APs with the > add-on 802.11ac Wave-1 module. So, the building turned into a mixed 802.11n > and 802.11ac deployment on the 5GHz spectrum. What we saw in that building > was that new Apple MacBook Pros with the 802.11ac capable chipsets were > preferring to associated with a bad 802.11ac signal rather than connecting > to a great (AP right above the laptop) 802.11n signal. > > > > Clients seem to prefer protocols with highest theoretical throughput > regardless of signal strength and that behavior hasn't really changed since > the days when 802.11n was first introduced. My recommendation would be to > avoid mixed 5GHz 802.11n and 802.11ac environments. > > > > Thanks, > > > > Alok Vimawala > > University of Michigan > > > > On Sat, Mar 15, 2014 at 9:54 PM, Frank Sweetser <[email protected]> wrote: > > Hello all, > > we're beginning plans to upgrade our wireless infrastructure from 11n to > 11ac, and I'm hoping that someone can chime in on their experience with > mixed capability buildings. > > When we first went from 11a/b/g to 11n, we found that clients in > buildings with mixed capability APs had some odd roaming issues - and by > "odd", I mean utterly braindead. A fair number of clients would > aggressively latch onto an 11n AP at -80, while ignoring an a/b/g AP in the > same room at -50, with predictably poor results. In the end, we had to > ensure that buildings were upgraded in full, rather than incrementally, to > fix the complaints. > > My question is, has anyone seen similar issues in buildings with a mix of > 11ac and 11n APs? > > -- > Frank Sweetser fs at > wpi.edu<https://urldefense.proofpoint.com/v1/url?u=http://wpi.edu&k=yYSsEqip9%2FcIjLHUhVwIqA%3D%3D%0A&r=eHsexY0U6WY24UhDK4eLQbvXOPzMySRoCq87DX3WV5M%3D%0A&m=lwbu5AiAuwTjD6PUOrvHW6VKFYy0Iz2P%2BqhdVY75ng4%3D%0A&s=5fbcc40d23368897c190a445e95b80b80aa6245b9c9fb9492aa76250e14c1589> > | For every problem, there is a solution that > Manager of Network Operations | is simple, elegant, and wrong. > Worcester Polytechnic Institute | - HL Mencken > > ********** > Participation and subscription information for this EDUCAUSE Constituent > Group discussion list can be found at > http://www.educause.edu/groups/<https://urldefense.proofpoint.com/v1/url?u=http://www.educause.edu/groups/&k=yYSsEqip9%2FcIjLHUhVwIqA%3D%3D%0A&r=eHsexY0U6WY24UhDK4eLQbvXOPzMySRoCq87DX3WV5M%3D%0A&m=lwbu5AiAuwTjD6PUOrvHW6VKFYy0Iz2P%2BqhdVY75ng4%3D%0A&s=93f94e0564ab3b39e45723942e13457da1462d507f0dc160d1ff8ea911dea2fc> > . > > > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/<https://urldefense.proofpoint.com/v1/url?u=http://www.educause.edu/groups/&k=yYSsEqip9%2FcIjLHUhVwIqA%3D%3D%0A&r=eHsexY0U6WY24UhDK4eLQbvXOPzMySRoCq87DX3WV5M%3D%0A&m=lwbu5AiAuwTjD6PUOrvHW6VKFYy0Iz2P%2BqhdVY75ng4%3D%0A&s=93f94e0564ab3b39e45723942e13457da1462d507f0dc160d1ff8ea911dea2fc>. > > > > > ********** Participation and subscription information for this EDUCAUSE > Constituent Group discussion list can be found at > http://www.educause.edu/groups/<https://urldefense.proofpoint.com/v1/url?u=http://www.educause.edu/groups/&k=yYSsEqip9%2FcIjLHUhVwIqA%3D%3D%0A&r=eHsexY0U6WY24UhDK4eLQbvXOPzMySRoCq87DX3WV5M%3D%0A&m=lwbu5AiAuwTjD6PUOrvHW6VKFYy0Iz2P%2BqhdVY75ng4%3D%0A&s=93f94e0564ab3b39e45723942e13457da1462d507f0dc160d1ff8ea911dea2fc>. > > > ********** 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/.
<<inline: image001.jpg>>
