> Do any of the Aruba customers know what the limitation of client connections > per controller is? How does this number compare to the number of AP's that > can be supported by a single controller?
Aruba supports a maximum of 256 users per AP, but the default config is 64. We decided on a density of about 15 users per AP. On the controller side, Aruba has 128 AP blades, 256 blades and coming with 1024 AP blades. We have 3 chassis for the whole campus (at the moment Dorms only, but it is designed to support the whole campus if necessary) in order to have a n+1 redudancy architecture. Each chassis has one 256 AP blade. So, one chassis has a 256 blade and is the aruba controller (supports 0 AP during normal condition and is designed to be the back up for any other Chassis that would fail), and two chassis with each a 256 AP blade. This config supports our 450 AP in dormitories. Our dorms have about 6000 people (13 buildings). Philippe Univ. of TN > Philippe, > > When planning for AP density in your dorm wireless networks, do these > metrics come into play? How big are your dorms and do you need dedicated > controller hardware for them (as opposed to the rest of your network)? > > Thanks, BJ > > > On 10/19/07 12:58 PM, "Philippe Hanset" <[EMAIL PROTECTED]> wrote: > > > Jay, > > > > We picked ARUBA mostly because we know that Wi-Fi will definitely > > change with 802.11n, but we needed our dormitories covered NOW. > > Aruba provided the cheapest short term solution with their > > B/G only APs ($295 list). I presented this to our administration as > > "trashable solution" while waiting for next generation Wi-Fi! > > On the controller side, Aruba has an upgrade path to support 802.11n. > > For PoE, we got PowerDsine injectors, gig capable, in preparation for more > > capacity (it seems that 802.3af will be able to feed some of those 802.11n > > AP) > > > > A few caveats with Aruba: > > -Their new 3.x code was released a little to soon to our opinion... > > -Do not plan to use APs in AP mode for Wireless Containment, you need > > dedicated Air Monitor for that (we discovered it later :( > > -Position APs on each floor, or the heat map will not show coverage > > on floors that do not have APs > > -Documentation could be improved, but their TAC provides what is missing > > in the Doc. > > > > Besides these few items, it works well. > > > > Philippe > > > > ---------------------------------- > > Philippe Hanset > > University of Tennessee, Knoxville > > Office of Information Technology > > Network Services > > 108 James D Hoskins Library > > 1400 Cumberland Ave > > Knoxville, TN 37996 > > Tel: 1-865-9746555 > > ---------------------------------- > > > > On Fri, 19 Oct 2007, Jay Howell wrote: > > > >> I am in the process of evaluating vendors for a campus-wide rollout of > >> wireless. I have narrowed my choices down to Cisco and Aruba. We are > >> planning on creating three roles which are faculty/staff, student, and > >> guest.Each of these roles will have varying degrees of access to systems on > >> the network. Because of manpower issues we will be broadcasting the SSID > >> and > >> using Novell's LDAP to authenticate to the system. We are not a Cisco shop > >> so there is no advantage either way as far as dropping into our existing > >> system. > >> > >> My question is are there any gotchas I might be missing with these two > >> vendors? From what I have seen, both systems seem to work nearly > >> identically. You can access the same information from each controller, and > >> both are self-healing when an AP goes out. Are there any support issues I > >> should be aware of? We plan on making our decision around the first of > >> November, so I look forward to any comments this group might have. > >> > >> -- > >> ********************************************************* > >> Jay Howell > >> Executive Director of Information Technology > >> Chowan University > >> Ph: 252-398-6361 > >> ********************************************************* > >> > >> ********** > >> 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/.
