Our latest strategy was phased ovehaul (but it might change!),
one building at a time with some tricky VLAN trunking when
buidling are close to each other.
First phase: just replace existing b/g APs with new n APs using
existing Cat5
(upgrade power injectors and some Gig ports when possible)
Second phase: look for weaknesses in coverage and capacity, make sure that
all 802.11n APs are on Gig ports)
we measured 80-85 Mbps of wireless throughput with n AP connected to 100
Mbps switch ports and 175 Mbps on 1000 Mbps switch ports.
Aruba mentioned that it is important to have a Gig port for the uplink of
a 802.11n AP especially for buffering purposes, it might not be necessary
to worry about the uplink to the switch itself!
People will not increase their demand overnight....to be discussed!
Philippe
----------------------------------
Philippe Hanset
IT Manager
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
phanset at utk dot edu
----------------------------------
On Thu, 20 Nov 2008, Jonn Martell wrote:
> Hi Ryan,
>
> When we deployed at the first EDU, we installed two cable drops per
> location to facilitate an inlay of another technology (at that time b
> was deployable and we know that a 5GHz was just a matter of time). We
> also added additional drops to plan for 5GHz (about 40% more which
> didn't have APs) for the 2.4GHz deployment. The second cable per drop
> was strategically important as a leverage with vendor #1 since they
> knew we could easily overlay a competitor or competing/complimentary
> technology....
>
> At the latest EDU I work for, I strongly recommended doing it but it
> was a much smaller scale and it was designed for 5GHz, high capacity
> from the start. So we decided to just deploy high capacity from the
> start and we didn't have leverage with the small scale.
>
> I would budget for an overhaul (because that's really the best end
> goal) but phase it in one building at a time. I would start with the
> locations that need the extra capacity as a pilot. With 5GHz, your
> range isn't has far so in your pilot, you'll likely find that you'll
> need additional cable drops to provide good 5GHz coverage. If you go
> out to the market with an RFP to overhaul a strong vendor, you might
> newer vendors wanting to be part of this migration, so that might be
> an important factor for you on the pricing/budget side.
>
> ............................................................................................................
> Jonn Martell, [EMAIL PROTECTED] www.martell.ca
> Director of Technical Operations with EDU #2
> Wireless LAN Technology instructor (and ex-PM) with EDU #1
> CWNE, CWNT
>
> On Thu, Nov 20, 2008 at 7:15 AM, Ryan Lininger <[EMAIL PROTECTED]> wrote:
> > Good Day Everyone,
> >
> > I'm currently looking into a wireless infrastructure upgrade and was
> > wondering how others have approached this challenge. I'm interested in the
> > phased vs overhaul debate. We currently have a campus wide mixed vendor
> > 802.11b/g environment and would like to go to a controller based 802.11b/g/n
> > environment. How did you implement, or how do you plan to implement, this
> > change on your campus?
> >
> > What method did you choose (multi-year phased deployment or single
> > year/summer overhaul) and why?
> >
> >
> > Thanks for the help.
> > Ryan.
> >
> > --
> > Ryan Lininger
> > Network Systems Engineer
> > Denison University
> >
> > **********
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> >
>
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