Some tests we found worthwhile:
-Check to see if multicast works like you expect.
-Related to multicast and in general, check to see if fragmentation
also leads to reordering of fragments and if your applications can
live with this.
-Test client throughput in various scenarios (Single client,
Ken,
You might want to consider the management side of the project. With Cisco you
can connect directly to the controller-WISM, but they recommend you use another
product called WCS. Things to watch out for are in the following:
1. I am not sure with Aruba, But Cisco deployment can
Assuming that this will be a large scale deployment, make sure to actually
use the management software during your evaluations. Cisco uses a WCS and
Aruba has purchased the Airwave product.
It's my opinion that with enough hard work any vendors can eventually
provide a good wireless experience
Also- look closely at what code versions are required to do the things
you want to do. Wanna do 11n? What about mesh? For Cisco, both require
newer code. And depending on who in Cisco you speak with, that same
newer code should be avoided in many cases. Not sure if Aruba has these
same nuances,
Ken:
Since a client radio can connect to only one access point at a time, (3)
will not be an issue. Point (4) seems suspect, too.
Frank
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:wireless-...@listserv.educause.edu] On Behalf Of Christopher DeSmit
Sent: Wednesday,
Ken,
Factors that we have considered in our wireless vendor analysis and
that are beyond
the controller but can make a big difference in implementation and
cost are:
-Form factor of the AP (size of AP, brackets, cost of antennas..)
-Power requirements for full 3X3 802.11n capacity (eg: can
To clarify #3 The issue with a PC is that when you are in between the coverage
of a AP, a PC will register its MAC address with the AP. When a end switch sees
that address of the PC in both locations, the switch starts logging errors and
is looking for a spanning tree loop. Or in other words,
Chris,
You have some good points here. You are incorrect on the power setting per
controller comment. Cisco's Radio Resource Management (RRM or Auto-RF) can
change the power differentially across APs, and APs can be selectively removed
from global RRM control for power and channel changes, and
Toivo et al,
Great comments. Does anyone have any 802.11n testplans they are willing to
share?
802.11n Survey experiences? Has it turned the traditional survey methodology on
its head, or do we still have to consider legacy and so the n simply stands
for Nice (if you have it).
Anyone with
Ken,
Phillipe makes some good points in making sure you consider initial capital
investment vs. longer-term operational costs. I'm not sure where the two
vendors stand in comparison to each other these days. I can say as an Aruba
house, I have not been disappointed by their product. We
The Aruba-owned Airwave AMP product has quite successfully managed my Cisco
WiSM deployment. We actually have two of them, one for campus APs
controllers and a second for ResNet APs and controllers. I also own a WCS
with its Location Appliance. But, I have quit using the WCS -- it is much
harder
Ah, I suppose it would have helped if I added my contact info :)
galia...@u.washington.edu
Aruba knows how to find me as well.
___
Jim Galiardi
Network Specialist, Network Systems
UW Technology
University of Washington
(206)616-0397
Box 354150
-Original
(Aruba) Airwave is having a webinar in early FEB to introduce new features
in their latest AMP release. This might be worth watching just to get a feel
for how their interface looks and works. It manages the majority of fat APs,
thin APs, and controllers. So far I have not seen a decrease in
Chris:
Does this STP issue arise in a WiSM or fat AP configuration?
Frank
From: The EDUCAUSE Wireless Issues Constituent Group Listserv
[mailto:wireless-...@listserv.educause.edu] On Behalf Of Christopher DeSmit
Sent: Wednesday, January 28, 2009 10:01 AM
To: WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
Well, that's no surprise...that's just the nature of L2 networks. If Cisco
can be criticized, it's because they have centralized and Fat AP options.
Frank
-Original Message-
From: Christopher DeSmit [mailto:chris.des...@uncp.edu]
Sent: Wednesday, January 28, 2009 3:39 PM
To:
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