Re: [802SEC] +++EC Email Ballot+++ Allocation of Funds for the Acquisition of Wireless Access Points for Plenary Meeting Network Support

["Johnston, Dj" <dj.johnston@INTEL.COM>]

I spoke with Tony A. about this at the last meeting.

They actually do use the power adjust capability to manually perform
load balancing in rooms with multiple APs.

I can envisage it being non optimal to have multiple different
interfaces on multiple different APs to perform this management.

Standardized, automated AP load balancing is not a part of the 802.11
specs today, but I suspect it will be in the fullness of time. At that
point we can avoid the sort of vendor lock in we are seeing.

The cost of APs might concentrate our minds on writing the management
specs we need :)

DJ

-----Original Message-----
From: owner-stds-802-sec@listserv.ieee.org
[mailto:owner-stds-802-sec@listserv.ieee.org] On Behalf Of Howard
Frazier
Sent: Thursday, May 06, 2004 9:29 AM
To: STDS-802-SEC@listserv.ieee.org
Subject: Re: [802SEC] +++EC Email Ballot+++ Allocation of Funds for the
Acquisition of Wireless Access Points for Plenary Meeting Network
Support


After some consideration, I vote Approve.

According to the datasheet found at the following URL:

http://www.cisco.com/en/US/products/hw/wireless/ps430/products_data_shee
t09186a00800937a6.html#wp1001907

the transmit power levels for the "K9" AP are adjustable.

For the 802.11a radio, the transmit power level can be set to

40 mW (16 dBm)
20 mW (13 dBm)
10 mW (10 dBm)
5 mw (7 dBm)

For the 802.11b radio, the transmit power level can be set to

100 mW (20 dBm)
50 mW (17 dBm)
30 mW (15 dBm)
20 mW (13 dBm)
10 mW (10 dBm)
5 mW (7 dBm)
1 mW (0 dBm)

The same transmit power levels are available for the 802.11g radio when
using CCK. When using OFDM, the transmit power levels for the 802.11g
radio can be set to

30 mW (15 dBm)
20 mW (13 dBm)
10 mW (10 dBm)
5 mW (7 dBm)
1 mW (0 dBm)

The "K9" also has both omni and hemispherical 5 GHz antennas, as well as
two RP-TNC connectors for external antennas.

Being more familiar with "conductively enabled" network technology, I
profess no expertise in the area of "dielectrically enabled" networks,
so I may be misinterpretting both the facts and the implications of this
data. I will note that the "K9" can be "conductively empowered", which
would seem to be a good thing, though the datasheet makes no mention of
IEEE Std 802.3af-2003.

My knowledge of APs is very limited, so I don't know if other
commercially available units provide similar capabilities. I do think
that a price of $700 per "K9" is far too expensive. However, when one
considers the discount we will receive on the first 24 units, and the
price that Buzz has found for the remaining 20 units, the average cost
per unit would work out to be approximately $337, and this seems
reasonable, given the capabilities of the device. I assume that the $567
price that Buzz found is for a dual radio/tri-mode device.

I started with the same objections as Bob and Mat. If my analysis is
incorrect, then I will change my vote to Disapprove.

Howard

Sherman, Matthew J. (US SSA) wrote:

> Bob,
>
>
>
> I think you are making an implication here that there is no power
> control.  If there is power control, I'm not sure that this is an
> issue.
>
>
>
> Mat
>
>
>
> Matthew Sherman, PhD
> Senior Member Technical Staff
> BAE SYSTEMS, CNIR
> Office: +1 973.633.6344
> email:  matthew.sherman@baesystems.com
>
>     -----Original Message-----
>     From: owner-stds-802-sec@listserv.ieee.org
>     [mailto:owner-stds-802-sec@listserv.ieee.org]On Behalf Of Bob
O'Hara
>     Sent: Thursday, May 06, 2004 10:55 AM
>     To: STDS-802-SEC@listserv.ieee.org
>     Subject: Re: [802SEC] +++EC Email Ballot+++ Allocation of Funds
for
>     the Acquisition of Wireless Access Points for Plenary Meeting
>     Network Support
>
>     Buzz,
>
>
>
>     If that is true, then our service provider needs to learn a bit
more
>     about wireless.  The Cisco APs are among the "hottest" (highest
>     transmit power) APs available.  This is not compatible with a high
>     density environment.  In a high density environment, the need is
for
>     APs to be closer together and operating at lower power, to
increase
>     the overall capacity of the entire WLAN.  If the transmit power is
>     high and the APs are placed close together, the APs wind up
>     interfering with each other and reducing the overall capacity of
the
>     WLAN.  The more APs you put into the WLAN, the lower the capacity
>     gained by each AP.
>
>
>
>      -Bob
>
>
>
>
>
------------------------------------------------------------------------
>     From: owner-stds-802-sec@listserv.ieee.org on behalf of Rigsbee,
>     Everett O
>     Sent: Thu 5/6/2004 2:29 AM
>     To: STDS-802-SEC@listserv.ieee.org
>     Subject: Re: [802SEC] +++EC Email Ballot+++ Allocation of Funds
for
>     the Acquisition of Wireless Access Points for Plenary Meeting
>     Network Support
>
>     Bob,  The Cisco AIR-AP1231G-A-K9 is the only unit our service
>     provider, IDEAL Technology, would recommend for our type of high
>     density configurations.
>
>
>
>     Thanx,  Buzz
>     Dr. Everett O. (Buzz) Rigsbee
>     Boeing - SSG
>     PO Box 3707, M/S: 7M-FM
>     Seattle, WA  98124-2207
>     (425) 865-2443    Fx: (425) 865-6721
>     everett.o.rigsbee@boeing.com
>
>
>
>     -----Original Message-----
>     From: Bob O'Hara [mailto:bob@AIRESPACE.COM]
>     Sent: Wednesday, May 05, 2004 9:14 PM
>     To: STDS-802-SEC@listserv.ieee.org
>     Subject: Re: [802SEC] +++EC Email Ballot+++ Allocation of Funds
for
>     the Acquisition of Wireless Access Points for Plenary Meeting
>     Network Support
>
>
>
>     Disapprove.  There is no need to purchase this equipment at this
>     price.  There are plenty of other solutions that are better and
cost
>     less (my own company's, for example).  Cisco's equipment, even at
>     the "discounted" $700 is absolutely the most expensive and lowest
>     performance that you can buy.
>
>
>
>      -Bob
>
>
>
>
> ----------------------------------------------------------------------
> --
>
>     From: owner-stds-802-sec@listserv.ieee.org on behalf of Paul
Nikolich
>     Sent: Wed 5/5/2004 4:37 PM
>     To: STDS-802-SEC@listserv.ieee.org
>     Subject: [802SEC] +++EC Email Ballot+++ Allocation of Funds for
the
>     Acquisition of Wireless Access Points for Plenary Meeting Network
>     Support
>
>     Dear EC Members,
>
>     This is a 10 day email ballot to make a determination on the below
>     motion to allocate additional funds for equipment purchase.
>
>
>
>     The ballot opens 8PM EDT 5May 2004 and closes 8PM EDT 15May 2004.
>
>      Regards,
>
>      --Paul Nikolich
>
>
>
>
>
>     Motion:
>
>     Whereas the 802 EC had approved $7,500 for acquisition of 44
>     Wireless Access Points (WAPs) at the closing EC meeting in
> Orlando; and
>
>     Whereas Cisco Systems has now generously agreed to provide 24 of
>     those WAPs to IEEE 802 for a substantially discounted net value of
>     $3500; and
>
>     Whereas that leaves us with the need to acquire 20 additional WAPs
>     on the retail market at an estimated $700 each (total = $14K); and
>
>     Whereas we therefore need to allocate an additional $10K to
complete
>     the acquisition of the needed equipment in time for our Portland
>     plenary session;
>
>     Therefore be it resolved that:  the IEEE 802 Executive Committee
>     approves expenditure of up to an additional $10K for Acquisition
of
>     Wireless Access Points for Plenary Meeting Network Support (total
of
>     $17,500 for the 44 WAPs).
>
>
>     Moved:    Rigsbee       Seconded:  Heile
>
>
>
>      Yes ________     No ________     Abstain ________
>
>     ---------- This email is sent from the 802 Executive Committee
email
>     reflector. This list is maintained by Listserv. ---------- This
>     email is sent from the 802 Executive Committee email reflector.
This
>     list is maintained by Listserv. ---------- This email is sent from
>     the 802 Executive Committee email reflector. This list is
maintained
>     by Listserv. ---------- This email is sent from the 802 Executive
>     Committee email reflector. This list is maintained by Listserv.
>
> ---------- This email is sent from the 802 Executive Committee email
> reflector. This list is maintained by Listserv.

----------
This email is sent from the 802 Executive Committee email reflector.
This list is maintained by Listserv.

----------
This email is sent from the 802 Executive Committee email reflector.  This list is maintained by Listserv.