Hi Bruce,
I was referring to the future 802.11ac phase 2 APs.
-John
On 02/11/2014 07:40 AM, Osborne, Bruce W (Network Services) wrote:
What brand of APs are you using? Aruba APs will only accept PoE from the first
Ethernet port.
Bruce Osborne
Network Engineer - Wireless Team
IT Network Services
(434) 592-4229
LIBERTY UNIVERSITY
Training Champions for Christ since 1971
-----Original Message-----
From: John Center [mailto:john.cen...@villanova.edu]
Sent: Monday, February 10, 2014 5:44 PM
Subject: Re: How many drops 802.11ac phase 2
Hi Philippe,
Another reason for 2 drops is resiliency. I envision connecting the AP's 2 ports
to a 2-switch stack. We rarely see the need for redundant power supplies in an
edge switch, but have seen failure on a switch ASIC cause one or more ports to go
dead. With 2 connections, one switch having issues won't take out the AP. I think
LAG'g both ports across the stack & supporting LACP will become a future
requirement.
-John
--
John Center
Villanova University
On 02/07/2014 10:21 AM, Hanset, Philippe C wrote:
Is the main justification for two drops due to power/bandwidth/the-two?
With many services and most killer apps going to the cloud, I would
suspect that the bandwidth to the WAN is so limiting, that this excess
of capacity on Wireless is a complete overkill (a vendor driven
non-sense).
Yes, those 802.11ac Phase2 APs can generate a lot more than 1 Gbps,
but that's is shared bandwidth (half-duplex), and your uplink is 1
Gbps full-duplex (2 Gbps in Cisco math as we said in the old days).
So, you really plan to also uplink your switches with 40 Gbps, and
then a core at many times 100 Gbps, all connected to your ISP at a few
Gbps... something doesn't add up here.
Am I alone making bad accounting here?
Philippe Hanset
www.eduroam.us <http://www.eduroam.us>
On Feb 7, 2014, at 9:58 AM, James Robert Kennon <jken...@gsu.edu
<mailto:jken...@gsu.edu>>
wrote:
We just made a call on a new building and decided not to incur cost
of
2 cables per drop at this time. Hope we don't regret it later.
From: Lee H Badman <lhbad...@syr.edu <mailto:lhbad...@syr.edu>>
Reply-To: The EDUCAUSE Wireless Issues Constituent Group Listserv
<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Date: Fri, 7 Feb 2014 14:56:31 +0000
To: <WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>>
Subject: Re: [WIRELESS-LAN] How many drops 802.11ac phase 2
We'll be running two, until some sanity emerges.
---------------------------------------------------------------------
---
*From:* The EDUCAUSE Wireless Issues Constituent Group Listserv
<WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>> on behalf of Brian David
<brian.da...@bc.edu <mailto:brian.da...@bc.edu>>
*Sent:* Friday, February 7, 2014 9:54 AM
*To:* WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU
<mailto:WIRELESS-LAN@LISTSERV.EDUCAUSE.EDU>
*Subject:* [WIRELESS-LAN] How many drops 802.11ac phase 2
All,
I wanted to see how many people were planning on running 2 drops to
802.11ac phase 2 access points?
Currently we are just doing a one for one swap when replacing an
older a/b/g AP's with 802.11ac phase 1 AP's
When you have new construction, do you plan on running 2 drops so
when phase 2 come into play you will be all set for it?
*/Brian J David/*
*/Network Systems/*
*/Boston College/*
<image003.jpg>
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