[27630] in resnet
Re: SOHO WiFi routers and residential networking
daemon@ATHENA.MIT.EDU (Osborne, Bruce W)
Mon May 7 09:36:40 2012
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Message-ID: <7F8CAE21F9C1C94A90F11320EF3974CE3902FAF7@LUEMSMAIL01.University.liberty.edu>
Date: Mon, 7 May 2012 11:46:17 +0000
Reply-To: Resnet Forum <RESNET-L@listserv.nd.edu>
From: "Osborne, Bruce W" <bosborne@liberty.edu>
To: RESNET-L@listserv.nd.edu
In addition to the hash-based VLAN pooling, there is an option for even VLAN pools that distribute the clients evenly across the pool. This feature was added in ArubaOS 6.1.3.0.
Bruce Osborne
Network Engineer
IT Network Services
(434) 592-4229
LIBERTY UNIVERSITY
Training Champions for Christ since 1971
-----Original Message-----
From: Mike Richardson [mailto:mike.richardson@manchester.ac.uk]
Sent: Friday, May 04, 2012 10:43 AM
Subject: Re: SOHO WiFi routers and residential networking
On Fri, May 04, 2012 at 11:25:55AM +0000, Osborne, Bruce W wrote:
> I slightly disagree. Ryan.
>
>
> Dealing with many /24s in a large wireless deployment can get unwieldy.
>
>
> Here at Liberty University,, we use /23 that are twice the size of /24.
> Our wireless broadcast traffic is still pretty low. At least, it is
> better than we used /20 subnets for wireless. We are doing multicast
> IPTV on the /23s. We blocked it when we were using /20.
I agree. Our (Aruba) system uses VLAN pooling to balance usage across a number of VLANs and we have one subnet per VLAN. The balancing is done by MAC hash but isn't perfect. In an ideal world one big subnet would be the most efficient way of doing it, from an address usage perspective. Small subnets means a need for lots of VLANs to ensure that particular subnets aren't statistically likely to fill. Currently we have 30 x /23 and it seems to work ok.
Mike
--
Mike Richardson
Networks (network@manchester.ac.uk)
IT Services, University of Manchester
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