Good to know. We use Enterasys HiPath. But with the realities of wireless
networking (APs being more hub than switch) and the replies I've received off
list, it certainly seems like /21s is by no means out of the ordinary. Perhaps
I'm still jaded from the good ol' days of bridged wired segments that would
cause all sorts of spanning tree fun - stuff that doesn't really apply here.
Regards,
Craig
SFU SIMON FRASER UNIVERSITY
Network Services
Craig Simons
Network and Systems Administrator
Phone: 778-782-8036
Cell: 604-649-7977
Email: [email protected]
Twitter: simonscraig
----- Original Message -----
From: "Luke Jenkins" <[email protected]>
To: "Craig Simons" <[email protected]>
Cc: [email protected]
Sent: Tuesday, 31 July, 2012 14:43:06
Subject: Re: [WIRELESS-LAN] Wireless Client Subnet sizing
What type of gear are you using?
Cisco is now recommending using /21s for their unified wireless gear (Sujit
Ghosh, Cisco Live US 2012 BRKEWN-2010, Slide 75).
-Luke
=-=-=-=-=-=-=-=-=-=-=-=
Luke Jenkins
Network Engineer
Weber State University
On Jul 31, 2012, at 11:59 AM, Craig Simons <[email protected]> wrote:
> All,
>
> We are looking at re-engineering our wireless networking IP space and I'm
> wondering what type of boundaries other have pushed their networks to. We are
> currently using /22 networks (14 of them) most of which during a busy period
> of the day will run around 75-80% utilization (at least as far as DHCP
> assignments go). When I look at most APs during the day, I see that most APs
> have users belonging to several networks (roaming), and as we have multicast
> disabled, it would seem that the advantages of segregating wireless networks
> on the basis of limiting broadcast domain are moot. Is anyone running /21
> networks or larger?
>
> We've investigated NAT, but accurately logging internal-external IP address
> assignments for our users has proven difficult. Our vendor also doesn't
> currently support any type of "VLAN pooling" feature.
>
> Interested in your opinions,
> Craig
>
>
>
> --------------------------------------
> Craig Simons
> Network Operations
> Simon Fraser University
> Burnaby BC, Canada
> em. [email protected]
> ph. 778-782-8036
> ce. 604-649-7977
> tw. twitter.com/simonscraig
> --------------------------------------
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