To ALL,
We are currently an Aruba shop. We use a combination of Nat, Vlan pools,
large subnets, and airgroup. We break
our wireless network up into 3 controller groups that are geographically
separate. In each one, On our main ssid's we
have a vlan pool of 8 /21 subnets doing 8 to 1 NAT. We have a non NAT ssid with
/22 subnets. We use airgroup to allow
the sharing in between subnets. We have bounced back and forth on subnet size,
We started out small but kept on going
up as we grew. I don't see us ever going down to one subnet so vlan pooling
will always be in play. We just recently
moved to Deterministic NAT and have been happy with it so far. It allowed us
to go slightly larger on the subnets (to
get contigious space). You can roam within a controller group but not in
between. But since there is physical
separation no one expects to roam in between. Normally this break down to
roaming within a building but not if you walk
outside. We do not have any "really large venues yet (stadiums) but I would do
it the same.
On 12/19/2016 02:50 PM, Chris Adams (IT) wrote:
> All,
>
>
>
> I wanted to poll the group and see what strategies you are using at your
> Universities for client addressing on large
> wireless networks. We are revisiting how we address and segment our wireless
> LAN largely due to the need to accommodate
> large events and sports arenas. We have operated with buildings in various
> wireless “zones” with a VLAN/subnet per zone.
> Going forward some of our larger event spaces will need to support 3000+
> clients in the same building.
>
>
>
> What has the approach been for handling address allocations at your
> institutions? Most research I’ve found suggests
> either using VLAN pooling or very large subnets with client isolation. These
> won’t easily work for us, at least in
> academic areas, as we have many faculty using airplay, doceri, and other
> client to client applications. Going with large
> subnets per building may cause a lot of broadcast traffic volume issues and
> potential roaming issues between buildings
> (sticky clients?).
>
>
>
> If it helps, we are an Aerohive shop and using Windows Server 2012 DHCP in HA
> configuration.
>
>
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