[c-nsp] Network Size

[Voll, Scott]

We have small enough IDFs that each IDF is a different VLAN (subnet
/24).

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Tim Durack
Sent: Friday, February 04, 2005 10:09 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] Network Size

A few years ago we were experiencing some serious pain running large
(1000+ hosts) flat networks with proprietary switch meshing
technology.

We followed Cisco's Campus network designs. You can find them all in
the Networkers slides.

Put in an L3 core and /24 subnetted to the switch, and haven't looked
back since. A /24 gives you ~250 hosts, that covers you for some
pretty big access switches.

We had some initial resistance to the plan due to the amount of work
involved in re-subnetting. I would encourage a rigid structure for how
subnets are created. Per switch is simple - new switch, new subnet.

Tim:>
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