To add a little twist to that scenario.....
If for instance in your server block, you place 2 NICs on each machine
address them to the different subnets. Plug each NIC onto a port on the
switch/switches, and assign those ports to the appropriate VLAN.
Theoretically would this allow each of the VLANs to see the "same" resources
(servers)?
-----Original Message-----
From: Ole Drews Jensen [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 20, 2000 11:48 AM
To: '[EMAIL PROTECTED]'
Subject: BCMSN: VLAN's and Subnets
I have a question about implementing VLAN's in existing LAN's.
Let's say that I have one office with stacked switches connecting 100 users
to a network with a couple of servers and other good stuff.
Layer 2 info : Ethernet, one big broadcast domain
Layer 3 info : IP, one full class C : 192.168.16.0
After having analyzed the entire LAN, I find out that 50 users are using
resources that the other 50 users are not using, and the same thing the
other way around. Instead of splitting the stacked switches up in two
separated physical stacks, I now assign the ports for the first 50 users to
VLAN 11 and for the rest 50 users VLAN 12.
Layer 2 info : Ethernet, two big broadcast domains (not including
VLAN1)
Layer 3 info : IP, one full class C : 192.168.16.0
I would assume that this would work great as long as noone from VLAN 11
needs any resources from VLAN 12, and the same thing the other way around.
Now to my question (which is more a confirmation of my theory):
I would only need to split my class C up in subnets if I want Inter-VLAN
communication between my VLAN 11 and VLAN 12 right???
Layer 2 info : Ethernet, two big broadcast domains (not including
VLAN1)
Layer 3 info : IP, VLAN 11 : 192.168.16.64/26, VLAN 12 :
192.168.16.128/26
Do I have the right idea, or am I way off???
Thanks for your comments on this.
Ole
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Ole Drews Jensen
Systems Network Manager
CCNA, MCSE, MCP+I
RWR Enterprises, Inc.
[EMAIL PROTECTED]
http://www.insync.net/~drews/ccnp
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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