Looks good to me, however if you are planning to use inter-VLan routing you
might want to make sure that the protocol you select can handle VLSM.
David Ng
Senior Systems Engineer
Integration Technologies Inc.
1201 Dove Street Suite 200
Newport Beach CA 92660
Microsoft MCSE, Cisco CCNA/CCDA, Citrix CCA, Check Point CCSA
Ole Drews Jensen <[EMAIL PROTECTED]> wrote in message
2019FB428FD3D311893700508B71EBFB313971@RWR_MAIL_SVR">news:2019FB428FD3D311893700508B71EBFB313971@RWR_MAIL_SVR...
> 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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