Hi, am in the process of sizing a router for a client. The environment is as follows:
Approx 230 XP desktop users
6 Cisco 2950 switches (currently not cascaded)
10meg Internet connx (leased line)
10meg LES10 to offsite ASP
At the moment all of the users are on the same class C subnet which, including the addresses used by the servers, is quite congested as you might imagine. My proposal is to introduce a router and create 3 VLANs on the switches; leave the servers on the current subnet to minimise reconfiguration of firewall rules and so on and transfer the users to the two other VLANs spread across the switches. The router would be responsible for getting data between the VLANs.
My questions are:
Would I need a 3 interface router? Or can I use one with less interfaces and just plug it into a trunk port on one or two of the VLANs and have the switches send the packets to the correct switch in the stack? Would 2950 switches be fast enough for this configuration?
If a 3 legged router is best, would it be sensible to get a 2 interface model and add another NIC? I haven't found many with 3 10/100/1000 NICs.
This isn't a big environment, but it's not tiny either. I'm looking for some space to expand too in the future. What series of Cisco routers should I be looking at? I've looked at the 2700 and 3800 series' so far.
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