In our office we have the following setup:
1. Verizon DSL with Static IP address
2. Westell A90-220015-04 DSL Modem
3. Linksys RV-042 Router
4. Dlink DSS-24 switch
These have been in place for several years and are working fine. But, we have run out of ports on the switch, so my boss has asked me to remove the DSS-24 switch and replace it with qty 3, Cisco 2950T-24 new switches which are new in the box.
I am not a network pro, and just know enough to get in trouble. After installing the new switches in our equipment rack, what do I have to do, if anything, to get 72 ports available.
I was told they will work right out of the box with no special configuration or setup required.
"IP address needed to be configured in each switch, etc."
This ip address would be used to manage the switch so you could remotely access it. It is one of the first things people do when configuring a switch which is probably why you were told you needed it but as Paul quite rightly said all you have to do is actually just connect them up.
They will indeed 'work right out of the box' for your purposes. You will need to link the 3 together using cross-over cables - one should have been included with each switch - they will probably either be orange or red CAT5 cables. You can tell by looking at the colors of the 8 wires on both ends of the cables. On one end, from left-to-right when looking at the bottom side of the jack, you will see: orange-white;orange;green-white;blue;blue-white;green;brown-white;brown. On the other end, if it is identical it's not a crossover. It shoud read: green-white;green;orange-white;blue;blue-white;orange;brown-white;brown. Then you know you have a cross-over cable.
So, you will need 2 of these to get all 3 switches connected to each-other. If I remember correctly the T series has built-in Gigabit uplink ports, right? You should go from gigabitethernet 1/0 (GE1/0) on switch 1 to GE1/0 on switch 2, and them from GE2/0 on switch 2 to GE1/0 on switch 3, using the two crossover cables. You should be able to then go from port 24 (or whatever port you want to use as an uplink) of switch 1 to your RV-042 router using a standard (not a crossover) patch cable, and be good to go - I don't think that the RV has a gig port on it.