I work for an smaller ISP,today we have an 7204 VXR with NPE-G1 controller but this router will probably not meet our future demands.
We only use Ethernet interfaces, 100, 1000, fiber and copper and we do not use any advanced routing protocols, only static as it is today.
This router is the core for access the internet with 200 mbit/s. Behind it is brodband customers and some servers with internet services.
Can we choose an Layer3 switch (Catalyst 4500) instead of this router or is it neccessary ta have an router ?
What is the main difference between router and switch besides the fact that an router has more interface options and can handle more advanced routing ?