I am trying to design a small LAN using 3 Extreme Summit switches as access switches, all L2 only, 1 Cisco 6509 as core/distribution, and 1 Cisco 3825 router for WAN access. There are 3 VLANs required, 1 on each Extreme switch. What is the best way to connect everything?
I have been considering creating trunk ports on the 6509 to each Extreme switch. Then enabling routing on the 6509. Does it make sense to trunk even though I only have 1 VLAN going across the trunk? Is there an alternative?