I have two neighboring routers, each router neighbors a switch. I have ROAS on each interface connected to the switch. On each switche I have 2 vlans that each have ip addresses. Each switch can communicate with the router and vice versa. I have EIGR...

If you are not using a serial interface that supports HDLC or PPP do you have to configure a sub interface with PVC on a router and does this apply to all Cisco routers? This is the case for an 800 series router but I'm not sure if it applies to newe...