Hello! i'm trying to run MPLS on a router cisco 1721. Wich version of IOS do i need and wich commands enables MPLS on an interface??? thanks for your help!

Hi! i'm trying to do a lab at my university implementing MPLS. I have routers cisco 2610 series. This is my configuration: Cisco2600-2(config-if)# ip route-cache cef Cisco2600-2(config-if)# mpls label protocol ldp Cisco2600-2(config-if)#mpls ip My pr...