- Generally in ip routing, packets are forward based on the ip address
- But in MPLS, ip packets are assigned with labels.
- Gnerally when forwarding ip packet, whole packet will be read. then forward
- But in MPLS, read only the top label, based on thins info ip packet will be forwarded
- Today MPLS is, for the most part, a standardized version of Cisco's proprietary "tag switching".