Chapter 5 MPLS Labels There are many examples of label substitution protocols already in existence. ATM - label is called VPI/VCI and travels with cell. - ppt download
Basic concepts
What is the network structure of MPLS?
Multiprotocol Label Switching (MPLS) Overview - Study CCNA
MPLS Components, Part 2 | INE
What is MPLS and GMPLS?
MPLS Operations – Label Stack – My CCIE Journey
Multi-Protocol Label Switching (MPLS) Testing Features