Saturday, April 7, 2012


  • Before using the MPLS you must enable the CEF (Cisco Express Forwarding) on the router.
  • MPLS terminology
    • LSR: Label Switch Routher
      • A router forward IP Packets based on the Labels.
    • Edge-LSR:
      • A router at the end of MPLS network.
      • which forward both labeled & unlabeled packets
    • Ingress E-LSR:
      • A router at an end of MPLS network(Edge-LSR or E-LSR), which add labels to the unlabeled & labeled ip packets.
    • Egress E-LSR:
      • A router removes the labels of received labeled ip packet & forward as unlabeled.
    • CE Router:

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