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MPLS

MPLS. An Overview Jean Walrand EECS. Outline. Objectives Label Switching LSP setup. Control Routing Classify -> Label -> LSP Traffic Engineering CoS Protection Switching Use ATM switches as routers. Objectives. Label Switched Paths. Label-Switched Router: Switch based on label

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MPLS

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Presentation Transcript

  1. MPLS An Overview Jean WalrandEECS

  2. Outline • Objectives • Label Switching • LSP setup

  3. Control Routing Classify -> Label -> LSP Traffic Engineering CoS Protection Switching Use ATM switches as routers ... Objectives

  4. Label Switched Paths Label-Switched Router: Switch based on label Re-label ... LSR LER Label Edge Router Ingress: Classify Label LER Egress: Pop Note: Push and pop

  5. 7 6 Label Switched Paths (continued) • Example 10 10 10 10 10

  6. Control Driven (prior to data) Data Driven Label Distribution Request OK, Label Note: Deadlocks are possible

  7. Details: Labels

  8. Details: Layers

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