What information is located in the first 20 bits of the MPLS label?

Last Updated: May 20, 2021
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What information is located in the first 20 bits of the MPLS label?

  • the label number
  • the time to live
  • the quality of service marking
  • the label path

Explanation: The MPLS label has four fields. A 20-bit label field containing the label number, a 3-bit EXP field containing QoS markings, a 1-bit S field that indicates if this is the last label in the stack, and an 8-bit time-to-live field.

Related exam: Chapter 18: Quiz - VRF, MPLS, and MPLS Layer 3 VPNs CCNPv8 ENARSI

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