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Multi-protocol Label Switching (MPLS) is a switching mechanism that uses labels (numbers) to forward packets. Labels usually correspond to layer-3 destination addresses (equal to destinationbased routing). Labels can also correspond to other parameters (QoS, source address, etc.). MPLS was designed to support other protocols as well. Label switching is performed regardless of the layer-3 protocol. | IP over MPLS Overview Objectives This module focuses on the IP QoS mechanisms available in combination with Multiprotocol Label Switching MPLS . Upon completion of this module you will be able to perform the following tasks Describe and configure QoS Mechanisms in Frame-mode MPLS networks Describe and configure QoS Mechanisms in Cell-mode MPLS networks MPLS Introduction Objectives Upon completion of this lesson you will be able to perform the following tasks Describe basic features of MPLS Describe Frame-mode MPLS Describe Cell-mode MPLS 23-2 World Wide Training Word Templates v1 Copyright 1999 Cisco Systems Inc. Multi-protocol Label Switching MPLS is a new forwarding mechanism in which packets are forwarded based on labels Labels may correspond to IP destination networks equal to traditional IP forwarding Labels can also correspond to other parameters QoS source address . MPLS was designed to support forwarding of other protocols as well 2001 Cisco Systems Inc. IP QoS IP over MPLS Multi-protocol Label Switching MPLS is a switching mechanism that uses labels numbers to forward packets. Labels usually correspond to layer-3 destination addresses equal to destinationbased routing . Labels can also correspond to other parameters QoS source address etc. . MPLS was designed to support other protocols as well. Label switching is performed regardless of the layer-3 protocol. Copyright 1999 Cisco Systems Inc. Release Date 2 1 99 .
