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Feature Description - MPLS 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Feature Description - MPLS
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Overview of Seamless MPLS

Overview of Seamless MPLS


Seamless MPLS is a bearer technique that extends MPLS techniques to access networks. Seamless MPLS establishes an E2E LSP across the access, aggregation, and core layers. All services can be encapsulated using MPLS at the access layer and transmitted along the E2E LSP across the three layers.


MPLS is a mature and well-known technology and has been adopted by a growing number of service providers in network construction. MPLS can integrate multiple networks on an Ethernet-based infrastructure, making full use of the benefits of a uniform forwarding model and reducing network construction costs. MPLS has been widely used on aggregation and core networks.

With current trends moving towards a flat network structure, metropolitan area networks (MANs) are steadily evolving into the Ethernet architecture, which calls for the application of MPLS on the MAN and access networks. To meet this requirement, seamless MPLS was developed. Seamless MPLS uses existing BGP, IGP, and MPLS techniques to establish an E2E LSP across the access, aggregation, and core layers, allowing end-to-end traffic to be encapsulated and forwarded using MPLS.


Seamless MPLS offers the following benefits:
  • Integrates the access, aggregation, and core layers into one MPLS network, encapsulates all services using MPLS, and transmits these services along an E2E LSP. Seamless MPLS simplifies network provisioning, operation, and maintenance.

  • Supports high deployment flexibility and scalability. On a seamless MPLS network, an LSP can be established between any two nodes to roll out services.

Updated: 2019-01-14

Document ID: EDOC1100058933

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