Deciding when and where to use MPLS to improve end-to-end packet performance

With traffic volumes growing, operators have to carefully balance revenue and costs. For best results, each layer of the network needs to be optimized. Multi-protocol label switching (MPLS) can play a major role in achieving this – provided it is used correctly.

MPLS was created to improve packet performance in the core of the internet, and is widely used for that purpose, but has also been adapted for other uses. In particular, MPLS is being used more and more in optical packet transport networks to provide the required end-to-end packet performance control for the growing number of IP-based services. This raises several questions, including which of its features to use and where.

MPLS was created to improve packet performance in the core of the internet, and is widely used for that purpose, but has also been adapted for other uses. In particular, MPLS is being used more and more in optical packet transport networks to provide the required end-to-end packet performance control for the growing number of IP-based services. This raises several questions, including which of its features to use and where.

MPLS has a broad range of applications to enhance the performance of packet networks, so many that it has been described as the "Swiss Army knife" of packet networks. Best known for use in business-oriented and performance-critical services, MPLS offers security features and enhanced quality of service (QoS).

Once MPLS is deployed, the addition of MPLS-TP, which applies a common methodology for provisioning and OAM, will help to further minimize opex, as MPLS is extended across packet optical transport networks and especially metro areas. The result takes the industry towards high QoS, end-to-end, IP-based services across multiple operator and vendor domains.

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