MPLS Goes Mainstream

MPLS is becoming a mainstream protocol being marketed aggressively by carriers and adopted enthusiastically by enterprises. MPLS-based Virtual Private Networks (VPN) are seen by a growing number of carriers as a way to keep existing customers who are receiving Layer 2 services. By migrating them to Layer 3 MPLS VPNs, carriers also are setting the stage for new service delivery, according to a study by the Yankee Group.

"MPLS is being deployed in both service provider and enterprise networks to bridge the divide between the packet layers and the transport network," said Andrew G. Malis, president and chairman of the board at the MPLS and Frame Relay Alliance. (The MPLS Forum merged with the Frame Relay Forum to Create the MPLS and Frame Relay Alliance in April 2003.)

"Service-provider networks are using MPLS over high-availability SONET/SDH transport infrastructure. MPLS converges a carrier's existing services onto a single multi-service data-aware transport network, driving operating expenses down. At the same time, MPLS enables new services onto the same converged MPLS network, driving revenues up for minimal incremental cost," said Graham Pattison, president and CEO of Seranoa Networks.

Among the organizations turning to MPLS VPNs is Swiss International Airlines. AT&T just announced that it will be providing an MPLS-based VPN to link 36 sites in North America and Europe for the Swiss national air carrier.

The managed VPN will carry converged voice and data traffic, including internal applications, such as e-mail and passenger and cargo information. It also will provide the basis for information-sharing between employees, customers, and business partners.