MPLS VPNs are increasingly displacing Frame Relay networks, according to Forrester Research.
Forrester found that 48% of businesses surveyed are using VPNs for WAN connectivity between their locations, compared with 23% that use Frame Relay for the same purpose. Indications are that MPLS could become the technology of choice for VPN users.
Why the shift to MPLS? Several reasons. . .
MPLS VPNs provide the means to securely extend the reach of applications, even voice, with the same reliability as the PSTN.
Although Frame Relay will continue for niche applications, it is expensive to add connections, especially if the network must be fully meshed to achieve any-to-any connectivity.
The more economical way to realize a fully meshed network is to use MPLS. Using existing equipment, full mesh connectivity can be achieved with a single connection from each site to the service provider's network. The provider takes care of the routing changes to join all your locations together.
If you have point-to-point connections, DSL and an IP-VPN between locations, you can greatly simplify your network and save money by standardizing on MPLS. A network assessment will reveal whether this is a worthwhile strategy for your organization.

