What Is VPLS?
VPLS is a class of VPN or Virtual Private Network that connects multiple sites to form a single bridged domain. It is implemented using a MPLS or Multi-Protocol Label Switching Network. That makes it protocol-transparent so that all services, regardless of which location the are physically located at, appear to be on the larger LAN that serves all locations.
How MPLS Replaces Frame Relay Networks
Frame relay has been a popular private WAN networking service to link multiple locations. MPLS is the replacement service that offers more flexibility, higher bandwidth and lower costs.
When Should You Use VPLS?
VPLS might be the right service for your company or organization if you need to connect anywhere from a few to a few dozen locations as if they were on a single Local Area Network. Advantages of this approach, compared to a private network arrangement with individual point to point connections back to headquarters, include lower latency, higher efficiency, and lower cost... perhaps much lower cost.
How MPLS Enables VoIP
Enterprise VoIP phone systems offer performance and cost savings advantages to businesses, but only if voice quality can be maintained. MPLS networks are specifically designed to maintain voice packet integrity.
MPLS Network Configurations
The MPLS network can be thought of as a cloud that is accessible from many locations. Your service can be set up for a single point to point connection, a hub and spoke replacement for central offices serving many remote locations, or a fully meshed network where any site can communicate with any other site.