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.
Transparent LAN Service
VPLS is sometimes called Transparent LAN service. That’s because WAN communications moves from level 3 to level 2. Your connection to the network is via a managed edge switch that is provided by the network operator. The inherent broadcast nature of Ethernet is preserved, creating a “plug and play” environment as new services are added to the network and discovered by other members connected to the VPLS.
What is Latency?
It is the time delay in the network. In other words, how long it takes to get a packet from node to node. The lower limit is set by the speed of light, which equates to 1 msec per 186 miles in a vacuum.
Why is QoS Important?
MPLS service providers offer QoS or quality of service to meet your business needs. That ensures that VoIP telephone and video streaming will get the bandwidth, latency and jitter characteristics they need for optimum performance.