Multi-Protocol Label Switching. (Multi Site Networks)

This is really useful when connection sites that are using different technologies say ADSL, EFM and Fibre

Security is improved and network policies are easier deployed with a locked network

It is cost effective as sites can be added or removed at ease.

In a traditional IP network each router preforms an IP routing and determines the next hop based on its routing plan and forwards the packet to the next, they make there own independent decisions until the final destination is reached

With label switching the first device does the lookup as stated above and finds the final destination,  the router applies a label based on this information for a pre-determined path, future routers use the label to direct the traffic without any further IP lookups

Deploy Video conferencing and VoIP as the networks offers QoS.