ISP (Internet Service Provider)
A company that provides internet services.
Shared Service Level
Internet service in which the total bandwidth allocated to a regional area is shared amongst all of the users in the area. The service level is the maximum possible bandwidth available per subscriber for the region.
CIR (Committed Information Rate)
A bandwidth rate that is guaranteed by the ISP. In other words, the minimum service speed you will have regardless of any other activity over the network.
The ratio of users to total amount of available shared bandwidth for a given area. A higher contention ration means there is more competition for bandwidth amongst the subscribers in an area.
Fair Usage Policy
A policy that is established by each ISP which places a total data usage limit on each subscriber. The usage allowance is typically monthly and varies depending on the service plan. A lower fair usage policy is more limiting since the monthly data allowance is lower. With most ISPs, once the monthly limit is reached, the subscriber’s service is either turned off, throttled back (reduced to a slower service level), or charged for extra usage fees.
LAN (Local Area Network)
The group of computers, network appliances, and other devices that makeup the local network at a specific site or location.
VoIP (Voice over Internet Protocol)
The application of voice services over an internet connection