Committed Information Rate (CIR) – Within the frame relay network the (CIR) represents the average bandwidth for a circuit that an ISP provider has under normal circumstances with out any problem. In any condition or circumstances the bandwidth should not go below (CIR). Usually the bandwidth is defined in the terms of kilobytes/second.
The CIR plus excess burst rate (EIR) is usually equal to or is a small much less than the access point speed of the network. Usually the (CIRs) are defined differently by the frame relays and they’re not adjusted so merely. They are able to be set up using the passage of time and gaining expertise after handling different situations. The kinds of connections in which there are numerous types of information files being transmitted like video files and document files, so they require various speeds to be transferred having a particular speed to meet the time frequency. In this case the network has to determine which file to send first and which to send later. You will find different devices that deal with these situations. The frame relay assemblers and disassembles manage the connections logically and efficiently. To understand this an example is becoming quoted, the video files with large size and high frequency will probably be given much more path to transfer along with other files with little size will probably be given less space to transfer. This is managed by the files are sometimes also dropped because of much less significance of visitors congestion and after some time they are again picked up and transmitted.
When a business takes an internet connection from a service provider according to it require than it has a fixed bandwidth. But the issues are just a little different in the real world other than the papers. If the user has taken a devoted server of 256kbps, than it would not work based on the frame relay? It will function upon the principle of (CIR).