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A mistake frequently made when planning networks is to dimension bandwidth solely on the basis of the current requirements, disregarding the fact that the network will be subject to ever-increasing bandwidth requirements, e.g when new IT systems are integrated into the network or when the amount of transmitted data increases.
When the bandwidth of the network is no longer sufficient, the transmission rate in the network is severely restricted for all users. File access in remote IT systems is slowed down considerably, for example, when the available network bandwidth has to be shared with other users, initiating a high amount of network traffic(capacity is subject to a high level of utilisation by other users), such as applies when large files are transferred from one IT system to another.
Example:
An organisation with several sites installs a network based on ISDN-So lines for data communication. After the installation of a GUI based Intranet, the data communication nearly broke down. Finally, only a switch to S2M communication channels provided the necessary network bandwidth.
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by Bundesamt für Sicherheit in der Informationstechnik |