If possible can you help me. I am aware that with a switched network it is theoretically possible to use 100% port utilisation as you do not have to worry about any contention on the network. However is this only a theoretical limit because of the need to take into consideration other overheads ? Does this mean that if your ports are averaging say 90 % utilisation over a sustained period would this impact on the performance of the network. Or if users are happy with the speed of the network should I worry about the fact that I would be using 90 % utilisation on the port. I have heard a figure of 60 % utilisation on a switched network should be the maximum allowed before considering upgrading the bandwidth or implementing traffic management ? Is this true ? Thanks Matt_Corp Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=13339&t=13339 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]