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Hi Gordon 2009/9/14 Gordon Henderson <gordon+dcglug@xxxxxxxxxx>: > On Mon, 14 Sep 2009, Richard Brown wrote: >> Can switches be responsible for network bottlenecks please? I >> understood that some switches can handle only a certain amount of >> transfer. So if I have 15 computers all using the network at the same >> time I am concerned that that could cause a bottleneck in the router. > > Small network switches ought to be fine - so if you have a single 16-port > switch it'll be OK. > > However if you have 4 or 5 small switches changed together then it may well > be a bottleneck depending on where you're data is going. > > What will also be an issue is using a hub rather than a switch. > > What does your network topology look like? How many switches, how are the > connected, etc. > Thanks for the reply. The network has a Buffalo NAS box acting as a file server and a Mac Pro serving Sage files and also using vm software to allow remote users to connect to Sage. It also has 10 xp boxes and 1 vista box on the network. Sage is connected to by anything up to 10 users and whilst Sage itself is low in data size the databases that users use through excel and access are huge. (Around 2gb in size). If a user tries a search on something like this the network slows to a halt and users lose connection with Sage. We only have one switch (a Netgear) and use the router to connect the Mac and also the printers. I am wondering whether it would be useful to set up a Linux box to monitor network traffic and see if there are any bottlenecks. I am installing server software on the Mac Pro to possibly set up the network differently instead of using workgroup as a network. The block seems to be Sage but I need the arguments clarified before I go back to management on this one. -- Kind regards Rich http://www.cregy.co.uk Embracing what God does for you is the best thing you can do for him. Romans 12 v 1 -- The Mailing List for the Devon & Cornwall LUG http://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html