Bandwidth issues between campuses

[ndoggfromhell]

Currently the car dealership I work at is using all Cisco 100 mbit switches (2950 series). Buildings are connected by fiber that is converted to ethernet through Allied Telesis, Inc AT-MC102XL. We have 7 total buildings. 3 on one campus, 4 on the other. We're having bandwidth issues between the campuses and I'm wondering if we're just saturating the 100 mbit fiber connecting the campuses. Would a change to gigabit help? Currently we're using ADP (a tcp/ip intense DMS), plus many internet based parts catalogs. Would going to gigabit create any problems? Should I try to go gigabit between the builds as well, or try just the campus approach first?

Suggestions from the IT gurus

 

[spidey07]

I'd see if that is actually the problem. You could have some underlying problem and excess bandwidth utilization is the symptom, not the cause. You can download MRTG to monitor all your ports to see what the actual utilization is.

 

[imported_snikt]

Monitor your servers. The problem may not be the network as the other poster suggested. The bottleneck may be at the servers or at the desktops depending on how much I/O is being done by either the servers or desktops.