Hi. We currently had four main building with a Cisco 3550 on the ground floor of each linked in a ring by fibre at 1gb.Links to floors to each 3500 at 100MBPSWe have maybe only or or two links to a floor - so often switches are diasy chained at the f...

We have had a policy of simply buying in Cisco switches whenever necessary for about four years now - so we have 2900s, 2924s, 2950s and some 2970s and 3550s all with whatever version of IOS they turned up with.Is it advisble to go around and upgrade...

Seems obvious? Well we had loops caused by a wrong connection that caused hang ups on two of our core 3550 switches when we tried to plug in two new 2970s via fibre cables.Anyway, that problem is over - we plugged the 2970s into some 3COM Corebuilder...

What port settings should Iuse ona Cisco 2950 or 2924 switch series if I want to plug in into a 3COM Corebuilder 3500 with ethernet ports?The 3COMs dont have any trunks defined. We have triedthis, only to have the 3COMs blip out for a second or two a...