I just started as IT Manager at this company and things are in a bit of a mess. They are running 6 servers and have about 60 nodes on a 192.168.0.0 subnet. The servers go into a DLink unmanaged gigabit switch and the other nodes connect to various stacked unmanaged switches which then connect into the Dlink. This is a rough idea of what I am looking at:
Internet -> T1 modem/router -> Cisco Pix 515e -> DLink switch -> 6 Servers (file servers, application servers, web server, exchange server)
Various switches ->all other pcs, printers, etc
We have been struck with intermittent internet outages and slowed connections to the servers and other nodes. I am open to suggestions at this point. I was looking at changing the DLink backbone switch out with a higher quality managed gigabit switch and then replacing the other switches with higher quality 24 or 48 port managed switches. How does this sound?