Hubs and Switches

[pikk]

Hi,

Looking for a pro to give me some advice and tips on re-configuring my network. I'll try and provide as much info as possible.

Currently, I am sys admin for a 55 node (client) network running an NT4 PDC, BDC and Exchange 5.5 server. (most systems running 3Com NICs) Various other servers exist but are not as relevant. My big problem is collisions (they get so bad at times that they halt the server traffic completely) and I suspect it is the hubs and the way everything is configured. I took over from a previous sysadmin and needless to say...everything is a mess. What we have are 5 Intel Hubs (not switches) interconnected to one another through an RJ45 port on the front. Two are actually cascaded. My thinking is that this is the main problem. Also in use are various (3) other small 3com hubs to extend the network. Ever since installing a Linux box to server as a gateway for internet, mail etc., I have noticed a lot of duplex errors on the screen. I suspect as well that this is a result of the poor wiring and hub configuration. What I need to know is would swapping out 2-3 hubs for good quality switches provide a resolution? We are going to be expanding the network by about 10 users soon and I have to figure out how to upgrade and stabilize things first. Any help would be more than appreciated.

I thank you in advance,

Pikk

 

[benzito]

"Ever since installing a Linux box to server as a gateway for internet, mail etc., I have noticed a lot of duplex errors on the screen."

I would start by checking to see what the Linux box is set for. Sounds like it may be setup Full Duplex when Half-Duplex is what you need.

 

[pikk]

Thnx Benzito...I'll check it out.

 

[amandeephunjan]

man i would have straightaway gone for a switch as hubs that are not cascaded are prone to collisions and it also reduces the network throughput if company funds permit why not go in for switch network

 

[pikk]

amandeephunjan

Thanks for that. I totally agree and if it had been up to me at the time...I would have. Now that it's already in place...I have to make a good argument for changing it. That means convincing the powers that be. Not an easy taks at the best of times.

P