Ducati Sporting Club UK > General > Technical - Help or Info - NON Motorcycle > serious network tech question !

[Redsps]

Does anyone know what the maximum cat5 cable lenght can be from server to hub and router to hub.
i need to extend my gigabit ethernet without to much drop out but cant recall the cable lenths that can be used, eg router to hub, hub to server, and overall lenght including all bits and bobs in between.
I recall it being 300ft, but things do not seem to work out somehow.
thanks
R

[antonye]

The maximum length (maximum certifiable length) for CAT 5 patch or crossover cables is 328 feet (100 meters).

[TP]

100m is the max distance between repeaters.

[Murray Mint]

Well done guys, go to the front of the class.

[TP]

Originally posted by antonye
The maximum length (maximum certifiable length) for CAT 5 patch or crossover cables is 328 feet (100 meters).

I've been out-nerded!

[twpd]

I was about to say 330 feet but, I wasn't precise enough.

[antonye]

Originally posted by TP
I've been out-nerded!

Out-Googled more like!

[crm250]

However getting anything like a gig over more than 20 meters will be fun.
If using cheapo switches with gig uplinks then you will be lucky to get more than 150 - 200 over that kind of distance. I use 3com 4900 series switches and have seen 800 over 40 meters, if you bind them up and use a couple together then you get some reasonable throughput.
Have you thought about fibre ?

[Redsps]

I have two separate lines at present, both with broadband on.
One has a 2meg link, the other with a 1meg .
I have now changed to a 4.5 meg (fastest I can Get)connection with BT on just the one line.
I really would like to link all systems to the one line, but they are separated by approx 50-60 feet.
I use dual gigabit NIC's,hubs etc in all servers and workstations, in both locations, but so far overall network speed has been disapointing.
Servers are compaq 4 x 8500R's with 8 cpu's and 4gig ram etc, two have 4 nic' fitted, and 2x ML530G2's with high spec .
workstations are evo P4 xeons.
I ,ve messed about with shed loads of configs, but I have the power it seams, but not the bandwith, or morelikely lack of greycells at present, its been a while since I did any networking.
I have some fibre channel and fibre networking kit lying around, but not sure it will be much better than giga ethernet.
Any suggestions on the best way to get maximum speed to bandwith etc over the said distance.
any help gratefully recieved.

cheers
R

[crm250]

Can you draw a diagram please and mail it to me ? not too sure of what you are trying to achieve i presume you have servers separated 50 feet apart and want max through put between units over the distance.
Using good quality switches then that should be a doddle, but said that what type of data are you moving ?
As much info as poss would help.
Whats the broadband for ?