Network help

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Jarrod

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This might sound crazy but here goes.

Small business network 7 pcs including our server machine (runs a program that all the other pcs connect too) all connected to one hub. Another 5 pcs connecting to another hub and then one connection from the one hub to the other switch. We are experiencing a bottleneck with the hub that the 5pcs connect too, in that sometimes the connection to the server becomes a bit slow. If we run another network cable between the hubs will it help at all?

All pcs and switches are 1Gb

Your input will be apreciated.
 
methinks getting better switches and checking that cable would be a better option.

it's only 12 pc's total. on a 1GB network there should be no bottleneck.
 
AstroTurf said:
methinks getting better switches and checking that cable would be a better option.

it's only 12 pc's total. on a 1GB network there should be no bottleneck.
Click to expand...



Thanks at least i have a starting point now :)
 
check cable first.

see what the result is.
swap the switches
see what the result it...
 
AstroTurf said:
sorry, what is the distance between the switches?
Click to expand...

Just checked and found that who ever installed it put a (by the looks of the cable rolled up) about 30 meters but the distance between the switches are about 15 meters. Just been in the roof seems like it is a 45meter+ cable will replace it with correct lenght.
 
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still way to short to be an issue but yea, check cable first as that will be the cheapest to replace.

have you tried a different port on the switches for the cable?
 
Yes that was the 1st thing i tried. I changed the cable will see if that helps.
Thanks for the help :)
 
noworries and hope it helps.
at worst you may need to replace one switch, at least you can keep the faulty one (if past warranty) as an emergency spare.
 
You use hub and switch terminology. Which one is it? Hub is shared media whereas switch is dedicated.

Quite possible a PC on the hub is pushing the hub, maybe the backplane is oversubscribed? - you can check the link lights for this (normally flashing faster depending on amount of traffic). Also hubs are open to loops, which would slow down the hub considerably.

Possibly list make and model of the devices
 
Jarrod said:
This might sound crazy but here goes.

Small business network 7 pcs including our server machine (runs a program that all the other pcs connect too) all connected to one hub. Another 5 pcs connecting to another hub and then one connection from the one hub to the other switch. We are experiencing a bottleneck with the hub that the 5pcs connect too, in that sometimes the connection to the server becomes a bit slow. If we run another network cable between the hubs will it help at all?

All pcs and switches are 1Gb

Your input will be apreciated.
Click to expand...

If the switches are managed switches and you can setup etherchannels on them both then yes, you can add another cable. If the switches are just "dumb" switches then nooooooo :) you will just create a loop and bring the whole network down...

Edit: If one is an actual Hub and not a switch, replace that bugger even if it's not a switch problem. Hubs (or another word for them:multi-port repeater) repeats all traffic it receives to all ports, causing unnecessary traffic, and only one device is allowed to send or receive traffic on the hub at any given time
Plenty reasons more why not to use them but the above should be sufficient to put anyone off from ever using a hub again... I hope :)
 
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Jarrod said:
This might sound crazy but here goes.

Small business network 7 pcs including our server machine (runs a program that all the other pcs connect too) all connected to one hub. Another 5 pcs connecting to another hub and then one connection from the one hub to the other switch. We are experiencing a bottleneck with the hub that the 5pcs connect too, in that sometimes the connection to the server becomes a bit slow. If we run another network cable between the hubs will it help at all?

All pcs and switches are 1Gb

Your input will be apreciated.
Click to expand...


check the cable between the two switches.
Swap the two switches around if possible, does the fault follow the switch move?

When you get slow response to the server, do you get slow response with other services? Ie Internet etc
 
2 x dlink DGS1008D Switches.

Changed the cable that connects the 2 switches and it seems better. Ended up that the instalation people used a 60 meter cable and most of it was rolled up in the roof where no one can see it.

Thanks for your replies guys :)
 
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