Slow Net Bandwidth

dave68 · 08-19-2006, 04:26 PM

I am looking for a program to search the network (Over 200 PC's) to find the culprit that's using up the bandwidth ,

Our office 1.2Mbps Bandwidth drops to 32kbps and lower at times , I think that someone is downloading lots or we have a Virus or some spyware on the network.

bilbus · 08-21-2006, 02:24 PM

I use MRTG to monitor our sites bandwidth, but for each PC thats kinda hard unless you have managed switches.

The best way is to run ping 198.6.1.2 /t on a laptop pluged into network (near your rack or switching core)

watch the pings and unplug one switch at a time to figure out what computer on what switch is using up all the bandwidth (the ping will go back to a fast speed when you unplug the correct switch) Then on the switch unplug each connection until you have the same result. You will find the correct one in just a few mins.

I did this a little while back on a fairly large network, took less then 30 mins

08-19-2006, 04:26 PM	#1 (permalink)
dave68 Bronze Member Join Date: May 2006 Posts: 57	Slow Net Bandwidth I am looking for a program to search the network (Over 200 PC's) to find the culprit that's using up the bandwidth , Our office 1.2Mbps Bandwidth drops to 32kbps and lower at times , I think that someone is downloading lots or we have a Virus or some spyware on the network.

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08-21-2006, 02:24 PM	#2 (permalink)
bilbus Bronze Member Join Date: Aug 2006 Posts: 88	I use MRTG to monitor our sites bandwidth, but for each PC thats kinda hard unless you have managed switches. The best way is to run ping 198.6.1.2 /t on a laptop pluged into network (near your rack or switching core) watch the pings and unplug one switch at a time to figure out what computer on what switch is using up all the bandwidth (the ping will go back to a fast speed when you unplug the correct switch) Then on the switch unplug each connection until you have the same result. You will find the correct one in just a few mins. I did this a little while back on a fairly large network, took less then 30 mins