Can anyone provide me baseline numbers for transfer speeds over CAT6 & GB routers?

steveo122

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Jun 10, 2015
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I've had a feeling for some time that my wired network isn't performing the way it should. Wondering if anyone here can give me some solid baseline numbers from a known good CAT6/Gigabit network. Perhaps one or more of the following:
- Plain old windows machine to windows machine transfer
- LAN Speed Test util (http://www.totusoft.com/lanspeed.html)
- iperf
- Any other tool of your choice that runs on Windows

This would be a great help in determining if I have some wire (i.e. not shielded), router, or some other issues.

Thanks in advance for any info.....

 
Solution
Going lan-lan though a router you should be able to get pretty close to 1g. Many routers have a separate chip to do the lan that is basically a small switch. These chips are the same as you find in small switches and can pass traffic on all ports at full speed with no delays. The traffic never even goes to the router cpu or radio chips.

You have to be very careful how you measure this. Some transfer programs measure bits/sec and generally include the overhead for the mac/ip/tcp headers. Other give you the number in bytes/sec and these generally do not include the overhead which can easily be 10%.

Most bottlenecks are related to the disks or the file systems. People post here all the time asking why their Nas is so slow for some...
Going lan-lan though a router you should be able to get pretty close to 1g. Many routers have a separate chip to do the lan that is basically a small switch. These chips are the same as you find in small switches and can pass traffic on all ports at full speed with no delays. The traffic never even goes to the router cpu or radio chips.

You have to be very careful how you measure this. Some transfer programs measure bits/sec and generally include the overhead for the mac/ip/tcp headers. Other give you the number in bytes/sec and these generally do not include the overhead which can easily be 10%.

Most bottlenecks are related to the disks or the file systems. People post here all the time asking why their Nas is so slow for some reason thinking a $200 consumer box should do what even a $1000 small business system should do.

IPERF is one of the simpler tools and you should get well over 900mbit...there is always some overhead that seems to slow it down.
 
Solution