Command to check Giga Bit speed - Please help

[Former Member]

Hi,

Does anybody know a command to check the speed between two UNIX server and make sure that it has Giga-Bit card speed or 2,3,4 GB card speed.

I will appreciate your help.

Regards,

Sume

[Former Member]

A simple check i often use is to copy a large file with scp. Obviously this is not too reliable, but you might give it a try.

mho@host1> scp system.data1 mho@host2:/dev/null
system.data1                100% 1000MB  25.0MB/s  27.4MB/s   00:40

Gigabit should be somewhere from 50mb/s to 80mb/s.

Regards, Michael

Edit: hmm, for the higher speeds, your disks might not be fast enough...

[markus_doehr2]

> Edit: hmm, for the higher speeds, your disks might not be fast enough...

...or the encryption/decryption is not working fast enough (here comes pure CPU speed into place when using scp).

I'd use ftp (which is not as CPU bound as scp/sftp) or "nc" (netcat - http://netcat.sourceforge.net/). The latter doesn't create files but just uses the network.

Markus

[markus_doehr2]

There are different tools on different Unix flavors. What "Unix" are you using?

Markus