Bandwidth test for a 20Gb link

Hi,

I have 2x3750E with 2x10Gbps link between them.
I've configure an etherchannel between the switch to obtain a 20Gbps
link.

How can i test the real bandwidth?

Thank you
Guercio

 

With a lot of computers?
With a dedicated tester such as a Smartbits?

 

Ordinarily I'd suggest 'iperf' which is a PC-based tester; however I
suspect it's going to take one hell of a PC - or several - to saturate a
20Gbps link.

 

If you make a loop in the equipment in test and insert traffic, it is a
matter of time to get a broadcast storm generated, that fullfills the
bandwith of all interfaces, as long as the CPU of the equipment suports it.

 

That's quite ingenious

 

If you make a ton of tunnels in tunnels in tunnels, spread over dozens
of vlans, you can generate an ungodly amount of traffic from a single
ping.
I've seen a 100 byte ping over fast ethernet between two devices that
were directly connected take over 2 hours.
Learn your tcl scripting and get to making those tunnels.