[Demon]

Two lpars use virtual ethernet adapters to transfer data in a p595 system, I think they can send faster then the real ethernet adaper.
I found some samples in the redbook "IBM System p Advanced POWER Virtualization Best Practices", the main point is tune the MTU, tcp_sendspace and tcp_receivespace parameters, but I can not match the effect using those combinations.

such as MTU=65394, tcp_sendspace=262144, tcp_receivespace=262144

I use ftp to test with a big file over 2G, the transfer speed only 100MB/S, but it should be more than 600MB/S in the sample of page 84 to page 85.

How can I do that? Or I have to do some configurations on virtual ethernet adapters?