I have two 24-port switches that in turn connect to 6 24-port switches. There's a device trying to FTP into a PC at each of the leaf ports (6 x 24 devices). All at once.
On the PC end, I am trying to make sure that the bandwidth is adequate for the job. So, i grabbed a quad port 1000GT card by Intel. Teaming for performance.
Long story shot, intermittently the kernel time goes to 25% on a quad CPU system, locking up anything network-related. What would you recommend?