Following on from the external network audit that was ordered an HP Procurve 5406zl was purchased. I was assured by the auditor that this would handle future iSCSI requirements as well as the current network size and traffic.
Imagine my horror when I read that I could only utilise Flow Control or Jumbo Frames. I want both for an iSCSI implementation! Worse still, I couldn’t even find the option to turn Jumbo Frames off and on!
After a few hours of flicking backwards and forwards through the various configuration pages available on the web interface I finally did that thing that people like me use as a last resort and RTFM. I found my answer (below) and now everything works perfectly – you can have both on the 5406 and I imagine on a few other model numbers too, there is a note in one of the firmware releases which explains that it was incorrectly published in some previous document.
How to do it: