Problem: Setting MTU to 9000 on DSS V7 and Netgear switch not working
Solution: On the Netgear switches MTU must be set to 9216
You should investigate what the Switch and your NICs vendor recommends for using Jumbo frames as they should all be the same when using Jumbo frames.
More detailed information in the link below:
http://pages.uoregon.edu/joe/jumbo-clean-gear.html