Extreme Networks

After configuring my X480 switches to use MVRP, now I noticed 2 of the switches I planed to use on access layer, are X400, XOS on them is 7.7e.2.4 and BootRom 5.1 I can see there is no MVRP under current OS and I know these switches are ancient  But...

I have a few X480 extreme switches here at Intel and want to upgrade the OS on them I already got summitX480-16.2.3.5-patch1-14.xos from extreme website but during downloading it to switch (after tftpd32 finished its job) switch says "Error: File cou...