yes, you can partition the qsfp+ ports to 4x10Gb and then use a suitable solution to physically split the connection to four 10Gb links.. one such option is via the MPO transceiver that you mentioned and the 10332 cable... and yes, 10332 has a MPO co...
I guess the main question should be: how long do you need firmware updates for?The x590 is not supported in the newest main-branch (33.x) anymore, but as long as 32.x is still maintained (it now moves from feature branch to maintenance branch) there ...
while the image-name might be the same (which may be what XIQ-SE is looking at), the x670-G2 chipset does not support 32.x or higher..the removal of support for the x670-G2 is mentioned in the 32.1 release notes as well..
number 3 sounds like a dead CMOS battery.. as long as the power-cable is connected the switch can retain the info on which config file to boot, but once the power cable is pulled due to the dead CMOS battery that can't be retained.
I can't comment on the Catalyst side, but can you paste the output of "show vlan21"?Also you're sure that there was traffic flowing that made the switch learn an FDB entry on VLAN21?
