The upgrade behavior for dual homed FEX is described in the upgrade guide below. If you follow the process in the guide the FEX will be rebooted once, after the primary switch is successfully upgraded. You initiate the FEX reboot when you are ready...
No. If you try to configure a 5596 with multiple N55-M160L3-V2 in the configuration tool you will receive an error "Max [1] N55-M160L3 can be selected per chassis."
The licensing breakdown (Data vs Sec vs UC vs IPBase) is described here:http://www.cisco.com/en/US/prod/collateral/routers/ps10616/white_paper_c11_556985.htmlThe Data license would unlock a set of features listed in the document above and beyond IPBa...
NX-OS 5.2(1)N1(1) introduced logging of an ACL on the mgmt0 interface. http://www.cisco.com/en/US/docs/switches/datacenter/nexus5000/sw/release/notes/Rel_5_2_1_N1_1/Nexus5000_Release_Notes_5_2_1_N1.html
Based on the output the secondary switch (switch 2) is now acting as the primary. The "show vpc" output indicates this in the "vPC role" line. The switch expects to be secondary, but is acting as the primary because the primary failed/rebooted/etc....
