We tried to upgrade a 2 member Virtual chassis ( EX4300 ) switches running version 13.2X51-D35.3 to 14.1X53-D45.3
The procedure did not work.
1. NSSU pushed the OS to backup switch, upgraded and rebooted it.
2. The next step of NSSU which switches the masterhip ( VC ) to upgrade the second device did not work.
3. I waited for almost 2 hours and finally one switch which is suposed to go to backup after successful NSSU procedure went to linecard state with still having the old software.
Errors noticed are shown below
fpc0 BULKGET: trying REconnection, attempt 2700 to 0x80000006
Can somebody let me know if NSSU works between the version i mentioned above, as i dont see any caveats for NSSU from 13.2X51-D35.3 to 14.1X53-D45.3