Failed to convert interface vlan

[jeronimo]

Hello,

Maybe I'm missing sth obvious, is this "normal"? :

Test_BEB:1(mgmt:vlan)#convert vlan 4046
WARNING: The existing mgmt interface will be deleted and re-created with the given parameters, please reconnect to the switch and issue 'mgmt convert-commit' command before the 120 second rollback timer expires.
Continue with this operation (y/n) ? y
Failed to convert interface vlan

It's creating vlan 4046 ("vlan create 4046 type port-mstprstp 0") but neither attaching it to an i-sid nor converting it to mgmt. (previous platform vlan is 4047)

Tried this on 5320-24P-8XE (FE 9.0.4), 5320-24P-8XE (FE 9.2.0), 5520-48P (FE 8.10.3.0), behavior is the same "failed to convert"

Are there any prerequisites for this to work?

Thx

[RobertD1]

Can you specify a new I-SID and then change it back afterwards?

[jeronimo]

Not possible, reason for using convert command is that it works in one go.

Change i-sid attached to mgmt vlan and you're disconnected.

[RobertD1]

I see. I don't know why it behaves this way or did work before so will have to give way to Extreme to assist you. Sometimes scripts are useful to make changes that will complete all lines you want when doing it line at a time on CLI can cut you off.