Vlan down, line protocol down

What I am trying to re-do was working but I needed to change the interface Vlan as 246 was configured on a netscreen firewall.

So i ran:
conf t
no interface Vlan246

then ran:
interface Vlan250
 description IVTEST
 ip address xxx.xxx.xxx.237
 no shut

then ran:
conf t
int fa4/9
no switchport access vlan 246
switchport access vlan 250

But I have:
Vlan250 is down, line protocol is down

from conf:
#sh run int Vlan250
Building configuration...

Current configuration : 114 bytes
interface Vlan250
 description IVTEST
 ip address xxx.xxx.xxx.237

#sh run int fa4/9
Building configuration...

Current configuration : 147 bytes
interface FastEthernet4/9
 description X-CONN-IVTEST
 switchport access vlan 250
 switchport mode access
 no cdp enable

#sh int fa4/9
FastEthernet4/9 is up, line protocol is up (connected)

after running no shut the log shows:
Mar 27 14:36:08.840 EST: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan250, changed state to down
Mar 27 14:38:06.279 EST: %LINK-3-UPDOWN: Interface Vlan250, changed state to down

fa4/9 is connected to customer firewall, there's a static route to their larger subnet to xxx.xxx.xxx.238

I can find very little information on a down.down scenario where there is a physical port assigned to the vlan which is up/up.

I do not know if the previous Vlan was up/up immediately prior my changes, only that it was working yesterday in the first Vlan, which was changed because it was a duplicate (vlan246) configured on a netscreen sub interface...was that why 246 was working?

This is my first time setting up a new customer vlan on this switch. maybe i am missing a step?

Thanks for reading.
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Istvan KalmarHead of IT Security Division Commented:

you need to add VLAN250 to vlan database

you need
vlan data
 vlan 250 name IVTEST

Best regards,

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btray900Author Commented:
I did not state the IOS version, this command set is being deprecated according to the IOS version in use, so global conf mode was used.

Thank you for an accurate and quick response!
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