The value of tmnxOspfVpnDomainType specifies type of the extended
community attribute exchanged using BGP to carry the OSPF VPN
Domain ID. This object applies to VPRN instances of OSPF only. An
attempt to modify the value of this object will result in an
'inconsistentValue' error when the vRtrID index for this row entry
is not a VPRN instance.
When the value is set to 'type0000', vpn-domain functionality is
disabled.