The time at which the Configuration Revision Number was
(last) increased to its current value, as indicated in the
most recently received VTP advertisement for this management
domain when managementDomainVersionInUse is not version3(4)
or in the most recently received VTP VLAN database
advertisement for this management domain when
managementDomainVersionInUse is version3(4).
The value 0x0000010100000000 indicates that the device which
last increased the Configuration Revision Number had no idea
of the date/time, or that no advertisement has been
received.