I am a little confused about the concepts of active vlan and active port.
I would try a definition of active vlan:
1 - The vlan must be configured.
2 - The vlan must have some ports configured in it.
3 - The vlan has not been shut down with the "shutdown vlan" command.
So, I would try a definition of active port too:
1 - The port must belong to an active vlan.
2 - The port has not been shut down.
I think that these two definitions, note that the second definition use the first one,
make sense, in particular if I consider the term active as an attribute that tell me
that the switch is doing some type of work with the vlan or port. For example, if the
vlan has not some ports configured in it, it exists but the switch does not any type
of work with it, check the mac-address-table etcetera.
What do you think about? Is it possible to give a better definition? Am I forgetting something?