commonly known the link state of a svi depends on the link state of the physical switchports which belong to this vlan.
So if there is no switchport up in this vlan the svi goes down, too.
Does anybody know where this behaviour is described in cco documentation?
Furtheron, does anybody know if only the link state of the switchports is responsible for the link state of the svi or also the stp state of the switchports.
So if there would be one switchport up left in the vlan but this switchport would be blocked, what would be the state of the svi?
This scenario of one switchport blocking in a vlan is possible for a short time period when the root port of a switch looses connectivity and the alternate port needs to change from blocked to forwarding.