We have dozens of switches around our sites. We use VLAN 3 for VoIP. It's becoming unmanageable tagging only those ports which have VoIP devices plugged into them as, invariably, the socket designation on the wall/patch panel unavoidably differs from the port number on the switch.
What are the dangers of simply tagging ALL ports with this VLAN, given that less than 10% of them will ever have a device plugged in which can make use of that traffic?
Thanks in advance.