I am totally new to the concept of VLAN and just read about it today. So sorry if my question sounds stupid.
Let's say I set up port g2 on a 10-port Cisco switch as a general port (thus can be part of multiple tagged/untagged VLANs). Furthermore, g2 is setup to be 1U,2U,3U,4T (VLAN 1,2,3,4 with 1,2,3 untagged and 4 tagged). No PVID is setup.
My question is what happens when an untagged frame is sent to port g2? Because no PVID is setup, how will the switch manage that frame?