hi all I have the following setup:
switchport access vlan 784
switchport mode dot1q-tunnel
no cdp enable
Trunk Port - Into Carrier Network
switchport trunk encapsulation dot1q
switchport trunk native vlan 4094
switchport mode trunk
spanning-tree bpdufilter enable
the Native Port on the tunnel interface = 1 and native vlan tagging is enabled on the switch.
what happens to untagged frames that hit the tunnel port from the customer? Imagine that they dont have their port as a trunk and are instead emitting untagged frames?
are these dropped or simply have a single Q-tag pushed and are then tunnelled through the carrier network?
I have followed the recommendation of making the trunk port have a native vlan that is not the native vlan of any of the tunnel ports.