cisco vlan: can a trunk port talk to an access port under the same vlan?

Question

Let's say we have a trunk port A with native vlan 2, access port B with vlan 2.

When A send an untagged frame to B, can B receive it?

When A send a tagged frame with vlan id 2 to B, can B receive it?

Answer 1

Let's say we have a trunk port A with native vlan 2, access port B with vlan 2.

When A send an untagged frame to B, can B receive it?

If the trunk port is not configured with vlan dot1q tag native, then yes B can receive it, because A sees all untagged frames in the native vlan (vlan2)

When A send a tagged frame with vlan id 2 to B, can B receive it?

If you use native vlan tagging... the command is vlan dot1q tag native. Note that this tags all frames, and I think it now would ignore untagged frames.