Hello all, I've been going through "The Switch Book" by Rich Seifert and have a question on a statement made. The statement is "VLAN identifier 0x000 is specifically reserved for this purpose [priority tagged frame]" but there is a foot note that specifies: "Since the complexity of implementing tagging for priority is not signficantly less than that of implementing tagging for VLANs, most devices that insert tags do so in a VLAN context and use a non-zero value for the VLAN identifier."
Now when I read the footnote I took it to mean that if all I want is priority some devices will still place a VLAN identifier in the frame. If that's true, what VLAN identifier would the device place in the tagged frame?
I'm a bit confused.
Thanks in advance,