ZyXEL Communications MES-2110 - Manual (Page 104)

Chapter 12 VLAN
MES-2110 User’s Guide
104
12.5.5 Frame Format
The frame format for an untagged Ethernet frame, a single-tagged 802.1Q frame
(customer) and a “double-tagged” 802.1Q frame (service provider) is shown next.
Configure the fields as highlighted in the MES-2110 VLAN Stacking screen.
Table 32 Single and Double Tagged 802.11Q Frame Format
DA SA Len/
Etype Data FCS Untagged
Ethernet
frame
DA SA TPID Priority VID Len/
Etype
Data FCS IEEE 802.1Q
customer
tagged
frame
DA SA SPTPID Priority VID TPID Priority VID Len/
Etype Data FCS Double-
tagged
frame
Table 33 802.1Q Frame
DA Destination Address Priority 802.1p Priority
SA Source Address Len/
Etype Length and type of Ethernet
frame
(SP)TPID (Service Provider) Tag Protocol
IDentifier
Data Frame data
VID VLAN ID FCS Frame Check Sequence