Frame Format - ZyXEL Communications MES-2110 User Manual

Chapter 12 VLAN

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
DA SA SPTPID Priority
Table 33 802.1Q Frame
DA
SA
(SP)TPID
VID
104
DA
SA TPID Priority VID
VID TPID Priority VID
Destination Address
Source Address
(Service Provider) Tag Protocol
IDentifier
VLAN ID
SA Len/ Data
Etype
Len/ Data
Etype
Len/ Data
Etype
Priority 802.1p Priority
Len/ Length and type of Ethernet
Etype frame
Data Frame data
FCS Frame Check Sequence
MES-2110 User's Guide
FCS Untagged
Ethernet
frame
FCS IEEE 802.1Q
customer
tagged
frame
FCS Double-
tagged
frame