D-Link DGS-3700-12 User Manual page 65

DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
Figure 4- 2 IEEE .Q Tag
The EtherType and VLAN ID are inserted after the MAC source address, but before the original EtherType/Length or
Logical Link Control. Because the packet is now a bit longer than it was originally, the Cyclic Redundancy Check
(CRC) must be recalculated.
Figure 4- 3 Adding an IEEE .Q Tag
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