Table 25: Frame Format With 802.1Q Vlan Tag Inserted - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide
Table 25 shows the frame format with IEEE 802.1Q VLAN tag inserted.
Offset
0:5
6:11
12:13
14:15
16:17
18:1517
Broadcom
®
January 29, 2016 • 5718-PG108-R

Table 25: Frame Format with 802.1Q VLAN Tag Inserted

Description
MAC destination address
MAC source address
Tag Protocol ID (TPID)—0x8100
Tag Control Information (TCI):
• Bit 15:13—IEEE 802.1P priority
• Bit 12—CFI bit
• Bit 11:0—VLAN ID
The original EtherType
Payload
VLAN Tag Strip
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