IBM RackSwitch G8000

98 RackSwitch G8000: Application Guide
Figure 6. 802.1Q tagging (after 802.1Q tag assignment)
BS45014A
Port 6 Port 7 Port 8
Port 1
Port 4 Port 5
Port 2 Port 3
802.1Q Switch
Key
Priority
CFI
VID
- User_priority
- Canonical format indicator
- VLAN identifier
PVID = 2
Tagged member
of VLAN 2
Untagged member
of VLAN 2
After
DA
SA
Data
CRC*
(*Recalculated)
Outgoing
untagged packet
changed
(tag removed)
DASADataCRC Tag
VID = 2Priority
16 bits 3 bits 1 bit 12 bits
8100 CFI