Lenovo CN4093 Application Manual page 125

PVID = 2
© Copyright Lenovo 2015
As shown in Figure 6, the tagged packet remains unchanged as it leaves the switch
through port 5, which is configured as a tagged member of VLAN 2. However, the
tagged packet is stripped (untagged) as it leaves the switch through port 7, which
is configured as an untagged member of VLAN 2.
Figure 6. 802.1Q tagging (after 802.1Q tag assignment)
Port 1 Port 2
802.1Q Switch
Port 6 Port 7
Untagged member
CRC* (*Recalculated)
of VLAN 2
Data
Note: Setting the configuration to factory default (CN 4093(config)# boot
configuration-block factory) will reset all non-management ports to
VLAN 1.
Port 3
CRC
Port 8
Outgoing
SA
untagged packet
changed
DA
(tag removed)
Tagged member
of VLAN 2
Data Tag SA DA
8100 Priority
16 bits 3 bits
After
Key
Priority - User_priority
CFI - Canonical format indicator
VID - VLAN identifier
Chapter 8: VLANs
CFI VID = 2
1 bit 12 bits
BS45014A
125