Network Topology
Trunk Port & 802.1Q Tagging
① Trunk Forwarding – 802.1Q Tagging
② Native VLAN – Untagged
↺ Reset
Fa0/1
Fa0/2
Gi0/1 ▸ Trunk
Gi0/1 ▸ Trunk
Fa0/1
Fa0/2
PC1
VLAN 10
PC3
VLAN 99 – Native
SW1
SW2
PC2
VLAN 10
PC4
VLAN 99 – Native
Dest
MAC
Src
MAC
802.1Q
VLAN 10
Data
Payload
FCS
CRC
SWITCH_OS › CONSOLE LOGS
● TRUNK ONLINE
System ready. The SW1↔SW2 trunk is configured for 802.1Q. Native VLAN = 99.
Trunk Interface Config
Gi0/1
Property
Value
Mode
Trunk (802.1Q)
Native VLAN
VLAN 99 – Untagged
Allowed VLANs
10, 99
Frame on Trunk
Idle…