Switchport Dot1Q-Tunnel Mode - Supermicro SSE-G2252 User Manual

SSE-G2252/SSE-G2252P Switches User's Manual

switchport dot1q-tunnel mode

This command configures an interface as a QinQ tunnel port. Use the no form to disable
QinQ on the interface.
Syntax
switchport dot1q-tunnel mode {access | uplink}
no switchport dot1q-tunnel mode
access – Sets the port as an 802.1Q tunnel access port.
uplink – Sets the port as an 802.1Q tunnel uplink port.
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• QinQ tunneling must be enabled on the switch using the
system-tunnel-control
interface command can take effect.
• When a tunnel uplink port receives a packet from a customer, the customer tag
(regardless of whether there are one or more tag layers) is retained in the inner tag,
and the service provider's tag added to the outer tag.
• When a tunnel uplink port receives a packet from the service provider, the outer
service provider's tag is stripped off, and the packet passed on to the VLAN
indicated by the inner tag. If no inner tag is found, the packet is passed onto the
native VLAN defined for the uplink port.
Example
SSE-G2252(config)#interface ethernet 1/1
SSE-G2252(config-if)#switchport dot1q-tunnel mode access
SSE-G2252(config-if)#
Related Commands
"show dot1q-tunnel" on page 35-24
"show interfaces switchport" on page 27-16
command before the switchport dot1q-tunnel mode
35-22
dot1q-tunnel