Chapter 18
| VLAN Commands
Configuring L2CP Tunneling
– 496 –
switchport
l2protocol-tunnel
This command enables Layer 2 Protocol Tunneling (L2PT) for the specified protocol.
Use the no form to disable L2PT for the specified protocol.
Syntax
switchport l2protocol-tunnel {cdp | custom-pdu index | lldp | pvst+ |
spanning-tree | vtp}
cdp - Cisco Discovery Protocol
custom-pdu - User defined PDU
index - Identifies a custom PDU defined with the l2protocol-tunnel custom-
pdu command. (Range: 1-16)
lldp - Link Layer Discovery Protocol
pvst+ - Cisco Per VLAN Spanning Tree Plus
spanning-tree - Spanning Tree (STP, RSTP, MSTP)
vtp - Cisco VLAN Trunking Protocol
Default Setting
Disabled for all protocols
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
â—† Refer to the Command Usage section for the l2protocol-tunnel tunnel-dmac
command.
â—† For L2PT to function properly, QinQ must be enabled on the switch using the
dot1q-tunnel system-tunnel-control command, and the interface configured to
802.1Q uplink mode using the switchport dot1q-tunnel mode command.
Example
Console(config)#dot1q-tunnel system-tunnel-control
Console(config)#interface ethernet 1/1
Console(config-if)#switchport dot1q-tunnel mode access
Console(config-if)#switchport l2protocol-tunnel spanning-tree
Console(config-if)#
Related Commands
l2protocol-tunnel custom-pdu (492)
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