L2Protocol-Tunnel - Cisco MWR 2941 Command Reference Manual

l2protocol-tunnel

l2protocol-tunnel
To enable the protocol tunneling on an interface and specify the type of protocol to be tunneled, use the
l2protocol-tunnel command in interface configuration mode. To disable protocol tunneling, use the no
form of this command.
cdp
Syntax Description
lldp
stp
vtp
Defaults
Disabled
Command Modes
Interface configuration
Command History Release
12.2(14)SX
12.2(17d)SXB
12.2(33)SRA
15.0(1)MR
Usage Guidelines
On all the service provider edge switches, you must enable PortFast BPDU filtering on the 802.1Q tunnel
ports by entering these commands:
Router(config-if)# spanning-tree bpdufilter enable
Router(config-if)# spanning-tree portfast
Note PortFast BPDU filtering is enabled automatically on tunnel ports.
If you do not specify a protocol, all protocols are tunneled.
You can configure protocol tunneling on VLAN and trunk interfaces.
You must enter the switchport command once without any keywords to configure the LAN port as a
Layer 2 interface before you can enter additional switchport commands with keywords. This action is
required only if you have not entered the switchport command for the interface.
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
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l2protocol-tunnel [cdp | stp | vtp]
no l2protocol-tunnel [cdp | stp | vtp]
(Optional) Enables Cisco Discovery Protocol (CDP) tunneling.
(Optional) Enables Link Layer Discovery Protocol (LLDP) tunneling.
(Optional) Enables Spanning Tree Protocol (STP) tunneling.
(Optional) Enables VLAN Trunking Protocol (VTP) tunneling.
Modification
Support for this command was introduced on the Supervisor Engine 720.
Support for this command on the Supervisor Engine 2 was extended to
Release 12.2(17d)SXB.
This command was integrated into Cisco IOS Release 12.2(33)SRA.
This command was integrated into Cisco IOS Release 15.0(1)MR.
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
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