154 | VLAN Commands
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show dot1q-tunnel
This command displays whether an interface is enabled for Double VLAN Tunneling, along with the 
system-configured etherType and detailed information about Double VLAN Tunneling for the 
specified interface, or a list of interfaces and their tunneling status. This command performs the same 
function as show dvlan-tunnel.
Syntax
show dot1q-tunnel [interface {unit/slot/port | all}]
Parameters
 
Mode
Privileged Exec and User Exec
Command
History
Usage
Information
The following screen capture shows the use of the three ways of using the command—without the 
interface keyword and with the keyword followed by a port number or all.
Example
Figure 7-51.  Example of Use of show dvlan-tunnel l2pdu-forwarding Command
Related
Commands
 
interface {unit/slot/port | 
all}]
Enter the interface keyword followed by either a specific address in the 
form of 
unit/slot/port or enter the word all. 
Unit/Slot/Port—Valid unit, slot and port number separated by forward 
slashes.
Version 2.5.2 Unsupported: This command was not tested in SFTOS 2.5.2, so is not supported
Version 2.5.1 Unsupported: This command was not tested in SFTOS 2.5.1, so is not supported
(S50-8) >show dot1q-tunnel ?
<cr>                     Press Enter to execute the command.
interface                Enter interface.
(S50-8) >show dot1q-tunnel
Interfaces Enabled for DVLAN Tunneling......... None
(S50-8) >show dot1q-tunnel interface 1/0/1
Interface Mode    EtherType
--------- ------- --------------
1/0/1     Disable 802.1Q
(S50-8) >show dot1q-tunnel interface all
Interface Mode    EtherType
--------- ------- --------------
1/0/1     Disable 802.1Q
1/0/2     Disable 802.1Q
1/0/3     Disable 802.1Q
1/0/4     Disable 802.1Q
1/0/5     Disable 802.1Q
1/0/6     Disable 802.1Q
1/0/7     Disable 802.1Q
1/0/8     Disable 802.1Q
1/0/9     Disable 802.1Q
1/0/10    Disable 802.1Q
!-------------[output truncated]---------------!
dvlan-tunnel ethertype Enable/disable the l2pdu-forwarding mode.
mode dot1q-tunnel Enable Double VLAN Tunneling on the specified interface.
mode dvlan-tunnel same as above