Cisco Catalyst 3550

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Catalyst 3550 Multilayer Switch Command Reference
OL-8566-01
Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
show l2protocol-tunnel
show l2protocol-tunnel
Use the show l2protocol-tunnel user EXEC command to display information about Layer 2 protocol
tunnel ports. Displays information for interfaces with protocol tunneling enabled.
show l2protocol-tunnel [interface interface-id] [summary] [ | {begin | exclude | include}
expression]
Syntax Description
Command Modes User EXEC
Command History
Usage Guidelines After enabling Layer 2 protocol tunneling on an access or IEEE 802.1Q tunnel port by using the
l2protocol-tunnel interface configuration command, you can configure some or all of these parameters:
• Protocol type to be tunneled
• Shutdown threshold
• Drop threshold
If you enter the show l2protocol-tunnel [interface interface-id] command, only information about the
active ports on which all the parameters are configured appears.
If you enter the show l2protocol-tunnel summary command, only information about the active ports
on which some or all of the parameters are configured appears.
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output
do not appear, but the lines that contain Output appear.
Examples This is an example of output from the show l2protocol-tunnel command:
Switch> show l2protocol-tunnel
COS for Encapsulated Packets: 5
Port Protocol Shutdown Drop Encapsulation Decapsulation Drop
Threshold Threshold Counter Counter Counter
------- -------- --------- --------- ------------- ------------- -------------
interface interface-id (Optional) Specify the interface for which protocol tunneling information
appears. Valid interfaces are physical ports and port channels; the port
channel range is 1 to 64.
summary (Optional) Display only Layer 2 protocol summary information.
| begin (Optional) Display begins with the line that matches the expression.
| exclude (Optional) Display excludes lines that match the expression.
| include (Optional) Display includes lines that match the specified expression.
expression Expression in the output to use as a reference point.
Release Modification
12.1(9)EA1 This command was introduced.