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 mac address-table dynamic
show mac address-table dynamic
Use the show mac address-table dynamic user EXEC command to display dynamic MAC address table
entries only.
show mac address-table dynamic [address mac-address] [interface interface-id] [vlan vlan-id]
[ | {begin | exclude | include} expression]
Note Beginning with Cisco IOS Release 12.1(11)EA1, the show mac address-table dynamic command
replaces the show mac-address-table dynamic command (with the hyphen).
Syntax Description
Command Modes User EXEC
Command History
Usage Guidelines 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 mac address-table dynamic command:
Switch> show mac address-table dynamic
Mac Address Table
------------------------------------------
Vlan Mac Address Type Ports
---- ----------- ---- -----
1 0030.b635.7862 DYNAMIC Gi0/2
1 00b0.6496.2741 DYNAMIC Gi0/2
Total Mac Addresses for this criterion: 2
address mac-address (Optional) Specify a 48-bit MAC address; the valid format is H.H.H.
interface interface-id (Optional) Specify an interface to match; valid interfaces include physical
ports and port channels.
vlan vlan-id (Optional) Display entries for a specific VLAN; the range is 1 to 4094.
| 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(4)EA1 This command was introduced.
12.1(11)EA1 The show mac-address-table dynamic command was replaced by the show
mac address-table dynamic command.