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Managing the MAC Address Table
Command
Step 4
show mac address-table static
Step 5
copy running-config startup-config
To disable unicast MAC address filtering, use the no mac address-table static mac-addr vlan vlan-id
global configuration command.
This example shows how to enable unicast MAC address filtering and to configure the switch to drop
packets that have a source or destination address of c2f3.220a.12f4. When a packet is received in
VLAN 4 with this MAC address as its source or destination, the packet is dropped:
Switch(config)# mac
Displaying Address Table Entries
You can display the MAC address table by using one or more of the privileged EXEC commands
described in
Table 5-4
Commands for Displaying the MAC Address Table
Command
show ip igmp snooping groups
show mac address-table address
show mac address-table aging-time
show mac address-table count
show mac address-table dynamic
show mac address-table interface
show mac address-table notification
show mac address-table static
show mac address-table vlan
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
5-26
Purpose
Verify your entries.
(Optional) Save your entries in the configuration file.
a
ddress-table static c2f3.220a.12f4 vlan 4 drop
Table
5-4:
Description
Displays the Layer 2 multicast entries for all VLANs or the specified VLAN.
Displays MAC address table information for the specified MAC address.
Displays the aging time in all VLANs or the specified VLAN.
Displays the number of addresses present in all VLANs or the specified VLAN.
Displays only dynamic MAC address table entries.
Displays the MAC address table information for the specified interface.
Displays the MAC notification parameters and history table.
Displays only static MAC address table entries.
Displays the MAC address table information for the specified VLAN.
Chapter 5
Administering the Switch
OL-8915-03
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Troubleshooting
