Administrator Guide

destination address within the timer period, the address is removed from the table. The default aging time is
1800 seconds in PMUX mode and 300 seconds in Standalone and VLT modes.
You can manually clear the MAC address table of dynamic entries.
To clear a MAC address table, use the following command:
1 Clear a MAC address table of dynamic entries. EXEC Privilege mode
clear mac-address-table dynamic {all | interface {tengigabitethernet <0–5> | SLOT/
PORT} }
• all: deletes all dynamic entries.
• interface: deletes all entries for the specified interface.
Displaying the MAC Address Table
To display the MAC address table, use the following command.
• Display the contents of the MAC address table.
EXEC Privilege mode
NOTE: This command is available only in PMUX mode.
show mac-address-table [address | aging-time [vlan vlan-id]| count | dynamic |
interface | static | vlan]
• address: displays the specified entry.
• aging-time: displays the configured aging-time.
• count: displays the number of dynamic and static entries for all VLANs, and the total number of
entries.
• dynamic: displays only dynamic entries.
• interface: displays only entries for the specified interface.
• static: displays only static entries.
• vlan: displays only entries for the specified VLAN.
Disabling MAC Address Learning on the System
You can configure the system to not learn MAC addresses from LACP and LLDP BPDUs.
To disable source MAC address learning from LACP and LLDP BPDUs, follow this procedure:
• Disable source MAC address learning from LACP BPDUs.
CONFIGURATION mode
mac-address-table disable-learning lacp
• Disable source MAC address learning from LLDP BPDUs.
CONFIGURATION mode
mac-address-table disable-learning lldp
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