04-Layer 2 - LAN Switching Configuration Guide

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01-MAC address table configuration
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01-MAC address table configuration 44.42 KB

Configuring the MAC address table

About the MAC address table

An Ethernet device uses a MAC address table to forward frames. A MAC address entry includes a destination MAC address, an outgoing interface, and a VLAN ID. When the device receives a frame, it uses the destination MAC address of the frame to look for a match in the MAC address table.

·     The device forwards the frame out of the outgoing interface in the matching entry if a match is found.

·     The device floods the frame in the VLAN of the frame if no match is found.

Display and maintenance commands for MAC address table

Execute display commands in any view.

 

Task

Command

Display MAC address table information.

display mac-address [ mac-address [ vlan vlan-id ] | [ [ dynamic | static ] [ interface interface-type interface-number ] | blackhole | multiport ] [ vlan vlan-id ] [ count ]]

Display the aging timer for dynamic MAC address entries.

display mac-address aging-time

Display the system or interface MAC address learning state.

display mac-address mac-learning [ interface interface-type interface-number ]

Display the MAC address move records.

display mac-address mac-move [ slot slot-number ]

Display MAC address statistics.

display mac-address statistics

 

 

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