R3303-HP 6600/HSR6600 Routers Layer 2 - LAN Switching Configuration Guide

Task Command

Remarks

Display MAC address

statistics.

display mac-address statistics [ | { begin | exclude |

include } regular-expression ]

Available in any

view.

MAC address table configuration example

Network requirements

As shown in Figure 1:

• The MAC address of Host A is 000f-e235-dc71 and belongs to VLAN 1. It is connected to

GigabitEthernet 4/0/1 of the device. To prevent MAC address spoofing, add a static entry for the

host in the MAC address table of the device.

• The MAC address of Host B is 000f-e235-abcd and belongs to VLAN 1. For security, because this

host once behaved suspiciously on the network, add a destination blackhole MAC address entry for

the host MAC address, so all packets destined for the host are dropped.

• Set the aging timer for dynamic MAC address entries to 500 seconds.

Figure 1 Network diagram

Configuration procedure

# Add a static MAC address entry.

<Router> system-view

[Router] mac-address static 000f-e235-dc71 interface GigabitEthernet 4/0/1 vlan 1

# Add a destination blackhole MAC address entry.

[Router] mac-address blackhole 000f-e235-abcd vlan 1

# Set the aging timer for dynamic MAC address entries to 500 seconds.

[Router] mac-address timer aging 500

# Display the MAC address entry for GigabitEthernet 4/0/1.

[Router] display mac-address interface GigabitEthernet 4/0/1

MAC ADDR VLAN ID STATE PORT INDEX AGING STATE