Mac Address Table Configuration Example - HP A5120 EI Series Configuration Manual

MAC address table configuration example

Network requirements
The MAC address of one host is 000f-e235-dc71 and belongs to VLAN 1. It is connected to

GigabitEthernet 1/0/1 of the device. To prevent MAC address spoofing, add a static entry into the
MAC address table of the device for the host.
The MAC address of another host is 000f-e235-abcd and belongs to VLAN 1. Because this host

once behaved suspiciously on the network, you can add a destination blackhole MAC address entry
for the MAC address to drop all packets destined for the host.
 Set the aging timer for dynamic MAC address entries to 500 seconds.
Configuration procedure
# Add a static MAC address entry.
<Sysname> system-view
[Sysname] mac-address static 000f-e235-dc71 interface gigabitethernet 1/0/1 vlan 1
# Add a destination blackhole MAC address entry.
[Sysname] mac-address blackhole 000f-e235-abcd vlan 1
# Set the aging timer for dynamic MAC address entries to 500 seconds.
[Sysname] mac-address timer aging 500
# Display the MAC address entry for port GigabitEthernet 1/0/1.
[Sysname] display mac-address interface gigabitethernet 1/0/1
MAC ADDR
000f-e235-dc71
--- 1 mac address(es) found
# Display information about the destination blackhole MAC address table.
[Sysname] display mac-address blackhole
MAC ADDR
000f-e235-abcd
--- 1 mac address(es) found
# View the aging time of dynamic MAC address entries.
[Sysname] display mac-address aging-time
Mac address aging time: 500s
VLAN ID STATE
1 Config static
---
VLAN ID STATE
1 Blackhole
---
PORT INDEX
GigabitEthernet 1/0/1
PORT INDEX
N/A
25
AGING TIME
NOAGED
AGING TIME
NOAGED