HP 5120 EI Series User Manual

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Step Command Remarks
2. Enable MAC address
migration log notifying.
mac-flapping notification
enable
By default, MAC address migration log
notifying is disabled.
The MAC address migration logs of the last one minute are displayed once every one minute.
Displaying and maintaining MAC address tables
Task Command Remarks
Display MAC address table
information.
display mac-address [ mac-address [ vlan vlan-id ] |
[ [ dynamic | static ] [ interface interface-type
interface-number ] | blackhole ] [ vlan vlan-id ]
[ count ] ] [ | { begin | exclude | include }
regular-expression ]
Available in any view
Display the aging timer for
dynamic MAC address
entries.
display mac-address aging-time [ | { begin |
exclude | include } regular-expression ]
Available in any view
Display the system or interface
MAC address learning state.
display mac-address mac-learning [ interface-type
interface-number ] [ | { begin | exclude | include }
regular-expression ]
Available in any view
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 8:
• The MAC address of Host A 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 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 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.

HP 5120 EI Series Specifications

General

Brand	HP
Model	5120 EI Series
Category	Switch
Language	English