Displaying And Maintaining Mac Address Tables; Mac Address Table Configuration Example; Network Requirements - HP 5120 EI Series Lan Switching Configuration Manual

Step
2. Enable MAC address
migration log notifying.
The MAC address migration logs of the last one minute are displayed once every one minute.

Displaying and maintaining MAC address tables

Task
Display MAC address table
information.
Display the aging timer for
dynamic MAC address
entries.
Display the system or interface
MAC address learning state.
Display MAC address
statistics.

MAC address table configuration example

Network requirements

As shown in
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.
•
Command
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 ]
display mac-address aging-time [ | { begin |
exclude | include } regular-expression ]
display mac-address mac-learning [ interface-type
interface-number ] [ | { begin | exclude | include }
regular-expression ]
display mac-address statistics [ | { begin | exclude |
include } regular-expression ]
Figure 8:
Command
mac-flapping notification
enable
29
Remarks
By default, MAC address migration log
notifying is disabled.
Remarks
Available in any view
Available in any view
Available in any view
Available in any view