HP 3600 v2 Series Command Reference Manual page 79

After enabling MAC address migration log notifying, the MAC address migration log of the last 1 minute
are displayed once every 1 minute.
Up to 10 logs can be saved on each card in 1 minute.
Examples
# Enable MAC address migration log notifying.
<Sysname> system-view
[Sysname] mac-flapping notification enable
[Sysname]
%Sep 21 14:09:22:420 2012 HP MAC/5/MAC_FLAPPING: MAC address 0000-0012-0034 in vlan 500
has flapped from port Ethernet1/0/16 to port Ethernet1/0/1 1 time(s).
The output shows that the MAC address 0000-0012-0034 belongs to VLAN 500, the source interface
from which the MAC address migrates from is GE1/0/16, the current interface with which the MAC
address associates is GE1/0/1, and the MAC address migrates one time in the last one minute.
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