snmp format:
cmnHistMacChangedMsg OBJECT-TYPE
SYNTAX OCTET STRING (SIZE(1..254))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains the information of a MAC change
notification event. It consists of several tuples packed
together in the format of '...'.
Each tuple consist of 11 octets in the format of
'' where
is of size 1 octet and supports the following values
0 - End of MIB object.
1 - MAC learnt.
2 - MAC removed.
is VLAN number of the VLAN which the MAC address is
belonged to and has size of 2 octet.
is the Layer2 Mac Address and has size of 6 octets.
is the value of dot1dBasePort for the
interface from which the MAC address is learnt and has size
of 2 octets."
::= { cmnHistoryEntry 2 }