The maximum number of MAC addresses to
be secured in the VLAN indicated by
cpsIfVlanIndex on this interface.
If cpsIfVlanMaxSecureMacAddr is not set,
its value is 1.
If cpsIfVlanMaxSecureMacAddr is not set, then
the cpsIfMaxSecureMacAddr applies to this
VLAN.
If cpsIfVlanMaxSecureMacAddr is set
and is less than cpsIfMaxSecureMacAddr, then
the cpsIfVlanMaxSecureMacAddr applies to this
VLAN.
If cpsIfVlanMaxSecureMacAddr is set
and is greater than cpsIfMaxSecureMacAddr, then
the cpsIfMaxSecureMacAddr applies to this
VLAN.