Allied Telesis AT-S39 - Manual (Page 310)

Section III: Web Browser Management
310
CPU
Indicates whether the traffic received on the port is sent to the
switch’s CPU. Yes indicates that the traffic is being sent to the CPU
while No indicates it is not.
MIR
Indicates whether the traffic on the port is being mirrored. Yes
means the traffic is being mirrored while No indicates that it is not.
EMP
Indicates whether multicast packets are being forwarded by ports
in the blocking state. This feature is not supported at this time.
This column will indicate “No” for all multicast addresses, except
for the switch’s MAC address. Multicast packets are forwarded
only by ports in the forwarding state.
VLAN ID
The VID of the VLAN where the port is an untagged member.
Type
The MAC address type. The type can be either static or dynamic.