Managing the Radio | 295
Aprisa SRi User Manual 1.1.0
Ethernet MAC Learning Table
This page displays the current Ethernet Media Access Control (MAC) Address table on the radio LAN network.
In order for the radio to switch frames between Ethernet LAN ports efficiently, the radio layer 2 bridge
maintains a MAC address table. When the radio bridge receives a frame, it associates the MAC address of
the sending network device with the LAN port on which it was received.
The bridge dynamically learns and builds the MAC address table by using the MAC source address of the
frames received. When the radio bridge receives a frame for a MAC destination address not listed in its
address table, it floods the frame to all LAN ports of the same LAN (or in case of VLAN, to the specific VLAN)
except the port that received the frame. When the destination bridge device replies, the radio bridge adds
its relevant MAC source address and interface port number to the MAC address table. The switch then
forwards subsequent frames to a single LAN port without flooding all LAN ports.
ADDRESS TABLES
Title
Function
MAC Address
The learned MAC address of a neighboring bridge device in the LAN network.
Interface
The Ethernet port interface the MAC address has learned
Age left
The aging time of this MAC entry will stay in the table, even if this MAC
address is not used. Every time this MAC address is used, the aging time
restarts from its maximum. Default is 300 sec.
Controls
The Next button will display the next page of 8 addresses and the Prev button will display the previous page
of 8 addresses.
If the Auto Refresh option is ticked, the routing table will refresh every 12 seconds.