NetComm NCT480 manual Status of full Bridging Status

Item

Description

Drop if Forwarding Table Full	This specifies if the frame for which learning could not be done because of forwarding
	table limit being reached, is to be dropped. If this is enabled, the frame for which
	learning could not be done because of limit exceeded shall be dropped, else forwarded
	based on bridge forwarding logic. This being enabled shall reduce flooding, as when a
	response to such a frame from which learning could not be done shall come the frame
	shall be flooded, as the entry for that unicast address, shall not be found in forwarding
	table.
Status of full Bridging Status	This specifies the current state of full bridging on the bridge. The bridge can be set to
	residential bridging, restricted full bridging or unrestricted full bridging.
	* Residential bridging, all packets from a CPE side port are sent to Net side port (Uplink
	ports) without doing a lookup in the forwarding table.
	* Restricted bridging, there is a lookup and a packet coming from a CPE port destined
	for another CPE port is dropped. Hence, CPE-CPE switching is not permitted.
	* Unrestricted bridging, all traffic is forwarded based on lookup.
	Table 2-4 Bridge Configuration Dialog Description

NCT480 IP DSLAM User Guide	YML856 Rev3
44	www.netcomm.com.au