D-Link DAS-3224_revB User Manual

If multicast is not supported, this setting can specify whether the multicast 
packets are to be dropped, or to be forwarded.   

Multicast Drop 

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. 

Drop if Forwarding Table Full 

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 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. 

 
 
 

 
The DHCP Relay configuration provides DHCP Relay Option 82 function. 
 
DHCP allows individual computers on an IP network to extract their configurations from DHCP server. 
The overall purpose of this is to reduce the work necessary to administer a large IP network. The most 
significant piece of information distributed in this manner is the IP address. Information can be added 
into client TCP/IP configuration requests that IP-DSLAM relays to a DHCP server. This helps provide 
authentication about the source of the request. Please refer to RFC 3046 for further details. 
 

AMS 
Software Specification and Introduction Guide