ADM6926 查看數據表（PDF） - Unspecified
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ADM6926 Datasheet PDF : 85 Pages
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ADM6926
Function Description
3.1.4 Address Recognition and Packet Forwarding
The ADM6926 forwards the incoming packets between bridge ports according to the DA
and VID as follows:
DA+VID was found in the DA+VID was found in the DA+VID was not found in the
DA
address table (entry not pointed address table (entry pointed to the address table
to the output port map table) output port map table)
No Security Violation
Unicast Address
Forward packets to the port
determined by the address table.
The packet may be dropped
because of forwarding group
boundary violation.
Forward packets to the ports
determined by the output port
map table constrained by the
forwarding group.
Forward packets to
ports within the same
group.
the other
forwarding
Security Violation
Drop or forward to CPU
Drop or forward to CPU
Drop or forward to CPU
No Security Violation
Broadcast Address
(All 1’b1)
Forwarding packets to the
ports within the
forwarding group.
other
same
Forward packets to the ports
determined by the output port
map table constrained by the
forwarding group.
Forward packets to
ports within the same
group.
the other
forwarding
Security Violation
Drop or forward to CPU
Drop or forward to CPU
Drop or forward to CPU
No Security Violation
Reserved Address
(01-80-c2-00-00-xx,
with the option to
Forwarding packets to the
ports within the
forwarding group.
other
same
Forward packets to the ports
determined by the output port
map table constrained by the
forwarding group.
Forward packets to
ports within the same
group.
the other
forwarding
forward normally)
Security Violation
Same as the above
Same as the above
Same as the above
No Security Violation
Reserved Address Forward the packet to the CPU Forward the packet to the CPU Forward the packet to the CPU
(01-80-c2-00-00-xx, port.
port.
port.
with the option to
forward to CPU)
Security Violation
Same as the above
Same as the above
Same as the above
Reserved Address
(01-80-c2-00-00-xx, Discard the packet.
with the option to
discard)
Same as the above
No Security Violation
Discard the packet.
Security Violation
Same as the above
Discard the packet.
Same as the above
No Security Violation
Forward the packet to the CPU Forward the packet to the CPU Forward the packet to the CPU
IGMP Packet port.
port.
port.
(Port Enable IGMP)
Security Violation
Drop or forward to CPU
Drop or forward to CPU
Drop or forward to CPU
ADMtek Inc.
3-3
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