(Revised 2011-07-21) Page 155 of 158
Example 6 – Basic understanding of VLANs with Multicast Filtering
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Goes to ports TX1-TX8, but TX1 can only
send to TX2 (VLAN 4)
Goes to ports TX2, TX6-TX8 (VLAN 3) but
filter keeps it on ports TX6 and TX8 only
Goes to ports TX1-TX8, but won‘t go back
out the port it came in on
Goes to ports TX1,TX3-TX8
Goes to ports TX2, TX4-TX8
Goes to ports TX6 and TX8
Note: If there are multiple ports on different VLANs, the N-Tron switch will apply the static multicast
address to the lowest VLAN-ID that is associated with one of the ports assigned to the static multicast
address. If the lowest VLAN-ID contains all the ports assigned to the static multicast address (an umbrella
VLAN), it will function for all those ports with no problems. This can be achieved with overlapping
VLANs.
For further information and examples on overlapping vlans, see:
http://www.n-tron.com/pdf/overlappingportvlan.pdf
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