N-Tron 9000 - Manual (Page 47)

(Revised 2011-07-20) page 47 of 145
Bridging – Multicast Addresses
The Multicast Addresses tab under the Bridging category will display a list of Multicast Group
Addresses that are associated with respective port numbers. This may be used to statically assign a
Multicast Group Address access to a group of ports on the switch. These are egress filters.
Following the Add button on the page above, the administrator must enter a valid Multicast Group
Address and associate it with a port number or list on the switch. Once the administrator clicks on the
Update button, the changes will take effect instantly.
Note: If there are multiple ports on different VLANs, the 9000 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.
So 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.