B&B Electronics 7506GX2-SX - Manual - Manual (Page 147)

(Revised 2010-7-30) Page 147 of 158
The ports of ‖New VLAN‖ may be added back to ―Default VLAN‖ to create overlapping VLANs.
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.
But notice that the ports in ―New VLAN‖ are not marked as ―Untag on Egress‖ and are thus still tagged.