N-Tron 7014FX2, 7014FXE2, 7014TX Example 6 Basic understanding of VLANs with Multicast Filtering

6/28/2007 page 142 of 145
Example 6 – Basic understanding of VLANs with Multicast Filtering
VLAN Configuration View Ports Configuration View
VLAN Status : Enable
VLAN ID VLAN Name Untagged Port(s) Tagged Port(s) Mgmt Port Admit Mirror Port
1
Default VLAN
-- -- YES All 0
2 VLAN -2 P1-P12 -- YES All 0
3 VLAN -3 P2-P12 -- YES All 0
4 VLAN -4 P1-P2 -- YES All 0
Display Static Multicast Group Address(es)
Multicast Address
Port List
01:00:00:00:00:01 P1-P12
01:00:00:00:00:02 P1,P6,P8
Receiving
Port # Tagge d VID in packet Destination Address Transmitting Port #s Notes
Port P1 Untagged 01:00:00:00:00:01 Port P2 Goes to Ports P1-P12, but port P1 can only
send to Port P2 (VLAN 4)
Port P3 Untagged 01:00:00:00:00:02 Port P7 Packet Discarded
Port P2 Untagged 01:00:00:00:00:01 Port P1,P3-P12 Goes to Ports P1-P12, but won’t go back out
the port it came in on
Port P2 Untagged 01:00:00:00:00:02 Port P1,P6,P8 Goes to ports P1,P6,P8
Port P3 Untagged 01:00:00:00:00:01 Port P2 Goes to Port P3.
Port P6 Untagged 01:00:00:00:00:02 Port P8 Goes to Port P6.
Port P3 Untagged 01:00:00:00:00:02 Port P9 Packet Discarded
Note: If there are multiple ports on different VLANs, the 7014 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
Port
No
Port
Name
PVID
1 P1 4
2 P2 2
3 P3 3
... … …
11 P11 3
12 P12 3