Example 5 - Basic Understanding Of Overlapping Vlans; Example 6 - Basic Understanding Of Vlans With Multicast Filtering - N-Tron 9000 series User Manual & Installation Manual

Example 5 – Basic understanding of Overlapping VLANs
VLAN ID VLAN Name
1 Default VLAN
2 VLAN -2
3 VLAN -3
4 VLAN -4
Receiving Tagged VID
Port # in packet
Port A1 Untagged
Port A1 Untagged
Port A1 VID 4
Port A1 VID 4
Port A2 Untagged
Port A2 Untagged
Port A2 VID 2 or 3
Port A2 Untagged
Port A3 Untagged
Port A3 Untagged
Port A3 Untagged
Port A3 VID 2 or 3
Example 6 – Basic understanding of VLANs with Multicast Filtering
VLAN ID VLAN Name
1 Default VLAN
2 VLAN -2
3 VLAN -3
4 VLAN -4
Receiving Tagged VID
Port # in packet
Port 1 Untagged
Port 1 Untagged
Port 2 Untagged
Port 2 Untagged
Port 3 Untagged
Port 3 Untagged
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. 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.
(Revised 2011-07-20)
VLAN Configuration View
VLAN Status : Enable
Untagged Port(s)
--
A1-A6,B1-B6,C1-C6,D1-D6
A2-A6,B1-B6,C1-C6,D1-D6
A1-A2
Destination
Address
MAC on port A2
MAC on port A3
MAC on port A2
Unknown MAC
MAC on port A1
MAC on port A5
MAC on port A5
Unknown MAC
MAC on port A1
MAC on port A2
MAC on port A5
MAC on port A2
VLAN Configuration View
VLAN Status : Enable
Untagged Port(s)
--
A1-A6,B1-B6,C1-C6,D1-D6
A2-A6,B1-B6,C1-C6,D1-D6
A1-A2
Display Static Multicast Group Address(es)
Multicast Address Port List
01:00:00:00:00:01
01:00:00:00:00:02
Destination
Address
01:00:00:00:00:01
01:00:00:00:00:02
01:00:00:00:00:01
01:00:00:00:00:02
01:00:00:00:00:01
01:00:00:00:00:02
Tagged Port(s) Mgmt Port Admit Mirror Port
-- YES All
-- YES All
-- YES All
-- YES All
Transmitting Notes
Port #s
Port A2 Unicast Traffic
-- Packet Discarded
Port A2 Strips VID off packet
Port A2 Strips VID off packet & Floods VLAN
4
Port A1 Unicast Traffic
Port A5 Unicast Traffic
Port A5 Strips VID off packet
Port A1,B1-D6 Floods VLAN 2
-- Packet Discarded
Port A2 Unicast Traffic
Port A5 Unicast Traffic
Port A2 Strips VID off packet
Tagged Port(s) Mgmt Port Admit Mirror Port
-- YES All
-- YES All
-- YES All
-- YES All
1-24
1,6,8
Transmitting Notes
Port #s
Goes to Ports 1-24, but port 1 can only
Port 2
send to Port 2 (VLAN 4)
-- Packet Discarded
Goes to Ports 1-24, but won‟t go back out
Port 1,3-24
the port it came in on
Port 1,6,8 Goes to ports 1,6,8
Goes to Ports 1-24, but can‟t talk to Port 1
Port 2,4-24
since it is on a different VLAN
Goes to Port 1,6,8, but can‟t talk to Port 1
Port 6,8
since it is on a different VLAN
Ports Configuration View
Port Port
PVID
No Name
0
1 A1 4
0
2 A2 2
0
3 A3 3
0
... ...
...
23 D5 3
24 D6 3
Ports Configuration View
Port Port
PVID
No Name
0
1 A1 4
0
2 A2 2
0
3 A3 3
0
... ...
...
23 D5 3
24 D6 3
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