342-86400-498PS
Issue 1.2
April 2012
Page 25
Copyright
GE Multilin Inc. 2010-2012
Distributed Port-Based VLANs
A network of ETHER-1000 units supports up to 60 distributed port-based VLANs
(“D-PVLANs”). Using VistaNET, the user can assign membership in any one
D-PVLAN to each of the 8 ports on the paddleboard. Ports provisioned as
D-PVLAN trunks can have multiple D-PVLAN memberships (explained later).
In the example shown in Figure 4, the LAN segments A, C1, D, E2 and F1 are on
the same D-PVLAN because the respective ETHER-1000 ports are configured
for the same D-PVLAN value (D-PVLAN=1). Similarly, the LAN segments B, C2,
E1 and F2 are on another D-PVLAN (D-PVLAN=2). This ensures that no traffic
from stations in D-PVLAN #1 can reach stations in D-PVLAN #2.
The port-based VLAN feature is implemented without corrupting any ingressing
frames‟ 802.1p or 802.1Q tags, thereby providing the transparent transport of
Ethernet traffic. The D-PVLAN information is encoded in a proprietary secure tag
called
“Envelope Header” attached to each frame at its source ETHER-1000 unit
and removed at the destination one, so the frames leave the ETHER-1000
system unchanged. Optionally, the 802.1Q/p tags can be added or removed at
the destination port if the port is set to do so (see
Output Tagging
below).
D-PVLAN=2
D-PVLAN=2
D-PVLAN=2
D-PVLAN=2
D-PVLAN=1
D-PVLAN=1
D-PVLAN=1
D-PVLAN=1
D-PVLAN=1
LAN Segment C1
LAN Segment D
LAN
Segment
E1
LAN
Segment
B
LAN
Segment
F2
LAN
Segment
A
LAN Segment C2
LAN
Segment
F1
LAN Segment E2
JungleMUX
NODE C
NODE B
NODE E
NODE D
Nx50 Mb/s
Nx50 Mb/s
Nx50 Mb/s
Nx50 Mb/s
J
un
gl
e
M
U
X
E
T
H
ER
-1000
JungleMUX
ETHER-1000
Nx50 Mb/s
Nx50 Mb/s
NODE F
ETHER-1000
SWITCH P/B
1 2 3 4 5 6 7 8
SWI
TC
H
P/B
SWITCH P/B
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
J
un
gl
e
M
U
X
E
T
H
ER
-1000
SWI
TC
H
P/B
1
2
3
4
5
6
7
8
JungleMUX
ETHER-1000
SWITCH P/B
1 2 3 4 5 6 7 8
NODE A
JungleMUX
ETHER-1000
SWITCH P/B
1 2 3 4 5 6 7 8
D-PVLAN=2
D-PVLAN=2
D-PVLAN=2
D-PVLAN=2
D-PVLAN=1
D-PVLAN=1
D-PVLAN=1
D-PVLAN=1
D-PVLAN=1
LAN Segment C1
LAN Segment D
LAN
Segment
E1
LAN
Segment
B
LAN
Segment
F2
LAN
Segment
A
LAN Segment C2
LAN
Segment
F1
LAN Segment E2
JungleMUX
NODE C
NODE B
NODE E
NODE D
Nx50 Mb/s
Nx50 Mb/s
Nx50 Mb/s
Nx50 Mb/s
J
un
gl
e
M
U
X
E
T
H
ER
-1000
JungleMUX
ETHER-1000
Nx50 Mb/s
Nx50 Mb/s
NODE F
ETHER-1000
SWITCH P/B
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
SWI
TC
H
P/B
SWITCH P/B
1 2 3 4 5 6 7 8
SWITCH P/B
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
J
un
gl
e
M
U
X
E
T
H
ER
-1000
SWI
TC
H
P/B
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
JungleMUX
ETHER-1000
SWITCH P/B
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
NODE A
JungleMUX
ETHER-1000
SWITCH P/B
1 2 3 4 5 6 7 8
SWITCH P/B
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Figure 11:
Implementing D-PVLANs in ETHER-1000 system
