Distributed Port-Based Vlans; Figure 11: Implementing D-Pvlans In Ether-1000 System - GE JungleMUX SONET Technical Practice

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.
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).
LAN Segment C1 LAN Segment C1
D-PVLAN=1 D-PVLAN=1
Nx50 Mb/s Nx50 Mb/s
D-PVLAN=2 D-PVLAN=2
NODE B NODE B
LAN LAN
Segment Segment
B B
Nx50 Mb/s Nx50 Mb/s
D-PVLAN=1 D-PVLAN=1
LAN LAN
Segment Segment
A A

Figure 11: Implementing D-PVLANs in ETHER-1000 system

Copyright  GE Multilin Inc. 2010-2012
LAN Segment C2 LAN Segment C2
D-PVLAN=2 D-PVLAN=2
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
SWITCH P/B SWITCH P/B
Nx50 Mb/s Nx50 Mb/s
ETHER-1000 ETHER-1000
JungleMUX JungleMUX
NODE C NODE C
NODE A NODE A
JungleMUX JungleMUX
ETHER-1000 ETHER-1000
Nx50 Mb/s Nx50 Mb/s
SWITCH P/B SWITCH P/B 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
D-PVLAN=1 D-PVLAN=1
LAN LAN
Segment Segment
F1 F1
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Issue 1.2
April 2012
Page 25
Ports provisioned as
LAN Segment D LAN Segment D
D-PVLAN=1 D-PVLAN=1
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
SWITCH P/B SWITCH P/B
ETHER-1000 ETHER-1000
JungleMUX JungleMUX
Nx50 Mb/s Nx50 Mb/s
NODE D NODE D
NODE E NODE E
NODE F NODE F
JungleMUX JungleMUX
Nx50 Mb/s Nx50 Mb/s
ETHER-1000 ETHER-1000
SWITCH P/B SWITCH P/B 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
D-PVLAN=2 D-PVLAN=2
LAN LAN
Segment Segment
E1 E1
D-PVLAN=2 D-PVLAN=2
D-PVLAN=1 D-PVLAN=1
LAN Segment E2 LAN Segment E2
LAN LAN
Segment Segment
F2 F2