1. SmartAX MA5600 VLAN New Service

2. Foreword
As there are some demands for L2 VPN and VLAN extension, Huawei DSLAM MA5600 provides the QinQ VLAN and VLAN Stacking to implement those service.
Page 2

3. References SmartAX MA5600 Technical Manual
SmartAX MA5600 Operation Manual
Page 3

4. Objectives Upon completion this course, you will be able to:
Describe the QinQ VLAN working principle
Perform the QinQ VLAN application configuration
Describe the Stacking VLAN working principle
Carry out the Stacking VLAN application configuration
Page 4

5. Contents
Chapter 1 QinQ VLAN
Chapter 2 VLAN Stacking
Page 5

6. Contents Chapter 1 QinQ VLAN 1.1 QinQ VLAN Working Principle
1.2 QinQ VLAN Configuration
Page 6

7. Technical Background
More and more enterprises require to communicate with branches in virtual private network to enhance the data security.
The technology of network access for enterprises usually is xDSL technologies.
Under the situation of above, The MA5600 series provides QinQ VLAN solution for enterprise private line interconnection.
Page 7

8. QinQ VLAN Networking and Flow
MAN
L2/L3
L2/L3 E E
CON
CON A
ETH A
ETH
MON
MON D D A A
GE0/7/0
GE0/7/0
QinQ private line A
ESM
MA5600_A
ESM
MA5600_B
QinQ private line B
Modem
Modem
LSW
LSW
VLAN 2
VLAN 3
VLAN 2
VLAN 3
Company A
Company B
Company A
Company B
Page 8

9. QinQ VLAN Working Principle
802.1q in 802.1q (QinQ) VLAN enables transmission of VLANs and services of a private network to the peer end transparently.
In summary, the packet delivered in the backbone network has two layers of IEEE 802.1q tags:
public VLAN tag
private VLAN tag
In this way, transparent delivery of private VLAN is realized and public VLAN resources are greatly saved.
After receiving a packet with private VLAN tag, the MA5600 will assign a public VLAN ID to the packet and send it to the upstream network. The packet is transmitted in the metropolitan backbone network based on its public VLAN ID. When the packet reaches the MA5600 series on the other end of the backbone network, the MA5600 series will extract its public VLAN tag and restore the original user packet. The MA5600 series will then send the packet to the CPE.
Page 9

10. Traffic Tagging L2/L3 SCU Service Board Service Board RTU RTU Page 10
Forwarding according to SP VLAN +DMAC
Forwarding according to the SP VLAN+DMAC
L2/L3
Data with two Tags here
SCU
Finding out the port and PVC ,taking off the SP VLAN
Service Board
Service Board
Adding the SP VLAN according to the PVC
RTU
RTU
C-VLAN
C-VLAN
Page 10

11. Forwarding Procedure Upstream forwarding:
Service port receiving data with one Customer VLAN Tag
Discarding data if it is Untag or with double tag
Service board adding SP VLAN
SCU forwarding data according to the SP VLAN +DMAC/SMAC
Downstream forwarding:
SCU forwarding data according to the SP VLAN+DMAC/SMAC to service board
Service board finding out the relationship between SP VLAN/PVC/Port then taking off the SP VLAN and forwarding to the service port
Thus the data sent to the customer only with Customer VLAN Tag
Page 11

12. Contents Chapter 1 QinQ VLAN 1.1 QinQ VLAN Working Principle
1.2 QinQ VLAN Configuration
Page 12

13. Configuration Flow Chart
Page 13

14. Networking Example Page 14 MA5600_A SCU S A E H MA5600_B L2/L3
Branch A of the
company
Branch B of the
LSW
Modem
MAN
ETH
MON
CON
Page 14

15. Data Plan Item Parameter MA5600_A SHDSL Port: 0/1/1
Upstream port: 0/7/0
VLAN ID: 50
MA5600_B
Page 15

16. Data Configuration
Configuration in MA5600_A (the configuration in MA5600_B is the same):
Create VLAN 50.
MA5600(config)#vlan 50 smart
Set the attribute of VLAN 50.
MA5600(config)#vlan attrib 50 q-in-q
Add the upstream port.
MA5600(config)#port vlan 50 0/7 0
Add the virtual service port the QinQ VLAN.
MA5600(config)#service-port vlan 50 shdsl 0/1/1 vpi 0 vci 35 rx-cttr 7 tx-cttr 7
Page 16

17. Data Configuration Show the VLAN configuration.
MA5600(config)#display vlan 50
VLAN ID: 50
VLAN type: smart
VLAN attribute: QinQ
F / S/ P Native VLAN State Type State F/ S/ P VPI VCI
0 / 7/ up shl up 0/1/
Standard port number: 1
After the above operation, the two branches can communicate with each other.
Page 17

18. Contents
Chapter 1 QinQ VLAN
Chapter 2 VLAN Stacking
Page 18

19. Contents Chapter 2 VLAN Stacking 2.1 VLAN Stacking Working Principle
2.2 VLAN Stacking Configuration
Page 19

20. Technical Background
In the Metropolitan Area Network (MAN), there may exist multiple ISPs, each ISP has own subscribers and needs private line wholesale service from the network carrier.
Subscribers usually are identified with different VLAN-ID, but the VLAN-ID resource is limited.
MA5600 supporting the VLAN Stacking technology to provides private line wholesale service solution to meet the requirement of ISP, and VLAN-ID extension to identification of subscribers.
Page 20

21. VLAN Stacking Working Principle
Internet
ISP2
BRAS
ISP1
FE/GE
MAN
FE/GE
L2/L3
ISP2 wholesale
FE/GE
ISP1 wholesale
L2/L3
Common user with double Tag, BRAS equipment will process them.
FE/GE
FE/GE
IP DSLAM
IP DSLAM
IP DSLAM
Modem
Modem PC PC PC
Enterprise A
Enterprise B
Page 21

22. VLAN Stacking Working Principle
Traffic from users will be tagged with two 802.1q tags by MA5600: inner tag and outer tag.
The outer VLAN tag called SP VLAN, realizes private line wholesale service, different SP VLAN for different ISP.
The inner VLAN tag called customer VLAN, cooperates with the outer VLAN tag to identify subscribers. The inner VLAN-ID resource is multiplexing in different SP VLAN, so the total of VLAN identification is:
4,095 X 4,095 = 16,769,025
The network forward will the data according to the SP VLAN, after reaching the BRAS equipment, taking off the SP VLAN then authenticating customer by the inner Tag.
DMAC
SMAC
Outer-tag
Inner-tag
data
FCS
TYPE
Page 22

23. Traffic Tagging L2/L3 SCU Service Board Service Board RTU RTU Page 23
Forwarding according to SP VLAN+DMAC
Forwarding according to SP VLAN+DMAC
L2/L3
Data with double Tags
SCU
Finding out the port and PVC ,taking off two Tags
Add two Tags according to PVC
Service Board
Service Board
RTU
RTU
Untag Data
UntagData
Page 23

24. Forwarding Procedure Upstream forwarding:
Service port receiving data without Tag, discarding data with any Tags
Adding 2 VLAN Tags according to the PVC.
Internal one is customer VLAN, external one is SP VLAN
SCU forwarding data according to the SP VLAN+DMAC
Downstream forwarding:
SCU receives data with two Tags and forwards to service board according to the SP VLAN+DMAC
Service board finds out the port and PVC and peels two Tags
Sent the data without Tags to the customer
Page 24

25. Contents Chapter 2 VLAN Stacking 2.1 VLAN Stacking Working Principle
2.2 VLAN Stacking Configuration
Page 25

26. Configuration Flow Chart
Page 26

27. Networking Example MAN Page 27 ISP 1 ISP 2 L2 L2 A D D G G E E SCU
CON
CON D
ETH D
ETH
MON
MON G G E E G
E0/7/0 G
E0/7/0
SCU
MA5600_A
SCU
MA5600_B
Modem
Modem
Company A
Company B
Page 27

28. Data Plan Item Data Company A Wholesale user: ISP 1
Connects to: MA5600_A
ADSL2+ port: 0/1/0
Upstream port: 0/7/0
VLAN ID: 60
Company B
Wholesale user: ISP 2
Connects to: MA5600_B
VLAN ID: 61
Page 28

29. Data Configuration
Configuration in MA5600_A, the configuration in MA5600_B is the same:
Create a VLAN.
MA5600(config)#vlan 60 smart
Set the VLAN attribute.
MA5600(config)#vlan attrib 60 stacking
Add the upstream port.
MA5600(config)#port vlan 60 0/7 0
Page 29

30. Data Configuration Add the virtual port. Set the inner label.
MA5600(config)#service-port vlan 60 adsl 0/1/0 vpi 0 vci 35 rx-cttr 0 tx-cttr 0
Set the inner label.
MA5600(config)#stacking label vlan 60 baselabel 10
Activate the port.
MA5600(config-if-adsl-0/1)#activate 1 profile-index 1002
Save the data.
MA5600(config)#save
Page 30

31. Summary
In this chapter, we have learned the QinQ VLAN and VLAN Stacking.
QinQ VLAN is used as the corporation interconnection
Stacking VLAN is used as wholesale service and VLAN extension
Page 31