l The PW encapsulation mode is adopted so that data can be transparently transmitted in the
MPLS network.
Prerequisite
l The xDSL board (or AIUG board) and the SPUB board must be in position and must work
in the normal state.
l The static routing protocol or the OSPF protocol must be successfully configured on each
device in the network (the host route of each port must be successfully advertised).
Context
The implementation process of the ATM PWE3 (MPLS-based) is as follows:
1. The xDSL modem or ATM DSLAM transmits the ATM service to the xDSL or AIUG
board of the MA5600T/MA5603T/MA5608T.
2. The control board sends ATM packets to the SPUB board.
3. After performing the PW and MPLS encapsulation for the packets, the SPUB board
performs the MPLS packet header encapsulation and then sends them to the control board.
4. The control board performs the Layer 2 forwarding and sends the packets to the upstream
port.
5. The packets are sent over the MPLS network to the peer PWE3 gateway (such as the PTN).
6. The PWE3 gateway restores the ATM cells and sends them to the peer ATM device.
Networking
Figure 4-4 shows an example network of the ATM PWE3 (MPLS-based).
Figure 4-4 Example network of the ATM PWE3 (MPLS-based)
Data Plan
Table 4-5 lists the data plan for configuring the ATM PWE3 (MPLS-based).
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
4 Configuration Example of the Private Line Service
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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