6 PWE3 Configuration
About This Chapter
This chapter describes how to configure PWE3 to transparently transmit data on the MPLS
network.
6.1 Introduction to PWE3
PWE3 refers to a Layer 2 service-bearing technology on a PSN that emulates basic characteristics
of ATM services, FR services, Ethernet services, low-speed TDM services, and SONET/SDH
services.
6.2 PWE3 Features Supported by the S7700
PWE3 can be classified into the static PW and dynamic PW based on implementation schemes,
and can be classified into the single-hop PW and multi-hop PW based on networking types.
6.3 Configuring the Attributes of a PW Template
This section describes how to import a PW template to simplify the configurations of PWs with
similar attributes.
6.4 Configuring a Static PW
This section describes how to configure a static PW. A static PW transmits L2VPN packets
between PEs without using a signaling protocol.
6.5 Configuring a Dynamic PW
This section describes how to configure a dynamic PW. To configure a dynamic PW, extended
LDP needs to be used to transmit Layer 2 information and VC labels.
6.6 Configuring PW Switching
This section describes how to configure a multi-hop switching PW. When the multi-hop
switching PW forwards traffic, PW label switching occurs.
6.7 Configuring a Backup PW
To configure PW FRR in the scenario where CEs are asymmetrically connected PEs, you need
to configure a backup PW. After the master PW fails, traffic can be switched to the backup PW.
6.8 Configuring Static BFD for PW
This section describes how to configure static BFD for PW. After static BFD for PW is
configured, the fault on a PW can be rapidly detected and upper-layer applications can be
immediately switched.
Quidway S7700 Smart Routing Switch
Configuration Guide - VPN 6 PWE3 Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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