Huawei AR1200 series Configuration Manual page 248

Huawei AR1200 Series Enterprise Routers
Configuration Guide - VPN
Networking Requirements
As shown in
of PE2. When some defects occur on PE2, the flow switches onto PE3.
Figure 3-13 Networking diagram of configuring VPN FRR
Loopback1
1.1.1.1/32
Configuration Roadmap
The configuration roadmap is as follows:
1.
2.
3.
4.
5.
6.
Data Preparation
To complete the configuration, you need the following data:
l
l
Issue 01 (2012-04-20)
Figure 3-13, configure the backup nexthop on PE1 and configure PE3 as the backup
VPN backbone
POS1/0/0
AS100
100.1.1.2/30
POS2/0/0
100.1.1.1/30
PE1
Link_B
POS3/0/0
100.2.1.1/30
POS1/0/0
100.2.1.2/30
Configure OSPF on the MPLS backbone (PE1, PE2 and PE3) to realize the backbone
interconnection.
Configure the basic MPLS function on the MPLS backbone and enable the MPLS LDP to
set up an LSP.
Configure the VPN instances on every PE device (PE1, PE2 and PE3), and connect CE
with PE2 and PE3.
Establish the EBGP peers between PE and CE. Import the VPN routing and establish the
MP-IBGP peers among PEs.
Configure the VPN FRR routing policy on PE1. Configure the backup nexthop. Enable the
VPN FRR.
Configure BFD multi-hop detection on PE1 and PE2.
The number of the AS where the PE devices are located is 100. The number of the AS
where the CE device is located is 65410.
The names of the VPN instances on the PE devices.
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Loopback1
2.2.2.2/32
PE2
GE2/0/0
10.1.1.2/30
GE1/0/0
10.1.1.1/30
Link_A
10.2.1.1/30
GE2/0/0
10.2.1.2/30
PE3
Loopback1
3.3.3.3/32
3 BGP MPLS IP VPN Configuration
vpn1 site
AS65410
CE
GE3/0/0
GE2/0/0
10.3.1.1/24
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