GigabitEthernet3/0/2 VLANIF 101 34.1.1./24
P GigabitEthernet1/0/1 VLANIF 10 12.1.1.2/24
GigabitEthernet2/0/1 VLANIF 20 23.1.1.1/24
CE1 GigabitEthernet3/0/1 VLANIF 100 14.1.1.2/24
CE2 GigabitEthernet3/0/1 VLANIF 100 34.1.1.2/24
CE3 GigabitEthernet3/0/1 VLANIF 101 14.1.1.2/24
CE4 GigabitEthernet3/0/1 VLANIF 101 34.1.1.2/24
Configuration Roadmap
The configuration roadmap is as follows:
1. Configure VPN instances on the PEs on the backbone network. Bind the interfaces
connected to CEs to the corresponding VPN instances so that CE1 and CE2 belong to a
VPN instance, and CE3 and CE4 belong to another VPN instance. Then assign IP addresses
to the PE interfaces connected to CEs.
2. Configure OSPF on the PEs to implement interconnection between PEs.
3. Enable MPLS and MPLS LDP on the PEs and P and set up an MPLS LSP.
4. Configure MP-IBGP between the PEs to exchange VPN routing information.
5. Configure static routes between the CEs and PEs.
Data Preparation
To complete the configuration, you need the following data:
l IDs of the VLANs that the interfaces belong to, as shown in Figure 3-4
l IP address of each VLANIF interface, as shown in Figure 3-4
l MPLS LSR-IDs of PEs and P
l RDs of vpna and vpnb
l VPN targets of vpna and vpnb
Procedure
Step 1 Configure VLANs that the interfaces belong to and assign IP addresses to the VLANIF interfaces
and loopback interfaces according to Figure 3-4.
The configuration procedure is not mentioned.
Step 2 Configure an IGP protocol on the MPLS backbone network so that PE and P routers can
communicate with each other.
# Configure PE1.
[PE1] ospf
[PE1-ospf-1] area 0
[PE1-ospf-1-area-0.0.0.0] network 1.1.1.9 0.0.0.0
[PE1-ospf-1-area-0.0.0.0] network 12.1.1.0 0.0.0.255
[PE1-ospf-1-area-0.0.0.0] quit
[PE1-ospf-1] quit
3 BGP/MPLS IP VPN Configuration
Quidway S9300 Terabit Routing Switch
Configuration Guide - VPN
3-70 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 03 (2009-08-20)
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