Configuration Roadmap
The configuration roadmap is as follows:
1.
Set up MP-IBGP connections between the PEs and RR so that the PEs do not need to set
up an MP-IBGP connection.
2.
Set up EBGP connections between the PEs and CEs.
3.
Set up an MPLS LSP on the public network and enable MPLS LDP on the devices and
interfaces along the LSP.
4.
Configure RR to accept all the VPNv6 routing information without filtering the routing
information based on VPN targets. Then the RR can save all the VPN-IPv6 routes sent
from PE1 and PE2 and advertises the VPN-IPv6 routes to the PEs.
Data Preparation
To complete the configuration, you need the following data:
l
MPLS LSR-IDs of PEs and RR
l
Names, RDs, and VPN targets of the VPN instances created on PE1 and PE2
l
Routing protocol used to exchange routing information between the PEs and CEs (EBGP
in this example)
l
Convergence priorities of the routes in the VPN instances
l
Name of the RD filter and name of the routing policy
Configuration Procedure
1.
Configure an IGP protocol on the MPLS backbone network to implement interworking of
devices along the LSP.
OSPF is used as the IGP protocol in this example. The configuration procedure is not
mentioned here.
NOTE
The address of the loopback interface, which functions as the LSR ID, must be advertised.
After the configuration, devices along the LSP can learn the address of the loopback
interface of each other.
Take the display on PE1 as an example.
<PE1>
display ip routing-table
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.9/32 Direct 0 0 D 127.0.0.1 InLoopBack0
2.2.2.9/32 OSPF 10 1 D 100.1.2.2 Vlanif10
3.3.3.9/32 OSPF 10 3 D 100.1.2.2 Vlanif10
100.1.2.0/24 Direct 0 0 D 100.1.2.1 Vlanif10
100.1.2.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
100.1.1.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
100.2.3.0/24 OSPF 10 2 D 100.1.2.2 Vlanif10
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
2.
Set up an LSP on the MPLS backbone network.
Quidway S7700 Smart Routing Switch
Configuration Guide - VPN
4 BGP MPLS IPv6 VPN Configuration
Issue 01 (2011-07-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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