Pre-configuration Tasks
Before configuring the IPv6 VPN-Option A, complete the following tasks:
l
Configuring IGP for MPLS backbone networks in each AS to realize IP connectivity of the
backbones in one AS
l
Enabling MPLS on the PEs and the ASBRs
l
Setting up the tunnel (LSP or MPLS TE) between the PE and the ASBR in the same AS
l
Enabling IPv6 on PEs, CEs and on the interfaces that need to be configured with IPv6
l
Configuring the IPv6 address of the CE interface through which the CE accesses the PE
Data Preparation
To configure inter-AS IPv6 VPN-Option A, you need the following data.
No.
Data
1
To configure the IPv6 VPN instance on the PE and the ASBR, you need the following
data:
l
Name of the IPv6 VPN instance
l
(Optional) Description of the IPv6 VPN instance
l
RD, VPN Target
l
(Optional) Routing policy that controls the receiving and sending of IPv6 VPN
routes
l
(Optional) Tunnel policy
l
(Optional) The maximum number of routes allowed by the IPv6 VPN instance
2
IPv6 addresses of the PE interfaces attached to the CE
3
AS number of the PE
4
IPv6 addresses of the interfaces connected the ASBRs
5
Routing protocol adopted between the PE and the CE: static route, RIPng, IS-ISv6,
or BGP4+
6
IPv4 addresses and interfaces between the PE and ASBR to establish the MP-IBGP
peers
4.7.2 Configuring Inter-AS IPv6 VPN Option A
This part describes how to configure an IPv6 VPN instance on the PE and ASBR to be
respectively associated with the CE and the peer ASBR.
Context
Inter-AS IPv6 VPN-Option A is easy to deploy. When the amount of the IPv6 VPNs and the
VPN-IPv6 routes on the PE is small, the Option A can be adopted.
The configurations of the inter-AS VPN-Option A are as follows:
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.
352