Establishing The Configuration Task - Huawei quidway s7700 Configuration Manual

Quidway S7700 Smart Routing Switch
Configuration Guide - VPN

4.8.1 Establishing the Configuration Task

Before configuring inter-AS IPv6 VPN OptionB, familiarize yourself with the applicable
environment, complete the pre-configuration tasks, and obtain the required data. This can help
you complete the configuration task quickly and accurately.
Applicable Environment
If the MPLS backbone network bearing VPN-IPv6 routes crosses multiple ASs, the inter-AS
VPN is needed. If the ASBR can manage VPN-IPv6 routes, however, there are no enough
interfaces for each inter-AS IPv6 VPN, the inter-AS VPN-Option B is adopted. In this option,
the ASBR is involved in maintaining and advertising VPN-IPv6 routes.
Pre-configuration Tasks
Before configuring inter-AS IPv6 VPN-Option B, complete the following tasks:
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l
Data Preparation
To configure inter-AS IPv6 VPN-Option B, you need the following data.
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Issue 01 (2011-07-15)
Configuring IGP for MPLS backbone networks in each AS to realize IP connectivity of the
backbones in one AS
Configuring basic MPLS capability for the MPLS backbone network
Configuring MPLS LDP to establish LDP LSP for the MPLS backbone network
4.3.2 Creating an IPv6 VPN Instance
and 4.4.3 Binding an Interface to an IPv6 VPN Instance
Configuring the IPv6 addresses of the CE interfaces through which the CE accesses the PE
Data
To configure the IPv6 VPN instance on the PE, 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) he maximum number of routes allowed by the IPv6 VPN instance
IPv6 addresses of the PE interfaces attached to the CE
AS number of the PE
IPv4 addresses of the interfaces connected the ASBRs
Routing protocol adopted between the PE and the CE: static route, RIPng, IS-ISv6
or BGP4+
IPv4 addresses and interfaces setting up the MP-IBGP peer between the PE and the
ASBR
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4 BGP MPLS IPv6 VPN Configuration
on the PE devices connected with the CE devices
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