Introduction To Bgp/Mpls Ipv6 Vpn - Huawei quidway s7700 Configuration Manual

Smart routing switch

Hide thumbs Also See for quidway s7700:

Table of Contents

Quidway S7700 Smart Routing Switch

Configuration Guide - VPN

4.1 Introduction to BGP/MPLS IPv6 VPN

This part describes the similarities and differences between BGP/MPLS IPv6 VPN and BGP/

MPLS IP VPN.

As an enhancement of IPv4, IPv6 is an Internet protocol of the next generation. IPv6 provides

the more address spaces and enhanced security functions, and supports more access users and

devices in the Internet than IPv4.

The Virtual Private Network (VPN) is a virtual private communication network built over public

networks such as the Internet. Users located in different areas can exchange data through the

public networks.

The difference between the IPv4 VPN and IPv6 VPN lies in the type of the packets, that is, IPv4

packets or IPv6 packets, sent from the CE to the PE.

At present, IPv6 VPN services are implemented over the IPv4 backbone network of the SP. In

this case, the PE must support the IPv4/IPv6 dual stack operations because the backbone network

is an IPv4 network and the client sites use the IPv6 address family, as shown in

network protocol that can bear IPv6 traffic can run between the CEs and the PEs. PE interfaces

connected to the client run IPv6; PE interfaces connected to the public network run IPv4.

Figure 4-1 Schematic diagram of the IPv6 VPN over the IPv4 public network

Currently, the S7700 supports the following IPv6 VPN networking schemes:

For description about these networking schemes, refer to

Configuration

Issue 01 (2011-07-15)

IPv4 VPN backbone

Intranet VPN

Extranet VPN

Hub and Spoke

Inter-AS VPN (both inter-AS and multi-AS backbones)

in this manual.

Huawei Proprietary and Confidential

4 BGP MPLS IPv6 VPN Configuration

3 BGP MPLS IP VPN