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Configuration Guide - VPN

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of VPN, including GRE, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, and VPLS.
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Configuring Inter-AS IPv6 VPN Option B

Configuring Inter-AS IPv6 VPN Option B

If virtual private network (VPN) routes need to be established over a Multiprotocol Label Switching (MPLS) backbone network spanning multiple autonomous areas (ASs), inter-AS IPv6 VPN is required. If the provider edge (PE) devices connect to many VPNs but the autonomous area border routers (ASBRs) do not have enough interfaces to reserve an interface for each inter-AS VPN, the inter-AS IPv6 VPN Option B solution can be used on the network.

Pre-configuration Tasks

Before configuring inter-AS IPv6 VPN Option B, complete the following tasks:

  • Configure an Interior Gateway Protocol (IGP) for the MPLS backbone network of each AS to ensure IP connectivity on the backbone network within each AS.
  • Configure the basic MPLS functions and MPLS Label Distribution Protocol (LDP) for the MPLS backbone network of each AS.
  • Configure VPN instances on the PE devices connected to CE devices and associate the VPN instances with PE interfaces connected to CE devices in each AS.
  • Configure route exchange between the PE and CE devices in each AS.

For details about the configurations, see Configuring Basic BGP/MPLS IPv6 VPN Functions.

Configuration Procedure

If load balancing needs to be performed between multiple tunnels, you also need to complete the task nottoctopics/en-us_task_0141111579.xml.

Updated: 2019-04-03

Document ID: EDOC1100075353

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