No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

Configuration Guide - VPN

S9300, S9300E, and S9300X V200R010C00

This document describes the VPN configuration procedures and provides configuration examples.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Configuring Inter-AS VPN Option B

Configuring Inter-AS VPN Option B

Pre-configuration Tasks

If the MPLS VPN backbone network spans multiple ASs, inter-AS VPN is required. When the ASBRs do not have enough interfaces for all the inter-AS VPNs, inter-AS VPN Option B can be used.

Before configuring inter-AS 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.
  • In 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.
  • Configure route exchange between the PE and CE devices in each AS.

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

Configuration Process

Controlling the Receiving and Sending of VPN Routes by Using Routing Policies and (Optional) Enabling Next-Hop-based Label Allocation on the ASBR are optional, and other tasks are mandatory. Perform these tasks in this sequence to complete inter-AS VPN Option B configuration.

When multiple tunnels need to perform load balancing to fully use network resources, you also need to complete the task of Configuring and Applying a Tunnel Policy.

NOTE:

In inter-AS VPN Option B, the ASBRs maintain and advertise VPNv4 routes of inter-AS VPNs, and they can also work as PE devices. When the ASBRs work as PE devices, configure VPN instances on the ASBRs to enable them to exchange routing information with CE devices. The configuration is the same as that on common PE devices.

The inter-AS VPN Option B scenario does not support TE tunnels.

Translation
Download
Updated: 2019-08-21

Document ID: EDOC1000142068

Views: 118949

Downloads: 212

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next