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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 Load Balancing Among IPv4 VPN Routes on the Backbone Network

Configuring Load Balancing Among IPv4 VPN Routes on the Backbone Network

Usage Scenario

Load balancing among IPv4 VPN routes allows even distribution of VPN traffic to different links on the backbone network, improving the link usage.

A PE may receive multiple IPv4 VPN routes with the same prefix from different VPNv4 peers. Usually, the PE selects an optimal route and delivers it to the forwarding information base (FIB) to guide data forwarding. If load balancing is configured on the PE, it delivers multiple routes to the FIB. VPN data can then be distributed to different links on the backbone network in per-packet or per—flow manner.

Pre-configuration Tasks

Before configuring load balancing among IPv4 VPN routes, complete the following tasks:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run bgp { as-number-plain | as-number-dot }

    The BGP view is displayed.

  3. Run ipv4-family vpn-instance vpn-instance-name

    The BGP-VPN instance IPv4 address family view is displayed.

  4. Run maximum load-balancing number

    Load balancing among BGP routes is configured for the BGP-VPN instance IPv4 address family.

  5. Run commit

    The configuration is committed.

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Updated: 2019-04-03

Document ID: EDOC1100075353

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