Load Balancing on the Backbone Network

Hi Dear

if you mean in router : NE40E

please check below :

Usage Scenario
Deploying 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 then can be distributed to different links on the backbone network in a packet-by-packet or session-by-session manner.
Pre-configuration Tasks
Before configuring load balancing among IPv4 VPN routes, complete the following tasks:
Configure a BGP/MPLS IP VPN.
Ensure that the PE receives IPv4 VPN routes with the same prefix from different VPNv4 peers.
Procedure
Run system-view

The system view is displayed.

Run bgp as-number

The BGP view is displayed.

Run ipv4-family vpn-instance vpn-instance-name

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

Run maximum load-balancing number

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

Run commit

The configuration is committed.

The reference : NetEngine40E_V800R011C00SPC300

Regards.