ZyXEL Communications 4.04 User Manual

Chapter 17 Load Balancing Commands

ZyWALL (ZyNOS) CLI Reference Guide

This example sets Least Load First load balancing to distribute 100 Kbps of upstream traffic to 
WAN1 for every 200 Kbps of upstream traffic that goes through WAN2. The bandwidth 
measurement is averaged over 30 seconds. Then it changes the load balancing method to Least 
Load First. 

This example configures Weighted Round Robin load balancing to give a weight of 10 to 
WAN1 and a weight of 5 to WAN2. Then it changes the load balancing method to Weighted 
Round Robin. 

This example configures spillover load balancing to send traffic to the secondary WAN when 
the primary WAN bandwidth exceeds 100 Kbps. Then it changes the load balancing method to 
spillover. 

ras> ls band up 100 200

ras> ls mode 1

ras> ls disp

Load Sharing Active: Yes

Load Sharing dispatch outgoing traffic by Least Load First

Method: Upstream

Upload traffic WAN1: 100, WAN2: 200

Download traffic WAN1: 0, WAN2: 0

ras> ls timeframe 30

ras> ls wrr 10 5

ras> ls mode 2

ras> ls disp

Load Sharing Active: Yes

Load Sharing dispatch outgoing traffic by Weighted Round Robin

WAN1 weight: 10, WAN2 weight: 5

ras> ls spillover 100

ras> ls mode 3

ras> ls disp

Load Sharing Active: Yes

Load Sharing dispatch outgoing traffic by Spillover

Send traffic to secondary WAN when primary WAN bandwidth exceeds 100 Kbps.