How To Configure A Trunk For Wan Load Balancing - ZyXEL Communications ZyWALL USG Series Application Notes

USG's IDP packet inspection signatures to classify services.

4.2 How to Configure a Trunk for WAN Load Balancing

These examples show how to configure a trunk for two WAN connections to the Internet. The
available bandwidth for the connections is 1 Mbps (wan1) and 512 Kbps (wan2 or cellular1)
respectively. As these connections have different bandwidth, use the Weighted Round Robin
algorithm to send traffic to wan1 and wan2 (or cellular1) in a 2:1 ratio.
Figure 41
Figure 42
You do not have to change many of the USG's settings from the defaults to set up this trunk. You
only have to set up the outgoing bandwidth on each of the WAN interfaces and configure the
WAN_TRUNK trunk's load balancing settings.
4.2.1 Set Up Available Bandwidth on Ethernet Interfaces
Here is how to set a limit on how much traffic the USG tries to send out through each WAN
interface.
Click Configuration > Network > Interface > Ethernet and double-click the wan1 entry. Enter
1
the available bandwidth (1000 kbps) in the Egress Bandwidth field. Click OK.
T runk Example For Dual WANs
T runk Example For WAN and 3G Interface
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