Chapter 7 General Tutorials
ISG50 User’s Guide
111
To fine-tune the load balancing configuration, see Chapter 13 on page 281. See also Section 7.3 on
page 111 for an example.
7.3 How to Configure Load Balancing
This example shows how to configure a trunk for two WAN connections (to the Internet). The
available bandwidth for the connections is 1Mbps (wan1) and 512 Kbps (wan2) respectively. As
these connections have different bandwidth, use the Weighted Round Robin algorithm to send
traffic to wan1 and wan2 in a 2:1 ratio.
Figure 78 Trunk Example
You do not have to change many of the ISG50’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.
7.3.1 Set Up Available Bandwidth on Ethernet Interfaces
Here is how to set a limit on how much traffic the ISG50 tries to send out through each WAN
interface.
1 Click Configuration > Network > Interface > Ethernet and double-click the wan1 entry. Enter
the available bandwidth (1000 kbps) in the Egress Bandwidth field. Click OK.
wan1: 1 Mbps
wan2: 512 Kbps
ISG