How should I set the Inbound/Outbound Rate with multiple WAN links? (v6.2 and above)

Products

• PacketShaper

Issue/Introduction

It depends whether you want to control each link separately.

Resolution

If your unit is using LAN Expansion Modules (LEMs) to manage different WAN links and you don’t want to control each LEM separately, the rate should be the size of the smallest LEM. For example, if you have two 100 Mbps LEMs managing two links, you should specify 100M for the rate.

On the other hand, if you want to control each link separately, the rate should be the sum of the link speeds on all devices. For example, if the built-in device is controlling a T1 line (1.5 Mbps) and a LEM is managing two T1 lines (3.0 Mbps), you should specify 4.5M for the rate.

To control traffic across each link separately, you can create a class for each device (for example, Builtin_LEM and Upper_LEM) and assign partitions that match the link size (1.5M for the Builtin_LEM class and 3.0M for the Upper_LEM class).

See Control Branch Traffic from a Main Site in PacketGuide.