Справочник Пользователя для SonicWALL 5.8.1

Chapter 51: 

Bandwidth management (BWM) is a means of allocating bandwidth resources to critical 
applications on a network.

SonicOS Enhanced offers an integrated traffic shaping mechanism through its outbound 
(Egress) and inbound (Ingress) BWM interfaces. BWM can be applied to traffic to and from an 
interface with Ingress and Egress BWM enabled.

This chapter contains the following sections:

Although BWM is a fully integrated Quality of Service (QoS) system, wherein classification 
and shaping is performed on the single SonicWALL appliance, effectively eliminating the 
dependency on external systems and thus obviating the need for marking, it is possible to 
concurrently configure BWM and QoS (layer 2 and/or layer 3 marking) settings on a single 
Access Rule. This allows those external systems to benefit from the classification performed 
on the SonicWALL even after it has already shaped the traffic. Refer to 

 for BWM QoS details.