SonicWALL 5.8.1 Manuale Utente

Chapter 47: 

This chapter describes how to plan, design, implement, and SonicPoint FairNet policies in 
SonicWALL SonicOS Enhanced to configure bandwidth limits for WLAN clients. This chapter 
contains the following sections:

IEEE 802.11 wireless LAN is a half-duplex broadcast system, in which all wireless clients 
compete for the shared bandwidth. Ideally, wireless networks should provide fairness in 
bandwidth distribution to create a better user experience and maintain productivity and 
flexibility for all wireless traffic.

With 802.11n technology, wireless LAN throughput can reach up to 300 Mbps to meet the high 
demand of performance and diversified timing sensitive services. However in 802.11n wireless 
LAN networks wireless users still confront bandwidth issues when multiple users are 
coexisting. For example since all bandwidth is shared by all associated wireless clients, some 
“bandwidth hog” (such as a VoIP or P2P user) may use most of the bandwidth and cause delays 
or network interruptions for low-bandwidth, HTTP users.

Given this fact, SonicPoint FairNet feature is designed to provide an easy-to-use method for 
network administrators to control the bandwidth of associated wireless clients and make sure 
the fairness among everyone of them. 

Administrator can configure SonicPoint FairNet bandwidth limits for all wireless users, for 
specific IP address ranges, or for individual clients to provide fairness as well as network 
efficiency.