ZyXEL Communications P-335WT User Manual

P-335 Series User’s Guide

Chapter 16 Bandwidth Management

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This chapter contains information about configuring bandwidth management, editing rules and 
viewing the Prestige’s bandwidth management logs.

ZyXEL’s Bandwidth Management allows you to specify bandwidth management rules based 
on an application and/or subnet. You can allocate specific amounts of bandwidth capacity 
(bandwidth budgets) to different bandwidth rules. 

The Prestige applies bandwidth management to traffic that it forwards out through an 
interface. The Prestige does not control the bandwidth of traffic that comes into an interface.

Bandwidth management applies to all traffic flowing out of the router, regardless of the 
traffic's source.

Traffic redirect or IP alias may cause LAN-to-LAN traffic to pass through the Prestige and be 
managed by bandwidth management. 

• The sum of the bandwidth allotments that apply to the WAN interface (WAN to LAN, 

LAN to WAN, WAN to WAN / Prestige) must be less than or equal to the WAN BW 
Budget that you configure in the Bandwidth Management Configuration screen. 

• The sum of the bandwidth allotments that apply to the LAN port (LAN to WAN, WAN to 

LAN, LAN to LAN / Prestige) must be less than or equal to 100,000 kbps (you cannot 
configure the bandwidth budget for the LAN port). 

• The sum of the bandwidth allotments that apply to the WLAN port (WLAN to WAN, 

WAN to WLAN, WLAN to WLAN / Prestige) must be less than or equal to 54,000 kbps 
(you cannot configure the bandwidth budget for the WLAN port). 

The bandwidth rules in the following example are based solely on application. Each 
bandwidth rule (VoIP, Web, FTP, E-mail and Video) is allotted 128 Kbps.