ZyXEL p-660h-61 Guida Utente

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Prestige 660H Series User’s Guide  
Bandwidth Management 
       18-7 
18.7.2 Maximize Bandwidth Usage With Bandwidth Borrowing 
If you configure both maximize bandwidth usage (on the interface) and bandwidth borrowing (on 
individual child-classes), the Prestige functions as follows. 
1. 
The Prestige sends traffic according to each bandwidth class’s bandwidth budget. 
2. 
The Prestige assigns a parent class’s unused bandwidth to its child-classes that have more traffic 
than their budgets and have bandwidth borrowing enabled. The Prestige gives priority to 
bandwidth child-classes of higher priority and treats bandwidth classes of the same priority 
equally. 
3. 
The Prestige assigns any remaining unused or unbudgeted bandwidth on the interface to any 
bandwidth class that requires it. The Prestige gives priority to bandwidth classes of higher priority 
and treats bandwidth classes of the same level equally. 
4. 
The Prestige assigns any remaining unbudgeted bandwidth to traffic that does not match any of the 
bandwidth classes. 
18.8 Configuring Summary 
Click BW Manager, Summary to open the Summary screen. 
 
Enable bandwidth management on an interface and set the maximum allowed bandwidth for that 
interface.  
 
Table 18-8 Bandwidth Manager: Summary 
The following table describes the labels in this screen. 
Table 18-9 Bandwidth Manager: Summary 
LABEL DESCRIPTION 
LAN  
WAN 
These read-only labels represent the physical interfaces. Select an interface’s check box to 
enable bandwidth management on that interface. Bandwidth management applies to all traffic 
flowing out of the router through the interface, 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. 
Active 
Select an interface’s check box to enable bandwidth management on that interface.