ZyXEL Communications ZyWall 35 Support Notes page 54

ZyWALL 35 Support Notes
bandwidth you want to allocate to the filtered traffic. There are two types of BWM in ZyXEL
implementations, Full and Lite versions.
Full version: Supported in SMB level devices, such as ZyWALL100, ZyWALL 70...etc. Users can define
how they want to classify traffic on each interface. In this version, child-class can borrow bandwidth from
parent-class if necessary by Bandwidth Borrowing. For classes that need more bandwidth even after
bandwidth borrowing, users can also apply Maximize Bandwidth Usage from the interface.
Using BWM
Go to ADVANCED->BW MGMT->Summary, activate bandwidth management on the interface you
would like to manage. We enable the BWM function on WAN1 interface in this example.
Enter the total speed for this interface that you want to allocate using bandwidth management. This
appears as the bandwidth budget of the interface's root class.
Select how you want the bandwidth to be allocated. Priority-Based means bandwidth is allocated via
priority, so the traffic with highest priority would be served first, then the second priority is served
secondly and so on. If Fairness-Based is chosen, then the bandwidth is allocated by ratio. Which means if
A class needs 300 kbps, B class needs 600 kbps, then the ratio of A and B's actual bandwidth is 1:2. So if
we get 450 kbps in total, then A would get 150 kbps, B would get 300 kbps.
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