ZyXEL Communications 2WG - Manual (Page 37)

ZyWALL 2WG Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
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Go to ADVANCED->BW MGMT->Summary, activate bandwidth management on the interface you
would like to manage. We enable the BWM function on WAN 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.
Key Settings:
Active
Check the box to enable BWM on the interface. Note that if you would like to manage
traffic from WAN to LAN, you should apply BWM on LAN interface.
Speed
Enter the total speed to manage on this interface. This value is the budget of the class
tree's root.
Scheduler
Choose the principle to allocate bandwidth on this interface. Priority-Based allocates
bandwidth via priority. Fairness-Based allocates bandwidth by ratio.
Maximize
Bandwidth
Usage
Check this box if you would like to give residuary bandwidth from Interface to the
classes who need more bandwidth than configured amount. Do not select this if you
want to reserve bandwidth for traffic that does not match a bandwidth class or you want
to limit the bandwidth of each class at the configured value. (Please note that to meat the
second condition, you should also disable bandwidth borrowing on the class.)
Go to ADVANCED->BW MGMT->Class Setup, select the interface on which you would like to setup
the Class tree.
Click the radio button besides the Root Class, then press 'Add Sub-Class'