D-Link NetDefend SOHO DFL-160 User Manual page 73

4.9. Traffic Shaping
• Guarantee - Specify the guaranteed bandwidth only.
• Max and Guarantee - Specify both the maximum and guaranteed bandwidth.
The entry fields for the bandwidth are enabled in the interface according to the option chosen. The
term Upstream means traffic leaving the WAN interface going towards the public Internet. The term
Downstream is the opposite, which is traffic arriving from the public Internet.
Guarantee Priorities
If guarantees are specified then a Priority is also specified and this can take a value from 1 up to 4
(1=low, 2=normal, 3= high, 4=critical). These priorities apply when the guarantee cannot be met
because of competing guarantees. The guarantee with the highest priority is met first and remaining
bandwidth is used to meet guarantees with lower priorities.
Specifying Networks
If required, the traffic shaping rule can apply to a specific local network (on LAN or DMZ) and/or a
specific remote network on the Internet.
If specified, the source and/or destination networks provide an alternate condition for the traffic
shaping rule to trigger. The IP addresses specified can either be in one of the following forms:
• A network. For example, 192.168.10.0/24.
• An individual IP address. For example, 192.168.10.10.
• A network range. For example, 192.168.10.10-192.168.10.20.
Rules Summary
After adding a number of rules, a summary can be displayed of the defined rules and is shown as a
table under the Rules tab.
Tip: Sharing the Total Bandwidth
Keep in mind when specifying a rule maximum that it should be less than the total
capacity we have specified for WAN otherwise there is no reason to specify a
maximum.
Similarly, a guarantee should be just a portion of the entire WAN bandwidth since the
aim is to guarantee a minimum level of service for a particular type of traffic.
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Chapter 4. The Firewall Menu