User`s guide

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Queues and Rate Limits
The following diagram shows how the eight bandwidth policies are divided into queues:
The Priority Queues always take precedence.
The Regular Queues can use unlimited bandwidth.
The Rate Limiting Queues are collectively limited to 5% of the maximum link bandwidth.
The rate limits always apply, so even if there is no other traffic, the traffic in the Rate Limiting Queues never uses more than 5% of the bandwidth.
The classes within the Regular and Rate Limiting queues are weighted relative to the other classes in the same
queue. Class weights are enforced only when the link is saturated.
Customize the Class Weights and Rate Limits
On the page, you can set the weight ratios for the classes within the same queue and modify some of the rate limits.FIREWALL > QoS
Assign a Bandwidth Policy to a Firewall Rule
Before you begin, verify that you specified a bandwidth for each interface on which you want to enable QoS:
Go to the page. NETWORK > IP Configuration
In the section, select the interface and click the / link in the column.Network Interface Configuration No Yes Use QoS
Enter the bandwidth assigned by your ISP for outbound and inbound connections.
To assign a bandwidth policy to a firewall rule:
Go to and edit the rule.FIREWALL > Firewall Rules
Click the tab.Applications/Bandwidth
From the list, select the bandwidth policy.Bandwidth Policy
Monitor Bandwidth Policy Assignment
To monitor which bandwidth policy is assigned to active network sessions, go to the page. The assigned policy ofBASIC > Active Connections
a network session is displayed in the column. You can also manually override the assigned bandwidth policy by using theBandwidth Policy
drop-down menu in the column. Bandwidth Policy
How to Configure the Captive Portal
With the captive portal, you can control access to the Internet or other networks. Unauthenticated users from specific network segments or
network interfaces must log in before they are granted access. Users who have already been authenticated or have been identified by the
Barracuda DC Agent are not prompted to log in.
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