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Application Control
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SonicOS 5.8.1 Administrator Guide
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Actions Using Bandwidth Management 
Application layer bandwidth management (BWM) allows you to create policies that regulate 
bandwidth consumption by specific file types within a protocol, while allowing other file types to 
use unlimited bandwidth. This enables you to distinguish between desirable and undesirable 
traffic within the same protocol. Application layer bandwidth management is supported for all 
Application matches, as well as custom App Rules policies using HTTP client, HTTP Server, 
Custom, and FTP file transfer types. For details about policy types, see the 
.
If the Bandwidth Management Type on the Firewall Settings > BWM page is set to Global, 
application layer bandwidth management functionality is supported with eight predefined, 
default BWM priority levels, available when adding a policy from the Firewall > App Rules page. 
There is also a customizable Bandwidth Management type action, available when adding a new 
action from the Firewall > Action Objects screen.
Bandwidth management can also be configured from the App Flow Monitor page by selecting 
a service type application or a signature type application and then clicking the Create Rule 
button. The Bandwidth Management options available there depend on the enabled priority 
levels in the Global Priority Queue table on the Firewall Settings > BWM page. The priority 
levels enabled by default are High, Medium, and Low.
All application bandwidth management is tied in with global bandwidth management, which is 
configured on the Firewall Settings > BWM page. Two types of bandwidth management are 
available: WAN and Global. When the type is set to WAN, bandwidth management is allowed 
only on interfaces in the WAN zone. With a type of Global, interfaces in all zones can be 
configured with bandwidth management. All App Control screens that offer an option for