Friday, May 8, 2009

QOS Registry on Windows

By default Windows ONLY Allocate 20 Percent towards QOS

Manage the Reserved QoS Bandwidth (Windows 2000/XP) Popular
This setting determines the percentage of connection bandwidth that the system can reserve for QoS traffic. By default, the Packet Scheduler limits the system to 20 percent of the bandwidth of a connection.

Open your registry and find or create the key (Psched) below.

Create a new DWORD value called "NonBestEffortLimit" and set it to the percentage (in decimal) of bandwidth to reserve for QoS packets.

Restart Windows for the change to take effect.

Registry Settings
System Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Psched]
Value Name: NonBestEffortLimit
Data Type: REG_DWORD (DWORD Value)
Value Data: Decimal Percentage (default = 20)

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