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Example Quality of Service (QoS) Settings

 

Topic Last Modified: 2012-02-29

This topic provides example settings for Quality of Service (QoS) in Lync Server 2010.

Edge Server Settings

On the internal edge of the Edge Server, the QOS policy is configured on the destination ports. On other servers and clients, the policy is based on source ports. Therefore, on the internal edge of the Edge Server, the policy is configured so that when remote ports are within a modality range, the policies on the remote ports are used.

Example QoS settings for an Internal Edge Server

Ports Description

49152-54000

Used for audio, the client is configured to use 20 ports, for example, ports 53081-54000. Other servers, such as an A/V Conferencing Server, use ports 49152-54000.

54001-60000

Used for video, the Lync Server client is configured to use 20 ports, for example, ports 54001-54020. Other servers, such as a A/V Conferencing Server, use ports 54001-60000.

60001-65000

Used for application sharing, the client is configured to use 20 ports, for example, 60001-60020. Other servers, such as an conferencing server, use ports 60001-65000.

65000-65020

Used for file transfer, the client is configured to use 20 ports, for example 65001-65020. This is a point to point file transfer only.

To use these settings on the internal edge, configure the following policies:


  • Audio   If the destination port is in the range 49152-54000 for UDP/TCP, assign Differentiated Services Code Point (DSCP) value “A.”


  • Video   If the destination port is in the range 540001-60000 for UDP/TCP, assign DSCP value “B.”


  • Application sharing   If the destination port is in the range 600001-65000 for TCP, assign DSCP value “C.”


  • File transfer   If the destination port is in the range 60001-65020 for TCP, assign DSCP value “D.”

Note

These are example settings only. You can customize the values used in your deployment.

For more information about creating a QoS policy on the A/V Edge Service, see Creating a Quality of Service (QoS) Policy for the A/V Edge Service.

To use these settings for Lync Server clients, configure the following policies:


  • Audio   If the source port is in the range 53081-54000 for UDP/TCP, assign DSCP value “A.” For clients, also add that EXE is communicator.exe to avoid marking traffic from other applications.


  • Video   If the source port is in the range 540001-54020 for UDP/TCP, assign DSCP value “B.” For clients, also add that EXE is communicator.exe to avoid marking traffic from other applications.


  • Application sharing   If the source port is in the range 600001-60020 for TCP, assign DSCP value “C.” For clients, also add that EXE is communicator.exe to avoid marking traffic from other applications.


  • File transfer   If the source port is in the range 65001-65020 for TCP, assign DSCP value “D.” For clients, also add that EXE is communicator.exe to avoid marking traffic from other applications.

To use these settings for Lync Server, configure the following policies:


  • Audio   If the source port is in the range 49152-54000 for UDP/TCP, assign DSCP value “A.”


  • Video   If the source port is in the range 540001-60000 for UDP/TCP, assign DSCP value “B.”


  • Application sharing   If the source port is in the range 600001-65000 for TCP, assign DSCP value “C.”

Note

File transfer is for point-to-point only, so it does not apply to the server.

For details about creating QoS policies on Lync Server, see Creating a Quality of Service (QoS) Policy on Lync Server and Creating a Client Quality of Service (QoS) Policy.