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Below is the DSCP value table recommended by Microsoft.
| Media traffic type |
Client source port range |
Protocol |
DSCP value |
DSCP class |
| Audio |
50,000–50,019 |
TCP/UDP |
46 |
Expedited Forwarding (EF) |
| Video |
50,020–50,039 |
TCP/UDP |
34 |
Assured Forwarding (AF41) |
| Application/Screen Sharing |
50,040–50,059 |
TCP/UDP |
18 |
Assured Forwarding
(AF21)
|
In FortiGate, it is necessary to create three services.
Microsoft Teams Audio:
Microsoft Teams Video:
Microsoft Teams application and screen-sharing:
After that, create a firewall policy with a DSCP value.
- Policy 1 is for Teams audio.
- Policy 2 is for Teams video.
- Policy 3 is for the Teams application and screen sharing.
Below are the configuration templates:
config firewall policy
edit 1
set srcintf lan
set dstintf wan
set srcaddr all
set dstaddr all
set action accept
set schedule always
set service Teams_Audio
set diffserv-forward enable
set diffservcode-forward 101110
set diffserv-rev enable
set diffservcode-rev 101110
next
edit 2
set srcintf lan
set dstintf wan
set srcaddr all
set dstaddr all
set action accept
set schedule always
set service Teams_Video
set diffserv-forward enable
set diffservcode-forward 100010
set diffserv-rev enable
set diffservcode-rev 100010
next
edit 3
set srcintf lan
set dstintf wan
set srcaddr all
set dstaddr all
set action accept
set schedule always
set service Teams_App&ScreenSharing
set diffserv-forward enable
set diffservcode-forward 010010
set diffserv-rev enable
set diffservcode-rev 010010
next
end
Related documents:
Implement Quality of Service (QoS) in Microsoft Teams
Technical Tip: Differentiated Services Code Point (DSCP) marking
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