Forum Discussion
QoS Port Range
- Dec 08, 2020
Hi Aerton , as ChrisHoardMVP already mentioned: the client is using the port range documented by Microsoft.
The mentioned ports in the doc (Implement Quality of Service in Microsoft Teams - Microsoft Teams | Microsoft Docs) specifies the source ports used by the Client.
The destination ports differ on the call flow scenario. When we are talking about a direct 1:1 connection between two Teams client, source and destination ports for Audio are in the same range 50.000 to 50.019.
When we are talking about a Tams Meeting, the destination port for the session will be TCP 443 or more likely UDP 3478 till 34781.
See here
https://docs.microsoft.com/en-us/microsoftteams/qos-in-teams#choose-initial-port-ranges-for-each-media-type
This will have the recommended initial port ranges. I haven't personally seen any documentation out there that references using anything below the 50,000 port range.
Hope that helps to answer your question!
Best, Chris
- AertonNov 20, 2020Copper Contributor
I want to know specifically:
- Do we need to open 10k+ ports for 7500 users or can we limit the ports to 1 or 2k (or lower) for 7500 users and have QoS in place?
- The number of 7500 users is still growing yearly so, we want to be sure
- Dec 08, 2020
Hi Aerton , as ChrisHoardMVP already mentioned: the client is using the port range documented by Microsoft.
The mentioned ports in the doc (Implement Quality of Service in Microsoft Teams - Microsoft Teams | Microsoft Docs) specifies the source ports used by the Client.
The destination ports differ on the call flow scenario. When we are talking about a direct 1:1 connection between two Teams client, source and destination ports for Audio are in the same range 50.000 to 50.019.
When we are talking about a Tams Meeting, the destination port for the session will be TCP 443 or more likely UDP 3478 till 34781.