Scalability - Network & Stress Testing Questions

Hai Hoang

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Jul 24, 2025, 6:30:14 AMJul 24

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Hey guys, i'm trying to use BBB for a moderate amount of users and have some question about scalability?

1. In bbb netwokring config they recommend opening UDP ports 16384 to 32768 for media connections. This is a large range, and our company security policy makes it challenging. If we limit this port range, how will it affect:
Media quality (audio/video)?
The maximum number of concurrent users each server can support? Are there any practical minimums for this range for a moderate user base?
   If it does affect i can argue for them to open all the range for me :D

2.  Will implementing a TURN server help reduce the number of UDP ports we need to open directly on our main BBB application servers? If so, how does it mitigate the need for the wide 16k port range?  

3.  Has anyone successfully stress-tested BBB ? I'm looking for advice, instructions, or ideally, a script to simulate user load and assess performance.  

I'm using docker and bbb v3.0.1 with 3 servers

Any insights or experiences you can share would be greatly appreciated!

Thank you very much

benjamin.brauner

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Jul 25, 2025, 4:33:53 PMJul 25

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Shortly, for the stress test part, have a look on the bbb repo, there are playwright and gns3 tests.

Specially for the stress test,

https://github.com/bigbluebutton/bigbluebutton/tree/v3.0.x-release/bigbluebutton-tests%2Fplaywright%2Fstress

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Hai Hoang

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Jul 29, 2025, 1:06:08 PMJul 29

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Thank you Benjamin,

I haven't use this do you have some experience with the playwright?

I want to spawn multiple meetings to my server to test capacity, could you give me some guidance?

Really appericiate it :D

Vào lúc 03:33:53 UTC+7 ngày Thứ Bảy, 26 tháng 7, 2025, benjamin.brauner đã viết:

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