XSF Discussion - 2020-03-16

Guus, okay, I got p2p mode to work by deploying a coturn server. However, with >2 participants, not even three chromiums can talk to each other

do you have any clue? would it help if I showed some jitsi-videobridge/jicofo logs?

I don’t see traffic to 443/10000 of jivibr, so...

jonas’: no time to help now. Coturn is not needed, as jvb should provide same service

Using coturn probably is hiding the real problem

maybe it is

no idea though

I’m 100% clueless about this

the debug facilities of the browsers are also completely useless

it makes no sense at all, I don’t even see outbound traffic to 10000 from my laptop

What, web things using anything but port 443? (RIP port 80)

Zash, UDP

for WebRTC

Oh right, SCTP over DTLS over UDP?

> jonas’ : the debug facilities of the browsers are also completely useless have you tried using chrome://webrtc-internals to debug chromium browsers?

Dele Olajide, ohh, I heard rumors that you’re knowledgeable about this type of stuff

Dele Olajide, so, I don’t know what I’m looking at there

if you had access to the jitsi-meet instance, would you be able to debug?

I would’ve expected to see port numbers or anything, but I don’t

https://sotecware.net/files/noindex/jitsi-rtc-dump.txt

webrtc-internals will let you know what media candidates were offered to your browser and which one was used or not

will it?

I can’t read that from the information (see the linked .txt file)

if it’s supposed to show that, it’s failing much earlier than that

https://pade.chat:5443/httpfileupload/25575130-2bbc-4477-a837-957a9a41d5d1/paste-nwifwrebh.png

oh wow

I don’t have those tabs

just getUserMedia Requests

That means you dont have any active webrtc peer connections

apparently

why tho

Jitsi-meet focus agent wont trigger web client to create them until at least 2 people in the MUC room are ready to share media

I have three chromiums which all show my camera picture locally

have they joined an MUC room monitored by the focus agent and is your focus agent bot activated and online? ✏

jicofo is activated and continuously health-checking the videobridge, so I’m assuming yes

there’s some activity going on between jicofo and videobridge even

the key thing about jifco is the focus user which has to be registered as an xmpp user and logged in with permissions to be a room owner

both should be the case, when I had that botched, I got error messages in the jicofo logs

when joining the room with another xmpp client, I see jicofo being in there

it’s owner/moderator

If all users and focus user are in MUC room, then focus user should start jingle sessions with all users and trigger the creation of webrtc peer connections with video-bridge ✏

I’m giving up for today

Dele Olajide, if you would want to take a look at https://jitsi.zombofant.net to check if there’s anything obvious and massively broken on the jitsi-meet/client side of things, that’d be great

ok. i will take a look 🙂

> jonas’ : if there’s anything obvious and massively broken on the jitsi-meet/client Your client is working ok in p2p mode with 2 participants, but no media streams when 3 or more in conference. I have seen this before a few times. Check the log files for video-bridge closely at startup for severe errors. Otherwise it is a network problem and UDP 10000 is blocked somewhere

Dele Olajide: do you know if only port 10000 must be open, or 10000 - 10100?

Does it depend on the number of participants somehow?

> vanitasvitae : Dele Olajide: do you know if only port 10000 must be open, or 10000 - 10100? is a single multiplexed UDP port. 10000 is the default

Ah ok

Then I can drastically remove the number of holes in my firewall :P

Dele Olajide, the only SEVERE log lines I get are stuff like this (and none of them during startup): JVB 2020-03-16 17:08:58.777 SEVERE: [8659] org.ice4j.socket.MergingDatagramSocket.log() Cannot find socket to remove. JVB 2020-03-16 17:50:01.876 SEVERE: [21343] org.jitsi.videobridge.SctpConnection.log() Error accepting SCTP connection conf_id=28bf62e703e257ae,content=data,ch_id=f96d7d556ccf5d6f,endp_id=f4d582d0

> jonas’ : Error accepting SCTP connection That does not look good. Videobridge is not listening for data channel connections

Is there a DTD or RelaxNG or similar for XEP documents? If so, where?

There's a `xep.dtd` in the repo

Zash, found it, thanks!