d-Snake/Dante/artnet through a VLAN

AHM AHM Troubleshooting
1

Hello,

This problem has already been addressed several times in the forum, but I haven’t found an answer.

We have a GLD-80 and a GLD-112 in our configuration. The connection between the two is made via two Dante cards.

Two Cisco switches (SG300-52MP) provide VLAN connectivity for the Artnet, Dante, GLD control, Armonia for Powersoft amplifiers, and Cisco switch management protocols.

I’m currently testing to route the d-Snake link through them, which would allow everything to be routed through two trunk ports on each side (one active, the other as backup).

Unfortunately, I’m getting various errors with the d-Snake connection.
I started by restoring the switch to its initial configuration, then disabled all Layer 3 protocols. If only a console and an AR2412 (for example) are connected, it works. If, in this configuration, I connect a device to a different VLAN (also Layer 2 for testing), the AR2412 errors out every 15 seconds, and the console detects a QOS problem.

Does anyone have any idea what d-Snake frames are made up of? Is it possible to use DSCP priorities for this protocol? If so, which DSCP is used to send the various information?

Thanks in advance for your answers. And sorry, my English isn’t perfect…

Seb

2

You’ve probably already seen this support article, but it talks about using network switches with DSnake. https://support.allen-heath.com/hc/en-gb/articles/4403304180497-Audio-Networking-Can-I-run-dSNAKE-through-a-network-switch

They definitely suggest using layer 2 switches since none of the layer 3 “extras” are compatible with DSnake.

If you are still having problems, I would suggest forcing the DSnake ports to fast ethernet speed (100Base-TX) instead of using any sort of “auto sensing” functionality for the transmission speeds.

3 
Hello,

Thanks for the reply. I've already read everything I could find about Dsnake connections via a VLAN. Some people have apparently been able to make this type of connection, using managed switches, but without detailing their settings. I haven't found anything about the type of frames used by the Dsnake protocol, nor the priorities or clock rates. And I think that's where my problem lies.
These Cisco switch references are widely used in audio networks; I imagine people have already tested them.

The idea would be to be able to share the switch configuration with Dsnake protocol users if I manage to establish this connection via VLAN.

Have a nice day, Seb