10 Gigabit Ethernet Questions

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7 hours ago, The Computer Audiophile said:

Hi Guys, I recently switched to using the 10 Gb card in my CAPS twenty server and have noticed a few issues pop up with Roon. Playback can be delayed for quite a few seconds from Streaming services and some album have skipped playing tracks after a few seconds. This all happened after switching to the 10 Gb card. 

 

I'm going to say that this has nothing to do with your 10Gb card because I've had intermittent problems with streaming through Roon. I just streamed a 16/44 album from Quboz and then tried a 24/96 and it didn't play. Then I retried the same album 16/44.1 and it plays fine ... go figure ...

 

Use IPerf3 to measure the bandwidth, packet loss etc, between endpoints.

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13 hours ago, bobflood said:

Hi Chris, I had a similar problem with my uRendu HQP NAA when I attempted to use a 10Gb port on the switch feeding it. When I switched back to a 1 Gb port the problem resolved. It is possible that the NAA software is where the problem is. 

 

IIRC its that the device doesn't actually support 1Gbe, and would need flow control enabled ... you might need to configure your switch ... this has nothing to do with NAA software because ethernet flow control is at a lower layer... the Ethernet layer.

 

In any case this is a 10Gbe NIC on the server. I'm not familiar with the driver so can't be sure, but the Intel, Solarflare and Mellanox NICs I've use work very well.

 

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48 minutes ago, bobflood said:

Thanks, I also did enable flow control on the switch and have not had any problem since then. The actual problem I was having on the 10 Gb port was that the NAA was unable to play at all even with flow control on. After switching back to the 1 Gb port it works just fine with no problems since. What was strange is that it did play for a while on the 10 Gb port but then just stopped and would not restart. It did take me a bit of trial and error to figure out that it was the port on the switch but once I did all is fine.

 

I'm not a big fan of copper 10Gbe because its power hungry. I don't know if the power usage gets better when running a 10Gbe copper port at 1Gbe. I don't personally think that any theoretical improvements in ethernet jitter outweigh the real increases in power usage. (typically <= 1W/port vs 1.5-4W nowadays and 12W in the past)