Multicast not working Intel X710-DA4

[jhuyb]

We have a couple of Intel X710-DA4 quadport 10Gbit cards but it seems multicasting doesn't work from or to them.

I installed the latest firmware and the 1.2.38 driver for Linux on CentOS 6/7 but whatever I try it only sends out unicast according to tcpdump or omping.

I also tried disabling the rp filters in Linux and manually adding the multicast route to the interface.

On the same switch I also have an NC550 card in a server and this one works fine with multicast.

[jhuyb]

Hi Sandy,

After extensive testing we found out that the issue is indeed within the Intel..

As seperate ports multicasting works just fine until now with a lot of tweaking, in a bonding it works as well.

But the moment you place them in a bridge they stop working with multicast.

We tried 2 different cards as well now, 1 from Broadcom and one from Emulex and without doing anything multicast starts working just fine.

So this is definately a problem with your cards, and I have been told to give you an ultimatum of 2 weeks to get this mess fixed as otherwise we'll be looking into using other cards. As aside from a whole lot of time this has cost us a whole lot of money because of being behind on this project now.

Awaiting your reply.

[st4]

Hi Jimmy1987,

Thank you for taking time to test and we apologize for any delay. You can try to mount debugfs first use the following command:

mount –t debugfs /sys/kernel/debug

Hope this helps.

rgds,

wb

[rguo6]

Hi Jimmy,

Try the latest driver 1.48. It would work. I tried one of my NIC, looks it worked.

regards,

Rui

[jhuyb]

Hi Rui,

I will try it after I get back from my vacation next week and see if it works for us as well.

[jhuyb]

Hi,

It was tested and still not working.

And it's an issue with those cards, I am sure of that now, tested also with the Intel 520 series which has the ixgbe driver, no issues at all.

[SYeo3]

Hi jimmy1987,

Thanks for updating us on your test results. We'll continue to perform tests on this and will update you on our test results.

Sincerely,

Sandy

[SYeo3]

Hi jimmy1987,

We would like to request for the debug logs so we can further check your setup. Use the command below:

mount –t debugfs /sys/kernel/debug

Sincerely,

Sandy