DPDK support required for the intel NIC model X520 DA2

[Abdul123]

HI,

I am Abdul from Bangalore. Regarding 10G DPDK support, I experiencing issues with external device communication for UDP packet capturing using DPDK-bound ports.

I verified that loopback test using testpmd application and it's working correctly. However, when I connect an external device to send packets to the DPDK-bound port, no packets are received and there is no communication.

I need a help to resolve the problem and I have attached my setup as below,

my system configuration 

OS------------------CentOS 9

DPDK Version------23.11

ports----------------Intel 10G Dual ports x520 DA2

Thanks in advance

[yuzhang3_intel]

We have a specific forum to discuss dpdk issues, you can get help from the forum below:

https://community.intel.com/t5/tag/DPDK/tg-p/tag-id/483

[raohenry]

Hi @Abdul123 ,

Thanks for the detailed info. Since testpmd works in loopback but fails with external traffic, here are a few things to check:

1. Bind Check: Make sure both ports on the X520 DA2 are properly bound to DPDK-compatible drivers (like igb_uio or vfio-pci).

2. Link Status: Run dpdk-devbind.py --status to confirm the link is up on the external-facing port.

3. Promiscuous Mode: Enable it in testpmd with set promisc all on — sometimes needed to receive packets not matching the MAC.

4. Firewall / SELinux: Make sure nothing on CentOS 9 is blocking or interfering with NIC traffic.

5. Cabling & Compatibility: Double-check the SFP modules and cables are supported by the X520 and that link is established with the external device.

Let me know if you can share your testpmd command and output — that might help pinpoint the issue further.