Please check “sudo dpdk-devbind.py -s” to see if both ports are bound to vfio-pci And some questions: What DPDK app are you running? What are your EAL command line arguments? What do you mean by going down (as reported by what?) Thank you, Georgii From: Lokesh Chakka Sent: Monday, August 01, 2022 12:09 AM To: users Subject: intel 100 Gbps Network card shutting down after enabling dpdk hello, Recently I have bought one intel network card https://ark.intel.com/content/www/us/en/ark/products/210969/intel-ethernet-network-adapter-e8102cqda2.html The moment I do devbind, cards are shutting down. $ lspci | grep -i intel c3:00.0 Ethernet controller: Intel Corporation Ethernet Controller E810-C for QSFP (rev 02) c3:00.1 Ethernet controller: Intel Corporation Ethernet Controller E810-C for QSFP (rev 02) $ sudo dpdk-devbind.py -b vfio-pci c3:00.0 c3:00.1 After this, cards are going down. EAL is giving following error EAL: Requested device 0000:c3:00.1 cannot be used EAL: Error - exiting with code: 1 Cause: Error: number of ports must be even Did anyone face this issue or anyone know how to fix the issue? Thanks & Regards -- Lokesh Chakka.