Hi, I reported today an issue when using Pktgen-DPDK: https://github.com/pktgen/Pktgen-DPDK/issues/52
But I think it's more in DPDK than pktgen two identical machines with SFP+ DA cable between them DPDK 2.2.0 from tarball Pktgen-DPDK from git two identical machines: core i7 2600 (sandy bridge 4C/8T), HT disabled in the BIOS ASUS P8H67-M PRO BIOS 3904 (latest available) Ethernet controller: Intel Corporation 82598EB 10-Gigabit AF Dual Port Network Connection (rev 01) 01:00.0 0200: 8086:10f1 (rev 01) Subsystem: 8086:a21f boot kernel 3.16 unbutu 14.04 with isolcpus=2,3,4 When launching pktgen even with no TX asked the Errors RX counters keeps going up by about 7.4 millions per second: Errors Rx/Tx : 7471857054/0 In the log I get "Could not enable Rx Queue", might be the source of the issue? PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue 0 PMD: ixgbe_dev_rx_queue_start(): Could not enable Rx Queue 1 When sending traffic single UDP src/dst/IP/MAC the setup reaches 14204188 pps 64 bytes, the error counter is also increasing. Any idea what to look for? Laurent