On 9/6/2021 8:34 AM, KESHAVARAO, RASHMI wrote: > Hi, > We are trying to use the ipv4_multicast app in DPDK examples. > However, we are not able to get it to run as expected. > > The behavior that we are seeing is that packets are being sent from a packet > generator but they are not being received by the APP. We have tried debugging > the app by putting prints at various places but still don't have a clue on > what is wrong. > > We tried other examples apps like testpmd, l2fwd etc and these are working > flawlessly. > > Need inputs from the DPDK experts on the ipv4_multicast app. > > Command used: > > > ./<build_dir>/examples/ipv4_multicast -c 0x1 -n 1 -- -p 0x5 -q 2 > > DPDK Version: 20.08 > NIC: XXV710 (fw version: 8.3) > Bound to: vfio-pci UIO > > > With the above command: > > * rte_eth_rx_burst() returns 0 in the ipv4_multicast app even when > packets are being sent to the NIC/port. > > > > Regards, > Rashmi. >
Hi Rashmi, Most probably because packets destination MAC address is not matching to NIC MAC address. Can you please either test with adding 'rte_eth_promiscuous_enable(portid);' (you can add after 'rte_eth_allmulticast_enable(portid);'), or by setting correct destination MAC for packets? Regards, ferruh
