Hi, We are using VPP , which internally using dpdk.
*With vpp 18.01(dpdk 17.11.4)* : Whenever we set MTU of interface as 1500 , we can get 1500 size of untagged and tagged packet. *With vpp 19.0.5* (dpdk 19.05) : Whenever we set mtu as 1500 , we have seen issue with vlan packets, those are not even enter dpdk-input node of vpp. As per code difference which is leading to the above issue 1. Dpdk 17.11.4 (device_info->max_rx_pktlen = enic->max_mtu + ETHER_HDR_LEN + 4) 2. Dpdk 19.05 (enic->max_mtu + ETHER_HDR_LEN;) --------> *+ 4 is not there* So why we have changed this logic in later dpdk version? Thanks, Chetan
