I am testing VPP on an EC2 instance with SR-IOV support (m4). VPP is unable to return a ping from another (identical) instance. From the trace shown below, it seems the VLAN header is not stripped by the interface which is causing packet drop.
I tried creating sub interface for the VLAN 2336 using command here. https://docs.fd.io/vpp/16.09/vnet_vnet.html But, it also gave an error shown below. Any suggestions? Is creating sub-interfaces the right approach to solve the issue? vpp# show trace ------------------- Start of thread 0 vpp_main ------------------- Packet 1 00:02:06:142280: dpdk-input TenGigabitEthernet0/4/0 rx queue 0 buffer 0x4d8e: current data 0, length 102, free-list 0, totlen-nifb 0, trace 0x0 PKT MBUF: port 0, nb_segs 1, pkt_len 102 buf_len 2176, data_len 102, ol_flags 0x3, data_off 128, phys_addr 0xa66feb00 packet_type 0x10 Packet Offload Flags PKT_RX_VLAN_PKT (0x0001) RX packet is a 802.1q VLAN packet PKT_RX_RSS_HASH (0x0002) RX packet with RSS hash result 2336 Packet Types RTE_PTYPE_L3_IPV4 (0x0010) IPv4 packet without extension headers IP4: 0e:0e:8b:e4:08:f0 -> 0e:ad:41:68:7a:34 802.1q vlan 2336 ICMP: 10.0.2.58 -> 10.0.2.240 tos 0x00, ttl 64, length 84, checksum 0x105a fragment id 0x1126, flags DONT_FRAGMENT ICMP echo_request checksum 0x14d1 00:02:06:142289: ethernet-input IP4: 0e:0e:8b:e4:08:f0 -> 0e:ad:41:68:7a:34 802.1q vlan 2336 00:02:06:142294: error-drop ethernet-input: unknown vlan vpp# create sub TenGigabitEthernet0/4/0 2336 create sub-interfaces: rte_eth_dev_vlan_filter[0]: err 1073741824 Thanks Abhigyan
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