please someone attend to this bug. it occurred in multiple scenarios. 1- create gre tunnel between n1--n2 2- add ip and route . it works 3- delete ip and route from gre and delete gre tunnel 4- create sub interface 5- add ip and route.
https://jira.fd.io/browse/VPP-1841 trace show on n1:------------------------------------------------------------------------------------------00:01:50:460713: dpdk-input GigabitEthernet4/0/0 rx queue 0 buffer 0x92d69: current data 0, length 98, buffer-pool 0, ref-count 1, totlen-nifb 0, trace handle 0x0 ext-hdr-valid l4-cksum-computed l4-cksum-correct PKT MBUF: port 2, nb_segs 1, pkt_len 98 buf_len 2176, data_len 98, ol_flags 0x0, data_off 128, phys_addr 0x10ab5ac0 packet_type 0x0 l2_len 0 l3_len 0 outer_l2_len 0 outer_l3_len 0 rss 0x0 fdir.hi 0x0 fdir.lo 0x0 IP4: 00:00:00:aa:00:00 -> 00:10:f3:5b:25:95 ICMP: 1.1.1.10 -> 2.1.1.10 tos 0x00, ttl 64, length 84, checksum 0x19ab dscp CS0 ecn NON_ECN fragment id 0x1be9, flags DONT_FRAGMENT ICMP echo_request checksum 0x92d400:01:50:460716: ethernet-input frame: flags 0x3, hw-if-index 3, sw-if-index 3 IP4: 00:00:00:aa:00:00 -> 00:10:f3:5b:25:9500:01:50:460718: ip4-input-no-checksum ICMP: 1.1.1.10 -> 2.1.1.10 tos 0x00, ttl 64, length 84, checksum 0x19ab dscp CS0 ecn NON_ECN fragment id 0x1be9, flags DONT_FRAGMENT ICMP echo_request checksum 0x92d400:01:50:460724: ip4-lookup fib 0 dpo-idx 28 flow hash: 0x00000000 ICMP: 1.1.1.10 -> 2.1.1.10 tos 0x00, ttl 64, length 84, checksum 0x19ab dscp CS0 ecn NON_ECN fragment id 0x1be9, flags DONT_FRAGMENT ICMP echo_request checksum 0x92d400:01:50:460725: ip4-load-balance fib 0 dpo-idx 3 flow hash: 0x00000000 ICMP: 1.1.1.10 -> 2.1.1.10 tos 0x00, ttl 64, length 84, checksum 0x19ab dscp CS0 ecn NON_ECN fragment id 0x1be9, flags DONT_FRAGMENT ICMP echo_request checksum 0x92d400:01:50:460725: ip4-rewrite tx_sw_if_index 10 dpo-idx 3 : ipv4 via 200.10.20.20 GigabitEthernet3/0/0.100: mtu:9000 00301802fa3c0010f0 00000000: 00301802fa3c0010f35b2594810000640800450000541be940003f011aab0101 00000020: 010a0201010a080092d4004503d77e714b5e00000000cb6c0d00000000:01:50:460726: adj-midchain-tx adj-midchain:[3]:ipv4 via 200.10.20.20 GigabitEthernet3/0/0.100: mtu:9000 00301802fa3c0010f35b2594810000000:01:50:460727: error-drop rx:GigabitEthernet4/0/000:01:50:460728: drop dpdk-input: no error ------------------------------------------------------------------------------------------ thanks
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