Hi,
I am seeing "Tx packet drops" on a VPP controlled DPDK device (VPP 18.07).
Initially, traffic was working fine between the device and a SecGW
connected via an IPsec tunnel. After a few hours, the device has become
unreachable and ARP became unresolved.
Cleared VPP counters and initiated the ping again, then observed that the
ARP requests from SecGW were reaching the device but ARP response packets
were dropping at DPDK.
The below is the "show error" output when ping was initiated from SecGW to
the device.
Count Node Reason
7 pps-policer PPS Policer classify hits
7 arp-input ARP req to host
13 kni-receive ARP req from Host
7 kni-receive ARP resp from Host
1 ipsec-output-ip6 IPSec pkts received
1 ipsec-output-ip6 IPSec policy bypass
1 ip6-frag packet smaller than MTU
1 ip6-frag number of sent fragments
21 EthernetSwitch2/0/0-tx Tx packet drops (dpdk tx
failure)
The below is the "show hardware" output. There were no tx packets
incremented here:
EthernetSwitch2/0/0 2 up EthernetSwitch2/0/0
Ethernet address <TRSW_43>20:78:52:56:d4:10</TRSW_43>
Intel FM10000 Family Ethernet Switch
carrier up full duplex speed 50000 mtu 9990
flags: admin-up pmd maybe-multiseg subif
rx queues 1, rx desc 8192, tx queues 3, tx desc 2048
cpu socket 0
rx frames ok 23
rx bytes ok 1440
extended stats:
rx good packets 23
rx good bytes 1440
rx q0packets 23
rx q0bytes 1440
rx q0 packets 23
rx q0 bytes 1440
kni0 3 up kni0
The "show run" output gives the below result:
Thread 2 vpp_wk_1 (lcore 7)
Time 76.8, average vectors/node 1.06, last 128 main loops 0.00 per node 0.00
vector rates in 7.2919e-1, out 0.0000e0, drop 0.0000e0, punt 0.0000e0
Name State Calls Vectors
Suspends Clocks Vectors/Call
EthernetSwitch2/0/0-output active 36 36
0 1.24e3 1.00
EthernetSwitch2/0/0-tx active 36 0
0 1.25e3 0.00
dpdk-crypto-input polling 386701977 0
0 1.60e2 0.00
dpdk-input polling 386701977 56
0 1.15e9 0.00
interface-output active 36 36
0 6.68e2 1.00
ip4-arp active 17 20
0 1.76e4 1.18
ip4-lookup active 17 20
0 3.19e3 1.18
ip6-frag active 3 3
0 4.92e3 1.00
ip6-lookup active 3 3
0 3.69e3 1.00
ip6-rewrite active 3 3
0 4.25e3 1.00
ipqos active 36 36
0 2.34e3 1.00
ipsec-output-ip4 active 17 20
0 2.31e3 1.18
ipsec-output-ip6 active 3 3
0 3.95e3 1.00
kni-receive active 52 56
0 2.23e3 1.08
Could you please provide your comments for me to analyze this issue?
Thanks in advance,
Aswin
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