rca: unknown

test: 64B-avf-ethip4udp-nat44det-h262144-p63-s16515072-mrr 1c 2c 4c
        64B-avf-ethip4udp-nat44det-h65536-p63-s4128758-mrr 1c 2c 4c

frequency: sporadic. Typically only 1 TC fails, but it can be either 1c 2c or 4c.

testbed: daily: 2n-zn2, 2n-skx, 2n-icx, 2n-dnv, 2n-clx

example:

https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-vpp-perf-mrr-daily-master-2n-zn2/477/log.html.gz#s1-s1-s1-s2-s21

https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-vpp-perf-mrr-daily-master-2n-dnv/1190/log.html.gz#s1-s1-s1-s1-s9-t4

https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-vpp-perf-mrr-daily-master-2n-clx/1145/log.html.gz#s1-s1-s1-s2-s48-t2

https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-vpp-perf-mrr-daily-master-2n-zn2/570/log.html.gz#s1-s1-s1-s2-s21-t2

https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-vpp-perf-report-iterative-2206-2n-zn2/17/log.html.gz#s1-s1-s1-s2-s21-t3

https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-vpp-perf-report-iterative-2210-2n-zn2/7/log.html.gz#s1-s1-s1-s2-s21-t3

https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-vpp-perf-report-iterative-2302-2n-zn2/1/log.html.gz#s1-s1-s1-s2-s22-t1

NOTE: Analysis showed all packets in 0->1 direction went through. We don’t check 1->0 direction. Could be VPP bug.