Nat sessions output between two successive wrk runs (wrk -t4 -c800 -d30s http://192.168.16.150/index.html):

NAT44 sessions:

-------- thread 0 vpp_main: 14881 sessions --------

  10.20.0.2: 0 dynamic translations, 2 static translations

  10.1.2.4: 0 dynamic translations, 3577 static translations

  10.1.3.7: 0 dynamic translations, 3002 static translations

  10.1.1.4: 0 dynamic translations, 3329 static translations

  192.168.16.150: 4971 dynamic translations, 0 static translations

vpp# sh nat44 sessions

NAT44 sessions:

-------- thread 0 vpp_main: 18561 sessions --------

  10.20.0.2: 0 dynamic translations, 2 static translations

  10.1.2.4: 0 dynamic translations, 4016 static translations

  10.1.3.7: 0 dynamic translations, 3430 static translations

  10.1.1.4: 0 dynamic translations, 3775 static translations

  192.168.16.150: 7338 dynamic translations, 0 static translations