gistfile1.txt

# I'm deleting pod behind this socket 172.31.53.156:443

/ # netstat -nptu
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 172.20.191.42:46256     172.31.53.156:443       ESTABLISHED 1/kvm-operator-node
tcp        0      0 172.20.191.42:38938     172.31.0.1:443          ESTABLISHED 1/kvm-operator-node


/ # tcpdump -i eth0 -nn host 172.31.53.156
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 262144 bytes

# Pod is still alive and requiest was successful

08:37:58.315763 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [P.], seq 283507030:283507075, ack 4099106275, win 1348, length 45
08:37:58.319051 IP 172.31.53.156.443 > 172.20.191.42.46256: Flags [P.], seq 1:65, ack 45, win 282, length 64
08:37:58.319085 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [.], ack 65, win 1348, length 0
08:37:58.319267 IP 172.31.53.156.443 > 172.20.191.42.46256: Flags [.], seq 65:2845, ack 45, win 282, length 2780
08:37:58.319298 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [.], ack 2845, win 1342, length 0
08:37:58.319312 IP 172.31.53.156.443 > 172.20.191.42.46256: Flags [.], seq 2845:5625, ack 45, win 282, length 2780
08:37:58.319319 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [.], ack 5625, win 1342, length 0
08:37:58.319329 IP 172.31.53.156.443 > 172.20.191.42.46256: Flags [.], seq 5625:8405, ack 45, win 282, length 2780
08:37:58.319333 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [.], ack 8405, win 1342, length 0
08:37:58.319343 IP 172.31.53.156.443 > 172.20.191.42.46256: Flags [P.], seq 8405:8703, ack 45, win 282, length 298 
08:37:58.319347 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [.], ack 8703, win 1348, length 0
08:37:58.319458 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [P.], seq 45:87, ack 8703, win 1348, length 42
08:37:58.319658 IP 172.31.53.156.443 > 172.20.191.42.46256: Flags [P.], seq 8703:8741, ack 87, win 282, length 38
08:37:58.360563 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [.], ack 8741, win 1348, length 0

# Deleted pod here

08:38:28.320781 IP 172.20.191.42.46256 > 172.31.53.156.443: Flags [P.], seq 87:132, ack 8741, win 1348, length 45
08:38:28.321212 IP 172.31.53.156.443 > 172.20.191.42.46256: Flags [R], seq 4099115015, win 0, length 0
08:38:58.324227 IP 172.20.191.42.55242 > 172.31.53.156.443: Flags [S], seq 494662716, win 27800, options [mss 1390,nop,nop,sackOK,nop,wscale 7], length 0
08:38:58.324619 IP 172.31.53.156.443 > 172.20.191.42.55242: Flags [R.], seq 0, ack 494662717, win 0, length 0

# Looks like new connection successfully established

08:39:28.327343 IP 172.20.191.42.55406 > 172.31.53.156.443: Flags [S], seq 840130598, win 27800, options [mss 1390,nop,nop,sackOK,nop,wscale 7], length 0
08:39:28.327714 IP 172.31.53.156.443 > 172.20.191.42.55406: Flags [S.], seq 3333450840, ack 840130599, win 29200, options [mss 1460,nop,nop,sackOK,nop,wscale 7], length 0
08:39:28.327749 IP 172.20.191.42.55406 > 172.31.53.156.443: Flags [.], ack 1, win 218, length 0
08:39:28.327861 IP 172.20.191.42.55406 > 172.31.53.156.443: Flags [P.], seq 1:182, ack 1, win 218, length 181 
08:39:28.327979 IP 172.31.53.156.443 > 172.20.191.42.55406: Flags [.], ack 182, win 237, length 0
08:39:28.333364 IP 172.31.53.156.443 > 172.20.191.42.55406: Flags [P.], seq 1:1504, ack 182, win 237, length 1503
08:39:28.333404 IP 172.20.191.42.55406 > 172.31.53.156.443: Flags [.], ack 1504, win 241, length 0
08:39:28.338206 IP 172.20.191.42.55406 > 172.31.53.156.443: Flags [P.], seq 182:1603, ack 1504, win 241, length 1421
08:39:28.338431 IP 172.31.53.156.443 > 172.20.191.42.55406: Flags [.], ack 1603, win 260, length 0
08:39:28.341155 IP 172.31.53.156.443 > 172.20.191.42.55406: Flags [P.], seq 1504:1555, ack 1603, win 260, length 51
08:39:28.341201 IP 172.31.53.156.443 > 172.20.191.42.55406: Flags [P.], seq 1555:1611, ack 1603, win 260, length 56
08:39:28.341243 IP 172.20.191.42.55406 > 172.31.53.156.443: Flags [.], ack 1611, win 241, length 0