c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.343sec ssthresh 326 cwnd 163 rtt 81909us rttvar 66507us source 192.168.115.51
10.4.0.68 age 71.816sec cwnd 16 rtt 3842us rttvar 6098us source 10.4.0.51
10.4.0.51 age 71.946sec cwnd 10 rtt 3656us rttvar 5599us source 10.4.0.51
10.4.0.83 age 71.855sec ssthresh 16 cwnd 8 rtt 4992us rttvar 7382us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 71.903sec cwnd 10 rtt 1633us rttvar 2900us source 10.4.0.83
192.168.115.51 age 6.350sec cwnd 10 rtt 81783us rttvar 65343us source 192.168.119.83


m3
--

+ tc -s -d qdisc show dev ens192
qdisc htb 1: root refcnt 2 r2q 10 default 0x1 direct_packets_stat 0 ver 3.17 direct_qlen 1000
 Sent 7755970 bytes 117157 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80cb: parent 1:1 limit 10000p target 15.0ms tupdate 16.0ms alpha 0.156250 beta 3.195312 l4s_ect coupling_factor 2 drop_on_overload step_thresh 1.0ms drop_dequeue classic_protection 10% 
 Sent 7755970 bytes 117157 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 117157 pkts_in_l 0 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 351174486 bytes 234940 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc -s -d class show dev ens192
class htb 1:1 root leaf 80cb: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 7755970 bytes 117157 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 117157 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc -s -d qdisc show dev ens224
qdisc htb 1: root refcnt 2 r2q 10 default 0x1 direct_packets_stat 0 ver 3.17 direct_qlen 1000
 Sent 354686792 bytes 234940 pkt (dropped 0, overlimits 214263 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80cc: parent 1:1 limit 10000p target 15.0ms tupdate 16.0ms alpha 0.156250 beta 3.195312 l4s_ect coupling_factor 2 drop_on_overload step_thresh 1.0ms drop_dequeue classic_protection 10% 
 Sent 354686792 bytes 234940 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 712 pkts_in_l 229935 maxq 89
ecn_mark 8488 step_marks 8469
credit -3220 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 6115862 bytes 117157 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc -s -d class show dev ens224
class htb 1:1 root leaf 80cc: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 354686792 bytes 234940 pkt (dropped 0, overlimits 214263 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 230647 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc -s -d qdisc show dev ifb4ens192
qdisc netem 1: root refcnt 2 limit 1000000 delay 40.0ms
 Sent 354687232 bytes 234945 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc -s -d qdisc show dev ifb4ens224
qdisc netem 1: root refcnt 2 limit 1000000 delay 40.0ms
 Sent 7756410 bytes 117162 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0