c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.669sec ssthresh 23 cwnd 31 rtt 20959us rttvar 16556us source 192.168.115.51
10.4.0.68 age 72.010sec cwnd 16 rtt 4321us rttvar 7019us source 10.4.0.51
10.4.0.51 age 72.209sec cwnd 10 rtt 3305us rttvar 4962us source 10.4.0.51
10.4.0.83 age 72.109sec cwnd 15 rtt 4707us rttvar 8232us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 72.202sec cwnd 3 rtt 1597us rttvar 2827us source 10.4.0.83
192.168.115.51 age 6.759sec cwnd 10 rtt 15070us rttvar 7658us 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 6953962 bytes 104619 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d5: 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 6953962 bytes 104619 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 1us
pkts_in_c 103919 pkts_in_l 700 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 365032224 bytes 249584 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 80d5: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 6953962 bytes 104619 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 104619 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 375854160 bytes 249584 pkt (dropped 2, overlimits 107735 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d6: 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 375854160 bytes 249584 pkt (dropped 2, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 107964 pkts_in_l 700 maxq 50
ecn_mark 155 step_marks 0
credit -350680 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 5489460 bytes 104621 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 80d6: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 375854160 bytes 249584 pkt (dropped 0, overlimits 107735 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 108662 borrowed: 0 giants: 0
 tokens: 3895 ctokens: 3895


+ tc -s -d qdisc show dev ifb4ens192
qdisc netem 1: root refcnt 2 limit 1000000 delay 5.0ms
 Sent 375854694 bytes 249589 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 5.0ms
 Sent 6954504 bytes 104626 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0