c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.133sec ssthresh 303 cwnd 187 rtt 89342us rttvar 73573us source 192.168.115.51
10.4.0.68 age 71.727sec cwnd 14 rtt 3027us rttvar 4783us source 10.4.0.51
10.4.0.51 age 71.877sec cwnd 10 rtt 3035us rttvar 4854us source 10.4.0.51
10.4.0.83 age 71.775sec cwnd 17 rtt 5246us rttvar 9140us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 71.870sec cwnd 3 rtt 1601us rttvar 2849us source 10.4.0.83
192.168.115.51 age 6.191sec cwnd 10 rtt 81640us rttvar 65459us 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 3988852 bytes 60058 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80c7: 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 3988852 bytes 60058 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 60058 pkts_in_l 0 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 349180682 bytes 239515 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 80c7: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 3988852 bytes 60058 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 60058 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 361613262 bytes 239515 pkt (dropped 0, overlimits 64398 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80c8: 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 361613262 bytes 239515 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 64910 pkts_in_l 0 maxq 35
ecn_mark 19 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 3148130 bytes 60058 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 80c8: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 361613262 bytes 239515 pkt (dropped 0, overlimits 64398 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 64910 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 361613702 bytes 239520 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 3989292 bytes 60063 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0