c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.865sec cwnd 10 rtt 1703us rttvar 1161us source 192.168.115.51
10.4.0.68 age 72.024sec cwnd 17 rtt 1893us rttvar 3557us source 10.4.0.51
10.4.0.51 age 72.208sec cwnd 10 rtt 3217us rttvar 4998us source 10.4.0.51
10.4.0.83 age 72.101sec cwnd 17 rtt 5081us rttvar 7358us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 72.235sec cwnd 10 rtt 1640us rttvar 2906us source 10.4.0.83
192.168.115.51 age 6.998sec cwnd 10 rtt 1232us rttvar 950us 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 8263082 bytes 124481 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80cf: 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 8263082 bytes 124481 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 123781 pkts_in_l 700 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 371554054 bytes 249163 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 80cf: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 8263082 bytes 124481 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 124481 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 375215448 bytes 249164 pkt (dropped 0, overlimits 245115 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d0: 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 375215448 bytes 249164 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 720 pkts_in_l 245114 maxq 18
ecn_mark 141910 step_marks 141896
credit -3140 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 6520484 bytes 124482 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 80d0: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 375215448 bytes 249164 pkt (dropped 0, overlimits 245115 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 245834 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc -s -d qdisc show dev ifb4ens192
qdisc netem 1: root refcnt 2 limit 1000000
 Sent 375215846 bytes 249168 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
 Sent 8263582 bytes 124487 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0