c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.303sec ssthresh 119 cwnd 124 rtt 81115us rttvar 43312us source 192.168.115.51
10.4.0.68 age 72.022sec cwnd 17 rtt 3508us rttvar 6825us source 10.4.0.51
10.4.0.51 age 72.178sec cwnd 10 rtt 3621us rttvar 5620us source 10.4.0.51
10.4.0.83 age 72.028sec cwnd 17 rtt 5108us rttvar 7792us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 72.125sec cwnd 10 rtt 1646us rttvar 2916us source 10.4.0.83
192.168.115.51 age 6.358sec cwnd 10 rtt 81439us rttvar 46948us 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 7689314 bytes 115785 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80e3: 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 7689314 bytes 115785 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 115085 pkts_in_l 700 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 343138168 bytes 231556 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 80e3: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 7689314 bytes 115785 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 115785 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 348555700 bytes 231554 pkt (dropped 0, overlimits 166765 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80e4: 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 348555700 bytes 231554 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 42588 pkts_in_l 147121 maxq 90
ecn_mark 3535 step_marks 1029
credit -31920 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 6068340 bytes 115783 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 80e4: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 348555700 bytes 231554 pkt (dropped 0, overlimits 166765 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 189709 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 348556242 bytes 231561 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 7689652 bytes 115788 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0