c2
--

+ ip tcp_metrics show
192.168.119.83 age 5.756sec ssthresh 403 cwnd 203 rtt 96221us rttvar 79594us source 192.168.115.51
10.4.0.68 age 71.760sec cwnd 17 rtt 4261us rttvar 6740us source 10.4.0.51
10.4.0.51 age 71.930sec cwnd 10 rtt 3038us rttvar 4711us source 10.4.0.51
10.4.0.83 age 71.830sec cwnd 17 rtt 4981us rttvar 7445us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 71.926sec cwnd 10 rtt 1627us rttvar 2901us source 10.4.0.83
192.168.115.51 age 5.811sec cwnd 10 rtt 81600us rttvar 65276us 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 4038562 bytes 60745 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80c9: 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 4038562 bytes 60745 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 60745 pkts_in_l 0 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 342743110 bytes 235072 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 80c9: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 4038562 bytes 60745 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 60745 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 354305086 bytes 234687 pkt (dropped 55, overlimits 64191 requeues 1) 
 backlog 0b 0p requeues 1
qdisc dualpi2 80ca: 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 354305086 bytes 234687 pkt (dropped 55, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 4us delay_l 0us
pkts_in_c 64830 pkts_in_l 1 maxq 98
ecn_mark 224 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 3188222 bytes 60745 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 80ca: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 354305086 bytes 234687 pkt (dropped 0, overlimits 64191 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 64776 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 354887000 bytes 235077 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 4039002 bytes 60750 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0