c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.827sec ssthresh 7 cwnd 12 rtt 2527us rttvar 1874us source 192.168.115.51
10.4.0.68 age 72.021sec cwnd 17 rtt 3351us rttvar 5347us source 10.4.0.51
10.4.0.51 age 72.183sec cwnd 10 rtt 3356us rttvar 5288us source 10.4.0.51
10.4.0.83 age 72.104sec cwnd 16 rtt 4474us rttvar 6611us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 72.197sec cwnd 10 rtt 1612us rttvar 2873us source 10.4.0.83
192.168.115.51 age 6.919sec cwnd 10 rtt 910us rttvar 537us 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 8210584 bytes 123688 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d3: 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 8210584 bytes 123688 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 122988 pkts_in_l 700 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 371012056 bytes 249293 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 80d3: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 8210584 bytes 123688 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 123688 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 375412116 bytes 249278 pkt (dropped 17, overlimits 230981 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d4: 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 375412116 bytes 249278 pkt (dropped 17, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 14983 pkts_in_l 216781 maxq 35
ecn_mark 104495 step_marks 38736
credit -3580 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 6479116 bytes 123690 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 80d4: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 375412116 bytes 249278 pkt (dropped 0, overlimits 230981 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 231747 borrowed: 0 giants: 0
 tokens: 3895 ctokens: 3895


+ tc -s -d qdisc show dev ifb4ens192
qdisc netem 1: root refcnt 2 limit 1000000
 Sent 375414120 bytes 249298 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 8211126 bytes 123695 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0