c2
--

+ ip tcp_metrics show
192.168.119.83 age 5.595sec ssthresh 39 cwnd 29 rtt 11865us rttvar 12917us source 192.168.115.51
10.4.0.68 age 70.860sec cwnd 17 rtt 5392us rttvar 7257us source 10.4.0.51
10.4.0.51 age 71.044sec cwnd 10 rtt 3618us rttvar 5592us source 10.4.0.51
10.4.0.83 age 70.943sec cwnd 16 rtt 4672us rttvar 8247us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 71.051sec cwnd 3 rtt 1608us rttvar 2867us source 10.4.0.83
192.168.115.51 age 5.706sec cwnd 10 rtt 983us rttvar 540us 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 3808720 bytes 57318 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80bb: 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 3808720 bytes 57318 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 57318 pkts_in_l 0 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 361612378 bytes 248293 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 80bb: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 3808720 bytes 57318 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 57318 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 374903234 bytes 248293 pkt (dropped 0, overlimits 58901 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80bc: 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 374903234 bytes 248293 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 59546 pkts_in_l 0 maxq 27
ecn_mark 85 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 3006358 bytes 57318 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 80bc: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 374903234 bytes 248293 pkt (dropped 0, overlimits 58901 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 59546 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc -s -d qdisc show dev ifb4ens192
qdisc netem 1: root refcnt 2 limit 1000000
 Sent 374903674 bytes 248298 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 3809160 bytes 57323 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0