c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.120sec ssthresh 186 cwnd 147 rtt 81484us rttvar 43610us source 192.168.115.51
10.4.0.68 age 71.999sec cwnd 17 rtt 4801us rttvar 7500us source 10.4.0.51
10.4.0.51 age 72.156sec cwnd 10 rtt 3631us rttvar 5675us source 10.4.0.51
10.4.0.83 age 72.057sec cwnd 14 rtt 3212us rttvar 6001us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 72.131sec cwnd 3 rtt 1616us rttvar 2853us source 10.4.0.83
192.168.115.51 age 6.156sec cwnd 10 rtt 81781us rttvar 46910us 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 5850906 bytes 87925 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80e1: 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 5850906 bytes 87925 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 1us
pkts_in_c 87225 pkts_in_l 700 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 354808388 bytes 242176 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 80e1: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 5850906 bytes 87925 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 87925 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 364635434 bytes 242173 pkt (dropped 1, overlimits 116753 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80e2: 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 364635434 bytes 242173 pkt (dropped 1, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 59556 pkts_in_l 58832 maxq 40
ecn_mark 1469 step_marks 29
credit -16860 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 4619972 bytes 87923 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 80e2: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 364635434 bytes 242173 pkt (dropped 0, overlimits 116753 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 118387 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 364636074 bytes 242181 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 5851244 bytes 87928 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0