c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.853sec ssthresh 23 cwnd 19 rtt 11184us rttvar 6175us source 192.168.115.51
10.4.0.68 age 72.047sec cwnd 17 rtt 4849us rttvar 7473us source 10.4.0.51
10.4.0.51 age 72.207sec cwnd 10 rtt 3628us rttvar 5554us source 10.4.0.51
10.4.0.83 age 72.107sec cwnd 17 rtt 5006us rttvar 7389us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 72.200sec cwnd 10 rtt 1606us rttvar 2857us source 10.4.0.83
192.168.115.51 age 6.939sec cwnd 10 rtt 11095us rttvar 6167us 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 8236862 bytes 124083 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d7: 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 8236862 bytes 124083 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 0us
pkts_in_c 123383 pkts_in_l 700 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 369787978 bytes 247960 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 80d7: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 8236862 bytes 124083 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 124083 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 373397134 bytes 247963 pkt (dropped 0, overlimits 241899 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d8: 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 373397134 bytes 247963 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 720 pkts_in_l 244596 maxq 12
ecn_mark 47723 step_marks 47701
credit -4220 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 6499892 bytes 124086 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 80d8: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 373397134 bytes 247963 pkt (dropped 0, overlimits 241899 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 245316 borrowed: 0 giants: 0
 tokens: 3895 ctokens: 3895


+ tc -s -d qdisc show dev ifb4ens192
qdisc netem 1: root refcnt 2 limit 1000000 delay 5.0ms
 Sent 373397412 bytes 247965 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 5.0ms
 Sent 8237446 bytes 124091 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0