c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.512sec ssthresh 70 cwnd 63 rtt 27952us rttvar 27196us source 192.168.115.51
10.4.0.68 age 71.734sec cwnd 17 rtt 5191us rttvar 9182us source 10.4.0.51
10.4.0.51 age 71.896sec cwnd 10 rtt 3640us rttvar 5638us source 10.4.0.51
10.4.0.83 age 71.793sec cwnd 17 rtt 5035us rttvar 7534us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 71.883sec cwnd 10 rtt 1630us rttvar 2802us source 10.4.0.83
192.168.115.51 age 6.596sec cwnd 10 rtt 11053us rttvar 8978us 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 4036820 bytes 60788 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80c1: 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 4036820 bytes 60788 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 60788 pkts_in_l 0 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 362376988 bytes 248624 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 80c1: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 4036820 bytes 60788 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 60788 borrowed: 0 giants: 0
 tokens: 3895 ctokens: 3895


+ 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 375405784 bytes 248624 pkt (dropped 1, overlimits 64368 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80c2: 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 375405784 bytes 248624 pkt (dropped 1, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 1us delay_l 0us
pkts_in_c 65006 pkts_in_l 0 maxq 26
ecn_mark 42 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 3185906 bytes 60789 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 80c2: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 375405784 bytes 248624 pkt (dropped 0, overlimits 64368 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 65005 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc -s -d qdisc show dev ifb4ens192
qdisc netem 1: root refcnt 2 limit 1000000 delay 5.0ms
 Sent 375406262 bytes 248629 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 4037302 bytes 60794 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0