c2
--

+ ip tcp_metrics show
192.168.119.83 age 6.707sec ssthresh 28 cwnd 25 rtt 19793us rttvar 11169us source 192.168.115.51
10.4.0.68 age 72.036sec cwnd 17 rtt 3877us rttvar 6094us source 10.4.0.51
10.4.0.51 age 72.192sec cwnd 8 rtt 3920us rttvar 6670us source 10.4.0.51
10.4.0.83 age 72.090sec cwnd 17 rtt 5246us rttvar 9135us source 10.4.0.51


s2
--

+ ip tcp_metrics show
10.4.0.51 age 72.223sec cwnd 3 rtt 1637us rttvar 2870us source 10.4.0.83
192.168.115.51 age 6.833sec cwnd 10 rtt 19662us rttvar 10785us 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 7486314 bytes 112703 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80d9: 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 7486314 bytes 112703 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 7us delay_l 0us
pkts_in_c 112003 pkts_in_l 700 maxq 0
ecn_mark 0 step_marks 0
credit -121120 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 368431098 bytes 249461 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 80d9: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 7486314 bytes 112703 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 112703 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 375666228 bytes 249458 pkt (dropped 4, overlimits 176618 requeues 0) 
 backlog 0b 0p requeues 0
qdisc dualpi2 80da: 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 375666228 bytes 249458 pkt (dropped 4, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay_c 0us delay_l 1us
pkts_in_c 50076 pkts_in_l 127403 maxq 32
ecn_mark 10659 step_marks 308
credit -106920 (L)

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 5908608 bytes 112704 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 80da: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 375666228 bytes 249458 pkt (dropped 0, overlimits 176618 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 177475 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 375667018 bytes 249466 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 7486814 bytes 112709 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0