cli
---

+ ip tcp_metrics show
10.9.9.2 age 16.902sec ssthresh 97 cwnd 113 rtt 83443us rttvar 43901us source 10.9.9.1


srv
---

+ ip tcp_metrics show
10.9.9.1 age 16.873sec cwnd 10 rtt 83527us rttvar 48407us source 10.9.9.2


mid
---

+ tc-l4s -s -d qdisc show dev mid.l
qdisc htb 1: root refcnt 2 r2q 10 default 0x1 direct_packets_stat 0 ver 3.17 direct_qlen 1000
 Sent 8057464 bytes 121620 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc pie 8075: parent 1:1 limit 100p target 5.0ms tupdate 32.0ms alpha 2 beta 20 ecn 
 Sent 8057464 bytes 121620 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay 0us avg_dq_rate 0
pkts_in 121620 overlimit 0 dropped 0 maxq 0 ecn_mark 0

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 363037196 bytes 242375 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev mid.l
class htb 1:1 root leaf 8075: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 8057464 bytes 121620 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 121620 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc-l4s -s -d qdisc show dev mid.r
qdisc htb 1: root refcnt 2 r2q 10 default 0x1 direct_packets_stat 0 ver 3.17 direct_qlen 1000
 Sent 366101908 bytes 242158 pkt (dropped 217, overlimits 231580 requeues 0) 
 backlog 0b 0p requeues 0
qdisc pie 8076: parent 1:1 limit 100p target 5.0ms tupdate 32.0ms alpha 2 beta 20 ecn 
 Sent 366101908 bytes 242158 pkt (dropped 217, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay 0us avg_dq_rate 0
pkts_in 242158 overlimit 217 dropped 217 maxq 99 ecn_mark 19

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 6354784 bytes 121620 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev mid.r
class htb 1:1 root leaf 8076: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 366101908 bytes 242158 pkt (dropped 217, overlimits 231580 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 242158 borrowed: 0 giants: 0
 tokens: 3755 ctokens: 3755


+ tc-l4s -s -d qdisc show dev ifb4mid.l
qdisc netem 1: root refcnt 2 limit 1000000 delay 40.0ms
 Sent 366430796 bytes 242380 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev ifb4mid.l

+ tc-l4s -s -d qdisc show dev ifb4mid.r
qdisc netem 1: root refcnt 2 limit 1000000 delay 40.0ms
 Sent 8057814 bytes 121625 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

+ tc-l4s -s -d class show dev ifb4mid.r