cli
---

+ ip tcp_metrics show
10.9.9.2 age 55.159sec ssthresh 86 cwnd 179 rtt 173513us rttvar 96532us source 10.9.9.1


srv
---

+ ip tcp_metrics show
10.9.9.1 age 55.090sec cwnd 10 rtt 160194us rttvar 92059us 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 20540702 bytes 308725 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
qdisc pie 808d: parent 1:1 limit 1000p target 15.0ms tupdate 15.0ms alpha 2 beta 20 
 Sent 20540702 bytes 308725 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay 0us avg_dq_rate 0
pkts_in 308725 overlimit 0 dropped 0 maxq 0 ecn_mark 0

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 949713704 bytes 634063 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 808d: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 20540702 bytes 308725 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 308725 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 957931968 bytes 633628 pkt (dropped 436, overlimits 560549 requeues 0) 
 backlog 0b 0p requeues 0
qdisc pie 808e: parent 1:1 limit 1000p target 15.0ms tupdate 15.0ms alpha 2 beta 20 
 Sent 957931968 bytes 633628 pkt (dropped 436, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0
prob 0.000000 delay 0us avg_dq_rate 0
pkts_in 633628 overlimit 0 dropped 436 maxq 741 ecn_mark 0

qdisc ingress ffff: parent ffff:fff1 ---------------- 
 Sent 16218440 bytes 308723 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 808e: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 
 Sent 957931968 bytes 633628 pkt (dropped 436, overlimits 560549 requeues 0) 
 backlog 0b 0p requeues 0
 lended: 633628 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 80.0ms
 Sent 958591076 bytes 634070 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 80.0ms
 Sent 20540982 bytes 308729 pkt (dropped 0, overlimits 0 requeues 0) 
 backlog 0b 0p requeues 0

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