cli --- + ip tcp_metrics show 10.9.9.2 age 18.276sec ssthresh 128 cwnd 139 rtt 93120us rttvar 53770us source 10.9.9.1 srv --- + ip tcp_metrics show 10.9.9.1 age 18.243sec cwnd 10 rtt 80166us rttvar 46096us 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 7594874 bytes 114853 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 qdisc pie 8079: parent 1:1 limit 1000p target 20.0ms tupdate 32.0ms alpha 2 beta 20 ecn Sent 7594874 bytes 114853 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 prob 0.000000 delay 0us avg_dq_rate 0 pkts_in 114853 overlimit 0 dropped 0 maxq 0 ecn_mark 0 qdisc ingress ffff: parent ffff:fff1 ---------------- Sent 340777252 bytes 227537 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 8079: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 Sent 7594874 bytes 114853 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 lended: 114853 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 343961256 bytes 227536 pkt (dropped 1, overlimits 214132 requeues 0) backlog 0b 0p requeues 0 qdisc pie 807a: parent 1:1 limit 1000p target 20.0ms tupdate 32.0ms alpha 2 beta 20 ecn Sent 343961256 bytes 227536 pkt (dropped 1, overlimits 0 requeues 0) backlog 0b 0p requeues 0 prob 0.000000 delay 0us avg_dq_rate 0 pkts_in 227536 overlimit 0 dropped 1 maxq 810 ecn_mark 68 qdisc ingress ffff: parent ffff:fff1 ---------------- Sent 5986932 bytes 114853 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 807a: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 Sent 343961256 bytes 227536 pkt (dropped 1, overlimits 214132 requeues 0) backlog 0b 0p requeues 0 lended: 227536 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 343963120 bytes 227542 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 7595224 bytes 114858 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 + tc-l4s -s -d class show dev ifb4mid.r