cli --- + ip tcp_metrics show 10.9.9.2 age 56.435sec ssthresh 178 cwnd 209 rtt 160934us rttvar 85493us source 10.9.9.1 srv --- + ip tcp_metrics show 10.9.9.1 age 56.373sec cwnd 10 rtt 160270us rttvar 92080us 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 22966734 bytes 347483 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 qdisc fq_codel 8081: parent 1:1 limit 10240p flows 1 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn Sent 22966734 bytes 347483 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 maxpacket 722 drop_overlimit 0 new_flow_count 1 ecn_mark 0 new_flows_len 0 old_flows_len 1 qdisc ingress ffff: parent ffff:fff1 ---------------- Sent 1036811180 bytes 692129 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 8081: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 Sent 22966734 bytes 347483 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 lended: 347483 borrowed: 0 giants: 0 tokens: 3755 ctokens: 3755 class fq_codel 8081:1 parent 8081: (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 deficit 646 count 0 lastcount 0 ldelay 1us class fq_codel 8081:1 parent 8081: (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 deficit 646 count 0 lastcount 0 ldelay 1us + 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 1046500986 bytes 692129 pkt (dropped 0, overlimits 629193 requeues 0) backlog 0b 0p requeues 0 qdisc fq_codel 8082: parent 1:1 limit 10240p flows 1 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn Sent 1046500986 bytes 692129 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 maxpacket 1514 drop_overlimit 0 new_flow_count 1 ecn_mark 83 new_flows_len 0 old_flows_len 1 qdisc ingress ffff: parent ffff:fff1 ---------------- Sent 18101972 bytes 347483 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 8082: prio 0 quantum 200000 rate 50Mbit ceil 50Mbit linklayer ethernet burst 1600b/1 mpu 0b cburst 1600b/1 mpu 0b level 0 Sent 1046500986 bytes 692129 pkt (dropped 0, overlimits 629193 requeues 0) backlog 0b 0p requeues 0 lended: 692129 borrowed: 0 giants: 0 tokens: 3755 ctokens: 3755 class fq_codel 8082:1 parent 8082: (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 deficit 38 count 3 lastcount 1 ldelay 1us class fq_codel 8082:1 parent 8082: (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 deficit 38 count 3 lastcount 1 ldelay 1us + tc-l4s -s -d qdisc show dev ifb4mid.l qdisc netem 1: root refcnt 2 limit 1000000 delay 80.0ms Sent 1046501476 bytes 692136 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 22967154 bytes 347489 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 + tc-l4s -s -d class show dev ifb4mid.r