uname -a: Linux mgmt 5.4.0-74-generic #83-Ubuntu SMP Sat May 8 02:35:39 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux tc -V: tc utility, iproute2-ss200127 fq_codel flow hash keys src --------------------------- qdisc htb 1: root refcnt 2 r2q 10 default 0xfffe direct_packets_stat 0 direct_qlen 1000 qdisc fq_codel fffe: parent 1:fffe limit 10240p flows 65536 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn filter protocol all pref 49152 flow chain 0 filter protocol all pref 49152 flow chain 0 handle 0x1 hash keys src divisor 65536 baseclass fffe:1 qdisc htb 1: root refcnt 2 r2q 10 default 0xfffe direct_packets_stat 0 direct_qlen 1000 qdisc fq_codel fffe: parent 1:fffe limit 10240p flows 65536 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn filter protocol all pref 49152 flow chain 0 filter protocol all pref 49152 flow chain 0 handle 0x1 hash keys src divisor 65536 baseclass fffe:1 iperf3 -P 1 -B 10.7.0.1 -c 10.7.1.1 -p 5101 iperf3 -P 2 -B 10.7.0.2 -c 10.7.1.1 -p 5102 Connecting to host 10.7.1.1, port 5101 [ 5] local 10.7.0.1 port 35743 connected to 10.7.1.1 port 5101 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 28.8 MBytes 24.1 Mbits/sec 194 24.0 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 28.8 MBytes 24.1 Mbits/sec 194 sender [ 5] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. Connecting to host 10.7.1.1, port 5102 [ 5] local 10.7.0.2 port 51299 connected to 10.7.1.1 port 5102 [ 7] local 10.7.0.2 port 48733 connected to 10.7.1.1 port 5102 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 14.1 MBytes 11.8 Mbits/sec 234 12.7 KBytes [ 7] 0.00-10.00 sec 15.0 MBytes 12.6 Mbits/sec 233 11.3 KBytes [SUM] 0.00-10.00 sec 29.1 MBytes 24.4 Mbits/sec 467 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 14.1 MBytes 11.8 Mbits/sec 234 sender [ 5] 0.00-10.01 sec 13.9 MBytes 11.6 Mbits/sec receiver [ 7] 0.00-10.00 sec 15.0 MBytes 12.6 Mbits/sec 233 sender [ 7] 0.00-10.01 sec 14.7 MBytes 12.3 Mbits/sec receiver [SUM] 0.00-10.00 sec 29.1 MBytes 24.4 Mbits/sec 467 sender [SUM] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. cake srchost besteffort ----------------------- qdisc cake 803a: root refcnt 2 bandwidth 50Mbit besteffort srchost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 qdisc cake 803b: root refcnt 2 bandwidth 50Mbit besteffort srchost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 iperf3 -P 1 -B 10.7.0.1 -c 10.7.1.1 -p 5101 iperf3 -P 2 -B 10.7.0.2 -c 10.7.1.1 -p 5102 Connecting to host 10.7.1.1, port 5101 [ 5] local 10.7.0.1 port 41421 connected to 10.7.1.1 port 5101 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 28.6 MBytes 24.0 Mbits/sec 133 12.7 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 28.6 MBytes 24.0 Mbits/sec 133 sender [ 5] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. Connecting to host 10.7.1.1, port 5102 [ 5] local 10.7.0.2 port 60869 connected to 10.7.1.1 port 5102 [ 7] local 10.7.0.2 port 37135 connected to 10.7.1.1 port 5102 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 14.9 MBytes 12.5 Mbits/sec 197 11.3 KBytes [ 7] 0.00-10.00 sec 13.9 MBytes 11.6 Mbits/sec 203 8.48 KBytes [SUM] 0.00-10.00 sec 28.8 MBytes 24.1 Mbits/sec 400 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 14.9 MBytes 12.5 Mbits/sec 197 sender [ 5] 0.00-10.01 sec 14.8 MBytes 12.4 Mbits/sec receiver [ 7] 0.00-10.00 sec 13.9 MBytes 11.6 Mbits/sec 203 sender [ 7] 0.00-10.01 sec 13.8 MBytes 11.5 Mbits/sec receiver [SUM] 0.00-10.00 sec 28.8 MBytes 24.1 Mbits/sec 400 sender [SUM] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. cake dual-srchost besteffort ---------------------------- qdisc cake 803c: root refcnt 2 bandwidth 50Mbit besteffort dual-srchost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 qdisc cake 803d: root refcnt 2 bandwidth 50Mbit besteffort dual-srchost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 iperf3 -P 1 -B 10.7.0.1 -c 10.7.1.1 -p 5101 iperf3 -P 2 -B 10.7.0.2 -c 10.7.1.1 -p 5102 Connecting to host 10.7.1.1, port 5101 [ 5] local 10.7.0.1 port 59395 connected to 10.7.1.1 port 5101 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 28.6 MBytes 24.0 Mbits/sec 130 15.6 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 28.6 MBytes 24.0 Mbits/sec 130 sender [ 5] 0.00-10.00 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. Connecting to host 10.7.1.1, port 5102 [ 5] local 10.7.0.2 port 55247 connected to 10.7.1.1 port 5102 [ 7] local 10.7.0.2 port 53861 connected to 10.7.1.1 port 5102 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 157 8.48 KBytes [ 7] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 159 11.3 KBytes [SUM] 0.00-10.00 sec 28.7 MBytes 24.1 Mbits/sec 316 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 157 sender [ 5] 0.00-10.00 sec 14.3 MBytes 12.0 Mbits/sec receiver [ 7] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 159 sender [ 7] 0.00-10.00 sec 14.3 MBytes 12.0 Mbits/sec receiver [SUM] 0.00-10.00 sec 28.7 MBytes 24.1 Mbits/sec 316 sender [SUM] 0.00-10.00 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. fq_codel flow hash keys dst --------------------------- qdisc htb 1: root refcnt 2 r2q 10 default 0xfffe direct_packets_stat 0 direct_qlen 1000 qdisc fq_codel fffe: parent 1:fffe limit 10240p flows 65536 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn filter protocol all pref 49152 flow chain 0 filter protocol all pref 49152 flow chain 0 handle 0x1 hash keys dst divisor 65536 baseclass fffe:1 qdisc htb 1: root refcnt 2 r2q 10 default 0xfffe direct_packets_stat 0 direct_qlen 1000 qdisc fq_codel fffe: parent 1:fffe limit 10240p flows 65536 quantum 1514 target 5.0ms interval 100.0ms memory_limit 32Mb ecn filter protocol all pref 49152 flow chain 0 filter protocol all pref 49152 flow chain 0 handle 0x1 hash keys dst divisor 65536 baseclass fffe:1 iperf3 -P 1 -B 10.7.0.1 -c 10.7.1.1 -p 5101 iperf3 -P 2 -B 10.7.0.1 -c 10.7.1.2 -p 5102 Connecting to host 10.7.1.1, port 5101 [ 5] local 10.7.0.1 port 34847 connected to 10.7.1.1 port 5101 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 29.8 MBytes 25.0 Mbits/sec 217 18.4 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 29.8 MBytes 25.0 Mbits/sec 217 sender [ 5] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. Connecting to host 10.7.1.2, port 5102 [ 5] local 10.7.0.1 port 53219 connected to 10.7.1.2 port 5102 [ 7] local 10.7.0.1 port 34815 connected to 10.7.1.2 port 5102 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 13.7 MBytes 11.5 Mbits/sec 245 12.7 KBytes [ 7] 0.00-10.00 sec 15.6 MBytes 13.1 Mbits/sec 233 14.1 KBytes [SUM] 0.00-10.00 sec 29.3 MBytes 24.6 Mbits/sec 478 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 13.7 MBytes 11.5 Mbits/sec 245 sender [ 5] 0.00-10.01 sec 13.3 MBytes 11.2 Mbits/sec receiver [ 7] 0.00-10.00 sec 15.6 MBytes 13.1 Mbits/sec 233 sender [ 7] 0.00-10.01 sec 15.2 MBytes 12.7 Mbits/sec receiver [SUM] 0.00-10.00 sec 29.3 MBytes 24.6 Mbits/sec 478 sender [SUM] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. cake dsthost besteffort ----------------------- qdisc cake 803e: root refcnt 2 bandwidth 50Mbit besteffort dsthost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 qdisc cake 803f: root refcnt 2 bandwidth 50Mbit besteffort dsthost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 iperf3 -P 1 -B 10.7.0.1 -c 10.7.1.1 -p 5101 iperf3 -P 2 -B 10.7.0.1 -c 10.7.1.2 -p 5102 Connecting to host 10.7.1.1, port 5101 [ 5] local 10.7.0.1 port 60933 connected to 10.7.1.1 port 5101 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 28.7 MBytes 24.0 Mbits/sec 131 18.4 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 28.7 MBytes 24.0 Mbits/sec 131 sender [ 5] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. Connecting to host 10.7.1.2, port 5102 [ 5] local 10.7.0.1 port 40921 connected to 10.7.1.2 port 5102 [ 7] local 10.7.0.1 port 53673 connected to 10.7.1.2 port 5102 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 14.5 MBytes 12.2 Mbits/sec 191 12.7 KBytes [ 7] 0.00-10.00 sec 14.2 MBytes 11.9 Mbits/sec 192 8.48 KBytes [SUM] 0.00-10.00 sec 28.7 MBytes 24.1 Mbits/sec 383 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 14.5 MBytes 12.2 Mbits/sec 191 sender [ 5] 0.00-10.01 sec 14.4 MBytes 12.1 Mbits/sec receiver [ 7] 0.00-10.00 sec 14.2 MBytes 11.9 Mbits/sec 192 sender [ 7] 0.00-10.01 sec 14.1 MBytes 11.8 Mbits/sec receiver [SUM] 0.00-10.00 sec 28.7 MBytes 24.1 Mbits/sec 383 sender [SUM] 0.00-10.01 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. cake dual-dsthost besteffort ---------------------------- qdisc cake 8040: root refcnt 2 bandwidth 50Mbit besteffort dual-dsthost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 qdisc cake 8041: root refcnt 2 bandwidth 50Mbit besteffort dual-dsthost nonat nowash no-ack-filter split-gso rtt 100.0ms raw overhead 0 iperf3 -P 1 -B 10.7.0.1 -c 10.7.1.1 -p 5101 iperf3 -P 2 -B 10.7.0.1 -c 10.7.1.2 -p 5102 Connecting to host 10.7.1.1, port 5101 [ 5] local 10.7.0.1 port 57133 connected to 10.7.1.1 port 5101 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 28.7 MBytes 24.0 Mbits/sec 132 14.1 KBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 28.7 MBytes 24.0 Mbits/sec 132 sender [ 5] 0.00-10.00 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done. Connecting to host 10.7.1.2, port 5102 [ 5] local 10.7.0.1 port 50723 connected to 10.7.1.2 port 5102 [ 7] local 10.7.0.1 port 44281 connected to 10.7.1.2 port 5102 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 157 8.48 KBytes [ 7] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 163 7.07 KBytes [SUM] 0.00-10.00 sec 28.7 MBytes 24.1 Mbits/sec 320 - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 157 sender [ 5] 0.00-10.00 sec 14.3 MBytes 12.0 Mbits/sec receiver [ 7] 0.00-10.00 sec 14.4 MBytes 12.1 Mbits/sec 163 sender [ 7] 0.00-10.00 sec 14.3 MBytes 12.0 Mbits/sec receiver [SUM] 0.00-10.00 sec 28.7 MBytes 24.1 Mbits/sec 320 sender [SUM] 0.00-10.00 sec 28.5 MBytes 23.9 Mbits/sec receiver iperf Done.