I need to save this, in case I need to explain to people why #bufferbloat is bad. Hellenic Telecom, I'm looking to you for transit, not warehousing.
woody$ traceroute 9.9.9.9
traceroute to 9.9.9.9 (9.9.9.9), 64 hops max, 40 byte packets
1 192.168.178.1 (192.168.178.1) 39.414 ms 3.798 ms 2.919 ms
2 172.22.1.1 (172.22.1.1) 8.043 ms 13.366 ms 20.248 ms
3 195.167.84.129 (195.167.84.129) 8.449 ms 13.196 ms 7.881 ms
4 109.8.205.212.static.otenet.gr (212.205.8.109) 8.584 ms 13.657 ms 13.341 ms
5 79.128.234.220 (79.128.234.220) 14.570 ms 8.442 ms 8.604 ms
6 nyma-asr99b-chan-asr99b.backbone.otenet.net (79.128.234.157) 15.412 ms reth-asr9ka-hera-asr9ka.backbone.otenet.net (79.128.230.22) 15.880 ms
79.128.224.185 (79.128.224.185) 22.141 ms
7 79.128.226.31 (79.128.226.31) 16.966 ms
79.128.226.116 (79.128.226.116) 31.696 ms
79.128.226.19 (79.128.226.19) 14.142 ms
8 79.128.227.219 (79.128.227.219) 15.292 ms
79.128.226.19 (79.128.226.19) 14.912 ms
79.128.226.243 (79.128.226.243) 14.118 ms
9 dns9.quad9.net (9.9.9.9) 14.841 ms 14.971 ms 14.495 ms
woody$ ping 9.9.9.9
PING 9.9.9.9 (9.9.9.9): 56 data bytes
...some lines omitted...
64 bytes from 9.9.9.9: icmp_seq=30 ttl=56 time=8471.102 ms
64 bytes from 9.9.9.9: icmp_seq=31 ttl=56 time=9622.876 ms
64 bytes from 9.9.9.9: icmp_seq=32 ttl=56 time=11320.716 ms
64 bytes from 9.9.9.9: icmp_seq=33 ttl=56 time=12535.773 ms
64 bytes from 9.9.9.9: icmp_seq=34 ttl=56 time=13479.652 ms
64 bytes from 9.9.9.9: icmp_seq=35 ttl=56 time=14776.024 ms
64 bytes from 9.9.9.9: icmp_seq=36 ttl=56 time=15775.719 ms
64 bytes from 9.9.9.9: icmp_seq=37 ttl=56 time=16997.679 ms
64 bytes from 9.9.9.9: icmp_seq=38 ttl=56 time=16974.287 ms
64 bytes from 9.9.9.9: icmp_seq=39 ttl=56 time=18149.947 ms
Request timeout for icmp_seq 40
64 bytes from 9.9.9.9: icmp_seq=41 ttl=56 time=18433.061 ms
64 bytes from 9.9.9.9: icmp_seq=42 ttl=56 time=18977.357 ms
64 bytes from 9.9.9.9: icmp_seq=43 ttl=56 time=20256.393 ms
64 bytes from 9.9.9.9: icmp_seq=44 ttl=56 time=21846.190 ms
64 bytes from 9.9.9.9: icmp_seq=45 ttl=56 time=22274.975 ms
64 bytes from 9.9.9.9: icmp_seq=46 ttl=56 time=21926.807 ms
64 bytes from 9.9.9.9: icmp_seq=47 ttl=56 time=21956.825 ms
64 bytes from 9.9.9.9: icmp_seq=48 ttl=56 time=22866.450 ms
64 bytes from 9.9.9.9: icmp_seq=49 ttl=56 time=22764.079 ms
64 bytes from 9.9.9.9: icmp_seq=50 ttl=56 time=22932.184 ms
64 bytes from 9.9.9.9: icmp_seq=51 ttl=56 time=22751.198 ms
64 bytes from 9.9.9.9: icmp_seq=52 ttl=56 time=23050.991 ms
64 bytes from 9.9.9.9: icmp_seq=53 ttl=56 time=23449.608 ms
64 bytes from 9.9.9.9: icmp_seq=54 ttl=56 time=24239.924 ms
Request timeout for icmp_seq 55
64 bytes from 9.9.9.9: icmp_seq=56 ttl=56 time=25671.654 ms
Request timeout for icmp_seq 57
Request timeout for icmp_seq 58
Request timeout for icmp_seq 59
64 bytes from 9.9.9.9: icmp_seq=60 ttl=56 time=22470.379 ms
64 bytes from 9.9.9.9: icmp_seq=61 ttl=56 time=22938.439 ms
64 bytes from 9.9.9.9: icmp_seq=62 ttl=56 time=23631.650 ms
64 bytes from 9.9.9.9: icmp_seq=63 ttl=56 time=24062.791 ms
64 bytes from 9.9.9.9: icmp_seq=64 ttl=56 time=23723.215 ms
64 bytes from 9.9.9.9: icmp_seq=65 ttl=56 time=23585.544 ms
64 bytes from 9.9.9.9: icmp_seq=66 ttl=56 time=23802.193 ms
64 bytes from 9.9.9.9: icmp_seq=67 ttl=56 time=24429.611 ms
64 bytes from 9.9.9.9: icmp_seq=68 ttl=56 time=24479.928 ms
64 bytes from 9.9.9.9: icmp_seq=69 ttl=56 time=24351.231 ms
64 bytes from 9.9.9.9: icmp_seq=70 ttl=56 time=24210.547 ms
Request timeout for icmp_seq 71
Request timeout for icmp_seq 72
64 bytes from 9.9.9.9: icmp_seq=73 ttl=56 time=23917.609 ms
64 bytes from 9.9.9.9: icmp_seq=74 ttl=56 time=24481.414 ms
64 bytes from 9.9.9.9: icmp_seq=75 ttl=56 time=25157.445 ms
64 bytes from 9.9.9.9: icmp_seq=76 ttl=56 time=26257.238 ms
64 bytes from 9.9.9.9: icmp_seq=77 ttl=56 time=26989.712 ms
64 bytes from 9.9.9.9: icmp_seq=78 ttl=56 time=27329.260 ms
64 bytes from 9.9.9.9: icmp_seq=79 ttl=56 time=28227.827 ms
64 bytes from 9.9.9.9: icmp_seq=80 ttl=56 time=28909.874 ms
64 bytes from 9.9.9.9: icmp_seq=81 ttl=56 time=29858.149 ms
64 bytes from 9.9.9.9: icmp_seq=82 ttl=56 time=30297.285 ms
64 bytes from 9.9.9.9: icmp_seq=83 ttl=56 time=31001.889 ms
64 bytes from 9.9.9.9: icmp_seq=84 ttl=56 time=30927.453 ms
64 bytes from 9.9.9.9: icmp_seq=85 ttl=56 time=30136.748 ms
64 bytes from 9.9.9.9: icmp_seq=86 ttl=56 time=29231.370 ms
64 bytes from 9.9.9.9: icmp_seq=87 ttl=56 time=28358.744 ms
64 bytes from 9.9.9.9: icmp_seq=88 ttl=56 time=27409.612 ms
64 bytes from 9.9.9.9: icmp_seq=89 ttl=56 time=26482.402 ms
64 bytes from 9.9.9.9: icmp_seq=90 ttl=56 time=25536.722 ms
...some lines omitted...
^C
--- 9.9.9.9 ping statistics ---
136 packets transmitted, 124 packets received, 8.8% packet loss
round-trip min/avg/max/stddev = 15.933/13743.625/31001.889/10126.308 ms
woody$
I listened to this episode twice. The book mentioned is available on the O'Reilly Learning platform. I went through the first tutorial "flappy dragon" already.
LibreQoS project is quite interesting. I restart my router once every month due to buffer bloat. It's great to see that there is a real solution to this problem and it is free software.