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I'm experiencing high packet loss with large packets (~1400 bytes) to particular hosts (i.e. not everyone but consistently the same group). I have a few wireshark captures showing a lot of TCP retransmissions and missing packets to sites like news.ycombinator.com and dmtf.org for example as well as a DigitalOcean VPS that I have.
Here's an example traceroute and ping demonstrating the packet loss between my VPS and home network as well as working and non-working website traffic from wireshark
From VPS:
root@host:~# ping 76.122.108.97 -s 1400
PING 76.122.108.97 (76.122.108.97) 1400(1428) bytes of data.
1408 bytes from 76.122.108.97: icmp_seq=4 ttl=51 time=68.8 ms
1408 bytes from 76.122.108.97: icmp_seq=5 ttl=51 time=68.8 ms
1408 bytes from 76.122.108.97: icmp_seq=8 ttl=51 time=68.3 ms
1408 bytes from 76.122.108.97: icmp_seq=11 ttl=51 time=68.7 ms
1408 bytes from 76.122.108.97: icmp_seq=13 ttl=51 time=69.0 ms
^C
--- 76.122.108.97 ping statistics ---
17 packets transmitted, 5 received, 70% packet loss, time 16201ms
rtt min/avg/max/mdev = 68.331/68.768/69.044/0.237 ms
root@host:~# traceroute 76.122.108.97
traceroute to 76.122.108.97 (76.122.108.97), 30 hops max, 60 byte packets
1 64.227.48.253 (64.227.48.253) 1.646 ms 1.783 ms 64.227.48.254 (64.227.48.254) 1.064 ms
2 138.197.249.146 (138.197.249.146) 19.528 ms 138.197.249.156 (138.197.249.156) 1.251 ms 138.197.249.150 (138.197.249.150) 1.237 ms
3 138.197.249.188 (138.197.249.188) 2.327 ms 138.197.249.176 (138.197.249.176) 1.046 ms 1.040 ms
4 * * *
5 ae-2-3601.edge6.Atlanta2.Level3.net (4.69.219.150) 59.759 ms 59.765 ms 59.755 ms
6 ComcastRegional-level3-200G.Atlanta2.Level3.net (4.68.38.110) 60.462 ms 60.186 ms 60.098 ms
7 96.108.116.46 (96.108.116.46) 61.103 ms 61.122 ms 61.109 ms
8 ae2-acr11.a2atlanta.ga.atlanta.comcast.net (96.110.204.158) 60.488 ms 60.269 ms 60.490 ms
9 c-76-122-108-97.hsd1.ga.comcast.net (76.122.108.97) 72.564 ms 68.640 ms 68.649 ms
root@host:~# ping 76.122.108.97 -s 50
PING 76.122.108.97 (76.122.108.97) 50(78) bytes of data.
58 bytes from 76.122.108.97: icmp_seq=3 ttl=51 time=67.7 ms
58 bytes from 76.122.108.97: icmp_seq=4 ttl=51 time=75.5 ms
58 bytes from 76.122.108.97: icmp_seq=6 ttl=51 time=77.2 ms
58 bytes from 76.122.108.97: icmp_seq=7 ttl=51 time=67.6 ms
58 bytes from 76.122.108.97: icmp_seq=8 ttl=51 time=67.3 ms
58 bytes from 76.122.108.97: icmp_seq=9 ttl=51 time=67.2 ms
58 bytes from 76.122.108.97: icmp_seq=10 ttl=51 time=67.1 ms
58 bytes from 76.122.108.97: icmp_seq=11 ttl=51 time=68.6 ms
58 bytes from 76.122.108.97: icmp_seq=12 ttl=51 time=67.2 ms
58 bytes from 76.122.108.97: icmp_seq=13 ttl=51 time=68.2 ms
58 bytes from 76.122.108.97: icmp_seq=14 ttl=51 time=67.5 ms
58 bytes from 76.122.108.97: icmp_seq=15 ttl=51 time=67.6 ms
58 bytes from 76.122.108.97: icmp_seq=16 ttl=51 time=67.5 ms
58 bytes from 76.122.108.97: icmp_seq=17 ttl=51 time=67.9 ms
58 bytes from 76.122.108.97: icmp_seq=18 ttl=51 time=67.3 ms
^C
--- 76.122.108.97 ping statistics ---
18 packets transmitted, 15 received, 16% packet loss, time 17050ms
rtt min/avg/max/mdev = 67.159/68.817/77.250/3.032 ms
From Home
PS C:\Users\matth> ping 64.227.53.198 -l 1400 -t
Pinging 64.227.53.198 with 1400 bytes of data:
Request timed out.
Reply from 64.227.53.198: bytes=1400 time=71ms TTL=55
Request timed out.
Request timed out.
Reply from 64.227.53.198: bytes=1400 time=70ms TTL=55
Request timed out.
Reply from 64.227.53.198: bytes=1400 time=70ms TTL=55
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 64.227.53.198: bytes=1400 time=70ms TTL=55
Request timed out.
Ping statistics for 64.227.53.198:
Packets: Sent = 13, Received = 4, Lost = 9 (69% loss),
Approximate round trip times in milli-seconds:
Minimum = 70ms, Maximum = 71ms, Average = 70ms
Control-C
PS C:\Users\matth> tracert 64.227.53.198
Tracing route to 64.227.53.198 over a maximum of 30 hops
1 2 ms 1 ms 1 ms LEDE.lan [192.168.1.1]
2 10 ms 8 ms 8 ms 96.120.4.225
3 34 ms 9 ms * ae44-rur102.a2atlanta.ga.atlanta.comcast.net [96.110.204.157]
4 10 ms 9 ms 10 ms 96.108.150.213
5 13 ms 12 ms 11 ms 96.108.116.41
6 13 ms 11 ms 9 ms be-33041-cs04.56marietta.ga.ibone.comcast.net [96.110.43.77]
7 9 ms 9 ms 9 ms be-2401-pe01.56marietta.ga.ibone.comcast.net [96.110.32.98]
8 * * * Request timed out.
9 29 ms 27 ms 27 ms dls-b22-link.telia.net [62.115.120.113]
10 56 ms 57 ms 54 ms las-b24-link.telia.net [62.115.118.247]
11 86 ms 80 ms 63 ms palo-b22-link.telia.net [62.115.119.90]
12 69 ms 69 ms 69 ms digitalocean-ic-336107-palo-b22.c.telia.net [213.248.99.163]
13 * * * Request timed out.
14 * * * Request timed out.
15 71 ms 68 ms 68 ms 64.227.53.198
Trace complete.
Wireshark Capture of working website (gatech.edu) then of non-working website (news.ycombinator.com)
