Thema "Betreff: Big Packet loss on router - Compal CH7466CE" in Archiv_Internet-Geräte

Big Packet loss on router - Compal CH7466CE

alexnastas1 — Tue, 30 Oct 2018 09:52:11 GMT

Hello,

I'm sorry that it's in english. I moved to Germany one year ago and my German is not so good.

I have big packet loss on the cable router.

Everything is ok when I do a normal ping to the gateway (192.168.44.1)

However, when I send a fast-ping (ping 192.168.44.1 -i 0.1) (10 packets / second), after the packet 20 - i start having very big loss:

147 packets transmitted, 21 packets received, 85.7% packet loss
round-trip min/avg/max/stddev = 2.345/4.507/11.967/2.175 ms

same with MTR:

Alexs-MacBook-Pro-2.local (192.168.44.5)                                                                                                                        2018-10-30T10:45:45+0100
Keys:  Help   Display mode   Restart statistics   Order of fields   quit
                                                                                                                                                Packets               Pings
 Host                                                                                                                                         Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. compalhub.home                                                                                                                            99.5%   194    6.1   6.1   6.1   6.1   0.0
 2. ???
 3. ip5886dd1e.static.kabel-deutschland.de                                                                                                     0.0%   193   10.4  13.7   9.5 169.3  12.3
 4. ip5886c2cd.static.kabel-deutschland.de                                                                                                     0.0%   193   11.1  15.3  10.4 226.0  18.5
 5. ip5886edf8.static.kabel-deutschland.de                                                                                                     0.0%   193   16.1  19.0  15.8 150.7   9.8
 6. ip5886eda1.static.kabel-deutschland.de                                                                                                     0.0%   193   18.0  18.8  13.6 103.4  10.9
 7. 100ge7-2.core1.fra1.he.net                                                                                                                 0.0%   193   14.9  17.8  14.0 206.9  13.9
 8. 100ge1-1.core1.par2.he.net                                                                                                                 0.0%   193   30.5  41.0  23.0 221.5  27.5
 9. 100ge14-1.core1.nyc4.he.net                                                                                                                0.0%   193   96.8 100.6  93.9 312.9  25.7
10. 100ge16-1.core1.sjc2.he.net                                                                                                                1.6%   193  161.1 162.9 157.9 241.0   8.7
11. v1537.core3.fmt2.he.net                                                                                                                    2.1%   193  171.8 179.6 157.3 409.3  44.3

These tests have been done via wired ethernet connection (not Wifi). I have tried disabling the Firewalling function on the router and restarting it. Nothing changes. Whenever I start sending packet bursts - it starts choking and stops forwarding.

Anyone has any idea ?

Thanks in advance

Alex

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Thu, 22 Nov 2018 09:53:26 GMT

Anyone has any idea ? It can't be that I'm the only one to have this issue. Is this a case to request a router change ?

Vodafone support guys,

Please advise on how to proceed

Betreff: Big Packet loss on router - Compal CH7466CE

Jens — Mon, 26 Nov 2018 12:08:33 GMT

Hello alexnastas1,

sorry for the late reply. Did you checked a other ethernet cable? And is it the same on another port?

Regards

Jens

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Mon, 26 Nov 2018 13:40:46 GMT

Hi Jens,

Well, I checked over wifi and wired connection. And I have the exact same behaviour. So I kinda excluded the Cable and Port problem.

But i can check, no problem
Will check in 1h and write back

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Mon, 26 Nov 2018 15:38:31 GMT

Just checked. It's exactly the same behaviour.

ping 192.168.44.1 -i 0.1
PING 192.168.44.1 (192.168.44.1): 56 data bytes
64 bytes from 192.168.44.1: icmp_seq=0 ttl=64 time=6.446 ms
64 bytes from 192.168.44.1: icmp_seq=1 ttl=64 time=5.271 ms
64 bytes from 192.168.44.1: icmp_seq=2 ttl=64 time=4.188 ms
64 bytes from 192.168.44.1: icmp_seq=3 ttl=64 time=5.560 ms
64 bytes from 192.168.44.1: icmp_seq=4 ttl=64 time=3.892 ms
64 bytes from 192.168.44.1: icmp_seq=5 ttl=64 time=4.090 ms
64 bytes from 192.168.44.1: icmp_seq=6 ttl=64 time=4.014 ms
64 bytes from 192.168.44.1: icmp_seq=7 ttl=64 time=4.902 ms
64 bytes from 192.168.44.1: icmp_seq=8 ttl=64 time=5.465 ms
64 bytes from 192.168.44.1: icmp_seq=9 ttl=64 time=4.295 ms
64 bytes from 192.168.44.1: icmp_seq=10 ttl=64 time=5.724 ms
64 bytes from 192.168.44.1: icmp_seq=11 ttl=64 time=6.047 ms
64 bytes from 192.168.44.1: icmp_seq=12 ttl=64 time=7.920 ms
64 bytes from 192.168.44.1: icmp_seq=13 ttl=64 time=9.299 ms
64 bytes from 192.168.44.1: icmp_seq=14 ttl=64 time=5.178 ms
64 bytes from 192.168.44.1: icmp_seq=15 ttl=64 time=7.125 ms
64 bytes from 192.168.44.1: icmp_seq=16 ttl=64 time=5.264 ms
64 bytes from 192.168.44.1: icmp_seq=17 ttl=64 time=4.403 ms
64 bytes from 192.168.44.1: icmp_seq=18 ttl=64 time=6.122 ms
64 bytes from 192.168.44.1: icmp_seq=19 ttl=64 time=4.228 ms
Request timeout for icmp_seq 20
64 bytes from 192.168.44.1: icmp_seq=21 ttl=64 time=4.648 ms
Request timeout for icmp_seq 22
64 bytes from 192.168.44.1: icmp_seq=23 ttl=64 time=10.203 ms
Request timeout for icmp_seq 24
64 bytes from 192.168.44.1: icmp_seq=25 ttl=64 time=5.392 ms
Request timeout for icmp_seq 26
64 bytes from 192.168.44.1: icmp_seq=27 ttl=64 time=9.378 ms
Request timeout for icmp_seq 28
64 bytes from 192.168.44.1: icmp_seq=29 ttl=64 time=11.379 ms
Request timeout for icmp_seq 30
64 bytes from 192.168.44.1: icmp_seq=31 ttl=64 time=4.142 ms
Request timeout for icmp_seq 32
64 bytes from 192.168.44.1: icmp_seq=33 ttl=64 time=6.272 ms
Request timeout for icmp_seq 34
64 bytes from 192.168.44.1: icmp_seq=35 ttl=64 time=4.350 ms
Request timeout for icmp_seq 36
64 bytes from 192.168.44.1: icmp_seq=37 ttl=64 time=3.621 ms
^C
--- 192.168.44.1 ping statistics ---
38 packets transmitted, 29 packets received, 23.7% packet loss
round-trip min/avg/max/stddev = 3.621/5.821/11.379/1.988 ms

Betreff: Big Packet loss on router - Compal CH7466CE

Jens — Tue, 04 Dec 2018 15:54:13 GMT

Hello alexnastas1,

thanks for that. Give me your private data in a pm. 🙂

Regards

Jens

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Thu, 06 Dec 2018 07:22:59 GMT

Hi Jens,

Thanks a lot, I just sent you the details that you asked for.

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Sun, 09 Dec 2018 16:44:45 GMT

Hi Jens,

What comes next for me in this case ?

Will there be an equipment exchange or something ?

It's just that I have some travels planned during December, here and there and would like to plan accordingly

Thanks

Alex

Betreff: Big Packet loss on router - Compal CH7466CE

Jens — Tue, 11 Dec 2018 11:40:32 GMT

Hey Alex,

can't see some problems at the cablerouter. But in this time, i see some issues from the signal to the cablerouter. This may have led to impairments.

Is it still like that now? If yes, please check your port forwarding or make a factory reset.

Regards

Jens

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Tue, 08 Jan 2019 09:04:16 GMT

Hi Jens,

I just did a hard-reset and nothing has changed. This is what the PING output looks like for 100 packets:

 $ ping 192.168.0.1 -i 0.1 -c 100
PING 192.168.0.1 (192.168.0.1): 56 data bytes
64 bytes from 192.168.0.1: icmp_seq=0 ttl=64 time=2.687 ms
64 bytes from 192.168.0.1: icmp_seq=1 ttl=64 time=2.548 ms
64 bytes from 192.168.0.1: icmp_seq=2 ttl=64 time=3.153 ms
64 bytes from 192.168.0.1: icmp_seq=3 ttl=64 time=2.981 ms
64 bytes from 192.168.0.1: icmp_seq=4 ttl=64 time=2.426 ms
64 bytes from 192.168.0.1: icmp_seq=5 ttl=64 time=2.899 ms
64 bytes from 192.168.0.1: icmp_seq=6 ttl=64 time=2.876 ms
64 bytes from 192.168.0.1: icmp_seq=7 ttl=64 time=2.795 ms
64 bytes from 192.168.0.1: icmp_seq=8 ttl=64 time=3.341 ms
64 bytes from 192.168.0.1: icmp_seq=9 ttl=64 time=2.211 ms
64 bytes from 192.168.0.1: icmp_seq=10 ttl=64 time=2.454 ms
64 bytes from 192.168.0.1: icmp_seq=11 ttl=64 time=2.558 ms
64 bytes from 192.168.0.1: icmp_seq=12 ttl=64 time=2.969 ms
64 bytes from 192.168.0.1: icmp_seq=13 ttl=64 time=2.000 ms
64 bytes from 192.168.0.1: icmp_seq=14 ttl=64 time=1.966 ms
64 bytes from 192.168.0.1: icmp_seq=15 ttl=64 time=2.733 ms
64 bytes from 192.168.0.1: icmp_seq=16 ttl=64 time=2.512 ms
64 bytes from 192.168.0.1: icmp_seq=17 ttl=64 time=2.399 ms
64 bytes from 192.168.0.1: icmp_seq=18 ttl=64 time=2.570 ms
64 bytes from 192.168.0.1: icmp_seq=19 ttl=64 time=2.359 ms
Request timeout for icmp_seq 20
64 bytes from 192.168.0.1: icmp_seq=21 ttl=64 time=2.101 ms
Request timeout for icmp_seq 22
Request timeout for icmp_seq 23
Request timeout for icmp_seq 24
Request timeout for icmp_seq 25
Request timeout for icmp_seq 26
Request timeout for icmp_seq 27
Request timeout for icmp_seq 28
Request timeout for icmp_seq 29
Request timeout for icmp_seq 30
Request timeout for icmp_seq 31
Request timeout for icmp_seq 32
Request timeout for icmp_seq 33
Request timeout for icmp_seq 34
Request timeout for icmp_seq 35
Request timeout for icmp_seq 36
Request timeout for icmp_seq 37
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Request timeout for icmp_seq 89
Request timeout for icmp_seq 90
Request timeout for icmp_seq 91
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Request timeout for icmp_seq 93
Request timeout for icmp_seq 94
Request timeout for icmp_seq 95
Request timeout for icmp_seq 96
Request timeout for icmp_seq 97
Request timeout for icmp_seq 98

--- 192.168.0.1 ping statistics ---
100 packets transmitted, 21 packets received, 79.0% packet loss
round-trip min/avg/max/stddev = 1.966/2.597/3.341/0.358 ms

PLEASE, let us take some kind of action on this issue. This has been going on for too long now. I'm ready to provide any kind of details. I'm a network engineer, so I have perfect knowledge of how this works and I can guarantee that everything on my end is well. (cabling, wifi, IP parameters, etc...). I think that the cable modem has an issue. Maybe a firmware update would solve this - if not - it just needs replacing.

I would call the phone support, to take more urgent action on this - but I'm not profecient in German, so this will take me nowhere.

Please, tell me what should be my next steps.

Thank you

Alex

Betreff: Big Packet loss on router - Compal CH7466CE

Jens — Wed, 09 Jan 2019 09:08:51 GMT

Hello Alex,

what is, if you delete the query time?

Regards

Jens

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Wed, 09 Jan 2019 10:23:24 GMT

If I only ping with 1 packet per second, (i.e. the default ping delay) - then there is no packet loss.

But you do understand that the most basic router should be capable of handling bursts of packets. And sending 10 packets/second - is nothing and this should not lead to the router starting to drop the packets after the 20th frame received.

This is definitely not a normal behaviour over a 400 Mbps Internet Link.

I work from home and am continuously using VPN tunnels, sending a lot of traffic back and forth and it's not ok for me to have packet drops at my first hop

Regards

Alex

Betreff: Big Packet loss on router - Compal CH7466CE

alexnastas1 — Wed, 09 Jan 2019 10:49:24 GMT

Ok !

So after some extensive testing I have found out that the link seems to be ok.

It turns out that only bursts with the destination IP of the router itself, get dropped. This must be some kind of a DDoS protection of the router.

If I actually try to ping google or some other public IP, then the results are ok.

sudo ping google.com -i 0.01 -c 5000
64 bytes from 172.217.23.174: icmp_seq=0 ttl=54 time=17.116 ms
64 bytes from 172.217.23.174: icmp_seq=1 ttl=54 time=17.606 ms
64 bytes from 172.217.23.174: icmp_seq=2 ttl=54 time=15.737 ms
64 bytes from 172.217.23.174: icmp_seq=3 ttl=54 time=16.875 ms
....

--- google.com ping statistics ---
5000 packets transmitted, 4999 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 10.419/17.042/43.682/2.936 ms

Only 1 packet lost from 5000 packets, sent with a rate of 100 packet/second. Which is an acceptable loss rate

Jens,

Thanks for your help

The issue may be closed.

Regards

Alex

Betreff: Big Packet loss on router - Compal CH7466CE

Jens — Thu, 10 Jan 2019 11:09:16 GMT

Hello Alex,

sounds nice and thanks for your replay.

Now I'm closing up here.

Regards

Jens