Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #177056

Re: The connections resets after some time.

Show all headers | View raw

[Multipart message — attachments visible in raw view] - view raw

Hi again, Henrique.

On 24/01/17 13:37, Henrique de Moraes Holschuh wrote:

>> It's very weird. The cablemodem does not lose Upstream and Downstream
>> synchronization, but nevertheless I see that the established
>> connections are lost (for example, instant messaging, SSH, or HTTP,
>> to mention a few).

> Are you under any sort of stateful packet filtering device (L3+
> firewall, NAT/CGNAT gateway, anti-virus device)?   Inquire your ISP.
>
> Such devices can _and do_ cause this sort of issue when they hit
> resource limits of any sort (such as going over peak capacity of
> connection setup/teardown rate, throughput, etc), or during failover,
> etc.
>
> It could also be caused by link or routing problems in the ISP
> backbone, backhaul, and even in the Internet border itself (ISP to
> ISP eBGP links).
>
> (...)

I thought about doing a test with MTR. Maybe it could provide some
interesting information. This way I left in a later window an ssh
connection to a server running htop, and a window ahead running MTR.

When the window with htop freezes, MTR shows as a cascade failure from
the cablemodem, turning red the hosts from this (192.168.1.1). This
stays red for about three or four seconds and then goes
back to black.

https://ibin.co/3AMfJ9PYCGJ4.png

When any router turns red means 100% packet loss? Because in the
screenshot this value was not in 100 for the cablemodem on that moment.


What do you think? Will it be a problem with the cablemodem?

Kind regards,
Daniel

Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-24 16:00 +0100
  Re: The connections resets after some time. Armando Cerna <armando@cerna.ca> - 2017-01-24 17:00 +0100
    Re: The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-24 17:20 +0100
  Re: The connections resets after some time. Henrique de Moraes Holschuh <hmh@debian.org> - 2017-01-24 17:40 +0100
    Re: The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-24 21:00 +0100
    Re: The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-27 22:30 +0100
      Re: The connections resets after some time. Henrique de Moraes Holschuh <hmh@debian.org> - 2017-01-27 23:20 +0100
        Re: The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-27 23:40 +0100
          Re: The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-28 00:40 +0100
            Re: The connections resets after some time. Henrique de Moraes Holschuh <hmh@debian.org> - 2017-01-28 15:50 +0100
              Re: The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-28 16:50 +0100
                Re: The connections resets after some time. Daniel Bareiro <daniel-listas@gmx.net> - 2017-01-28 19:40 +0100

csiph-web