networking question

[Stephen Partington]

I know for a fact I have a 1gbps connection.

And o e of the issues I ran into is that the ethernet connection between
the edge device and my ONT would occasionally freak out and drop to
100mbps.

I ha e also found that not all edge devices are created equal. I have had
several devices that at one time were great. We're unable to support full
gig internet. For testing I have frequently used the Google fiber servers
to verify speed.


On Wed, Sep 5, 2018, 9:35 PM Michael Butash <michael at butash.net> wrote:

> How exactly are you testing your connection?  That's a relevant bit
> regarding networking.  If testing in phoenix, test a LA California-based
> server, as most cox residential egresses there.  I like Race Communications
> out of LA to test against on speedtest.net.  Anything else hits
> interstate transit, more than cox already does dumping you out LA peering
> points.
>
> Your host nic can handle line rate, and so can the kernel in most cases,
> really the question is your transport and the applications using it.
>
> If using a speedtest.net sort of test, then ymmv with the server you're
> testing against..  If dealing with comcast, I don't know their peering
> infrastructure as much as cox's, but they're not typically local, and
> probably transport you to another state for egress.  This isn't much
> different from cox, they dump you out LA or Dallas, usually the former than
> latter, only cbs and other direct peering relations egress actually in
> phoenix.  Post a traceroute to 8.8.8.8 if you want some recommendations to
> test against for real world usage.
>
> Look at your modem levels too.  You can hit your moto/arris modem on
> http://192.168.100.1 url to see your modem levels, this has existed since
> 2000 or so with the advent of docsis and motorola not sucking.  SNR, RX/TX
> power are what you want to look at, and plenty of wikipedias about docsis
> to explain tolerances.  If not within tolerance, call the provider to start
> digging and replace coax as necessary.
>
> Every few years my cable gets crappy, and I have to call them to help me
> dig up and replace bits of either the yard or house to replace.  Arizona is
> hell on coax with suck-out and other syndromes of extreme heat-based
> dysfunction.  Expect your levels to go to hell every 3-4 years in arizona
> with coax.
>
> HTH!
>
> -mb
>
> On Wed, Sep 5, 2018 at 1:12 PM, Jim <jim.nantz15 at comcast.net> wrote:
>
>> Back in June comcast raised my connection speed to 150Mbps.  Two weeks
>> ago it went back down to 100.  I called to complain and was told I was
>> supposed to be  getting 100Mbps.  I finally got someone to admit that my
>> connection speed should be 150, but I'm still getting 100.
>>
>> I didn't make any changes to the network, but something could have gotten
>> changed.  Is there anything i can look in network settings to determine if
>> something could be tweaked for a faster connection?
>>
>> I have an Arris SB6141 modem and an ASUS RT-ACRH13 gigabit router.  The
>> modem (SB6141) supports speeds up to 343Mbps down.  KDE's network manager
>> shows the MTU setting is set to Automatic and the box is checked to allow
>> auto negotiation.
>>
>> I did install Kubuntu 18 after the increase to 150Mbps.  The speed did
>> not drop until a month or so after Kubuntu 18 was installed.
>>
>> Since the installation, the ethernet connection is no longer called
>> eth0.  Now it's called enp4s1.  Is that some new way of naming network
>> devices?  I don't really care what it calls the parts as long as they
>> work.  I can still use netwatch, but I have to give it the enp4s1 string as
>> it expects eth0 unless  told differently.
>>
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