[Novalug] debugging low Internet throughput -- Latency on Sprint's network?
Paul D. Bain
paulbain at pobox.com
Mon Oct 26 17:41:49 EDT 2009
Paul D. Bain wrote:
> covici at ccs.covici.com wrote:
>> OK, these are using mtr, first here is the verizon.
>> Packets Pings
>> Host Loss% Snt Last Avg Best
>> Wrst StDev
>> 1. 66.135.63.3 0.0% 50 0.3 0.3 0.3
>> 0.8 0.1
>> 2. 216.187.124.101 0.0% 50 0.3 0.5 0.3
>> 8.4 1.1
>> 3. 216.187.124.226 0.0% 50 0.3 0.6 0.3
>> 12.6 1.7
>> 4. 10ge-ten1-3.dal-eqx-cor-2.peer1. 0.0% 50 7.6 22.5 7.6
>> 201.0 50.9
>> 5. ge-1-1-0.dal33.ip4.tinet.net 0.0% 50 7.7 8.0 7.6
>> 16.3 1.4
>> 6. xe-8-2-0.nyc30.ip4.tinet.net 0.0% 50 55.6 59.1 55.5
>> 120.0 12.0
>> 7. sl-gw35-nyc-3-0-2.sprintlink.net 0.0% 50 55.6 55.7 55.5
>> 56.4 0.2
>> 8. sl-crs2-nyc-0-10-2-0.sprintlink. 0.0% 50 56.5 56.4 55.8
>> 58.3 0.5
>> 9. 144.232.18.238 16.0% 50 51.7 52.0 51.2
>> 65.8 2.2
>> 10. 0.xe-5-1-0.XL3.NYC4.ALTER.NET 0.0% 50 51.5 60.7 51.2
>> 160.6 24.1
>> 11. 0.so-7-3-0.XT1.NYC8.ALTER.NET 0.0% 50 52.8 52.7 51.8
>> 63.2 1.6
>> 0.so-6-2-0.XT1.NYC9.ALTER.NET
>> 12. 0.so-3-2-0.NY325-BB-RTR1.verizon 10.0% 50 52.6 53.1 52.0
>> 69.0 2.5
>> 0.so-2-0-0.NY325-BB-RTR1.verizon-gni.net
>> 13. so-4-0-0-0.NWRK-BB-RTR1.verizon- 0.0% 50 58.3 58.9 56.3
>> 96.0 7.0
>> 14. 130.81.17.108 0.0% 50 56.3 57.6 54.6
>> 106.9 8.2
>> 15. P14-3.CLPPVA-LCR-01.verizon-gni. 0.0% 50 57.2 58.5 57.0
>> 68.2 1.7
>> 16. L1.CLPPVA-VFTTP-10.verizon-gni.n 0.0% 50 60.0 59.3 58.1
>> 65.5 1.1
>> 17. pool-71-171-100-78.clppva.fios.v 0.0% 50 64.4 63.8 61.9
>> 65.6 0.9
>
> I am not certain whether this link is relevant:
>
> http://www.internetpulse.net/
>
> It indicates congestion on the networks of Cogent and Savvis. AFAICT,
> none of the packets from Verizon cross the network of either of those
> ISP's, Cogent or Savvis.
>
> This second link is likely even less relevant, but interesting
> nevertheless:
>
> http://www.noc.ucla.edu/weather.html
>
> Still less relevant:
>
> http://www.caida.org/home/
OK, after a few minutes of fiddling, I think that I may have discovered
something relevant. Apparently, packets traveling from Sprint's network
to Verizon's network are experiencing considerable latency:
http://www.internetpulse.net/Main.aspx?xAxis=Metric&yAxis=Origin&zAxis=Destination&nAxis=Period
I may be misinterpreting this web application, however, so perhaps
someone more knowledgeable (as to networking trouble-shooting) could
help with interpreting the results. I have forgotten a great deal of my
networking knowledge.
>> And here is the one using DSL .
>> Packets
>> Pings
>> Host
>> Loss% Snt Last Avg Best
>> Wrst StDev
>> 1. 66.135.63.3
>> 0.0% 50 0.3 0.9 0.3
>> 14.4 2.7
>> 2. 216.187.124.109
>> 0.0% 50 0.3 0.4 0.2
>> 1.0 0.2
>> 3. 10ge-ten1-3.dal-eqx-cor-2.peer1.net
>> 0.0% 50 7.6 10.9 7.6
>> 104.9 16.1
>> 4. 10ge-ten2-1.atl-telx-cor-1.peer1.net
>> 0.0% 50 27.1 30.7 27.0
>> 142.0 17.6
>> 5. 10ge-ten1-1.atl-101mar-cor-1.peer1.net
>> 0.0% 50 27.4 28.0 27.2
>> 45.9 3.2
>> 6. 10ge.xe-1-0-0.wdc-eqx-dis-1.peer1.net
>> 0.0% 50 40.8 40.7 40.4
>> 49.3 1.3
>> 7. Ashburn-4948-1.cavtel.com
>> 0.0% 50 41.6 41.7 41.1
>> 44.3 0.5
>> 8. static-76-160-125-45.dsl.cavtel.net
>> 4.0% 50 42.1 46.1 41.8
>> 100.7 12.5
>> 9. static-66-16-64-206.dsl.cavtel.net
>> 0.0% 50 43.6 43.9 43.1
>> 62.5 2.7
>> 10. ccs.covici.com
>> 0.0% 50 74.7 74.3 73.0
>> 79.1 1.3
>>
>> Packets
>> Pings
>> Host
>> Loss%
>> Snt
>> Last
>> Avg
>> Best
>> Wrst
>> StDev
>> 1. 66.135.63.3
>> 0.0%
>> 50
>> 0.3
>> 0.9
>> 0.3
>> 14.4
>> 2.7
>> 2. 216.187.124.109
>> 0.0%
>> 50
>> 0.3
>> 0.4
>> 0.2
>> 1.0
>> 0.2
>> 3. 10ge-ten1-3.dal-eqx-cor-2.peer1.net
>> 0.0%
>> 50
>> 7.6
>> 10.9
>> 7.6
>> 104.9
>> 16.1
>> 4. 10ge-ten2-1.atl-telx-cor-1.peer1.net
>> 0.0%
>> 50
>> 27.1
>> 30.7
>> 27.0
>> 142.0
>> 17.6
>> 5. 10ge-ten1-1.atl-101mar-cor-1.peer1.net
>> 0.0%
>> 50
>> 27.4
>> 28.0
>> 27.2
>> 45.9
>> 3.2
>> 6. 10ge.xe-1-0-0.wdc-eqx-dis-1.peer1.net
>> 0.0%
>> 50
>> 40.8
>> 40.7
>> 40.4
>> 49.3
>> 1.3
>> 7. Ashburn-4948-1.cavtel.com
>> 0.0%
>> 50
>> 41.6
>> 41.7
>> 41.1
>> 44.3
>> 0.5
>> 8. static-76-160-125-45.dsl.cavtel.net
>> 4.0%
>> 50
>> 42.1
>> 46.1
>> 41.8
>> 100.7
>> 12.5
>> 9. static-66-16-64-206.dsl.cavtel.net
>> 0.0%
>> 50
>> 43.6
>> 43.9
>> 43.1
>> 62.5
>> 2.7
>> 10. ccs.covici.com
>> 0.0%
>> 50
>> 74.7
>> 74.3
>> 73.0
>> 79.1
>> 1.3
>>
>>
>>
>> John Franklin <franklin at elfie.org> wrote:
>>
>>> Yes, please post them.
>>>
>>>
>>> On Oct 26, 2009, at 4:52 PM, covici at ccs.covici.com wrote:
>>>
>>>> Yep, and I can include them if you wish. I note that the DSL is
>>>> actually much shorter, the FIOS one goes through some things I don't
>>>> know, but also sprintlink.
>>>>
>>>> John Franklin <franklin at elfie.org> wrote:
>>>>
>>>>> Can you do a traceroute from both the FIOS side and the DSL side?
>>>>>
>>>>> jf
>>>>>
>>>>> On Oct 26, 2009, at 4:46 PM, covici at ccs.covici.com wrote:
>>>>>
>>>>>> Well, the site is 100mb and not heavily trafficked, as I said DSL is
>>>>>> faster than FIOS from that site, although uploading to the site is
>>>>>> at my
>>>>>> full speed.
>>>>>>
>>>>>> greg pryzby <greg at pryzby.org> wrote:
>>>>>>
>>>>>>> wdc.speakeasy.net
>>>>>>> will show what bandwidth you are getting. Then check other cities
>>>>>>> (SF, etc).
>>>>>>>
>>>>>>> If things look pretty good, chances are it is the site you are
>>>>>>> trying to
>>>>>>> hit. It is possible that the site is capped bandwidth or you are
>>>>>>> enjoying
>>>>>>> the benefits of FIOS-- not everyone can serve data fast
>>>>>>> enough.... your fav
>>>>>>> site isn't connected via FIOS or similar or they are slammed
>>>>>>> serving data.
>>>>>>>
>>>>>>> On Mon, Oct 26, 2009 at 4:27 PM, <covici at ccs.covici.com> wrote:
>>>>>>>
>>>>>>>> Hi. I have Fios and I am trying to debug why I am getting slow
>>>>>>>> downloads from several websites -- dsl is faster in those cases!
>>>>>>>> I
>>>>>>>> tried using a program called mtr, but it didn't tell me too much
>>>>>>>> --
>>>>>>>> there was some packet loss between some of the hops, but not so
>>>>>>>> much
>>>>>>>> that it should have caused such a drastic slowdowns. I am
>>>>>>>> thinking that
>>>>>>>> Verizon is messing up, but some sites, like Microsoft, go at full
>>>>>>>> speed,
>>>>>>>> so maybe that was not correct. So the question is, how can I tell
>>>>>>>> who
>>>>>>>> is doing this to me?
>>>>>>>>
>>>>>>>> Thanks.
>>>>>>>>
>>>>>>>> --
>>>>>>>> Your life is like a penny. You're going to lose it. The question
>>>>>>>> is:
>>>>>>>> How do
>>>>>>>> you spend it?
>>>>>>>>
>>>>>>>> John Covici
>>>>>>>> covici at ccs.covici.com
>>>>>>>> _______________________________________________
>>>>>>>> Novalug mailing list
>>>>>>>> Novalug at calypso.tux.org
>>>>>>>> http://calypso.tux.org/mailman/listinfo/novalug
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> greg pryzby greg at pryzby dot org
>>>>>>> http://www.linkedin.com/in/gpryzby
>>>>>>>
>>>>>>> WEB: http://www.RestonArtisTree.com/
>>>>>>> TWTR: gpryzby
>>>>>>> Charles de
>>>>>>> Gaulle<http://www.brainyquote.com/quotes/authors/c/charles_de_gaulle.html
>>>>>>> - "The better I get to know men, the more I find myself loving
>>>>>>> dogs."
>>>>>>>
>>>>>>> ----------------------------------------------------
>>>>>>> Alternatives:
>>>>>>>
>>>>>>> ----------------------------------------------------
>>>>>> --
>>>>>> Your life is like a penny. You're going to lose it. The question
>>>>>> is:
>>>>>> How do
>>>>>> you spend it?
>>>>>>
>>>>>> John Covici
>>>>>> covici at ccs.covici.com
>>>>>> _______________________________________________
>>>>>> Novalug mailing list
>>>>>> Novalug at calypso.tux.org
>>>>>> http://calypso.tux.org/mailman/listinfo/novalug
>>>>> --
>>>>> John Franklin
>>>>> franklin at elfie.org
>>>>> ICBM: 39º 01' 58.4"N 77º 24' 49.6"W Z+84m
>>>>>
>>>> --
>>>> Your life is like a penny. You're going to lose it. The question is:
>>>> How do
>>>> you spend it?
>>>>
>>>> John Covici
>>>> covici at ccs.covici.com
>>> --
>>> John Franklin
>>> franklin at elfie.org
>>> ICBM: 39º 01' 58.4"N 77º 24' 49.6"W Z+84m
>>>
>
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