Forum Discussion

LGriffin's avatar
LGriffin
Sophomore
6 years ago

Slow speed and Latency

I think I have everything per instructions, my OS is Ubuntu 18.04 LTS. What ever you need I'll get. This is the Download test at 25mb everything with the laptop identifier is no WIFI; https://testmy.n...
Performance
  • MarkJFine's avatar
    MarkJFine
    5 years ago

    Interesting... Your gateway's provider is Suddenlink (173.219.233.206), which appears to be randomly inserting a 1 second delay... which is not really terrible.

     

    What troubles me is when you open up the wait time to 15 seconds, you have a consistent 10 second delay added between your terminal the satellite, which might indicate some kind of handshaking protocol issue. It's always the second number, not the initial one though... and that's weird.

     

    Are you on Linux natively or running through a VM?

GabeU's avatar
GabeU
Distinguished Professor IV

LGriffin 

 

Ah, Libre.  I actually have it, but I hadn't tried using it  The file itself just says "file" for the type, so I thought maybe it was something I didn't have, though I completely forgot about Libre and it wasn't showing up in my options.  But, it opened just fine using it.  

 

With that said, overall it looks pretty good.  A couple of higher ones, but most of them fit within the expected range.  It took me a couple second to remember what you said about the pauses when I saw those 10,000+ results.  My jaw dropped.  :p  

 

I'm not really sure what to make of the dead hops and where they are in the results, but Mark may.  Dead hops do often appear in trace routes, though, so it may be normal.  Whenever I run a trace route there is nearly always one or two.

MarkJFine's avatar
MarkJFine
Professor
5 years ago

Interesting... Your gateway's provider is Suddenlink (173.219.233.206), which appears to be randomly inserting a 1 second delay... which is not really terrible.

 

What troubles me is when you open up the wait time to 15 seconds, you have a consistent 10 second delay added between your terminal the satellite, which might indicate some kind of handshaking protocol issue. It's always the second number, not the initial one though... and that's weird.

 

Are you on Linux natively or running through a VM?

  • LGriffin's avatar
    LGriffin
    Sophomore
    5 years ago
    IIRC that is about right for a stationary orbit.
  • LGriffin's avatar
    LGriffin
    Sophomore
    5 years ago
    Mark, I'm running Linux/Ubuntu 19.10 native. The gateway is in Ashburn, VA, that doesn't seem efficient, I would think there is plenty of chances for 1 second to slip in. Satellite handshaking protocol that's not the modem but the OS, I've always thought the new versions of Ubuntu 13+ were a little quirky nothing I every put my finger on. Gabe, if everything looks normal, IMO that's an aw shucks, but what do I know. I'll mark this solved. Thanks for the effort, Larry
  • MarkJFine's avatar
    MarkJFine
    Professor
    5 years ago

    There's no gateway (ground station) in Ashburn. They're all west of the Mississippi.

    What's the IPGW ID when you go here?

  • LGriffin's avatar
    LGriffin
    Sophomore
    5 years ago
    What's the IPGW ID: AMA19HNSIGW0102 Forgot to mention I'm in Oakdale, CA just about the middle of California.
  • MarkJFine's avatar
    MarkJFine
    Professor
    5 years ago

    AMA is Amarillo, TX, which kind of makes sense. Suddenlink is based in Tyler.

     

    So, if you're in Oakdale (Modesto), your round trip distance to Satellite, Amarillo is twice 48,766mi. So, minimum possible overall lag is 522.65mS not including processing time.