nanog mailing list archives
Re: Observations of an Internet Middleman (Level3)
From: Christopher Morrow <morrowc.lists () gmail com>
Date: Fri, 16 May 2014 10:17:43 -0400
On Fri, May 16, 2014 at 7:56 AM, Vinny Abello <vinny () abellohome net> wrote:
I think he's questioning why packets from speedtest.comcast.net have CS1 if everything is supposedly equal, and what that is used for. A quick Wireshark shows that to be true right now running to your Plainfield, NJ speedtest site, and my network peers directly with Comcast.
are you measuring inside the (for this) comcast network or after your cable-modem? I recall that the cable-modem(s) often (by docsis config) impose some qos markings on the lan-side of the connection. I think they can do the same on the WAN side for traffic leaving your site to the tubes... but you probably can't measure that as easily as with wireshark on your pc. -chris (also, is there some other equipment between your wiresharker and the cable-modem? could that equipment be re-marking/marking as well?)
Current thread:
- Re: Observations of an Internet Middleman (Level3) (was: RIP Network Neutrality, (continued)
- Re: Observations of an Internet Middleman (Level3) (was: RIP Network Neutrality McElearney, Kevin (May 15)
- Re: Observations of an Internet Middleman (Level3) Scott Berkman (May 15)
- Re: Observations of an Internet Middleman (Level3) McElearney, Kevin (May 15)
- Re: Observations of an Internet Middleman (Level3) Jared Mauch (May 15)
- Re: Observations of an Internet Middleman (Level3) McElearney, Kevin (May 15)
- Re: Observations of an Internet Middleman (Level3) Blake Dunlap (May 15)
- Re: Observations of an Internet Middleman (Level3) Joe Greco (May 15)
- Re: Observations of an Internet Middleman (Level3) arvindersingh (May 15)
- Re: Observations of an Internet Middleman (Level3) Livingood, Jason (May 16)
- Re: Observations of an Internet Middleman (Level3) Vinny Abello (May 16)
- Re: Observations of an Internet Middleman (Level3) Christopher Morrow (May 16)
- Re: Observations of an Internet Middleman (Level3) Livingood, Jason (May 16)
- Re: Observations of an Internet Middleman (Level3) bas (May 18)
- Re: Observations of an Internet Middleman (Level3) Joe Greco (May 15)
- Re: Observations of an Internet Middleman (Level3) Ryan Brooks (May 15)
- Re: Observations of an Internet Middleman (Level3) Paul Ferguson (May 15)
- Re: Observations of an Internet Middleman (Level3) Owen DeLong (May 15)
- Re: Observations of an Internet Middleman (Level3) Paul Ferguson (May 15)
- Re: Observations of an Internet Middleman (Level3) Joe Greco (May 15)
- Re: Observations of an Internet Middleman (Level3) Christopher Morrow (May 15)
- Re: Observations of an Internet Middleman (Level3) Scott Helms (May 15)