RE: ISPs slowing P2P traffic...

["Frank Bulk - iNAME" <frnkblk () iname com>]

I'm not aware of any modern cable modems that operate at 10 Mbps.  Not that
they couldn't set it at that speed, but AFAIK, they're all 10/100 ports.

Frank

-----Original Message-----
From: Blake Pfankuch [mailto:epic59 () shenrons-house com] 
Sent: Wednesday, January 09, 2008 9:47 PM
To: frnkblk () iname com; joe () oregon uoregon edu; jared () puck nether net;
nanog () merit edu
Subject: RE: ISPs slowing P2P traffic...

What about Comcast selling their new speed burst thing that allows up to
12 mbit, but also providing modems with a 10mbit Ethernet port.  They
have been doing that around here for quite a while...

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Frank Bulk - iNAME
Sent: Wednesday, January 09, 2008 8:12 PM
To: joe () oregon uoregon edu; jared () puck nether net; nanog () merit edu
Subject: RE: ISPs slowing P2P traffic...


Without being totally conspiratorial, do you think the network engineers
at
these service providers know that that their residential subscribers'
PCs
and links aren't tuned for high speeds, and so can feel fairly confident
in
selling these speeds knowing they won't be used?

Frank

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Joe
St Sauver
Sent: Wednesday, January 09, 2008 4:15 PM
To: jared () puck nether net
Cc: nanog () merit edu
Subject: Re: ISPs slowing P2P traffic...

Jared mentioned:

#       We'll see what happens, and how the 160Mb/s DOCSIS 3.0
connections
#and infrastructure to support it pan out on the comcast side..

There may be comparatively little difference from what you see today,
largely because most hosts still have stacks which are poorly tuned by
default, or host throughput is limited by some other device in the path
(such as a broadband "router") which acts by default as the constricting
link in the chain, or the application itself isn't written to take full
advantage of higher speed wide area connections.

Depending on your point of view, all those poorly tuned hosts are either
a
incredible PITA, or the only thing that's keeping the boat above water.

If you believe the latter point of view, tuning guides such as
http://www.psc.edu/networking/projects/tcptune/ and diagnostic tools
like NDT (e.g., see http://miranda.ctd.anl.gov:7123/ ) are incredibly
seditious resources. :-)

Regards,

Joe St Sauver (joe () oregon uoregon edu)

Disclaimer: all opinions strictly my own.