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Comments on news posted 2008-04-07 14:42:27: Updated!, see below: Network researchers at the University of Colorado have dug more deeply into Comcast's new network management practices. ..

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BabyBear
Keep wise ...with Night-Owl

join:2007-01-11
Rollin.. Rollin.. Rollin...

Maybe Comcast could just do rolling connection blackouts during peak times to save their poor overloaded network.


en102
Canadian, eh?

join:2001-01-26
Valencia, CA
I'm glad to be using indie DSL-Extreme.
I have VERY little issue with the connection as long as AT&T doesn't mess with the line.
--
Canada = Hollywood North


Cabal
Premium
join:2007-01-21
Boston, MA

On the other hand... (thinking more after submitting)

100 SYN packets per second to the same address is what most engineers would consider a SYN flood. Knocking it down is a good thing.
--
Interested in open source engine management for your Subaru?


BabyBear
Keep wise ...with Night-Owl

join:2007-01-11

reply to en102
Re: Rollin.. Rollin.. Rollin...

said by en102 See Profile :

as long as AT&T doesn't mess with the line.
Yeah guess we'll have to see what those so-called 'piracy' filters decide to drop that AT&T is touting. If they screw that up just half of what they are capable of, could make Comcast's data raping look like a 'hands-off' approach.


MrMoody
But the Grinch ... did Not.

join:2002-09-03
Smithfield, NC
reply to BabyBear
Sshh, don't give them ideas.

moonpuppy

join:2000-08-21
Glen Burnie, MD
·Verizon Online DSL

reply to Cabal
Re: On the other hand... (thinking more after submitting)

said by Cabal See Profile :

100 SYN packets per second to the same address is what most engineers would consider a SYN flood. Knocking it down is a good thing.
Except they still do barely anything about the SPAM coming from infected systems on the Comcast network.


bleearg13

join:2001-03-03
Gaithersburg, MD

reply to Cabal
said by Cabal See Profile :

Knocking it down is a good thing.
Except when you have folks with the Fasterfox Add-on for Firefox that can be used to tweak the number of sessions opened per page.


pokesph
It Is Almost Fast
Premium
join:2001-06-25
Sacramento, CA
clubs:
·Comcast

RST the RST's

hmm perhaps that why some 'normally regular' sites are not opening on the first or second try..

When will this madness end?

FCC? not likely

Customers? Most won't notice it or care.
--
Webmaster - Steve
- - - - - - - - - - - -
»www.1-gb.net
»www.ppnstudio.com

nasadude

join:2001-10-05
Rockville, MD
·Comcast

how to control your network in 3 easy steps

1.invent a "bandwidth hogging" bogeyman that can be claimed to be disrupting "regular" customers and using up "scarce" bandwidth

2. put into place equipment that can see what is going across the network and "break" any attempt to use P2P applications

3. after weathering the resultant storm of publicity, quietly implement the full spectrum of "deep packet inspection" capabilities as "regular" network management.

then, just sit back and block, delay or otherwise interfere with any activity that costs the company money or keeps them from making money.


TKJunkMail
Enjoy the sun
Premium
join:2002-03-03
Avalon, NJ
·Sprint Mobile Broa..
·Comcast


1 edit
reply to Cabal
Re: On the other hand... (thinking more after submitting)

said by Cabal See Profile :

100 SYN packets per second to the same address is what most engineers would consider a SYN flood. Knocking it down is a good thing.
Also, I noticed that if I tune the Firefox addon Fasterfox to a high "max connections per server" value, I can occasionally get a "connection was reset" message. Setting it back to default values eliminated the problem. Maybe all Comcast is doing is adhering to RFC specs and banging those sessions that use too high a value.


Check out the comment on the turbo option.
--
My BLOG .. .. Internet News .. .. My Web Page

jester121
Premium
join:2003-08-09
Lake Zurich, IL
·surpasshosting
·ViaTalk

huh?

This seems like a pretty cursory examination to me (7 paragraphs and a few screenshots?)

I haven't noticed any changes in web browsing, file downloads, games, or anything else in my Comcast connection -- if all this nefarious packet tinkering is going on it would certainly be disruptive. Hopefully someone will dig deeper and find out exactly what's going on.


espaeth
Digital Plumber
Premium,MVM
join:2001-04-21
Minneapolis, MN
·voip.ms
·Vitelity VOIP
·Callcentric
·VoiceStick
·ViaTalk
·Comcast
·Embarq

reply to moonpuppy
Re: On the other hand... (thinking more after submitting)

said by moonpuppy See Profile :

Except they still do barely anything about the SPAM coming from infected systems on the Comcast network.
They deploy port 25 block config files to modems on a regular basis. Unfortunately, it's a reactive approach so it's going to be significantly less effective than other providers who have already walled off external port 25 access.


BabyBear
Keep wise ...with Night-Owl

join:2007-01-11

reply to pokesph
Re: RST the RST's

said by pokesph See Profile :

Most won't notice it or care.
And there you have your corporate mantra on screwing your customer (Emperor's Club excluded)!


espaeth
Digital Plumber
Premium,MVM
join:2001-04-21
Minneapolis, MN
·voip.ms
·Vitelity VOIP
·Callcentric
·VoiceStick
·ViaTalk
·Comcast
·Embarq

reply to Cabal
Re: On the other hand... (thinking more after submitting)

said by Cabal See Profile :

100 SYN packets per second to the same address is what most engineers would consider a SYN flood.
Exactly - this will trip DoS mitigation hardware from Cisco, Tipping Point, Checkpoint, Arbor, etc.

What next? If I make several connection attempts to DoD network addresses Comcast dispatches the FBI to throttle my connection by taking my hardware?

The number of unrelated events that we can relate to Comcast throttling are endless - time to get creative people!


FicmanS
Premium
join:2005-01-11
Brownsburg, IN
clubs:
reply to MrMoody
Re: Rollin.. Rollin.. Rollin...

Man you would think the Comcast folks would get tired of seeing all these reports... Maybe it's just me...

yaw

join:2004-05-19
Morgantown, WV
I am tired of it, but what am I going to do? It's comcast, dialup, or no internet. Those are the choices. Comcast knows this, so why should they care?


cableties
Premium
join:2005-01-27
Codename:

"Sir Lagalot"

A New Comcast Network Protocol management!


dadkins
Can you do Blu?
Premium,MVM
join:2003-09-26
Hercules, CA
·Comcast


2 edits
All traffic?

 
 
Uhm... ok.
Why is it that on Blast 16mbps service I still see 17+mbps download and ~2.2mbps upload consistently?

EDIT: Bolded the question so everyone can see that all I did was ask a simple question.
--
Think outside the Fox... Opera


SparkChaser
BURY BECK
Premium
join:2000-06-06
Downingtown, PA
Testing on Saturday

I think they were forging all the packets on Saturday because it looked like nothing was there.


SgtPoopalot

@robertmorris.edu
Seems to affect online gaming

I am a hard core FPS gamer, and I think my intermittant game freezes are because of this as well.
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