republican-creole
Search:  

 
 
   All ForumsHot TopicsGallery






how-to block ads


 
Forums » US Cable Support » Comcast » Comcast HSI » Comcast is using Sandvine to manage P2P Connections
Search Topic:
Share Topic:
RSS topic:
toggle:
flat / full
normal / watch
Posting:
[Spam] Comcast reporting spam from my IP »
« [CDV] Outgoing Static on calls  
page: 1 · 2 · 3 · 4
AuthorAll Replies


hobgoblin
Sortof Agoblin
Premium
join:2001-11-25
Orchard Park, NY
clubs:

reply to funchords
Re: Sandvine's MSO Case Study-Reasonable Network Management?

"Sandvine published a case study that recommended throttling P2P uploads by 98%!! Is this reasonable network management?"

I don't see that statement at all.

If P2P is taking up 94% of the UPSTREAM bandwidth then I believe that any reduction in that is reasonable.

Hob
--
"A foolish consistency is the hobgoblin of little minds."
- Ralph Waldo Emerson


DishCT

@comcast.net

If you read the actual "advertisement" they are not claiming P2P is taking up 94% of upstream bandwidth. Their limited study of a few routers is just that - Limited.

Bottom line is what they are doing is wrong. It's a total violation of net nuetrality and completely interferes with the users right to actually utilize the speeds and bandwidth they claimed were available when it was sold to them. Users have always known that their neighbors use may effect speeds. What they didn't know was that arbitrary rationaing based upon programs or protocols Comcast may or may not approve of would shut their connections down to a crawl.

They lied about this manipulation (shutting of connections) and their advertising contradicts their behavior, plain and simple. If you want people to pay based strictly upon usage, then implement such a policy. Stop discriminating against a certain class of user and while serving your own interests, thwarting legitimate competition on the net and degrading the level of service I was promised would be better than DSL.


hobgoblin
Sortof Agoblin
Premium
join:2001-11-25
Orchard Park, NY
clubs:

"If you read the actual "advertisement" they are not claiming P2P is taking up 94% of upstream bandwidth. Their limited study of a few routers is just that - Limited."

Six UBR's....maybe 50k users

"It's a total violation of net nuetrality "

Not..they are treating all P2P traffic the same

"Users have always known that their neighbors use may effect speeds."

They may know...but they also may hate it.

"their advertising contradicts their behavior, plain and simple. "

Can we have a link?

"degrading the level of service I was promised would be better than DSL."

Their was a promise you could share files all over the world better than DSL? really.

Serious Question.

What would YOU do if you owned Comcast..or any other ISP?
How would you manage this sort of problem?
Remember this is a business not a charity and you need to satisfy shareholders.

Hob
--
"A foolish consistency is the hobgoblin of little minds."
- Ralph Waldo Emerson


Comcastrated

@comcast.net

"What would I do?"

I would communicate exactly what I am doing with my customers.
If there is a usage cap I would state it.
If I block specific types of traffic I would state it.

I would allow users to use the advertised bandwidth for any purpose they see fit within the confines of the TOS. I would then apply boost or other speed enhancements to selected traffic. I would advertise this as speed boost "Enhanced web browsing speed. Get 6/1.5mb with up to 20/2mb Enhanced web speed"

or

If it just does not work from an economical perspective. I would change the TOS to specifically exclude the use of P2P software. I would then block it (I would not do this using RST packets as I believe this to be illegal) I would only allow specific ports. I would also offer an enhanced tier or make the top tier P2P friendly. The lower tier would probably be a marketing nightmare. But they are trying to offer a limited service while selling an unlimited service. So they should come clean.

Comcasts service really is not an internet service when they start blocking certain protocols in any way including forged packets. The internet is based on (RFCs) like the TCP/IP protocol and numerous routing standards. When you start forging packets you are no longer RFC compliant. It then becomes web access and any other services they endorse. But calling it internet service is no longer accurate.

The internet is based on TCP/IP and the routing standards defined in RFC documents like RFC1058, etc.... This includes multiple types of communications based on packets like TCP, UDP, ICPM, etc... Adhering to the specifications based on RFCs has been since inception in the 1970s how one gets on the internet and becomes a part of it. The definition of the internet has been based for decades on RFC compliance and must continue to be based on compliance.

I will not say that comcast can not do what they want with their network. They can do what they want. However they have to do it while complying legally with all of the laws and regulations. Right now they are not. Hence all of the investigations. The FTC should have quite an interest in their misleading advertising. The FCC should be interested in their intentional blocking of communications. The FBI should be interested in their interstate impersonation and forgery of electronic communication. I believe there are fairly strong laws against impersonating a party across electronic communications. This makes it illegal to call someone and claim to be from their bank etc. But I believe it is applicable in this case.

NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC

said by Comcastrated :

I would allow users to use the advertised bandwidth for any purpose they see fit within the confines of the TOS.
Would that include the part of the Terms of Use which states that subscribers are prohibited from providing network content to anybody outside of the Premises Local Area Network?
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


telcolackey
The Truth? You can't handle the truth

join:2007-04-06
Death Valley, CA

reply to Comcastrated
said by Comcastrated :

If it just does not work from an economical perspective. I would change the TOS to specifically exclude the use of P2P software. I would then block it
How do you really block an application that is designed to "hide"? Why do you think this application was designed this way?

I think broadband needs to go to a utility model and allow for all of this traffic, but charge people if they want to open the throttle full and share the "utility" (Comcast sold them) with the world. I think people will be less generous with bits if they have to pay the true cost of p2p.


Mdoc
Ehh... munch munch... what's up, Doc?

join:2007-03-27
Sterling, VA

reply to hobgoblin
said by hobgoblin See Profile :

Remember this is a business not a charity and you need to satisfy shareholders.

Hob
Why? Do they understand engineering disciplines?


hobgoblin
Sortof Agoblin
Premium
join:2001-11-25
Orchard Park, NY
clubs:

"Why? Do they understand engineering disciplines?"

They dont need too, however they own the company and they are in it to make a profit.

What this site often thinks is that all ISP's are charities. I was hoping people would understand that.

Hob
--
"A foolish consistency is the hobgoblin of little minds."
- Ralph Waldo Emerson

NormanS
Premium,MVM
join:2001-02-14
San Jose, CA
·Pacific Bell - SBC

reply to Mdoc
said by Mdoc See Profile :

Why? Do they understand engineering disciplines?
Do they have to? When I worked as a tech for Hewlett Packard, I had to consider the profitability of my actions, as well as the technical disciplines. If I couldn't repair a $75 assembly in under an hour, it wouldn't matter if it was repairable, or not; it wasn't profitable.
--
Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum


funchords
Hello
Premium,MVM
join:2001-03-11
Washington, DC
·Verizon Online DSL
·Skype

reply to NormanS
said by NormanS See Profile :

said by Comcastrated :

I would allow users to use the advertised bandwidth for any purpose they see fit within the confines of the TOS.
Would that include the part of the Terms of Use which states that subscribers are prohibited from providing network content to anybody outside of the Premises Local Area Network?
If there is a TOS that says that (and I'm sure that there is, as I've seen that quoted before, somewhere), then it's really not Internet service.

That restriction would prohibit the user from downloading a file from one site (thus it is 'network content'), and then subsequently uploading it to another (thus it is 'outside of the LAN').

Both Cox and Comcast spokespersons have said in the press that P2P traffic is not prohibited on their networks. So the point may be moot (so far).
--
Robb Topolski -= funchords.com =- Hillsboro, Oregon USA
Are you affected by Comcast's RST forging? How to test it! -or- Read my original report.


telcolackey
The Truth? You can't handle the truth

join:2007-04-06
Death Valley, CA


1 edit
The specific section is as follows:
run programs, equipment, or servers from the Premises that provide network content or any other services to anyone outside of your Premises LAN (Local Area Network), also commonly referred to as public services or servers. Examples of prohibited services and servers include, but are not limited to, e-mail, Web hosting, file sharing, and proxy services and servers;
I've highlighted what I believe is being interpreted as the ToS elements related to P2P


funchords
Hello
Premium,MVM
join:2001-03-11
Washington, DC
·Verizon Online DSL
·Skype

reply to telcolackey
said by telcolackey See Profile :

I think broadband needs to go to a utility model and allow for all of this traffic, but charge people if they want to open the throttle full and share the "utility" (Comcast sold them) with the world. I think people will be less generous with bits if they have to pay the true cost of p2p.
It's rare that I find myself agreeing with you, but I agree with you.

Cable companies are suffering because they built their networks on a web-only usage model. It was an understandable mistake, because in the late 90s when they created their assumptions, the WWW was ramping up exponentially. But if they looked a few years before that, they would see what they are seeing now -- users want to be able to upload and download.

So (to Hobgoblin, who asked a good question), if I owned an ISP and had this problem, I would add the following to the Help files:

Peer-to-Peer (P2P) file-transfer programs may impact the Comcast HSI service when used at high speeds. To ensure a good experience for everyone, adjust such background programs to upload speeds of 24 kB/s and download speeds of 128 kB/s.

If a customer does overdo it, the Comcast Abuse Dept now has something solid to tell them without having to name a "cap": use these settings to avoid any more phone calls from us.

(If they use those settings and manage to maintain those download speeds 24*7*365, then they do consume a lot of bandwidth. However, since it's DOCSIS, it's the upload bandwidth that is the constraint. The download limit may not be needed, but it's there if it is.)

Thoughts?
--
Robb Topolski -= funchords.com =- Hillsboro, Oregon USA
Are you affected by Comcast's RST forging? How to test it! -or- Read my original report.


telcolackey
The Truth? You can't handle the truth

join:2007-04-06
Death Valley, CA


1 edit
said by funchords See Profile :

It's rare that I find myself agreeing with you, but I agree with you.

Cable companies are suffering because they built their networks on a web-only usage model. It was an understandable mistake, because in the late 90s when they created their assumptions, the WWW was ramping up exponentially. But if they looked a few years before that, they would see what they are seeing now -- users want to be able to upload and download.
You finally see the light and then head to the dark side.

The problem has less to do with HFC and more to do with 1) speed increases, 2) p2p and 3) Internet economics. FiOS and others also have the same economic challenges (although they won't admit it yet as their product is a "loss leader").

I tried to start a discussion on this, but the thread was locked. Here are my points:
The P2P and bandwidth debates typically are more emotional than logical. People will use corner cases of usage, their interpretation of net-neutrality, state laws, 5+ year old ad campaigns and ToS. Let me try and put some logic around the issue as I see it.

Residential Broadband service (DSL, Cable and even FiOS) speeds have been increasing over the years due to the fact that the average bandwidth cost allows for an oversubscription model which has been economical. Although the vast majority of users get this speed when they need it, they don’t run it 7x24 at the max rate and hence it doesn't cost more than they pay. This is why the business model works.

P2P (bandwidth sharing) in general changes this and operates more like running hosting services or CDNs from home. It also transfers a content $$ source (paying for bits) from the content owners (Apple, Yahoo, Google, etc) to residential users. Today, these companies pay an ISP to send the traffic through the Internet and you pay to receive it. This has been the long term payment system and the infrastructure depends on it.

• Content owners like P2P because it changes their costs to “zero” and will fight for it (with lobbying, FUD +residential voices). People need to think through the end game on this.

•Engineers find P2P interesting due to the robustness of the massive infrastructure and, with a geographic and capacity control plane, provides an efficient delivery system. However this needs to be cost modeled

•Broadband business owners find P2P challenging due to there is no clear way to properly fund Internet costs. If someone actually used, or allowed Apple to use, 100Mb of the residential bandwidth there are large costs associated with this that will need to be factored in.

As speeds increase, these factors gets more and more difficult. If P2P really does take off and is used as the primary content distribution medium for many future services, the last 2 bullets will need to be figured out for P2P to be successful. Generally, I think people on both sides of the debate need to understand all the issues.


funchords
Hello
Premium,MVM
join:2001-03-11
Washington, DC
·Verizon Online DSL
·Skype

reply to hobgoblin
said by hobgoblin See Profile :

quote:
"It's a total violation of net nuetrality "
Not..they are treating all P2P traffic the same
Since Comcast is discriminating against P2P, it's not completely "neutral."

Complete Network Neutrality will be hard to accomplish. I prefer to think of it as a service goal: to be as network neutral as possible, and to disclose precisely in what ways the service is not neutral.
--
Robb Topolski -= funchords.com =- Hillsboro, Oregon USA
Are you affected by Comcast's RST forging? How to test it! -or- Read my original report.


jbob
Reach Out and Touch Someone
Premium
join:2004-04-26
Little Rock, AR
·Comcast
·AT&T Southwest

reply to telcolackey
said by telcolackey See Profile :

The specific section is as follows:
run programs, equipment, or servers from the Premises that provide network content or any other services to anyone outside of your Premises LAN (Local Area Network), also commonly referred to as public services or servers. Examples of prohibited services and servers include, but are not limited to, e-mail, Web hosting, file sharing, and proxy services and servers;
I've highlighted what I believe is being interpreted as the ToS elements related to P2P
Either way Comcast has shot themselves in the foot by publically stating they do not block P2P or BitTorrent making the whole argument of "file sharing" or even if you choose to go the "Server" route as it applies to BitTorrent a mute point now. By allowing it up till now and making offical public statements to the contrary they have effectively told the public and powers to be that they do not specifically consider P2P or file sharing via BitTorrent as something that is violating the ToS.


telcolackey
The Truth? You can't handle the truth

join:2007-04-06
Death Valley, CA

said by jbob See Profile :

Either way Comcast has shot themselves in the foot by publically stating they do not block P2P or BitTorrent making the whole argument of "file sharing" or even if you choose to go the "Server" route as it applies to BitTorrent a mute point now. By allowing it up till now and making offical public statements to the contrary they have effectively told the public and powers to be that they do not specifically consider P2P or file sharing via BitTorrent as something that is violating the ToS.
This is another interpretation to fit an agenda. They also say they don't proactively block illegal activity so does that mean they cannot address it if notified?


funchords
Hello
Premium,MVM
join:2001-03-11
Washington, DC
·Verizon Online DSL
·Skype

reply to telcolackey
That was a pretty good write-up, and I do not take issue with most of it.

The speeds didn't increase because it was economical. Long before the move to 6 Mbps, it was already economical.

The speeds increased because of competition. Many DSL providers offered a 3 Mbps tier, and the 6 Mbps tier was the response.

About 6-months to a year before the move to the 6 Mbps basic tier, Brian Roberts told investors on the quarterly earnings conference call that they were doing this because:
1. They could do it very cheaply.
2. The demand was already there, as DSL was signing up customers due to the higher tier.
3. DSL couldn't offer anything close to it.

And he was right. And despite moving to 6 Mbps tiers, despite the increased bandwidth consumption by all users over the past 18 months (not only P2P but YouTube and the like), despite the acquisitions and upgrade costs, Comcast will make roughly $25 Bn in profit this year, topping the previous years' performances of $15.9 Bn, $14.2 Bn, and $12.8 Bn.

said by telcolackey :
The problem has less to do with HFC and more to do with 1) speed increases, 2) p2p and 3) Internet economics. FiOS and others also have the same economic challenges
All, in case you didn't know: (HFC defined)

I'm not sure why you are telcolackey, you impress me more as cable knowledgeable.

The market is demonstrating that the problem has a lot to do with HFC and, in particular, its upload constraint. Cablelabs is behind the competitive ball, and FIOS is taking Cable Internet customers as a result. Cable can't touch a 20/2 tier -- soon to be a 20/20 tier. (Why a 20/20 tier? Ask Brian Roberts! Because it's competitive to do so, demand is there, and they can do it cheaply!)

quote:
People will use corner cases of usage
This is a common way to illustrate a point (especially on forums and usenet and such).

The reason the FCC gave om 2005 for not making Network Neutrality rules was that almost all of the arguments for it were "what if" scenarios. The one or two actual cases that had come up wasn't enough to describe an industry-wide problem.

quote:
(although they won't admit it yet as their product is a "loss leader")
It's a loss-leader product because they had to lay down new fiber throughout every neighborhood. CableTV companies laid new wire too, however they did that 20 years before. The little bit of work that they had to do to make it bi-directional and digital pales in comparison.
--
Robb Topolski -= funchords.com =- Hillsboro, Oregon USA
Are you affected by Comcast's RST forging? How to test it! -or- Read my original report.


telcolackey
The Truth? You can't handle the truth

join:2007-04-06
Death Valley, CA

said by funchords See Profile :

The market is demonstrating that the problem has a lot to do with HFC and, in particular, its upload constraint. Cablelabs is behind the competitive ball, and FIOS is taking Cable Internet customers as a result. Cable can't touch a 20/2 tier -- soon to be a 20/20 tier.
DOCSIS actually does not have the upstream constraint people think. Most CMTS cards offer equal bandwidth (combined ports) for both upstream and downstream. On the flip side, residential historically is a downstream product and (normally) upsteam users are either running servers / commercial or have rare upstream burst needs (hence powerboost). (please no corner cases)

FIOS 20/20 is as much marketing as technology. It is the same thing cable did to DSL for so many years. FIOS cannot economically support a large number of customers running 20/20 7x24 via their ONT infrastructure.

Technically there are ways to increase capacity for the density of bandwidth requirements, but as you start bringing this level of capacity need upstream the economics start to fall appart.

said by funchords See Profile :

It's a loss-leader product because they had to lay down new fiber throughout every neighborhood. CableTV companies laid new wire too, however they did that 20 years before. The little bit of work that they had to do to make it bi-directional and digital pales in comparison.
Perhaps. But 20/20 will be a loss leader if people run this 7x24 no mater if it is FTTH or HFC. The regional and national costs to deliver continuous content at these speeds is not $50 / month... commercially it is more like $50 / meg (average costs for 50Mb small biz service).


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

reply to funchords
said by funchords See Profile :

Comcast will make roughly $25 Bn in profit this year, topping the previous years' performances of $15.9 Bn, $14.2 Bn, and $12.8 Bn.
That's gross profit, which doesn't include taxes, paid dividends, and other indirect costs. Net profit is much lower than that. Your numbers also appear to be off:

»finance.google.com/finance?fstyp···AQ:CMCSA

Year to date gross profit: is ~$14.6Bn so unless they're going to have a magical $10Bn Q42007 there's no way they're going to make $25Bn.

Compare total operating expenses to total revenue. Comcast is certainly making money, but not hand-over-fist like you are suggesting.


jbob
Reach Out and Touch Someone
Premium
join:2004-04-26
Little Rock, AR
·Comcast
·AT&T Southwest

reply to telcolackey
said by telcolackey See Profile :

said by jbob See Profile :

Either way Comcast has shot themselves in the foot by publically stating they do not block P2P or BitTorrent making the whole argument of "file sharing" or even if you choose to go the "Server" route as it applies to BitTorrent a mute point now. By allowing it up till now and making offical public statements to the contrary they have effectively told the public and powers to be that they do not specifically consider P2P or file sharing via BitTorrent as something that is violating the ToS.
This is another interpretation to fit an agenda. They also say they don't proactively block illegal activity so does that mean they cannot address it if notified?
Sorry as I have no agenda and have to disagree here. Illegal activity is a well defined subject. The ToS is written in legalese for a reason sometimes making it harder to try and interpret. I understand they way they write these things and do not have an issue. They try and cover all the bases but sometimes allow certain questionable activities to try and please the customer base as long as they do not interrupt the network for others.

They can't one minute say they don't block P2P and then turn around and say it's illegal the next. Well they could but that would probably not be the smart thing to do at this point! lol
Thread is
Forums » US Cable Support » Comcast » Comcast HSI[Spam] Comcast reporting spam from my IP »
« [CDV] Outgoing Static on calls  
page: 1 · 2 · 3 · 4


Saturday, 05-Dec 18:33:31 Terms of Use | Privacy Policy | Hosting by www.nac.net - DSL,Hosting & Co-lo | feedback | contact
over 10 years online! © 1999-2009 dslreports.com.
page compression OFF
Most commented news this week
· [163] Comcast Releasing Promised Usage Meter
· [147] Avast Antivirus Has Gone Mad
· [128] Comcast Makes NBC Universal Acquisition Official
· [105] The Bandwidth Hog Does Not Exist
· [104] Graduate Student Unveils Sprint's GPS Sharing With Feds
· [101] Google Invades ISP, OpenDNS Turf With Google Public DNS
· [85] FCC Ponders Moving From PSTN To IP Voice
· [81] Latest Consumer Reports Survey Not Kind To AT&T
· [80] New Bill Aims To Limit ETFs
· [74] Sprint Defuses GPS Privacy Media Bomb
Most people now reading
· False positive in Avast! or is it real? [Security]
· Wife might have to work in.... Iowa for a few months!!! [General Questions]
· First commercial tool to crack BitLocker arrives (Updated) [Security]
· 3.x Feral Druid - Bear Tanking Guide [World of Warcraft]
· Windows 7 boot manager editing questions [Microsoft Help]
· UPS - What do you people think happened? [General Questions]
· RG Firmware update to VDSL2 this morning [AT&T U-verse]
· Is Gear Score now the new requirement to get pug invite? [World of Warcraft]
· Connecting to Google Voice Via SIP [VOIP Tech Chat]
· DNS options, what are YOU using? [TekSavvy]