dslreports logo
site
 
    All Forums Hot Topics Gallery
spc

spacer




how-to block ads


Search Topic:
uniqs
2733
share rss forum feed

kevinds

join:2003-05-01
Calgary, AB
kudos:1
reply to brad

Re: [AB] Whats Next?

Why is there a brick wall on upstream? Grab analog channels 2-6 for the sub 100 MHz frequencies, as far as I know, Shaw is only using 4 3.2 MHz channels for upstream, boost that to 4 6.4 MHz, and that could give them a significant boost.
--
Yes, I am not employed and looking for IT work. Have passport, will travel.



Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw
reply to brad

lol exactly what kevinds said, im curious where your getting this info from about adding more downstream channels, i have heard or 12 or 16 channel modems but that is not part of the original docsis 3 standard wich maxes out at 8 channels (304mb) down, so giving more then 250 wich is over 80% of the available bandwidth makes no sense, upstream on the other hand has a long way to go as shaw is only maxing even the 250 customers out at 15mbps, not even 15% of the max available upload bandwidth on a 4 channel upstream system, wich shaw has in place, and all shaw modems are 8X4, as i stated earlier and what kevinds said in his last post, upstream has a long way to go on docsis 3 for shaw, incase you missed what i said, optimum users can get 38mbps up (and they have the same available upstream bandwidth as probably 80-90% shaw customers, wich about 54mbps, shaw could give most people the same 38 mbps up if they wanted......
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U



rustydusty

join:2009-09-29
Red Deer, AB
reply to Doonz

You make it seem so simple Connor. If only in reality it was that simple. Or if we had flying carpets, or magic wands.



Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw

ive done extensive research on the issue, but ill promise you that the amount of upload channels and bandwidth shaw has available on my line and many others is 100% identical to the bandwidth and amount of channels used to give users 15 down, and im also fairly certain shaw could make new plans for the 250 users bumping them upto 30 mbps up, its definitely alot simpler then i thought it was in the beginning, shaw likes to make it sound hard lol
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U


brad

join:2007-09-06
Etobicoke, ON
reply to kevinds

said by kevinds:

Why is there a brick wall on upstream? Grab analog channels 2-6 for the sub 100 MHz frequencies, as far as I know, Shaw is only using 4 3.2 MHz channels for upstream, boost that to 4 6.4 MHz, and that could give them a significant boost.

Limited upstream spectrum. This is DOCSIS's known Achilles' heel. That's still not a whole lot of capacity.


Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw

sorry but incorrect, the channels are already in place, more spectrum could be needed to take shaws standard 4 3.2MHz channels and make them bigger 6.4 channels, but like i said earlier the 4 3.2 channels shaw has in already has enough for 60mbps, if they weant upto 6.4 wich is the logical next step (and requires only about 12.8MHz of bandwidth) the fact has been proven they have much more upstream available then even there highest plan will allow use off, its not about freeing up spectrum or anything, only thing that makes sense is shaw wanting to use that upload as something to charge us more money or make our plans better incase of competition (even tho if they were waiting for competition to do it u think it would already be done)
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U


brad

join:2007-09-06
Etobicoke, ON

1 edit
reply to Connor M

said by Connor M:

lol exactly what kevinds said, im curious where your getting this info from about adding more downstream channels, i have heard or 12 or 16 channel modems but that is not part of the original docsis 3 standard wich maxes out at 8 channels (304mb) down, so giving more then 250 wich is over 80% of the available bandwidth makes no sense, upstream on the other hand has a long way to go as shaw is only maxing even the 250 customers out at 15mbps, not even 15% of the max available upload bandwidth on a 4 channel upstream system, wich shaw has in place, and all shaw modems are 8X4, as i stated earlier and what kevinds said in his last post, upstream has a long way to go on docsis 3 for shaw, incase you missed what i said, optimum users can get 38mbps up (and they have the same available upstream bandwidth as probably 80-90% shaw customers, wich about 54mbps, shaw could give most people the same 38 mbps up if they wanted......

DOCSIS 3.0 did not define a maximum number of channels.

CMTS/chipset vendors have been working with greater than 8 channel setups for many years. Intel and Broadcom both have 24x8 chipsets and 32x8 are in the pipeline. The CMTS vendors Arris (they bought Motorola too) and Cisco all support up to 24 and 32 downstream bonded setups.

CPE supporting greater than 8 channels downstream are just starting to show up on the market. Rogers is already utilizing more than 8 channels.

OptimumOnline also has congestion at some of their nodes now too. You can only fit so many 35Mb upstream customers into 108Mbps (4 channels - 6.4MHz - 64QAM) shared between everyone on the node and nodes pass up to hundreds of houses.

brad

join:2007-09-06
Etobicoke, ON
reply to Connor M

said by Connor M:

sorry but incorrect

No, I am not. What I was talking about is utilizing 6.4MHz channels. Shaw is behind the curve upgrading.


Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw

if you say so, id expect them to be trying to make the 250 available to everyone first, but if you say so, personally i dont think shaw will ever use 6.4 wide channels for upstream on docsis 3, though they probably could, guess only time will tell
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U


brad

join:2007-09-06
Etobicoke, ON

said by Connor M:

if you say so, id expect them to be trying to make the 250 available to everyone first, but if you say so, personally i dont think shaw will ever use 6.4 wide channels for upstream on docsis 3, though they probably could, guess only time will tell

Well of course, I agree that having the 250 tier be available wide spread across their full cable plant is important. Their first step should be rolling out 8 downstream and 3 or 4 upstream channel bonding throughout their whole cable plant and switch to 64QAM for the upstream channels.

If that is the case you'll be stuck with low upstream speeds. Unless they do the infrastructure upgrades they don't have a choice as to what they're able to offer.


Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw

already using 4 QAM64 upstream channels on 80-90% (my guess) of customers (pretty much anyone who even has bb100 available), i know im on 4 QAM64 up channels, and i kno that everyone who has the 250 is aswell........ the main difference if im correct between bb250 and bb100 qualified areas is ONLY 2 downstream channels, nothing has to be done to upstream
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U



Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw
reply to brad

and no one on optimum is on 4 6.4 channels anyway, which you said in on of the above posts, most optimum customers getting the 35-38 up are only on 2 6.4 channels wich is exactly the same as shaws 4 3.2 channels, it just makes more sense to have 2 6.4 channels......
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U


brad

join:2007-09-06
Etobicoke, ON
reply to Connor M

said by Connor M:

already using 4 QAM64 upstream channels on 80-90% (my guess) of customers (pretty much anyone who even has bb100 available), i know im on 4 QAM64 up channels, and i kno that everyone who has the 250 is aswell........ the main difference if im correct between bb250 and bb100 qualified areas is ONLY 2 downstream channels, nothing has to be done to upstream

So at 4 64QAM that's roughly 64Mbps upstream shared between everyone on a node. If you bump the 250 tier alone up to say 30Mb upstream. How many people do you honestly think you can fit on a node sharing that 64Mbps, never mind other tiers at some sort of adjusted upstream speed as well? IMO 15 Mb up with the 250 tier IMO is weak just as 10 is with Rogers 150 tier. Rogers here has started rolling out 6.4MHz channels in addition to migration from 16QAM to 64QAM.

2 downstream channels? That does not make any sense. You would want at least 4 channels. For 250 they would be utilizing 8 channels.

brad

join:2007-09-06
Etobicoke, ON
reply to Connor M

said by Connor M:

and no one on optimum is on 4 6.4 channels anyway, which you said in on of the above posts, most optimum customers getting the 35-38 up are only on 2 6.4 channels wich is exactly the same as shaws 4 3.2 channels, it just makes more sense to have 2 6.4 channels......

Sorry I probably wasn't clear enough. The second part of my comment was to indicate the best case scenario for a cable node vs the 35 Mb upstream speed mentioned. Most MSOs are working with less capacity depending on the upstream channel count and configuration of the channels. It still doesn't change the first part of what I said.


Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw
reply to brad

when i said 2 downstream channels i should have said 2 additional downstream channels, 6 is very standard for shaw now +2 gives you the full 8, and like already stated ,most already have 4 upstream at QAM64 3.2
and to answer your question about how many people on a node can share 54mbps throughput, if everyone had 5-10 up (bb50/5 and 100/10) you could fit alot of people on a node before getting upstream congestion, i would guess/assume downstream congestion would come a hell of a lot sooner, hell you could probably have 10-15 users getting 30mbps of the 54 and not even have very much congestion, i would say its uncommon for the average user to use more then 5mbps up, and upload is something that isnt used very much, it just needs to work fast when it is used
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U


rotohoto

join:2012-03-31
canada
kudos:1

said by rustydusty:

You make it seem so simple Connor.

The less you know, the easier it seems.

said by Connor M:

ive done extensive research on the issue... ...im also fairly certain shaw could make new plans for the 250 users bumping them upto 30 mbps up, its definitely alot simpler then i thought it was in the beginning, shaw likes to make it sound hard lol

It's as "simple" as changing a line in a config file... that doesn't mean it's a good idea.


AnonShaw

@supernews.net
reply to Doonz

What's next? Until the government allows foreign competition to enter the Canadian market and offer far better speeds with prices more appropriate with today's market, I see Shaw just treading in the waters, sitting back doing as little as possible to impress it's clients.


tlhIngan

join:2002-07-08
Richmond, BC
kudos:1
reply to Doonz

No, first the government should split everyone up into three companies.

First, the natural monopoly last mile provider. These guys provide you the lines to your house from a central office or location.

Next, a service provider. These provide services over the last mile provider. This can be TV, internet, phone, whatever.

Finally, a content provider. These guys provide the content for the service providers - what we traditionally called a TV station.

Basically split up all the companies into these three. The last mile providers will be regulated as providers because there will naturally be very little competition (you'll have phone lines, cable, fiber, satellite, etc). All they provide is a data pipe to your house. That's it. That pipe doesn't have any connectivity attached. It's just a data pipe.

The service providers are what connect you to your traditional service. To make it more interesting, these service providers must interoperate - if you really want Telus internet service over cable, you can have it. These are expected to naturally compete - Telus, Shaw, Bell, Rogers, TekSavvy, Videotron, etc. You can mix and match - Internet from Shaw, phone from Telus, TV from Bell, all over the same line(s).

The content providers provide content to the service providers.

With all the companies working independently from each other, things should work better. If a content provider doesn't want to service Shaw customers, that's their loss in ratings and ads and all that. But a Bell content provider would wnt to provide content (at a fee) to Shaw because it's more money. There's no value in being "limited" to Bell.

And all the technology should interoperate - whether the customer provides the equipment or the provider does. Thus, if you wanted a cable box, you CAN buy one from the US where they're cheaper and use it. Or a used one off Craigslist. No longer are you limited to purchasing equipment from a provider. All standardized.

If we break infrastructure from service, things should improve, because infrastructure is espensive to maintain and a natural monopoly. Service is not.

Likewise, we should do the same for cellphones - the people who own the towers give you a dumb pipe. You can choose to buy your phone service from anyone who will give you the phone number, data connectivity, texts, etc.


kevinds

join:2003-05-01
Calgary, AB
kudos:1

Don't see it working so well for cell phone companies, spectrum and access to an area - Telus with 1000 active users in a location and Mobilicity with 2, dealing with congestion for example, and because cell phones move, how would the 'pipe' company charge people (percentage of the final bill maybe)?

But for home services, yes, I am all for this, like I posted a bit above, local 'company' providing and maintaining a fiber connection to each home, run it with the electricty - if a home isn't connected to the electric grid, there is a good chance it's not going to want fiber service (yes, there are homes that are connected, but shut-off because they generate their own power)

From what I have seen, Shaw has the cheapest 'boxes' right now, in the US, generally, you can't buy them, they are all rentals that I have seen.
--
Yes, I am not employed and looking for IT work. Have passport, will travel.


Mustafa

join:2006-10-04
reply to tlhIngan

said by tlhIngan:

No, first the government should split everyone up into three companies.

Finally, a content provider. These guys provide the content for the service providers - what we traditionally called a TV station.

They have all been buying up TV stations so they are the content providers. I still don’t understand how they were able to do that. Oh yea the CRTC is populated by a bunch of retired TELCO/cable cronies whose pensions are dependent on the shares of the very companies they are supposed to regulate. They are all a bunch of crooks. The sooner they are regulated the better, either that or start letting in foreign competition.

The big four contrary to the load of shit they spew did not pay for the entire infrastructure. A significant portion of it was bought and paid for with tax dollars under the broadband initiative. I know this because I used to run fibre for a subcontractor.

Boo-hoo with competition/regulation the CEO’s and cronies may have to limit their fleet of cars to ten or less and maybe have to sell off a mansion or two. My heart bleeds for them.

Doonz

join:2010-11-27
Beaumont, AB
Reviews:
·Shaw
reply to Doonz

Im not going to Lie.

I wish Every municipality was the last mile providers. The federal gov could give them a grant to install fiber from a central office and they would get everyone wired.

Then the providers could tie into the CO and who knows maybe that woulda sped up adoption of high speed possibly pushed the connection speeds up while pushing the cost down.

If a provider only had to run a line to the co they could use large stranded fiber line at a cheaper cost then wiring each individual neighbourhood



Bucko2013

@rogers.com

I think it is quite clear that cable has a better roadmap than dsl over say the next 5 years at least.


brad

join:2007-09-06
Etobicoke, ON

2 edits

said by Bucko2013 :

I think it is quite clear that cable has a better roadmap than dsl over say the next 5 years at least.

Doesn't look like it to me; not surprising too when a lot of the MSOs are already field trialing or are rolling out FTTH too.

kevinds

join:2003-05-01
Calgary, AB
kudos:1
reply to Bucko2013

It has been like that for the last decade too.

brad, how does it not look that way to you, when you say the MSOs are rolling out FTTH
--
Yes, I am not employed and looking for IT work. Have passport, will travel.


brad

join:2007-09-06
Etobicoke, ON

said by kevinds:

It has been like that for the last decade too.

brad, how does it not look that way to you, when you say the MSOs are rolling out FTTH

IMO cable isn't so hot when you take into consideration "peak hours" congestion with the nodes. Sure the peak speeds are better but you have a handful of users actually using their connections and performance drops because the nodes have too much over subscription.

By cable he means coax.

Also for all the potential on paper for DOCSIS the speeds haven't been all that fast; only a small percentage of the users have reasonable fast connections and the vast majority are on slower connections closer to VDSL2 speeds. I'd much rather have a 50Mb VDSL2 connection that is consistently fast versus a 150Mb cable connection that is quite variable with performance.


Connor M

join:2013-02-02
Whistler, BC
Reviews:
·Shaw

lol my friend told me he had really good internet cause he had xfinity the other day (comcast cable) and it was hard to explain like, well your internet could be good, or it could be shit if all your neighboors are using it, and then i explained and he was like ya maybe for 1% of customers, lol facepalm
--
Shaw Broadband 100/5 - Cisco DPC3825 - Asus RT-AC66U


kevinds

join:2003-05-01
Calgary, AB
kudos:1
reply to brad

I know, By cable he means coax.

But if DSL wasn't dead/dying, the DSL providers wouldn't be changing to deploying fiber instead.
--
Yes, I am not employed and looking for IT work. Have passport, will travel.


brad

join:2007-09-06
Etobicoke, ON

said by kevinds:

I know, By cable he means coax.

But if DSL wasn't dead/dying, the DSL providers wouldn't be changing to deploying fiber instead.

Corrected it for you..

If copper based access technologies weren't dying telcos and MSOs wouldn't be rolling out fiber.


Bucko2013

@rogers.com
reply to brad

said by brad:

I'd much rather have a 50Mb VDSL2 connection that is consistently fast versus a 150Mb cable connection that is quite variable with performance.

Wow really if they are the same price. I think not. If you had up to a 150mb connection I think it would be hard pressed to see equivalent to 50mb even at peak usage. Besides the cable companies seem to have better peering than the telcos out west in games I play. Congestion is a term most used by telco employees stuck in 2003.

......

So lets see over the next few years telcos get up to 100/150mb vdsl2 lines. The areas will be super select. Take for instance Telus 50mb has been around a while now and many people still don't qualify. The same argument was had when 25mb came out. Now there is struggling for 50mb so how long realistically before 50% of their user base has ability for 100/150mb vdsl2... Like 3 years IMO. So in the meantime greenfield FTTH goes out but guess what you still don't get FTTH true speeds 5 years since it started going out homes hooked up with fibre still are not at over 100mb. Embarrassing.

The cable companies have few areas with FTTH already. Mainly condos and smaller communities. What's the need to role it out with dsl speeds so far behind vs cost to deploy. Not much business sense there. Would it make sense to wait for D3.1 that runs over existing coax, seems so right. So it looks to me like the cable companies are upgrading their backbone to support the future and the telcos are upgrading the lines into to home and not the backbone to support the speeds.

In the meantime while infrastructural upgrades are happening good old regular DOCSIS 3.0 equipment are progressing with newer mass modems supporting over 500mbps with 16 and 24 bonded channels around.
Even with DOCSIS 3.0 the ability to split the 85mhz channel providing up to 300mbps upload potential is there. With D3.1 around the corner it's head over heels above anything copper. It's cheaper to put out than FTTH and is more than enough for the long term. Would also allow the cable companies to make smart choices with FTTH deployment and watch the costs build up. Even Verizon ran out of money during their FTTH build out.

What about tv? It's all going to be OTT....

ravenchilde

join:2011-04-01
kudos:2
reply to brad

said by brad:

IMO cable isn't so hot when you take into consideration "peak hours" congestion with the nodes. Sure the peak speeds are better but you have a handful of users actually using their connections and performance drops because the nodes have too much over subscription.

By cable he means coax.

Also for all the potential on paper for DOCSIS the speeds haven't been all that fast; only a small percentage of the users have reasonable fast connections and the vast majority are on slower connections closer to VDSL2 speeds.

This is primarily FUD. If you take Netindex.com by 3rd party OOKLA as a comparison: The cable companies are in spots 1 (rogers),3 (Shaw),4,6,7,9. The telcos are in 11,12,13,14 (exception: Bell Aliant in #2 - I believe they're doing a lot of FTTH).

Cite my work as usual: »www.netindex.com/download/2,7/Canada/

So, my question is: If cable is so slow, explain why they're up in the top 10 with the 3rd party resellers?

Also Brad likely hasn't read about DOCSIS 3.1 and the move to OFDM. 10G pipe, and decreasing node sizes. (Keep in mind that GPON by Telcos is only 1G or moving to 10-GPON). Coax has shielding and a much higher frequency spectrum than twisted pair, you'd be foolish to count it out.

PON and DOCSIS share a lot in their overall topology.