Romney2012Defeat Obama 2012-Chg we can believe inPremium
join:2002-03-03
USA
kudos:4 | Sandvine says Docsis 3 won't end need for traffic mgt After going to their web site, I found it interesting that they made a big point of explaining that Docsis 3 cable systems(like Comcast) won't end the need for traffic mgt. They say that HD video will relatively quickly even saturate D3 systems and that their product will still be needed.
Of course, they are pitching the need for their services even on much faster networks. But they probably are making a valid point - even Docsis 3 won't keep up when massive HD videos become mainstream. Maybe that is why all the ISPs are looking at caps.
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| Nah..... they are looking at caps with overage charges to keep people like you (corporate stock jockeys) happy.
So they are rolling out what is suppose to be the next great technology and yet still need a device that they implemented with last decades technology to make up for it's shortcomings?
I guess if this new great technology wasn't so good, it should of been skipped and they should of went right to the true next great technology - FIBER all the way to the consumer. That would make too much sense though. Why invest now for tomorrow when you can keep the "we want maximum profits and want them now short timers" happy by milking this cow until it falls over dead? |
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iansltx
join:2007-02-19
Golden, CO
kudos:2 | reply to Romney2012
Funny how there's no mention of GPON in their bandwidth apocalypse. Why? Well, when you're dividing up 2.488 Gbps of capacity among 32 (at most) users you can run everyone at full throttle with no ill effects. |
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 espaethDigital PlumberPremium,MVM
join:2001-04-21
Minneapolis, MN
kudos:2
 ·Clear Wireless
| said by iansltx:Funny how there's no mention of GPON in their bandwidth apocalypse. Why? Well, when you're dividing up 2.488 Gbps of capacity among 32 (at most) users you can run everyone at full throttle with no ill effects. That's the capacity of the access technology, not overall network capacity.
Verizon isn't budgeting 2.5gbps of distribution capacity for every single FiOS segment.
The problem is solvable with money, and for cheaper than upgrading the edge again. That's the whole point in $18 billion infrastructure upgrade projects -- you want to get as much run time out of them as possible. |
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iansltx
join:2007-02-19
Golden, CO
kudos:2 Reviews:
 ·Comcast
| That's true, however once you've upgraded the edge to PON, you simply drop in faster electronics and you have 10G-PON and beyond. On the backbone side, again all you need is electronics to get where you need to be. 100 Gbit WDM tech (per strand) should be along soonish, so the backbone won't be congested either. |
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espaethDigital PlumberPremium,MVM
join:2001-04-21
Minneapolis, MN
kudos:2 Reviews:
·Clear Wireless
| said by iansltx:That's true, however once you've upgraded the edge to PON, you simply drop in faster electronics and you have 10G-PON and beyond. Sort of.
GPON to 10G-PON usually requires recharacterization and signal remediation because the allowable signal tolerances are different. The downstream is also shared across all of the ONTs on the segment, so to upgrade to 10GPON you either need to upgrade all the ONTs at the same time or break the 10G signal out into a different lambda and upgrade specific ONTs to using the new wavelength.
At a high level you're absolutely correct, but when you actually start working down into the details of implementation the required tasks make it cost a lot more than it would appear on the surface.
said by iansltx:On the backbone side, again all you need is electronics to get where you need to be. 100 Gbit WDM tech (per strand) should be along soonish, so the backbone won't be congested either. 100GigE Ethernet isn't due for ratification until sometime around Q2 2010, so I wouldn't expect to see product being widely available for that until probably around 2011. You also have to keep in mind that the major carriers have massive investments in existing WDM solutions that may not be 100G capable. (ie, there's still an insanely large deployment of Nortel Optera 5xxx hardware amongst carriers) |
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