Quote:
Quote:
Originally Posted by kev445 
I personally doubt Virgin Media will increase the upload speed by a huge amount due to the current Docsis 3 approved specification. The current spec only increases the download speed and NOT the upload; the total available upload capacity will still be the same and the current implementation.
The final spec will however allow for the upload channels to be bonded the same as the download, until then no hardware manufacturers are making hardware capable of bonding the upstream.
Hopefully it will just be a case of a software upgrade!
|
Quote:
Originally Posted by TehTech
This is total rubbish!!
Have you bothered to read the DOCSIS 3 specification sheet??
I can tell you now that upload AND download on DOCSIS 3 can do a HELLA lot more than what VM will supply, and lets face it, the up/down ratios are pretty rubbish to say the least!
Take into account the overheads, and 50Mb down with a 1.5Mb upload will be damn near crippled, it will need AT LEAST a 5Mb upload speed to be able to cope properly!
And also, DOCSIS 3 allows for CHANNEL BONDING, try searching for this too as it is very informative!  |
what i think he means is the current Pre-DOCSIS3 kit, he is confusing the pre kit as full official spec, ITS NOT.
"bronze" bonds 4 of the downstream and adds Multicasting,ipv6 etc
and currently uses one upstream, but we are talking a usable 40Mbit/s per stream (for the slower non Euro version)for both the download and the UPLOAD, so its not all bad for now,not that VM will give the user anywere near that usable bandwidth ,justas you dont get to use anywere near the current 1.1 10Mbit+ upload rate.
"silver" adds the matching 4 upstreams,Qos Multicasting, and extra security etc
as far as i know, all the kit VM are trialing are based on the TI Puma 5, a cable modem chipset based on Docsis 3.0, and it appears that isnt designed to do more than the minimum 4 down/4 up channel bonding
but it is designed to have 2 chipsets on the same board, so some form of 8 channel bonding can be made to work in the future IF they/VM see fit to supply/buy in such a dual fitted board (EUE,End User Equipment) CPE (Customer Premeses Equipment) for longer term investment, expansion and savings.
if you really want to see some interesting facts as found so far by me, take a look at the thread
http://www.cableforum.co.uk/board/10...xt-page-8.html
iv put several current (at the time of posting)bits of public info regarding the spec,hardware and so on.
remember though some of that is for the generic US DOCSIS3 not the faster EuroDocsis3 spec that VM will use i assume.
109,113,114 sollp,118toto, and 119 are all relevent when taken together to meet the spec and the reshuffle of the spectrum.