BQM Check for Gig1 please
Hi all Had my M600 upgraded to Gig1 few days ago, and got a SH5 SH4 never had a attenuator fitted so was a easy swap. I set up BQM and see lots of high latency spikes (yellow), is this normal? To...
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IPFreely wrote:Sure you haven't combined the costs of Mustang and Lightning?
Mustang is supposed to come in sub-£100 per premises passed and less than £1.5 billion total.
Believe VM aren't doing any more plant upgrade in terms of RF bandwidth but still have some plans for the HFC.
You're right, my maths is shonky, although if they can stick to a £1.5bn budget in these times I'll be amazed. Even so, it still doesn't take away from my argument - why invest in improving the old technology when you're telling the world you are building it's replacement? There appears to be some muddled thinking at VM Towers, that they'll put in the basics of XGS-PON for some billions, with nothing budgeted for drop links and CPE. If VM are indeed investing in HFC and doing something akin to my D three-point-half (esp symmetric speeds), they surely they may as well have gone the whole hog of D4.0, and not bothered with the PON plans at all. Worst case, VM keep twiddling the knobs on DOCSIS but that won't get symmetric speeds, and by the time any VM XGS-PON product is available, Openreach and altnets will have cornered such commercial market as exists for symmetrical or fast uploads. Best case VM upgrade DOCSIS, it delivers LLD and symmetric, is available commercially to counter (eg) Vodafone recent 2 Gbps symmetric announcement, but then there's no returns on the PON investment because nobody will want anything better than 2-10 gig symmetric. It's not good either way, is it?
Last time I saw planning that bad was when working in the former Soviet Union shortly after the fall of Communism. The city of Leningrad needed two new super sewers, each leading to a massive new sewage treatment plant to serve respectively the south and north of the city. As they didn't have the money to do all of it, they built one super sewer and one treatment plant. Unfortunately, due to VM-style planning, they built the northern sewer to a treatment plant that didn't exist, and built the southern treatment plant but without any sewer to bring in the raw foulage, with the result that the entirety of the city's sewage from 5.5m people and a heavy industrial base was thrown into the Gulf of Finland without any treatment at all.
Understood. As mentioned no more RF spectrum upgrades. Some areas won't even get the 3.1 upstream channel others have right now as there's nowhere for it to go: their return paths end at 50 MHz.
Maximum realistic upload speeds for a single customer of 100 Mbit/s with the 5 * SC-QAM + 1 * OFDMA the 65 MHz return areas have, would need to remove SC-QAM and replace with OFDMA to get more which is likely.
The 50 MHz areas are maxed out until spectrum is reallocated to OFDMA.
The 85 MHz areas could go to 200+ without rearrangement.
The RFoG areas can't have OFDMA. 100 Mbit realistic maximum.
Downstream wise a 2.2 Gbit/s service is perfectly doable, however it would likely at least for a while have different upload speeds depending on the area: as low as 50 and as high as 200 is feasible.
100 up in areas with the 5 * SC-QAM + OFDMA should be a thing in the next few months.
As a higher proportion of the customer base use 3.1 modems spectrum both upstream and down will be reallocated from regular QAMs to OFDM/A and even on spectrum restricted networks another OFDM block can be lit downstream.
Can confirm what IPFreely said, last year not long after I signed up, I had it confirmed to me by the executive office who made the effort to contact the chief for my area, to confirm I will not be getting a 3.1 upstream, channel any time soon, they didnt say never, but of course knowing the future is FTTP on VM, then putting two and two together, my area will be stuck on a 50mhz return path.
This of course brings up questions about the future of upload speeds from VM.
It would seem they either release higher speeds in select areas only (with the more modern plant equipment) or keep as they are, even with the current 50mbit upload speeds, I get evening congestion knocking it down to around 30. The executive office comment on this was they dont care about upstream speeds.
Luckily I mainly only care about my downstream performance and am getting gigabit speeds downstream 24/7 currently. So I have accepted it and enjoy the blazing fast downloads. But is a shame VM dont have more pride in the service they offer.--
Note I signed up a week before the lower tiers got their speed uplift, the affect on my TBB was visible, and I was actually getting almost the full 50 in evenings before that uplift happened. (45+). I personally think those speeds should have only been activated in the 3.1 US areas, but is what it is.
