10M Strange call from virgin. - Page 2

kwikbreaks · 18-03-2012, 17:24

Quote:

Originally Posted by qasdfdsaq

...I should also point out average speeds an FTTC customer gets is 36mbps (out of 40), not the 20-30 you're proposing..

I've updated it although the minimum guaranteed speed (before they flog the same tech under a different branding) is only 15Mbps. I'm about 300m from my local streetcab so I'd expect to get good speeds.

qasdfdsaq · 18-03-2012, 17:26

True (for now) though, that minimum guaranteed speed is doubling to 30mbps, and the fault threshold is being removed - so from April there is no need to have a specifically low speed to despatch a tech. Also, VM have no guaranteed minimum speed at all.

Oh and at 300m you should get full speed (even on 80mb).

kwikbreaks · 18-03-2012, 17:31

That's a little disingenuous - sfaik BT only guarantee 15Mbps minimum sync - I don't think they offer any guarantee on throughput although all the stuff I've seen suggests that Infinity is like the early days of ADSL and how cable is supposed to be - you should actually achieve something close to the theoretical maximum most of the time.

qasdfdsaq · 18-03-2012, 17:42

The 15mbps sync is a bit different, it's a level below which they'll refuse to install (well they'll install if you push them hard enough), but very few people have lines long enough for that to kick in, virtually none in urban and suburban areas. Since the 80mb upgrade is done by (more than) doubling downstream line speed, anyone who gets ~25mbps now should be bumped up to at least 30, which currently is already >95% of Infinity customers anyway.

There is indeed a guarantee on throughput at peak times - though Openreach only guarnatee capacity from the exchange to the cab - from the exchange to the internet it's up to your ISP. Some ISPs guarantee that throughput too, IIRC it's not identical to the "prioritisation rate" but close - 12mbps for consumer and 16mbps for business, again to double when line rate doubles.

The reason FTTC gets so close to the headline speed is because of the heavy overprovisioning (or understating) of download speeds BT use. IIRC, last I calculated the 80mbps FTTC product actually runs on a bandplan with a theoretical max download of ~157mbps, capped down to a "realistic" figure most people could actually achieve.

General Maximus · 18-03-2012, 18:16

Quote:

Originally Posted by qasdfdsaq

They're not planning 100/30 anytime soon on FTTC. 80/20 is coming next month (10th April).

100/30 is already available now, in FTTP areas, going up to 300/something.

I need to give them a ring and find out what is going on because it says my exchange is enabled for infinity but when i put my postcode into the checker it says I cant get it. If I am paying for 100mbit fttp wont they have to run the fibre to the house anyway (meaning that I can/will get it if I pay for it)?

qasdfdsaq · 18-03-2012, 18:19

FTTP on demand isn't happening till next year.

General Maximus · 18-03-2012, 19:38

oh, when i looked at the packages available it said you could get 100/15 now

qasdfdsaq · 18-03-2012, 20:30

Like I said, only in FTTP areas. There is no FTTC in FTTP areas. The two are mutually exclusive - for now.

General Maximus · 18-03-2012, 21:47

With fttc do you still have the problem with speed and distance from the exchange. I am baffled why my area is enabled but my address cant get it. I have got a BT phone line and back in the day on 56k my line must have been squeeky clean because my speed was pretty much perfect all the time (for what 5.5k/sec is worth

)

Chrysalis · 18-03-2012, 22:02

Quote:

Originally Posted by kwikbreaks

That's a little disingenuous - sfaik BT only guarantee 15Mbps minimum sync - I don't think they offer any guarantee on throughput although all the stuff I've seen suggests that Infinity is like the early days of ADSL and how cable is supposed to be - you should actually achieve something close to the theoretical maximum most of the time.

on throughput they have a QoS system that ensures those speeds, is not a garuantuee although its still a lot better than just plain best effort.

qasdfdsaq · 18-03-2012, 22:03

You are affected by distance from the cabinet, not the exchange. As I mentioned the average speed at the moment is 36mbps.

Have you checked the December 2012 postcode file for your posctode?

---------- Post added at 23:03 ---------- Previous post was at 23:03 ----------

Quote:

Originally Posted by Chrysalis

on throughput they have a QoS system that ensures those speeds, is not a garuantuee although its still a lot better than just plain best effort.

There are actual, SLA'd guaranteed speeds available, but not as standard on all ISPs.