VDSL speeds have shot up!? Chorus changing to 998 bandplan.

Forums › New Zealand Broadband › VDSL speeds have shot up!? Chorus changing to 998 bandplan.

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#1345503 16-Jul-2015 14:59

Sure. Here you go... The modem is a Draytek Vigor 130, in bridge mode.

AKLWestie

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#1345575 16-Jul-2015 16:03

For those that have been moved to baseband 998, can you post your suburb as well so we can get a feel of the speed of the roll out.

My VDSL2 is on 55/10 now, am interest to know what speed will I get once I'm on 998.

Thanks!

Jase2985

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#1345587 16-Jul-2015 16:20

tnaseem: Sure. Here you go... The modem is a Draytek Vigor 130, in bridge mode.

was more looking for things like attenuation etc

hio77

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Lizard Networks

#1345610 16-Jul-2015 17:00

tnaseem: Sure. Here you go... The modem is a Draytek Vigor 130, in bridge mode.

Looking at that snr, ild suspect the hard cap is 70/30 for vdsl now.

Will be interesting to see a modem that displays it with it.

as seen in your snr and your graph, your line is doing exactly what it should, maxing out and pulling back a tad.

Actually.. here we are.

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eXDee

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#1345647 16-Jul-2015 17:17

hio77:
tnaseem: Sure. Here you go... The modem is a Draytek Vigor 130, in bridge mode.

Looking at that snr, ild suspect the hard cap is 70/30 for vdsl now.

Will be interesting to see a modem that displays it with it.

as seen in your snr and your graph, your line is doing exactly what it should, maxing out and pulling back a tad.

Actually.. here we are.

Aside from backhaul capacity and wanting to move people to UFB, is there any reason why they wouldn't just take the brakes off on these profiles and allow the line to go as fast as it can?
Would this result in more interference/crosstalk or any other issues?

hio77

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Lizard Networks

#1345652 16-Jul-2015 17:21

eXDee:
Aside from backhaul capacity and wanting to move people to UFB, is there any reason why they wouldn't just take the brakes off on these profiles and allow the line to go as fast as it can?
Would this result in more interference/crosstalk or any other issues?

ild expect if the line was allowed to go full noise, there would be a fair bit of crosstalk, compared to currently.

Realistically, if your after that speed Fibre should be the key anyway.

That line in particular, IIRC has an attainable of 100mbit (which i honestly, wouldnt be surprised if it hit that high given the specturm)

to be fair, its a near perfect line however.

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tnaseem

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#1346279 17-Jul-2015 14:29

Thanks for the info chaps.

Jase2985:
tnaseem: Sure. Here you go... The modem is a Draytek Vigor 130, in bridge mode.

was more looking for things like attenuation etc

Apologies. I did try hunting around in the menus to get more info, but couldn't find anything. I'll try again, once I can wrestle my lad's laptop off him again (the only one with a rj45 to plug into the modem!)

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NonprayingMantis

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#1346283 17-Jul-2015 14:50

Hopefully the res on this is ok, saw it today and thought of this thread

kiwipeter

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#1346440 17-Jul-2015 18:16

I assume I am still running on 997...

hio77

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Lizard Networks

#1346441 17-Jul-2015 18:18

kiwipeter: I assume I am still running on 997...

no US0 there, so Yes. that looks like 997.

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kiwipeter

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#1346445 17-Jul-2015 18:26

So does that 'empty' space get allocated as download or upload?

mercutio

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#1346447 17-Jul-2015 18:29

kiwipeter: So does that 'empty' space get allocated as download or upload?

upload, but from what i've seen the lower frequencies tend to have worse signal. the best seems to be slightly past where adsl2+ ends... so because a lot of users are still using adsl2+ and not yet on vdsl, as more users start to go on vdsl there'll be a better spread .. but as it stands, it's tones above 512 that tend to fare better....

there's a whole 8 mhz of bandwidth extra available if they enable 30a. but i don't think that's likely to happen. (short lines could use 30a, medium 17a, long 8b, extra long adsl/hsns)

hio77

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#1346449 17-Jul-2015 18:33

mercutio:
kiwipeter: So does that 'empty' space get allocated as download or upload?

upload, but from what i've seen the lower frequencies tend to have worse signal. the best seems to be slightly past where adsl2+ ends... so because a lot of users are still using adsl2+ and not yet on vdsl, as more users start to go on vdsl there'll be a better spread .. but as it stands, it's tones above 512 that tend to fare better....

there's a whole 8 mhz of bandwidth extra available if they enable 30a. but i don't think that's likely to happen. (short lines could use 30a, medium 17a, long 8b, extra long adsl/hsns)

US0 on 998 and ADSL are exactly the same size.

Logically i see the move as for edge cases, allowing the downstream to go further while offering "adsl" upload still, Likely a slight step up with a few attenuated bits in US1.

Ild like to see 12b be used for Medium lines, 30a would be a good usecase for pushing really short lines noise right down though.

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mercutio

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#1346497 17-Jul-2015 19:36

hio77:
mercutio:
kiwipeter: So does that 'empty' space get allocated as download or upload?

upload, but from what i've seen the lower frequencies tend to have worse signal. the best seems to be slightly past where adsl2+ ends... so because a lot of users are still using adsl2+ and not yet on vdsl, as more users start to go on vdsl there'll be a better spread .. but as it stands, it's tones above 512 that tend to fare better....

there's a whole 8 mhz of bandwidth extra available if they enable 30a. but i don't think that's likely to happen. (short lines could use 30a, medium 17a, long 8b, extra long adsl/hsns)

US0 on 998 and ADSL are exactly the same size.

Logically i see the move as for edge cases, allowing the downstream to go further while offering "adsl" upload still, Likely a slight step up with a few attenuated bits in US1.

Ild like to see 12b be used for Medium lines, 30a would be a good usecase for pushing really short lines noise right down though.

i think 12b and 17a are pretty similar. i'm mostly thinking of making use of spectrum bandwidth more so there's less noise on adsl frequencies. really, it seems that it'd make the most sense for most people to be on vdsl. so if for some reason someone is 2km from exchange they'll get less crosstalk...

but then vdsl2 is meant to work even on long lines, ... i wonder what it'd be like at 2km etc.

hio77

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Lizard Networks

#1346500 17-Jul-2015 19:47

mercutio:

i think 12b and 17a are pretty similar. i'm mostly thinking of making use of spectrum bandwidth more so there's less noise on adsl frequencies. really, it seems that it'd make the most sense for most people to be on vdsl. so if for some reason someone is 2km from exchange they'll get less crosstalk...

but then vdsl2 is meant to work even on long lines, ... i wonder what it'd be like at 2km etc.

12b ild put as a middle ground between the 8b and 17a, where the line is capable of making use of that extra US band (which is what 12b adds onto 8b) squeeze a bit more upload out, and potentially distribute the noise a tad.

2km, honestly ild say that is about what chorus will start offering out to, where you would be getting like 25/1.5 At best.. Likely Less.

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