IP Profile Reset on FTTC?

So, what is the truth of the matter here? There seems to be some debate.

Can the IP Profile on an FTTC broadband connection be reset or not?

If it can, what is the big deal about requesting it being done? If my connection really does need interleave to remain stable, the profile will just adjust itself to compensate and switch it back on, and you can say told you so. If my connection really is stable enough to handle fast path, then great. Either way I am happy, you are happy.

Ofc if I was asking for this to be done every few weeks, then I would understand the refusal, but maybe allowing it to be done once every year or so?

On a side note, does the profile ever switch from interleave to fast path automatically and if so, under what conditions (references please)

It irks me that I lost 10mbit and 8ms due to going from fast path to interleave even 12 months down the line.

IP Profile is a result of the sync speed, so not sure where interleaving fits in?

You are asking to be switched between the 3 DLM modes, that is the only control Zen have.

In reply to a post by Third_of_Five:

It irks me that I lost 10mbit and 8ms due to going from fast path to interleave even 12 months down the line.

The speed loss may also be due to drop in your max attainable rates. Eighteen months ago, I had a max downstream attainable rate of 102Mbps. It is now down to 91Mbps. There is no interleaving on my line and I am about 250M from my FTTC cabinet. An often cited reason for this speed loss is increased take up of FTTC and the effects of 'crosstalk'. No doubt the experts can explain further.

In reply to a post by MrSaffron:

IP Profile is a result of the sync speed, so not sure where interleaving fits in?

You are asking to be switched between the 3 DLM modes, that is the only control Zen have.

Is it possible to have something reset that will cause fast path to be used instead of interleave?

Are you saying Zen can control the DLM mode on a connection? What DLM mode would allow for fast path?

Edited by deleted (Mon 15-Jul-13 14:34:54)

The IP profile can be reset on FTTC yes, But it due to Openreaches short sightedness or them wanting to be control freaks This requires an Engineer to visit the FTTC cab it cannot be done remotely like ADSL can, And of course this may be chargable to the ISP hence why some will try &fob you off with the IP profile can't be reset,

Not saying they have control of interleave, but three DLM modes of operation

Standard, Stable or Speed

And believe Zen always opt for Speed mode that favours throughput, so the automatic system will be less keen to increase interleaving depth compared to the other modes.

Ok thanks, so it wound't be unreasonable for me to ask Zen which DLM mode my connection was set to?

Should be reasonable but I had read a page that said Zen opt for the speed version all the time.

Agreed, however we should NEVER Fob off any query or customer. If this does happen, please make sure you take the persons name and then call back to let us know.

What does resetting the IP profile on FTTC achieve?
It is calculated dynamically at every sync from the sync rate, so should not get stuck line in the old ADSL2+ days.

Resetting DLM and letting the line retrain from day 0 might be useful.

Edited as I've got clarification...

BT Wholesale still use the profile names of ADSL - so when we order 'Standard' and BT Wholesale say it's standard what they pass on to Openreach is an order for 'Speed'.

With our GEA FTTC orders we order 'Standard' - so that will be the middle (balanced) profile, rather than 'Speed'..

kind regards,
Phil.

Edited by deleted (Tue 16-Jul-13 10:35:49)

The layer cake of confusion

Indeed. It's giving me a headache!

In reply to a post by MrSaffron:

What does resetting the IP profile on FTTC achieve?
It is calculated dynamically at every sync from the sync rate, so should not get stuck line in the old ADSL2+ days.

Resetting DLM and letting the line retrain from day 0 might be useful.

A DLM reset was what i meant to say , not the IP profile , i got distracted lol

I thought the mapping between the Wholesale and Openreach DLM profiles is:

BTW "Standard" = Openreach "Speed"
BTW "Stable" = Openreach "Standard"
BTW "Superstable" = Openreach "Stable"

Yep, that's what I've said. On our BTW services we order 'standard' from Wholesale, which is passed on to Openreach as an order for 'Speed'.

ta,
Phil.

So on GEA FTTC, you can actually order "Speed", "Standard" or "Stable".
Can you also modify these during the contract?

Yes, as GEA FTTC is a direct order with Openreach we order the DLM profile using Openreach's names.

They should be changeable in-contract without resetting the term (unlike a shift from standard to elevated traffic profiles, and vice-versa). We've not tried yet though - as the understanding was that we were already using 'Speed' - but we've found that isn't the case.

regards,
Phil.

In reply to a post by SkyFire:

Yes, as GEA FTTC is a direct order with Openreach we order the DLM profile using Openreach's names.

They should be changeable in-contract without resetting the term (unlike a shift from standard to elevated traffic profiles, and vice-versa). We've not tried yet though - as the understanding was that we were already using 'Speed' - but we've found that isn't the case.

regards,
Phil.

So for me, what does all that mean?

I have been told that:

"The circuit is currently on a 'Standard' DLM profile mode."

"the profile that the DLM has selected should be sufficient"

So is that Openreach speed profile name or a Zen one?

And poor little old me is left in the dark. Now I have no idea if my profile is really on standard or speed, cos I am told standard.

If you can PM me your account username please I'll take a look - from what you've posted here I don't know if you're on a BTW based service or GEA - so I can't answer accurately without that detail.

kind regards,
Phil.

I thought I already had sent you that. I will send it again, I may have been caught out by the forums insistence on an additional layer of confirmation and not actually completed posting it.

In reply to a post by Third_of_Five:

I thought I already had sent you that. I will send it again, I may have been caught out by the forums insistence on an additional layer of confirmation and not actually completed posting it.

Sent, looks like thats what I probably did, I see the message in the sent messages list now.