A question about interleaving

ssh

Hi,

I have an SMC 7401BRA, which is a pretty good router. I'm connected to the eircom 1mbit service, and all works fine.

I would however like to lower my ping a bit and having read about this interleaving business, I reckon that could hack a fair bit off it.

There is an option on the router config which allows you to disable ADSL trellis, which appears to be a different name for interleaving. If I disable it, it makes no difference to the ping, so I reckon it's something which has to be configured on the far end.

Does anyone have any experience with getting Eircom to switch this off? I'm sure I could generate a suitably bull****ty reason for them to remove it.

thanks for any help.

shinzon

M8 you should do a search through these forums and see the amount of threads opened about interleaving and youll see theres absolutely no way to get eircom to switch interleaving off, its there and theres nothing that anyone can do about it im afraid.


Shin

ssh

I did search but found nothing definitive.

Thanks anyway

Tenshot

There was a fairly detailed discussion of interleaving a few months ago on this thread

It turns out the official ADSL standard (ITU G.992.1) does not allow the customer premise equipment (i.e. your home ADSL router) to control the interleaving value -- it has to go by what the central office tells it to use or you simply won't have a working connection.

So, the only way to get a lower interleave setting is to persuade your ISP to reduce it (and they in turn may need to persuade Eircom, depending on the type of service you're signed up for). The odds of Eircom doing it for a single customer are close to zero - it's more hassle for them, and I wouldn't be surprised if they have no way of even tracking interleave settings on a per-customer basis.

Praetorian

You can get interleaving turned off if you ask nicely* enough.

Disclaimer. Asking Eircom nicely will never work. Threaten to cancel your account with them and they will help you out.

ssh

You can get interleaving turned off if you ask nicely* enough.

Disclaimer. Asking Eircom nicely will never work. Threaten to cancel your account with them and they will help you out.

That is *precisely* what I was planning on doing. The fact that Esat provide a service for the same price with interleaving off makes this relatively easy to do.

Thanks all for your help

(and congrats on being the 999,999th poster)

Praetorian

Originally posted by ssh
and congrats on being the 999,999th poster

I was just trying to get the 1,000,000th post to annoy Yellum

ssh

Hmmm, rang 1890 260 260. Guy didn't seem to think they could do it, so he gave me the customer care number 1800 512128. They realised I was a business customer so forwarded me to the business care number: 1800 501 502.

The guy didn't have a clue what I was talking about, and said I should ring ADSL tech supp, but I explained I had already been there. He took my number, the adsl number and said that they would ring me back in due course. Should be interesting to see at least, the old "Well Esat do it" seems to work quite well

BKtje

What you probably need to talk to is a tech guy at your exchange.

ssh

You are probably right. I'm hoping that the accounts people will give me the go ahead and I can go and chat to the exchange people myself.

Frank Grimes

Originally posted by B-K-DzR
What you probably need to talk to is a tech guy at your exchange.

It wouldn't be done by the guys in the exchange. Interleaving is set on the profile on the ASAM/DSLAM afaik.

ssh

Thanks frank, that information is useful.

I got a call from a concerned Eircom accounts person who said that of course they'll try and accomodate me, and she's going to go and talk to the tech people now. I was able to sound all wise and say "I think it has to be set in the DSLAM, so that would be in internet house".

fingers crossed.

Frank Grimes

Originally posted by ssh
I was able to sound all wise and say "I think it has to be set in the DSLAM, so that would be in internet house"

They're in the exchanges

query

Actually the product is an industry agreed product so I doubt some 'helpful' technican could just change it - and if they so, they'd be sacked,

ssh

Bah. Apperantly it is not their policy to remove it. I'll check our contract to see how long it was for and then take a look at moving to esat.

Thanks for all of your help.

Tenshot

Aren't ESat now simply reselling the RADSL service, in which case it will also be interleaved?

ssh

I was under the impression that their business one (EU 170) wasn't rate adaptive and as such had no interleaving.

Frank Grimes

The business one is just ADSL.
There's been a few posts about it re. pings and it would look like interleaving is either off or set extremely low.

query

Esat resell the Rate Adaptive product as their residential product and so the settings are eircom/industry agreed. Their business products are rolled out through their unbundled exchanges and they are free to design their own products

MrPinK

Esat use fastpath instead of interleaving for their ADSL

Gmodified

Does anybody know if UTV uses interleaving

MrPinK

All the RADSL packages use interleaving at a low setting. This is set by Eircom. the other ISP's can't change it for their packages. The only reason Esat ADSL doesn't have it is because they supply that package from esat owned exchanges.