FTTC Retransmission Low/High Question

Hey all

My line is currently shows:

Bearer 0
INP: 54.00 0.00
INPRein: 1.00 0.00

Which means retransmission is set to high for the downstream.

Will this automatically change to retransmissions low if the line becomes stable by itself? Does the DLM take care of changing this?

It *ought to* …….,

In reply to a post by Zarjaz:

It *ought to* …….,

How long does it usually take? (Just based on average)

Also the DLM takes care of the retransmission low/high right?

That I could not reliably answer. Witchunt would be my best guess as the poster with the answers.

In reply to a post by Zarjaz:

That I could not reliably answer. Witchunt would be my best guess as the poster with the answers.

I'd be happy with an unreliable answer but hopefully it's your best calculated guess type of answer.

Maybe quite soon, sometime or possibly never! Nobody knows. I had re-transmission high on my line for no apparent reason. Full sync speed and virtually no errors.

I tried a suggested method that can remove it by capping my sync speed to a lower value, I think I set it to 60Mbps. You need a Broadcom based modem ( I use an unlocked Huawei HG612 ) The command is "xdslcmd configure --maxDataRate" followed by values for downstream and upstream
Can't recall the exact format but a bit of searching should find it. Try the Kitz forum.

Anyway after a week or so there was a local power cut and when the modem came back up the line was at full sync speed with re-transmission low, so it worked for me.

My trusty HG612 will be retired soon, I have an FTTP order in progress, delayed by a blocked duct in the pavement. Openreach taking their time to fix it.

It relies on many different factors, and even then, can sometimes not readjust under its own steam.

In reply to a post by Realalemadrid:

Maybe quite soon, sometime or possibly never! Nobody knows. I had re-transmission high on my line for no apparent reason. Full sync speed and virtually no errors.

I tried a suggested method that can remove it by capping my sync speed to a lower value, I think I set it to 60Mbps. You need a Broadcom based modem ( I use an unlocked Huawei HG612 ) The command is "xdslcmd configure --maxDataRate" followed by values for downstream and upstream
Can't recall the exact format but a bit of searching should find it. Try the Kitz forum.

Anyway after a week or so there was a local power cut and when the modem came back up the line was at full sync speed with re-transmission low, so it worked for me.

My trusty HG612 will be retired soon, I have an FTTP order in progress, delayed by a blocked duct in the pavement. Openreach taking their time to fix it.

I remember capping my speeds last time. Only problem with this is that the retransmission high will very likely come back once uncapped (if it detects too many errors) ... I'd just want to leave it natural in the way it goes about doing things.

I must have a very clean line with very few downstream errors, in fact since my last sync event over 17 days ago my stats show zero for CRC, ES and SES errors. I capped my line 5 years ago and it has stayed on retx low ever since.

Best of luck waiting for DLM to remove retx high.

Best of luck waiting for DLM to remove retx high. (I bet DLM will never get it removed it off) EVIL DLM!

Edited by adslmax (Fri 09-May-25 16:10:36)