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Standard User adslmax
(eat-sleep-adslguide) Fri 09-May-25 16:02:29
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Re: FTTC Retransmission Low/High Question


[re: Bobby_Valentino] [link to this post]
 
I have the same on my DSLStats reported clean bill of zero CRC, SES, ES and DLM put High Retransmission (downstream) is so ridiculous because it will reduced your throughput speed 8/9% loss. I do hate the EVIL DLM. Been on it for over 10 days now, no sign of DLM removed it off yet.

Downstream Upstream
Line attenuation (dB): 11.8 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 79970 19999
SNR margin (dB): 4.4 15.2
Power (dBm): 12.4 0.1
Interleave depth: 8 1
INP: 52.00 0
G.INP: Enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

Bearer 0
RxQueue 124 0
TxQueue 31 0
G.INP Framing 18 0
G.INP Lookback 31 0
RRC Bits 0 24
Interleave depth 8 1
INP 52.00 0.00
INPRein 1.00 0.00
Delay 0 0
Bearer 1
Interleave depth 3 0
INP 4.00 0.00
INPRein 4.00 0.00
Delay 3 0

I did ask Martin (Aquiss) for DLM resetted as he will ask BTw to get it DLM resetted as per my request buit nothing is done yet by BTw is rather annoying.

I don't understand why DLM actioned to put high retransmission on downstream even no errors on CRC, SEC, ES should never put high retransmission on it. Possible bug on DLM system (Openreach)

Edited by adslmax (Fri 09-May-25 18:02:09)

Standard User adslmax
(eat-sleep-adslguide) Fri 09-May-25 17:29:48
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Re: FTTC Retransmission Low/High Question


[re: Bobby_Valentino] [link to this post]
 
You need a Putty Telnet tool

Cap at 60Mb. Leave for 8-11 days.
Should hopefully go Retx Low.

Sync will be similar but throughput better.

It might even change within a couple days. Every line is different.

adsl configure --maxDataRate 60000 20000 100000

Just done mine have to wait for next few days to see if DLM removed high retx
https://i.ibb.co/zhXt8SV5/Capped-Line-60000-Kbps-to-...

Downstream Upstream
Line attenuation (dB): 11.9 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 60000 19999
SNR margin (dB): 9.9 15.5
Power (dBm): 12.4 0.8
Interleave depth: 8 1
INP: 52.00 0
G.INP: Enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

Bearer 0
RxQueue 136 0
TxQueue 34 0
G.INP Framing 18 0
G.INP Lookback 31 0
RRC Bits 0 24
Interleave depth 8 1
INP 52.00 0.00
INPRein 1.00 0.00
Delay 0 0
Bearer 1
Interleave depth 1 0
INP 2.00 0.00
INPRein 2.00 0.00
Delay 0 0

Edited by adslmax (Fri 09-May-25 17:59:51)

Standard User Bobby_Valentino
(fountain of knowledge) Fri 09-May-25 23:12:21
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Re: FTTC Retransmission Low/High Question


[re: adslmax] [link to this post]
 
In reply to a post by adslmax:
You need a Putty Telnet tool

Cap at 60Mb. Leave for 8-11 days.
Should hopefully go Retx Low.

Sync will be similar but throughput better.

It might even change within a couple days. Every line is different.

adsl configure --maxDataRate 60000 20000 100000

Just done mine have to wait for next few days to see if DLM removed high retx
https://i.ibb.co/zhXt8SV5/Capped-Line-60000-Kbps-to-...

Downstream Upstream
Line attenuation (dB): 11.9 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 60000 19999
SNR margin (dB): 9.9 15.5
Power (dBm): 12.4 0.8
Interleave depth: 8 1
INP: 52.00 0
G.INP: Enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

Bearer 0
RxQueue 136 0
TxQueue 34 0
G.INP Framing 18 0
G.INP Lookback 31 0
RRC Bits 0 24
Interleave depth 8 1
INP 52.00 0.00
INPRein 1.00 0.00
Delay 0 0
Bearer 1
Interleave depth 1 0
INP 2.00 0.00
INPRein 2.00 0.00
Delay 0 0

I've set a limit before but don't like the idea that it could go back to Retransmission high when the line gets uncapped.

Let me wait a couple of days then will decide on next steps.


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Standard User adslmax
(eat-sleep-adslguide) Sun 11-May-25 08:37:50
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Re: FTTC Retransmission Low/High Question


[re: Bobby_Valentino] [link to this post]
 
DLM has resync this morning after 4am. Went back to the same as before as DLM refused to removed retx high INP 1.0. Throughput still 9% reduced. https://www.speedtest.net/result/17718430535

Also did noticed Last Retrain Reason: 1 (what this code mean?)

Downstream Upstream
Line attenuation (dB): 11.9 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 79999 19999
SNR margin (dB): 4.3 15.5
Power (dBm): 12.4 0.5
Interleave depth: 8 1
INP: 52.00 0
G.INP: Enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

Bearer 0
RxQueue 136 0
TxQueue 34 0
G.INP Framing 18 0
G.INP Lookback 31 0
RRC Bits 0 24
Interleave depth 8 1
INP 52.00 0.00
INPRein 1.00 0.00
Delay 0 0
Bearer 1
Interleave depth 3 0
INP 4.00 0.00
INPRein 4.00 0.00
Delay 3 0

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 1
Last initialization procedure status: 0
Max: Upstream rate = 25520 Kbps, Downstream rate = 86955 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 79999 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 4.3 15.5
Attn(dB): 11.9 0.0
Pwr(dBm): 12.4 0.5

Bearer 0
INP: 52.00 0.00
INPRein: 1.00 0.00
delay: 0 0
PER: 0.00 3.98
OR: 0.01 64.22
AgR: 80244.76 20063.54

Bearer 1
INP: 4.00 0.00
INPRein: 4.00 0.00
delay: 3 0
PER: 16.06 0.01
OR: 95.62 0.01
AgR: 95.62 0.01

Bitswap: 976/976 2/2

Since Link time = 4 hours 55 min 7 sec
FEC: 192 29
CRC: 0 15
ES: 0 15
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0

Edited by adslmax (Sun 11-May-25 08:44:38)

Standard User adslmax
(eat-sleep-adslguide) Wed 14-May-25 07:23:56
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Re: FTTC Retransmission Low/High Question


[re: Bobby_Valentino] [link to this post]
 
DLM has actioned last night after 1am

My line is currently shows:

Bearer 0
INP: 48.00 0.00
INPRein: 0.00 0.00

Retransmission is set to OFF for the downstream. smile

Downstream Upstream
Line attenuation (dB): 11.9 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 79999 19999
SNR margin (dB): 4.0 15.4
Power (dBm): 12.4 0.1
Interleave depth: 16 1
INP: 48.00 0
G.INP: Enabled Not enabled
Vectoring status: 5 (VECT_UNCONFIGURED)

Throughput speed now 74.8Mbps (back to normal range)
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