On Tablet now.............PC shutdown

Have only been running RS full since swapping to the Netgear so no graphs only logs so should at least be able to "see" what Margin was before & after any resyncs

But cannot recall what interval i had lite set for so will just have to see what i can find on the relevent days/dates when the re syncs happened

As i say will trawl through all the data/info i can find in a day or so

Set it to 5 seconds though .

I have been too busy to trawl the older RS Lite figures and graphs...............will still try to get that done but thought I would post the latest change I spotted

I have been sync'ed at 3159 for good double digit number of days but spotted a change at about 09:18 hours yesterday the 4th May so here is copied the log data for that period:-

Fri 04 May 2012 09:14:58 Rx-Noise=6.3 Tx-Noise=18.5 Rx-Sync=3159 Tx-Sync=443
Fri 04 May 2012 09:15:03 Rx-Noise=4.3 Tx-Noise=18.4 Rx-Sync=3159 Tx-Sync=443
Fri 04 May 2012 09:15:08 Rx-Noise=4.3 Tx-Noise=18.4 Rx-Sync=3159 Tx-Sync=443
Fri 04 May 2012 09:15:13 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:18 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:23 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:28 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:33 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:38 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:43 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:48 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:53 Rx-Noise=0.0 Tx-Noise=0.0 Rx-Sync=0 Tx-Sync=0
Fri 04 May 2012 09:15:58 Rx-Noise=5.9 Tx-Noise=15.6 Rx-Sync=3055 Tx-Sync=443
Fri 04 May 2012 09:16:03 Rx-Noise=5.9 Tx-Noise=15.6 Rx-Sync=3055 Tx-Sync=443
Fri 04 May 2012 09:16:08 Rx-Noise=5.9 Tx-Noise=15.5 Rx-Sync=3055 Tx-Sync=443
Fri 04 May 2012 09:16:13 Rx-Noise=6.0 Tx-Noise=16.1 Rx-Sync=3055 Tx-Sync=443
Fri 04 May 2012 09:16:18 Rx-Noise=5.9 Tx-Noise=16.3 Rx-Sync=3055 Tx-Sync=443
Fri 04 May 2012 09:16:23 Rx-Noise=6.0 Tx-Noise=16.3 Rx-Sync=3055 Tx-Sync=443
Fri 04 May 2012 09:16:28 Rx-Noise=6.0 Tx-Noise=16.4 Rx-Sync=3055 Tx-Sync=443
Fri 04 May 2012 09:16:33 Rx-Noise=6.0 Tx-Noise=16.3 Rx-Sync=3055 Tx-Sync=443

And here is the link to the capture Noise Graph covering the same'ish period
false

If you can pick the bones out of this that would be good

FWIW as it had been so very stable for so many days I was planning on re-syncing later today the 5th to see if I could see an uplift.............................will try that in the morning if the DLM has not increased it by then???

TIA

PS I am beginning to wonder if a) I should get a 2Wire 2700HGV router as many claim that is bullet proof for longer lines with improved speeds and/or b) ask to go G.DMT on my 21CN connection..........though in the latter do you still retain the 21CN advantage of the more rapid increases if a drop does happen, or is that function more associated with the ADSL2 and ADSL2+ DSL connection type not the fact of being on a 21CN MSAN???

PPS I checked again what the Kitz DSL attenuation calculator has to report about the likelly speed I should get with 55.5db attenuation.............hmm! does not do the 0.5 so entered 56 and it says on DSLMax 3424 and ADSL2+ 3712 but I also see he says this:-

"It is also worth pointing out that attenuation is calculated differently for adsl and adsl2+, and its not unusual to see an increase of 3-4 db when moving from adsl1 to adsl2+.
The figures used are based on attenuation measured at 300Khz for adsl1. If you are already on adsl2+, then you will likely be using additional higher frequencies with an increase in attenuation which should be bourne in mind."

Now when I was switched from ADSLMax to 21CN my attenuation did not change significantly in the way he describes??? So what to make of that???

Edited by deleted (Sat 05-May-12 01:55:26)

Here copied & pasted the stats secton of the Telnet reported stats in RouterStats ~ does RS reset these figures when the line resync's or only when the Router is restarted. If the former then these figures cover something like 17 days in total???

Status: ShowtimeRetrain Reason: 8000
Channel: FAST, Upstream rate = 443 Kbps, Downstream rate = 3055 Kbps
Link Power State: L0
Mode: ADSL2
Channel: Fast
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.4 16.0
Attn(dB): 55.5 28.8
Pwr(dBm): 0.0 13.1
Max(Kbps): 3924 756
Rate (Kbps): 3055 443
G.dmt framing
K: 96(0) 14
R: 0 0
S: 1 1
D: 1 1
ADSL2 framing
MSGc: 59 12
B: 95 13
M: 1 1
T: 1 4
R: 0 0
S: 0.9948 0.9911
L: 772 113
D: 1 1
Counters
SF: 5949762 5657858
SFErr: 1302 0
RS: 0 0
RSCorr: 0 0
RSUnCorr: 0 0

HEC: 995 0
OCD: 86 0
LCD: 0 0
Total Cells: 693199262 869321
Data Cells: 5415060 15789
Drop Cells: 0
Bit Errors: 0 0

ES: 8803 0
SES: 29 0
UAS: 288 0
AS: 96184

INP: 0.00 0.00
PER: 16.16 17.84
delay: 0.24 0.24
OR: 32.16 8.07

Bitswap: 5911 4218

Total time = 1 days 22 hours 14 min 45 sec
SF = 79841827
CRC = 15829
LOS = 8
LOF = 44
ES = 8803
Latest 1 day time = 22 hours 14 min 45 sec
SF = 4953948
CRC = 1150
LOS = 0
LOF = 0
ES = 802
Latest 15 minutes time = 14 min 45 sec
SF = 54786
CRC = 11
LOS = 0
LOF = 0
ES = 10
Previous 15 minutes time = 15 min 0 sec
SF = 55654
CRC = 4
LOS = 0
LOF = 0
ES = 4
Previous 1 day time = 24 hours 0 sec
SF = 5351960
CRC = 1375
LOS = 1
LOF = 9
ES = 688
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 55716
CRC = 13
LOS = 0
LOF = 0
ES = 10
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 55654
CRC = 5
LOS = 0
LOF = 0
ES = 5
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 55654
CRC = 10
LOS = 0
LOF = 0
ES = 8

Right after 1day, 3hours & 53 mins of the 21CN DLM thinking my line was OK at a lower figure after many days at higher one I rebooted the Router and I am now sync'ing at 3189 with margin 5.9

OK only a very very modest increase, for now

It's useful to know whether it is ADSL2 or 2+, and what it is giving as the attenuation as well .

The rest of the stuff isn't (normally) needed.

In reply to a post by RobertoS:

It's useful to know whether it is ADSL2 or 2+, and what it is giving as the attenuation as well .

The rest of the stuff isn't (normally) needed.

Hi Roberto

Well it says above

ADSL2
Attenuation 55.5 for sync 3055

I as noted rebooted the Router 7hours 7mins on here are the shortened stats

Noise Margin: 6.3 dB
Connection Rate: 3183 Kbps
Line Attenuation: 55.0 dB
Power: 0.0 dBm
Max Rate: 4272 Kbps

SuperFrames: 1599549
SF (CRC) Errors: 3101
Reed Solomon: 0
RS Corrected: 0
RS Un-Corrected: 0
HEC: 1879
Errored Seconds: 402
Severe ES: 62

Interleave Depth: 1
Bitswaps: 1374

FWIW my Attenuation has been in the mid 50's ever since I got Max ADSL.

TIA

Just occured to me to see what the BT line chcker had to say about my immediate neighbours phone line bearing in mind they are approx 50ft away!
------------------------------------------------------------------------------------------------------
Your exchange is ADSL enabled, and our initial test on your line indicates that your line should be able to have an ADSL broadband service that provides a fixed line speed up to 1Mbps. However due to the length of your line the 1Mbps service may require an engineer visit who will, where possible, supply the broadband service.


Our test also indicates that your line currently supports an estimated ADSL Max broadband line speed of 2.5Mbps; typically the line speed would range between 1.5Mbps and 3.5Mbps.


Our test also indicates that your line currently supports an estimated ADSL2+ broadband line speed of 2.5Mbps; typically the line speed would range between 1Mbps and 4Mbps.
-------------------------------------------------------------------------------------------------------

And for my line:-
-------------------------------------------------------------------------------------------------------
Your exchange is ADSL enabled, and our initial test on your line indicates that your line should be able to have an ADSL broadband service that provides a fixed line speed up to 1Mbps. However due to the length of your line the 1Mbps service may require an engineer visit who will, where possible, supply the broadband service.


Our test also indicates that your line currently supports an estimated ADSL Max broadband line speed of 2Mbps; typically the line speed would range between 1Mbps and 3.5Mbps.


Our test also indicates that your line currently supports an estimated ADSL2+ broadband line speed of 2.5Mbps; typically the line speed would range between 1Mbps and 4Mbps.
----------------------------------------------------------------------------------------------------
I have enboldened the differences that standout in regard to the basic projected performance differences.

To me this is interesting as potentially our line lengths should be physically almost the same but why the, albeit small, marked difference???

1. There are feedback systems to the checker
2. Lines may not be the same
3. Difference may be marginal, but enough to drop one into next lower speed category
4. They are out to get you

In reply to a post by MrSaffron:

1. There are feedback systems to the checker
2. Lines may not be the same
3. Difference may be marginal, but enough to drop one into next lower speed category
4. They are out to get you

Re:-
1) Yes, but how the heck do they work ???

2) Point taken and there be the historical mystery of the UK phone lines and the changes made to them over the decades. If this was a water company "we" would be telling them to fix the leaks (e.g. replace the Aluminium with copper, check the joints when there are reported issues of Data Transmission etc) But BT fallback on such a wide band of tolerance that is IMO a laugh.................and yes I fully apprciate they have developed technology to wring as much as they can out of the old wires!

2a) FWIW as far as I can tell most if not all the exchanges around us have been converted to FTTC and we are far from rurally isolated so why leave us in a pocket???

3) There the rub..............see responses to #2 above especially in regard to the quality of the wires/wiring and th fact that my attenuation is so very constant!

4) well I do keep checking behind me whe I am out & about :lol: