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When might Eircom to enable vectoring on their eFibre/VDSL service?
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Thoughts on vectoring...
ALL cabinets will be completed by next week.
I am guessing most people will then be bulk upgraded in the coming weeks by their ISPs
People could still call and have it done manually although the prequal result will dictate the max profile.
The current max profile is 100/20 regardless of what your modulator/deomodulator tells you
And in fact, I'd always that that with a pinch of salt anyway...
I'd say by end April anyone who can benefit (and not everyone will!) from vectoring will be on a new profile.
New.provides will be profiled by updated prequals, existing lines may not be changed automatically as it would wipe any profiles that were changed by support staff. Prequals aren't 100% reliable, though its been mentioned that vdsl ones are more accurate than dsl.0 -
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It seems that I'm wedged between two profiles. It's a technical issue that should solve with an update to eircom systems in the next day or so. Though only 190m from the cab I was having difficulty with high attenuation and poor SNR at the higher profiles.
I was able to have my connection set at 85/20 'till the wee problems sorted.
Latest update gives -
With the temp profile Stats are now showing as -
======================================================
VDSL Port Details Upstream Downstream
Line Rate: 20.540 Mbps 87.211 Mbps
Actual Net Data Rate: 20.479 Mbps 87.041 Mbps
Trellis Coding: ON ON
SNR Margin: 9.2 dB 12.2 dB
Actual Delay: 5 ms 6 ms
Transmit Power: -13.9 dBm 12.3 dBm
Receive Power: -24.7 dBm -2.0 dBm
Actual INP: 2.0 symbols 2.0 symbols
Total Attenuation: 10.7 dB 14.4 dB
Attainable Net Data Rate: 23.344 Mbps 111.980 Mbps
======================================================
It should be able to sync at 100/200 -
It seems that I'm wedged between two profiles. It's a technical issue that should solve with an update to eircom systems in the next day or so. Though only 190m from the cab I was having difficulty with high attenuation and poor SNR at the higher profiles.
I was able to have my connection set at 85/20 'till the wee problems sorted.
Latest update gives -
With the temp profile Stats are now showing as -
======================================================
VDSL Port Details Upstream Downstream
Line Rate: 20.540 Mbps 87.211 Mbps
Actual Net Data Rate: 20.479 Mbps 87.041 Mbps
Trellis Coding: ON ON
SNR Margin: 9.2 dB 12.2 dB
Actual Delay: 5 ms 6 ms
Transmit Power: -13.9 dBm 12.3 dBm
Receive Power: -24.7 dBm -2.0 dBm
Actual INP: 2.0 symbols 2.0 symbols
Total Attenuation: 10.7 dB 14.4 dB
Attainable Net Data Rate: 23.344 Mbps 111.980 Mbps
======================================================
It should be able to sync at 100/20
Still no sign of vectoring I'm pretty sure I'm on the same cab as you as well I'm up long Lane0 -
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Thoughts on vectoring...
ALL cabinets will be completed by next week.
I am guessing most people will then be bulk upgraded in the coming weeks by their ISPs
People could still call and have it done manually although the prequal result will dictate the max profile.
The current max profile is 100/20 regardless of what your modulator/deomodulator tells you And in fact, I'd always that that with a pinch of salt anyway...
I'd say by end April anyone who can benefit (and not everyone will!) from vectoring will be on a new profile.
the max attainable will be the highest possible speed the modem can sync at but it will be unstable.
the max profile for non tv customers is 100mb/20mb but you'll only get that on a clean line with a cab 150m or less
90mb/20mb is the next speed upto 250m0 -
If ur on long lane, im guessing your connected to the manor view cabinet. I contacted digiweb today and they put me on the 70/20 profile even tho vectoring hasn't been enabled for me yet.
I know the attentuation is high and the SNR is low. i have been using this for 8.5 hours now and still no disconnects or errors. on speedtest im getting 60 down and 17 up
http://www.speedtest.net/my-result/3398034915
Right click on image and open in a new tab if u cant see it.0 -
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It's recently dropped to 58/18 alright was getting 61/20. I could be on a different cab I guess, but the eircom tech at the time it was installed said I was connected to Binnion ave cab. wait and see I guessHi Jimmad,
I'm opposite Gormley's here. I think you need to contact your ISP and request to be put on the new vectored profile. Your SNR is on the limit at 6 Tx/Rx, though with vectoring this will improve somewhat. Your getting 58/18 at the minute if my interpretation is correct - no expert.
BK posted an extract from Eircom's most recent NGA Technical Handbook which gives the various profiles available. These should apply to all the vendors, Attenuation, though important, is not an exact science with these new set-ups. Mine is very misleading as it shows quite high, even though I'm just up the road from the cab at Binnion. I put it down to quality of the copper to the house/poor connections rather than distance to the cab. I've been kept on the high stability (evision) profile at 85/20 though when I move back to the rate adaptive profile I'm assured of 100/20. My stats have jumped all over the shop as I moved from profile to profile since last May so I would not be too concerned just yet. 0 -
After switching profile first thing on Wednesday morning, there was no improvement in speed tests... I tested many many times....
Tested again in the early hours (3:50 am Thursday morning), and still no improvements... at this time of the morning traffic/crosstalk is not an issue....
However... after resetting the modem...
Current: (after vectoring):
Previous: (before vectoring):
Here's the complete story... might help others...- I noticed a substantial increase in the: Attainable Net Data Rate
- I contacted Eircom (by phone) and asked to be moved to higher profile... this took two calls as the first guy couldn't do it...
- Waited for the Line Rate in the xDSL Statistics to update... then started testing... no improvement in speed tests...
- Restarted the modem as a last resort and up came the new improved speed tests...
- Download Speed Test Increase: ~20 Mbps...
- Upload Speed Test Increase: Apparently this is not affected, even so, every test this morning reach 19 Mbps...
- Total Attenuation Increase: 0.8 dB (from 10.3 dB to 11.1 dB)...
- SNR Margin: Up: was 8.5 now 8.9 dB - Dn: was 9.1 now 13.6 dB...
- Current Attainable Net Data Rate: 28.338 Mbps - 134 Mbps Previous: 28.429 Mbps - 97.208 Mbps
Just to note, Attainable Net Data Rate is now down to 128.608 Mbps... what happened to my other 6 Mbps
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I'm now unsure if this is vectored or not, quite far from the cabinet (about 700m)
============================================================================ VDSL Training Status: Showtime Mode: VDSL2 Annex B VDSL Profile: Profile 17a Traffic Type: PTM Mode Link Uptime: 0 day: 0 hour: 8 minutes ============================================================================ VDSL Port Details Upstream Downstream Line Rate: 10.297 Mbps 41.116 Mbps Actual Net Data Rate: 10.239 Mbps 40.956 Mbps Trellis Coding: ON ON SNR Margin: 18.5 dB 13.4 dB Actual Delay: 4 ms 8 ms Transmit Power: 7.1 dBm 10.0 dBm Receive Power: -14.3 dBm -9.2 dBm Actual INP: 2.0 symbols 3.0 symbols Total Attenuation: 21.5 dB 19.3 dB Attainable Net Data Rate: 28.277 Mbps 70.276 Mbps ============================================================================ VDSL Band Status U0 U1 U2 U3 D1 D2 D3 Line Attenuation(dB): 5.9 30.8 46.3 N/A 15.6 39.1 60.8 Signal Attenuation(dB): 5.9 30.1 45.9 N/A 12.6 38.8 60.9 SNR Margin(dB): 19.1 18.0 18.8 N/A 13.4 13.4 13.5 Transmit Power(dBm):- 8.6 0.3 6.0 N/A 3.3 7.8 2.9 ============================================================================
EDIT:
From old post============================================================================ VDSL Training Status: Showtime Mode: VDSL2 Annex B VDSL Profile: Profile 17a Traffic Type: PTM Mode Link Uptime: 0 day: 5 hours: 56 minutes ============================================================================ VDSL Port Details Upstream Downstream Line Rate: 10.298 Mbps 41.116 Mbps Actual Net Data Rate: 10.238 Mbps 40.956 Mbps Trellis Coding: ON ON SNR Margin: 18.9 dB 13.9 dB Actual Delay: 7 ms 8 ms Transmit Power: 6.2 dBm 9.7 dBm Receive Power: -13.1 dBm -12.6 dBm Actual INP: 2.0 symbols 3.0 symbols Total Attenuation: 19.2 dB 22.3 dB Attainable Net Data Rate: 25.835 Mbps 67.816 Mbps ============================================================================ VDSL Band Status U0 U1 U2 U3 D1 D2 D3 Line Attenuation(dB): 6.0 31.7 47.8 N/A 16.0 40.3 62.6 Signal Attenuation(dB): 6.0 31.0 45.5 N/A 16.0 40.3 62.7 SNR Margin(dB): 18.7 18.6 19.1 N/A 13.9 13.9 13.9 Transmit Power(dBm):- 7.2 1.0 4.3 N/A 3.3 7.7 1.2 ============================================================================
It doesn't look like very much has changed.
Could vectoring have that little impact?0 -
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Nonoperational wrote: »I'd say you're not enabled yet. I'm outside Cork city and still no sign of it.
We're in the Wellington Road exchange area.
Given the distance to the cabinet though, I'm not really expecting a major boost in speed.
We're in a very old area, so the wiring routes would probably date back to the dawn of telecommunications At least there were PCP cabinets in place though. It's just that we're between two of them and almost equidistant.
There was a fairly big refurbishment of wiring done in the late 1990s though and everything's underground.0 -
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