GEA Report
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- Re: GEA Report
GEA Report
14-08-2019 6:26 PM
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Please can I have a GEA test, showing all parameters.
Reason: Suspected Interference.
Re: GEA Report
15-08-2019 10:19 AM - edited 15-08-2019 10:20 AM
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Hi @dws1900,
Here are the results of the GEA test:
GEA Test Detail | |||
Circuit ID | NA | Service ID | BBEUXXXXXXXXX |
Test Outcome | Pass | ||||
Test Outcome Code | GTC_FTTC_SERVICE_0000 | ||||
Description | GEA service test completed and no fault found . | ||||
Main Fault Location | OK | ||||
Sync Status | In Sync | ||||
Downstream Speed | 22.8 Mbps | ||||
Upstream Speed | 1.9 Mbps | ||||
Appointment Required | N | ||||
Fault Report Advised | N | ||||
NTE Power Status | PowerOn | ||||
Voice Line Test Result | Pass | ||||
Bridge Tap | Not Detected | ||||
Radio Frequency Ingress | Not Detected | ||||
Repetitive Electrical Impulse Noise | Not Detected | ||||
Cross Talk | Detected | ||||
Estimated Line Length In Metres | 1518.6 | ||||
Upstream Rate Assessment | Very Good | ||||
Downstream Rate Assessment | Very Good | ||||
Interference Pattern | Not Detected | ||||
Service Impact | No Impact Observed | ||||
Home Wiring Problem | Not Detected | ||||
Downstream Policing Discard Rate | 0.0 | ||||
Customer Traffic Level | Upstream and Downstream Traffic Detected | ||||
Technology | VDSL | ||||
Profile Name | 0.128M-40M Downstream 3dB, Retransmission Low - 0.128M-10M Upstream, Error Protection Off | ||||
Time Stamp | 2019-08-02T10:15:00 |
Parameters | MIN | MAX | AVG |
Down Stream Line Rate | 22.6 Mbps | 22.8 Mbps | 22.8 Mbps |
Up Stream Line Rate | 1.8 Mbps | 2.0 Mbps | 1.8 Mbps |
Up Time | 0.0 Sec | 900.0 Sec | 887.4 Sec |
Retrains | 0.0 | 1.0 | 0.0 |
Current and Last 15 Minute Bin Performance | ||
Parameters | Last Traffic Count(Upto 15 mins) | Current Traffic Count(Upto 15 mins) |
Start Time Stamp | 2019-08-15T08:45:34Z | 2019-08-15T09:00:34Z |
Ingress Code Violation | 0 | 0 |
Egress Code Violation | 0 | 0 |
Errored Seconds | 0 | 0 |
Severely Errored Seconds | 0 | 0 |
Unavailable Seconds | 0 | 0 |
Re: GEA Report
15-08-2019 10:29 AM
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Thank You.
Looks like its not interference, more like crosstalk.
A quick question, the Down Stream Line Rate, is this the rate quoted when you sign up as the minimum speed, and is the same as the Downstream Handback Threshold(Mbps) for a VDSL Range A (Clean) line as quoted on the BT Availability Checker?
My Downstream Handback Threshold(Mbps) according my extensive collection of the BT Availability Checker reports, sad I know actually varies, from 16.5 to 17.7 Mbs over the last 12 months, is this normal?
Re: GEA Report
15-08-2019 4:14 PM
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I'm afraid it does look that way. We can try and go down a fault route if you'd like.
The downstream line rate that's quoted as a minimum guaranteed speed is normally always the low impacted reading on the dsl checker (VDSL Range B (Impacted)). As far as I understand the Downstream Handback threshold is an MGAL illustration, which is the 10th percentile of speed for the line (with A being the 80th and B being the 20th percentile), I believe the handback allows you to give an indication of the MGAL for a line before actually ordering a service with an ISP (or at least if they have an active service in the OR network when placing an order). Confusing but I've found this that might be useful for you, if you're interested.
Re: GEA Report
15-08-2019 4:27 PM
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Thanks for your reply.
No need for a fault, the connection rate is 22Mbs, but the throughput is reducing due to crosstalk.
This raises the GBP-Mbs ratio, ie getting less for the same or higher fee's, so I am obliged by the financial controller to investigate alternatives and present my cost/technical result.
Thanks for the link to the Openreach document.
Re: GEA Report
15-08-2019 7:06 PM
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Did you ever determine if your connection has vectoring? If so, does it?
Re: GEA Report
15-08-2019 7:10 PM - edited 15-08-2019 7:12 PM
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Hi
I don't believe it is, but here are the line statistics.
The modem is a Vigor 2860
Line 1 Information (VDSL2 Firmware Version: 576D17_A/B/C with Vectoring support )
Line Statistics | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Re: GEA Report
15-08-2019 7:33 PM
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Those statistics do not indicate the vectoring status. Drayteks put that information somewhere else.
For example, in the 4th screenshot on http://www.itropics.net/computers/networking/171-setup-iinet-fttn-vdsl2-nbn-on-draytek-vigor-2760
Re: GEA Report
15-08-2019 8:41 PM
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There you go...
No Vectoring Active message
Line 1 Information (VDSL2 Firmware Version: 576D17_A/B/C with Vectoring support ) |
Profile | State | UP Speed | Down Speed | SNR Upstream | SNR Downstream |
17A | SHOWTIME | 1,920 (Kbps) | 22,835 (Kbps) | 6 (dB) | 1 (dB) |
Re: GEA Report
16-08-2019 7:20 AM
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hi what sync speed do u actually get if you set your snrs to normal ? and is it in speeds that the dsl checker says it should be if not i would raise a fault and get an engineer to sort the issue you shouldnt be having to lower your snr to 1 the throughput would be flakey with a snr of 1 try normal snrs and see what happens
Re: GEA Report
16-08-2019 8:33 AM
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The rates etc are over the last 24 hours
min/max/avg/current
vigor.Rate Attainable | 21.043 Mbps | 22.081 Mbps | 21.435 Mbps | 21.195 Mbps |
vigor.RX Current | 22.84 Mbps | 22.84 Mbps | 22.84 Mbps | 22.84 Mbps |
vigor.snr | 1.000 dBm | 1.917 dBm | 1.009 dBm | 1.000 dBm |
vigor.Attenuation | 32.00 dBm | 32.00 dBm | 32.00 dBm | 32.00 dBm |
In another post which you remarked on I explained that the snr was dropped to squeeze out a bit more speed frpm a 1500m line, with an extra 128 line capability bolted on the side, and crosstalk.
The snr at 3db makes the throughout tests speeds sligtly lower, The tests were carried out every 15 minutes using a cli version of speedtest and fed to the overall graphing system, this is how I detected the throughput speeds dropping at 18:00 - 00:00 every day. After protracted discussions with PN earlier this year, this was fixed by a magic spell (no engineers required) , and has been ok ever since.
In that incident the throughput speed was 4Mbs at times, well below the BT handoff speed and expected speed range.
This was confirmed by a BT speed test.
But this is not the speed they go on to determine an issue is it?. If they did then they would be in undated with calls as people would not understand the reason for direct connections to the master box, and doing the test under controlled conditions.
Using better equipment and a Huawei dslam allows some tweaking, I did the same when I was on adsl.
REIN on that setup knocked speed down by 4Mbs and caused a jump in the snr. REIN source was 40m away.
The speed at 1dB or 3db or any other snr would only be flakey if the noise exceeded the signal.
PS how you getting on with your Plan B 4G option?
Re: GEA Report
16-08-2019 2:09 PM
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yeah but what im saying is just cause your syncing at a higher rate by tweaking your snr the throughput will be worse than if your line had a higher snr and a slightly lower sync speed i used to do it aswell on adsl2 connection have you tried a higher snr and checked the throughput?
Re: GEA Report
16-08-2019 2:11 PM
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i dont need to go ahead now with the 4g plan as my line has been fixed
6. | Data Rate: | 20000 / 79987 |
---|---|---|
7. | Maximum Data Rate: | 31099 / 82946 |
8. | Noise Margin: | 12.6 / 6.5 |
9. | Line Attenuation: | 19.3 / 14.3 |
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