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[digitalis]

My bosses connection just dropped, it's come back up with the highest sync ever seen (66mb) and the draytek says Vectoring active

[digitalis]

In a bit of a rush so I'll add more details later, but look below. I don't think it's a bug on the draytek because Vectoring certainly wasn't there before the line drop

[digitalis]

G997 is a strange one?

Line stats

Code: [Select]

ATU-R Information

         Type: VDSL2
         Hardware: Annex A
         Firmware: 05-07-06-0D-01-07
         Power Mngt Mode: DSL_G997_PMS_L0
         Line State: SHOWTIME
         Running Mode: 17A
         Vendor ID: b5004946 544e0000

ATU-C Information

        Vendor ID: b5004244 434da48c [BDCM] 

Line Statistics
     
 Downstream             Upstream                 
Actual Rate 66294 Kbps 18660 Kbps
Attainable Rate 65666 Kbps 18661 Kbps
Path Mode Fast Fast
Interleave Depth 1 1
Actual PSD  7. 7 dB  13. 9 dB



[Moderator edited to remove multiple blank lines.]

[S.Stephenson]

Is it a BDUK cabinet?

[digitalis]

Yes.

[S.Stephenson]

Makes sense it was always on the cards that BTs implementation of Vectoring was going to be very limited and only really used to help meet BDUK targets for the time being.

If only they'd fully roll it out. 

What improvement did vectoring give this line?

[digitalis]

Went from 52mb pre-G.INP to 60mb G.INP, then a further boost to 66mb with Vectoring

[WWWombat]

Oooh... that's certainly the right symptom to be looking for.

Can you tell if you're getting more or less errors? With G.INP active, you'd be looking at the FEC rate and the retransmission-transmitted counter.

Knowing the distance and attenuation can help too. However, I know very little about the Drayteks. I'm not sure which of the two attenuation figures we should use as the Downstream attenuation. If it is the 26dB value, then that's a good speed. If it is the 18dB, then it is merely decent.

G997 is a strange one?

Code: [Select]

         Power Mngt Mode: DSL_G997_PMS_L0
         Line State: SHOWTIME


G.997 is all about the mechanisms for network management of a DSL physical link - which is the mechanism by which the link behaviour can be altered (such as setting the line profiel by DLM) or be manipulated (eg, by forcing a diagnostic mode).

PMS is likely to be a "power management state"; L0 likely means full showtime, with everything transmitting.

[digitalis]

Not sure, I forgot to set up remote management so will have to check again tomorrow.

Is Vectoring a new thing or am I just late to the party? Can't find much info on it.

[Black Sheep]

Vectoring technology per-se is not a new thing ............ having it applied to the UK DSLAM's is. 

[niemand]

There are a few bits of it out there for sure, was announced a few months ago that it was going to be applied hither and thither on a 'tactical' basis.

It's not getting fully rolled out. Lots of expense for very little gain.

[gt94sss2]

Does it actually cost any extra on a Huawei cabinet though? In that as I understand it, those line cards already support vectoring so it's largely just a config change?

Of course, those on ECI cabinets wouldn't be so happy not if Openreach did this.

[niemand]

Does it actually cost any extra on a Huawei cabinet though? In that as I understand it, those line cards already support vectoring so it's largely just a config change?

It needs install of a Vectoring Engine Board.

If it were just config it'd already be rolled out.

[Black Sheep]

There are a few bits of it out there for sure, was announced a few months ago that it was going to be applied hither and thither on a 'tactical' basis.

It's not getting fully rolled out. Lots of expense for very little gain.

TBH, it's actually very little expense for OR to make a vector-capable Cab 'live'. The gains are mainly between 10-16% of extra bandwidth, so I suppose the decision lies with the EU as to whether the gain is worth it ...... for free ?? 

[niemand]

The VEBs do cost a few quid and a few tens of thousands of them add up, especially when it's being done for absolutely no commercial benefit to Openreach.

Useful alongside LR-VDSL to hit BDUK and USC targets definitely. No real point in putting them into cabinets like the ones covering me.