Vectoring

I believe vectoring is an integral part of G.Fast, but for the last few weeks I have seen many posts implying or suggesting it can be set by G.INP or their router on the standard VDSL2, particularly on Huawei cabinets, but no contradictions when these posts appear.

This post by Andrew implies it is available universally on Huawei cabinets. I thought it was only when G.Fast was also present, and on some BDUK installations.

However, if some user modems do not have it enabled, (the default?), surely the vectoring will be screwed for those where it is enabled.

G.fast vectoring has nothing to do with vectoring on VDSL2

Different hardware, different parts of the radio spectrum

AFAIK vectoring on standard FTTC cabs was only done on a trial basis but it was never rolled out to all Huawei cabs. I don�t think it�s gone beyond the trial phase, ie mass rollout.

Edited by deleted (Fri 02-Aug-19 11:41:40)

Vectoring was also rolled out to BDUK funded Huawei cabs. I happen to be connected to one and can confirm that my modem shows that vectoring is active.

I thought it was only when G.Fast was also present, and on some BDUK installations

A Huawei VDSL2 cabinet without Vectoring would not suddenly have Vectoring if a G.Fast pod was added to the PCP.

VDSL2 Vectoring and G.Fast Vectoring are completely independent and 1 isn't required for the other.

I've never come across a VDSL2 modem that lets me disable Vectoring, though their existence would not surprise me.

There are many VDSL2 modems (including some very large ISP's CPE) that simply don't support Vectoring.

There should not be any G.Fast modems that don't support Vectoring and 1 would hope there are none that allow it to be disabled.

edit: auto correct mistakes.

Edited by j0hn83 (Fri 02-Aug-19 12:11:09)

In reply to a post by mikel543:

Vectoring was also rolled out to BDUK funded Huawei cabs.

Vectoring was also rolled out to some, targeted BDUK funded Huawei cabs.

I added the bit in bold to avoid any confusion from your post.

In reply to a post by mikel543:

Vectoring was also rolled out to BDUK funded Huawei cabs. I happen to be connected to one and can confirm that my modem shows that vectoring is active.

Really? Any screenshot

I did think that, but was unsure. But it doesn�t answer the question .

In reply to a post by RobertoS:

However, if some user modems do not have it enabled, (the default?), surely the vectoring will be screwed for those where it is enabled.

The default should be that it's enabled - it's harmless having it enabled if not supported by the VTU-O / XTU-C.

Vectoring doesn't work as well but isn't 'screwed'. The options, depending on the operator and rules about attaching devices, are to just remove those devices from the vectored group and deal with it or, if devices must be complaint, shut their ports down until compliant devices are attached.

They're easy enough for an operator to spot. In their LR-VDSL trials Openreach just removed them from the vectored group.

In reply to a post by adslmax:

In reply to a post by mikel543:

Vectoring was also rolled out to BDUK funded Huawei cabs. I happen to be connected to one and can confirm that my modem shows that vectoring is active.

Really? Any screenshot

We covered this extensively on the Kitz forum. You must've seen those?

Where it brought lines into the superfast range to achieve coverage targets vectoring was sometimes enabled. There are a few people who've noted it's enabled on there.

In reply to a post by j0hn83:

I've never come across a VDSL2 modem that lets me disable Vectoring, though their existence would not surprise me.

The Asus DSL-AC68U modem certainly has the option to disable vectoring:

https://community.bt.com/t5/image/serverpage/image-i...

In reply to a post by brookheather:

In reply to a post by j0hn83:

I've never come across a VDSL2 modem that lets me disable Vectoring, though their existence would not surprise me.

The Asus DSL-AC68U modem certainly has the option to disable vectoring:

https://community.bt.com/t5/image/serverpage/image-i...

No surprise.
It's the only device I've seen that also allows UPBO to be disabled which isn't supposed to be a configurable option either.
They really are the worst devices.

With G.INP automatically disabled on these devices I see no reason anyone would choose to use 1 on a Huawei cabinet at all, never mind with Vectoring disabled.

IIRC the HG612 allows it, and in its (Asbokid-hacked, but he said he altered no settings, just enabled telnet) Openreach configuration it was disabled. My Zyxel 1312 also allowed it to be disabled. I think that also defaulted to disabled in the latest firmware version I downloaded from Zyxel's website.

In reply to a post by RobertoS:

IIRC the HG612 allows it, and in its (Asbokid-hacked, but he said he altered no settings, just enabled telnet) Openreach configuration it was disabled. My Zyxel 1312 also allowed it to be disabled. I think that also defaulted to disabled in the latest firmware version I downloaded from Zyxel's website.

Can you point out where the Vectoring option is on the Zyxel? I can't find it in my WebUI.
Only has PhyR, SRA and bitswap.

I'd have to find the Zyxel first. I'm completely on mobile broadband now.

In reply to a post by adslmax:

In reply to a post by mikel543:

Vectoring was also rolled out to BDUK funded Huawei cabs. I happen to be connected to one and can confirm that my modem shows that vectoring is active.

Really? Any screenshot

Certainly: https://i.imgur.com/pDQpCwr.png

In reply to a post by RobertoS:

I'd have to find the Zyxel first. I'm completely on mobile broadband now.

I believe the option doesn't exist.

I think you may be confusing the xDSL Statistics page that shows "G.Vector: Disable" with a configurable option.

The "G.Vector: Disable" is simply the lines current Vectoring status.

I don't think the HG612 had a configurable Vectoring option either.
When initially released the HG612 firmware blob did not support Vectoring, but a later firmware added support.

Very different to being able to disable it.

Fair enough .