I have swapped to the HG612 and obtained the highest sync I've ever seen on my line (just shy of 70,000 kbps), running SP08 firmware G.INP supported.

This is almost +10 Mbps up on what my line was previously capable of, so quite an improvement. Shame as I plan to downgrade back to 40/10 next month (cannot justify the price any more).

Anyway, when I swapped over, I tried to keep the number of re-syncs (router swaps/router reboots etc) to a minimum to avoid upsetting the DLM. As others have said, looks like DLM may have banded you but if you leave it alone, things should restore to what they were before.

Whilst I'm here, I wanted to ask a question (to anyone reading). Is it possible to determine the kind of cabinet I'm connected to (without physically looking at it) from the modem stats? I tried to google this and found no useful answers on the subject. Would be handy to at least know if the Huawei modem I'm now running is actually on a Huawei cab.

Edited by deleted (Thu 16-Apr-15 15:03:23)

Yes you could argue with Sky that your current equipment is not compatible with G.INP and they should give you a new Hub to replace the modem.

As far as the banded profile goes, it might reset once new equipment is put on the line but there is a slim chance of that happening... TBH I've not had any experience with banded profiles so hopefully someone else could shine some light on it, however I would assume the DLM will re-profile the line at some point after a length of uptime.

If you telnet into the locked HG612 and run

xdslcmd info --pbParams

(the upper case P matters) the band plan results are apparently different and a few people, not including me, can tell from those.

Edited by RobertoS (Thu 16-Apr-15 17:11:03)

In reply to a post by RobertoS:

If you telnet into the locked HG612 and run

xdslcmd info --pBparams

(the upper case B matters) the band plan results are apparently different and a few people, not including me, can tell from those.

NO...

xdslcmd info --pbParams

An uppercase P

Here you go:

xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status:   0
Max:    Upstream rate = 29033 Kbps, Downstream rate = 67736 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 69112 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3959)
Medley Phase (Final) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3959)
                  VDSL Port Details               Upstream                Downstream
Attainable Net Data Rate:           29033 kbps              67736 kbps
Actual Aggregate Tx Power:             6.9 dBm               12.5 dBm
====================================================================================
        VDSL Band Status                U0              U1              U2              U3              U4              D1              D2              D3
  Line Attenuation(dB):  3.9     19.1    28.6     N/A     N/A    10.8    25.0    38.7
Signal Attenuation(dB):  3.9     18.6    27.9     N/A     N/A    14.7    24.8    38.8
                SNR Margin(dB):  11.6    11.7    11.7     N/A     N/A    5.9     5.9     5.9
                 TX Power(dBm): -5.1    -23.8    6.6      N/A     N/A    8.3     7.7     6.9

Indeed to goodness .

Thanks, will edit immediately.

Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3959)

It's a Huawei

In reference to forums.thinkbroadband.com/fibre/t/4257930-re-huawei-hg612-working-a...:

Yep.

This confirms it's an ECI DSLAM:-

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)




This is the band plan for a Huawei DSLAM:-

Discovery Phase (Initial) Band Plan
US: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,3959)

The U0 with (0,95) always interests me. As D1 starts at 33, how can 33 to 95 be used for both up and down?

The U0 is variable in width, to allow for a slightly high upstream speed on long lines. I might expect to see (x,95) in the discovery phase, however, I would have though negotiation would have agreed the U0/D1 boundary and it reflected in the medley phase.

On my modem, connected to a Huawei cabinet I see:

US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)

Where U0 stops at tone 32!

Edited by MHC (Thu 16-Apr-15 20:36:50)

Ta!

How do you "Automated Hourly HTTPx5 TBB Speed Tests"?