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[pj2014]

Hey all,

Recently changed providers (BT >Plusnet) and took the opportunity to upgrade from ADSL to FTTC. (BT adsl > Plusnet FTTC 80/20 product).

Been on fibre for around a month and everything seems to be just fine (touch wood). (50 odd down and 11 up). Reading posts on here and comparing values obtained from telnet into HG612, it appears something may be amiss on the downstream front.

Just wondered if anyone could kindly glance over the stats and provide analysis/interpretation + if I should just leave it alone and enjoy or if I need to fix something. I've added the info below (the query being the sections in bold)
Some attachments which may help have been added.(Bitloading, Hlog and QLN)
cheers!
------------------------------------------------------

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Last initialization procedure status:   0
Max:    Upstream rate = 12800 Kbps, Downstream rate = 54376 Kbps
Bearer: 0, Upstream rate = 13169 Kbps, Downstream rate = 56368 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) (2793,3496)
----------------------------------

background

Only 1 BT socket. No extensions, hence no difference from faceplate port or master socket port behind it. 2 metre shielded modem cable. HG612 (unlocked) used as a modem and HG635 doing the routing and wireless. Huawei cabinet.

[pj2014]

Another attachment with the #xdslcmd  information
cheers

[underzone]

All looks ok to me. Those Huawei cabs are great, 54Mbps over a 21dB line. Just be glad you are not on an ECI cab!

[pj2014]

@underzone

Thank you for taking the time to look over it for me. Yup, its been working fine for almost 30 days, its a new cabinet so I expect crosstalk to rear its ugly head at some point once many people switch over to FTTC.

Speed is exactly as BT estimated on the checker. I thought I was 450m from the cabinet but it seems more like 600m!

many thanks.

[Ronski]

If you are asking why the bands are different, the discovery bands show what's supported (Huawei and ECI supprt slightly different bands) and the Medley bands are what are usable, the further from the cab or the lower quality of your line the lower the bands that are usable, basically the higher the bands the higher frequencies so do not travel so far. Every line is different, different joints, different cable quality (thickness/copper/ally), different interference so they all perform differently.

If your are really lucky you could be on a BDUK Huawei cabinet which has vectoring enabled, so may not suffer from cross talk.

[pj2014]

Thank you for that explanation Ronski. I was wondering why those tones were not present, your explanation addresses that perfectly.

cheers!