New FTTC connection/BT wiring questions :: Fibre Broadband

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deleted
(deleted) Tue 29-Sep-15 11:16:04

Re: New FTTC connection/BT wiring questions

[re: deleted] [link to this post]

No changes yet. Interleaving still on 799 and have been connected for 10 days without a resync. So pretty stable but would still like my G.INP switched on at some point...

deleted
(deleted) Tue 06-Oct-15 08:07:45

Re: New FTTC connection/BT wiring questions

[re: deleted] [link to this post]

Welp, the modem resynced this morning to 43.5Mbit - the highest I've had! I thought G.INP had been turned on but it's still showing as disabled. What has changed is my interleave depth has been changed from 799 to 1.

Also, attainable rate has reduced from 48Mbit-ish to the same as my sync speed. I guess G.INP might not take it up any higher than that then?

Text

DSLAM/MSAN type:                BDCM:0xa48c / v0xa48c
Modem/router firmware:          AnnexA version - A2pv6F039g1.d24mDSL mode:                       VDSL2 Profile 17a
Status:                         ShowtimeUptime:                         2 hours 2 min 25 sec
Resyncs:                        2 (since 05 Oct 2015 07:01:34) 
                                Downstream      UpstreamLine attenuation (dB):          22.2            0.0
Signal attenuation (dB):        Not available on VDSL2Connection speed (kbps):        43506           8489
SNR margin (dB):                6.3             6.1Power (dBm):                    11.9            2.7
Interleave depth:               1               1INP:                            0               0
G.INP:                          Not enabled 
RSCorr/RS (%):                  N/A             0.0000RSUnCorr/RS (%):                N/A             0.0000
ES/hour:                        0               0 
adsl info --statsadsl: ADSL driver and PHY status
Status: ShowtimeLast Retrain Reason:    1
Last initialization procedure status:   0Max:    Upstream rate = 8489 Kbps, Downstream rate = 43637 Kbps
Bearer: 0, Upstream rate = 8489 Kbps, Downstream rate = 43506 Kbps 
Link Power State:       L0Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 17aTPS-TC:                 PTM Mode(0x0)
Trellis:                U:ON /D:ONLine Status:            No Defect
Training Status:        Showtime                Down            Up
SNR (dB):        6.2             6.1Attn(dB):        22.2            0.0
Pwr(dBm):        11.9            2.7 
                        VDSL2 framing                        Bearer 0
MSGc:           18              26B:              239             239
M:              1               1T:              64              44
R:              0               0S:              0.1756          0.8985
L:              10936           2137D:              1               1
I:              240             120N:              240             240

deleted
(deleted) Tue 06-Oct-15 08:34:31

Re: New FTTC connection/BT wiring questions

[re: deleted] [link to this post]

In reply to a post by CaptainJack:
Also, attainable rate has reduced from 48Mbit-ish to the same as my sync speed. I guess G.INP might not take it up any higher than that then?

It is a common issue that, when old-style DLM intervened, the attainable speed often rose by around the same amount as the actual speed reduced ... with both changes being reversed when DLM removed the intervention.

That looks to have happened to you - with no sign of G.INP arriving.

Some sync speeds have improved with the switch-on of G.INP, even beyond the speed attained with no DLM intervention.It isn't obvious why this has happened.

deleted
(deleted) Tue 06-Oct-15 08:38:07

Re: New FTTC connection/BT wiring questions

[re: deleted] [link to this post]

OK, that makes sense. Is it safe to say that even if G.INP ever gets enabled on my line, I am unlikely to benefit? Except maybe make it more stable...

RobertoS
(elder) Tue 06-Oct-15 09:50:08

Re: New FTTC connection/BT wiring questions

[re: deleted] [link to this post]

Correct re the speed. Not really re improving stability.

G.INP is basically an alternative mechanism to Interleaving, using Bearer 1 to retransmit corrupted packets. It looks as though DLM has decided your line can, at the moment, run on Fast Path. As such, it will be connecting as fast as it can.

_{^{The indispensable man or woman passes from the scene, and what happens next is more or less the same thing as was happening before.}}
My broadband basic info/help site - www.robertos.me.uk. Domains, site and mail hosting - Tsohost.
Connection - AAISP Home::1 80/20. Sync 59999/14372kbps @ 600m. - BQM

deleted
(deleted) Tue 06-Oct-15 10:30:33

Re: New FTTC connection/BT wiring questions

[re: RobertoS] [link to this post]

Yep. Another improvement is the latency. Gone from 25ms-ish to 15ms-ish, so that's nice too.

deleted
(deleted) Wed 07-Oct-15 10:23:27

Re: New FTTC connection/BT wiring questions

[re: RobertoS] [link to this post]

Aaaand I am back to interleaving!

Reason: 1 Remote Defect Indicator/DLM

Current Downstream Sync Rate is now 39838kbps
Current Upstream Sync Rate is now 8537kbps

Blah frown

deleted
(deleted) Sat 10-Oct-15 09:25:25

Re: New FTTC connection/BT wiring questions

[re: RobertoS] [link to this post]

G.INP has been enabled this morning! laugh

Download speed is over 46Mbit, so just 4Mbit under Zen's predicted speed.

Let's hope it keeps.

deleted
(deleted) Sat 10-Oct-15 11:28:33

Re: New FTTC connection/BT wiring questions

[re: deleted] [link to this post]

Is that the sync speed?

deleted
(deleted) Sat 10-Oct-15 16:50:59

Re: New FTTC connection/BT wiring questions

[re: deleted] [link to this post]

Yes, sync speed as opposed to actual download, which will be a little lower.

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