OMG 17a VDSL now operational, my line goes from 56/11 to 80/34

Forums › New Zealand Broadband › OMG 17a VDSL now operational, my line goes from 56/11 to 80/34

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'That VDSL Cat'
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#1774265 2-May-2017 13:42

smalltrader:
Hi Richms,

I have been on VDSL for a couple of months now. In that time, DLM and then ddDLM have made quite a few profile changes (mostly speed increases which is good). However my latency is always around 19 - 20ms regardless of the different speed profiles. Just an observation.

19 is inline with 8/8. Which is normal. Dlm has 1ms, 8ms and 16ms profile options to put you onto. (Eachway)

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DarkShadow

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#1774277 2-May-2017 14:20

cddt:

You will never get the advertised speeds over wifi. Even if you're downloading a file off a machine on your network, you'll probably only get around 30 Mbps.

That's only true if you have a dodgy gear. I can get 200/200Mbps over WiFi, and there's a wall between me and the router (HG659).

KillerHulk

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#1774318 2-May-2017 15:31

DarkShadow:

cddt:

You will never get the advertised speeds over wifi. Even if you're downloading a file off a machine on your network, you'll probably only get around 30 Mbps.

That's only true if you have a dodgy gear. I can get 200/200Mbps over WiFi, and there's a wall between me and the router (HG659).

i am like within 2 feet of the router on the other side of the wall.

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allio

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#1774320 2-May-2017 15:42

richms:

Some changes there. Interleaved but still a 9dB margin so not sure if just resync for the sake of it to put it on terrible latency, or ddDLM happening.

Getting 23ms across the link now, Sigh. Chorus tech tomorrow at 3 so wonder how long it will be till I get back on a proper latency. Good thing im not really gaming anymore.

I woke up to interleaving a couple of days ago too. Sync speeds improved slightly at the same time (67/12 to 68/14). I figure it's just part of DLM doing its thing after the big change. I'm sure the interleaving will disappear on its own as long as the line remains stable.

littleheaven

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#1774406 2-May-2017 16:45

It could be equipment-related. I could only get around 3/4 of my actual line speed using the wifi on my Spark-supplied Technicolour VDSL modem/router, even when I right beside it with no walls in between. When I replaced it with an ASUS RT-AC68U router (bridged to aforementioned Technicolour) I instantly got almost exactly the same speeds on every wifi device all over the house as I was getting on the ethernet-connected ones. The guy who sold it to me warned that I might not get any improvement, but in my case it was substantial.

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hio77

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#1774502 2-May-2017 18:58

KillerHulk:
DarkShadow:

cddt:

You will never get the advertised speeds over wifi. Even if you're downloading a file off a machine on your network, you'll probably only get around 30 Mbps.

That's only true if you have a dodgy gear. I can get 200/200Mbps over WiFi, and there's a wall between me and the router (HG659).

i am like within 2 feet of the router on the other side of the wall.

Whats to say that wall is not solid iiridium?

Wireless is a conveyance feature and only as good as the hardware at both ends..... And the environment around it...

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MichaelNZ

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#1774556 2-May-2017 20:09

Rural Boost VDSL connection fed from an exchange. ~370m exchange to demarcation point. Was getting 30-35 / 7.5-8 before and now getting 58-63 / 22-23.

[redacted]#show controllers vdSL 0
Controller VDSL 0 is UP

Daemon Status: Up

XTU-R (DS) XTU-C (US)
Chip Vendor ID: 'BDCM' 'IKNS'
Chip Vendor Specific: 0x0000 0x0001
Chip Vendor Country: 0xB500 0xB500
Modem Vendor ID: 'CSCO' ' '
Modem Vendor Specific: 0x4602 0x0000
Modem Vendor Country: 0xB500 0x0000
Serial Number Near: FGXXXXXXXX 887VA-K9 15.3(3)M3
Serial Number Far: ^A
Modem Version Near: 15.3(3)M3
Modem Version Far: 0x0001

Modem Status: TC Sync (Showtime!)
DSL Config Mode: AUTO
Trained Mode: G.993.2 (VDSL2) Profile 17a
TC Mode: PTM
Selftest Result: 0x00
DELT configuration: disabled
DELT state: not running
Trellis: ON ON
SRA: disabled disabled
SRA count: 0 0
Bit swap: enabled enabled
Bit swap count: 0 0
Line Attenuation: 0.0 dB 0.0 dB
Signal Attenuation: 0.0 dB 0.0 dB
Noise Margin: 3.8 dB 7.1 dB
Attainable Rate: 52668 kbits/s 23096 kbits/s
Actual Power: 14.5 dBm 6.6 dBm
Per Band Status: D1 D2 D3 U0 U1 U2 U3
Line Attenuation(dB): 16.2 36.7 41.7 5.1 25.7 33.9 N/A
Signal Attenuation(dB): 16.2 36.7 41.7 5.1 25.3 33.7 N/A
Noise Margin(dB): 3.9 3.8 3.8 7.1 7.0 7.2 N/A
Total FECC: 248598 10108150
Total ES: 3294 331
Total SES: 30 5
Total LOSS: 16 0
Total UAS: 193 193
Total LPRS: 0 0
Total LOFS: 15 0
Total LOLS: 0 0

Full inits: 4
Failed full inits: 0
Short inits: 0
Failed short inits: 0

Firmware Source File Name (version)
-------- ------ -------------------
VDSL embedded VDSL_LINUX_DEV_01212008 (1)

Modem FW Version: 130205_1433-4.02L.03.A2pv6C035j.d23j
Modem PHY Version: A2pv6C035j.d23j
Vendor Version: Ap6v35j.23j 68

DS Channel1 DS Channel0 US Channel1 US Channel0
Speed (kbps): 0 69993 0 24806
SRA Previous Speed: 0 58714 0 21331
Previous Speed: 0 58714 0 21331
Reed-Solomon EC: 0 248598 0 10108150
CRC Errors: 0 953 0 74
Header Errors: 0 17096 0 0
Interleave (ms): 0.00 8.00 0.00 8.00
Actual INP: 0.00 1.00 0.00 0.10

Training Log : Stopped
Training Log Filename : flash:vdsllog.bin

[redacted]#

WFH Linux Systems and Networks Engineer in the Internet industry | Specialising in Mikrotik | APNIC member | Open to job offers | ZL2NET

hio77

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#1774655 2-May-2017 21:48

very nice!

one thing i note, your SNR is riding low. you may see a bit of a dip on a resync there.

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Eitsop

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#1774662 2-May-2017 21:51

sigh ↓ 31,9 Mbit/s↑ 8,0 Mbit/s

no change

beaglenz

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#1774718 3-May-2017 05:11

As the original poster I was so happy but overnight I dropped back to 8b. This may have been due to a power cut but the line was a bit dodgy yesterday as well. Sorry to post my Q in two threads but if I leave this alone will the DLM eventually bump me back up to 17a?