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Author Topic: New to VDSL, do my stats look ok?  (Read 5998 times)

lewisp8

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New to VDSL, do my stats look ok?
« on: April 02, 2015, 12:11:02 PM »

Hi, I've always used VM for my broadband but after moving to a new property last year that is not cabled i can no longer use their service, despite the fact VM have a cab on 50 yards down my street and the house opposite me is cabled >:(  Anyway i don't want to talk about that as it just gets me angry. At this new house i have been waiting for BT to install a FTTC cab, one was put in last August  but only became live this February. My service was recently installed using one of openreaches contractors (M.J.Quinn) who where useless and did a real bodge job, he just used the normal ADSL micro filters instead of fitting a new VDSL faceplate, which i later did my self. Initially using the HH5 we where syncing at around 16Mb/s which was far short of the 23Mb/s that BT estimated (our line is about 1KM to the cabinet), i then bought the HG612 modem as apparently they preform better and unlocked it with the latest firmware and now i sync at roughly 22Mb/s. My actual download speed is only 19Mb/s for some reason though. My MDWS name is: lewisp8 Does everything look OK for a 1KM line or is there something there something amiss? There may be a couple of disconnects, that's my wife who kept unplugging the modem for the hoover :-X (she's been told now)!

Thanks!
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NewtronStar

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Re: New to VDSL, do my stats look ok?
« Reply #1 on: April 02, 2015, 05:17:03 PM »

Just looking into your stats now and your DS (downstream) has D1 band but your not able to use the D2 band which would give you more downstream sync, maybe you could post your pbParams this would give us your current BandPlan, don't like the large dip in the D1 band but that maybe due power cutback to stop your line interfereing with the ADSL customers.

I am also 1km from the FTTC cab and yet my downstream sync is 32922kbps but no two line are the same due to the Copper/Ali pathways and the condition of the cable.

« Last Edit: April 02, 2015, 05:25:33 PM by NewtronStar »
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lewisp8

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Re: New to VDSL, do my stats look ok?
« Reply #2 on: April 02, 2015, 09:22:41 PM »

Just looking into your stats now and your DS (downstream) has D1 band but your not able to use the D2 band which would give you more downstream sync, maybe you could post your pbParams this would give us your current BandPlan, don't like the large dip in the D1 band but that maybe due power cutback to stop your line interfereing with the ADSL customers.

I am also 1km from the FTTC cab and yet my downstream sync is 32922kbps but no two line are the same due to the Copper/Ali pathways and the condition of the cable.

Hi thanks for you reply, i only wish i could get a sync speed like yours! these are the pbParams

xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   0
Last initialization procedure status:   0
Max:   Upstream rate = 4331 Kbps, Downstream rate = 21184 Kbps
Bearer:   0, Upstream rate = 4334 Kbps, Downstream rate = 21793 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)
DS: (33,859)
     VDSL Port Details        Upstream        Downstream
Attainable Net Data Rate:        4331 kbps          21184 kbps
Actual Aggregate Tx Power:          7.1 dBm           10.5 dBm
====================================================================================
  VDSL Band Status   U0   U1   U2   U3   U4   D1   D2   D3
  Line Attenuation(dB):   12.3   60.4   N/A   N/A   N/A   24.1   73.7   N/A
Signal Attenuation(dB):   12.3   59.7   N/A   N/A   N/A   38.6   N/A   N/A
        SNR Margin(dB):   5.8   5.8   N/A   N/A   N/A   5.4   N/A   N/A
         TX Power(dBm):   0.8   6.0   N/A   N/A   N/A   10.5   N/A   N/A
#
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burakkucat

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Re: New to VDSL, do my stats look ok?
« Reply #3 on: April 02, 2015, 09:38:12 PM »

As you have experienced the "services" of an Openreach contractor, there is a possibility that improvements to the wiring may be possible.

I'll ask a few questions, if I may . . .

Is the house a brand-new build? If not, was it built in (say) the last 20 years? Do you know where the PCP is located, through which your circuit is connected? Do you know where it's fibre twin is located? Could you estimate the approximate distance from your home?

Please describe the current state of the wiring. Does it arrive as an underground feed or via an aerial drop-cable? Do you have any telephone extension sockets? If yes, how are they wired? What do you normally have connected to the socket(s)?
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Bald_Eagle1

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Re: New to VDSL, do my stats look ok?
« Reply #4 on: April 02, 2015, 09:54:20 PM »

Something doesn't look quite right about your pbParams data.

This is mine:-

Code: [Select]
xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 5576 Kbps, Downstream rate = 22136 Kbps
Bearer: 0, Upstream rate = 4999 Kbps, Downstream rate = 22399 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) (2793,3970)
Medley Phase (Final) Band Plan
US: (7,32) (871,1200)
DS: (33,859) (1216,1783)
  VDSL Port Details   Upstream   Downstream
Attainable Net Data Rate:      5576 kbps     22136 kbps
Actual Aggregate Tx Power:        6.7 dBm      12.8 dBm
 =========================================================================================
  VDSL Band Status U0 U1 U2 U3 U4 D1 D2 D3
  Line Attenuation(dB): 8.1 53.2   N/A   N/A   N/A 21.7 65.3   N/A
Signal Attenuation(dB): 8.1 52.4   N/A   N/A   N/A 30.4 65.0   N/A
SNR Margin(dB): 6.4 6.7   N/A   N/A   N/A 6.0 6.1   N/A
TX Power(dBm): -1.0 5.9   N/A   N/A   N/A 11.6 6.3   N/A


I can see that you are connected to a Huawei DSLAM from your band plans

BUT, your DS Discovery phase band plan stops at tone 3959.
That's a very old value from a previous firmware version.

Older firmware versions weren't apparently G.INP capable, but the fact that Bearer 1 is displayed with zero values in your stats suggests that G.INP is actually active on your connection.

Could you tell us which firmware & software versions you have in your modem?

I know you say you have used the latest firmware version, but your DS Discovery phase band plan should be the same as mine (also a Huawei DSLAM):-
(DS: (33,859) (1216,1961) (2793,3970) )


These the latest versions:-

software version: V100R001C01B030SP08
xdsl firmware version: A2pv6C038m.d24j
cpu version: BCM6368
cfe version: 1.0.37-102.6


Just for reference, I have attached the important 'snapshot' graphs montage for my connection, as obtained at 18:00 today, along with the combined Bitloading & SNR graph.


« Last Edit: April 02, 2015, 09:57:55 PM by Bald_Eagle1 »
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lewisp8

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Re: New to VDSL, do my stats look ok?
« Reply #5 on: April 02, 2015, 09:58:27 PM »

As you have experienced the "services" of an Openreach contractor, there is a possibility that improvements to the wiring may be possible.

I'll ask a few questions, if I may . . .

Is the house a brand-new build? If not, was it built in (say) the last 20 years? Do you know where the PCP is located, through which your circuit is connected? Do you know where it's fibre twin is located? Could you estimate the approximate distance from your home?

Please describe the current state of the wiring. Does it arrive as an underground feed or via an aerial drop-cable? Do you have any telephone extension sockets? If yes, how are they wired? What do you normally have connected to the socket(s)?


Hi, the house i believe was built in the late 70's. The PCP, is across the road from the fiber cabinet (10M at most), if i follow the roads at the shortest route it is about 0.9KM but at the longest route it is about 1.1KM from my property also the line is fed via a aerial drop. The wiring inside the house is quite modern as the house was separated in to two in 2006, my side is the side with the new wiring and also a new telegraph pole was erected also as it is dated 2006 which fits in with the separation of the houses. There are no extensions line at all (just the master socket) which only a 3 twisted pairs going to it however only 1 is utilized. I have attached the broadband speed test info, and BT's ADSL checker info.


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lewisp8

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Re: New to VDSL, do my stats look ok?
« Reply #6 on: April 02, 2015, 10:11:09 PM »

Something doesn't look quite right about your pbParams data.

This is mine:-

Code: [Select]
xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 5576 Kbps, Downstream rate = 22136 Kbps
Bearer: 0, Upstream rate = 4999 Kbps, Downstream rate = 22399 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) (2793,3970)
Medley Phase (Final) Band Plan
US: (7,32) (871,1200)
DS: (33,859) (1216,1783)
  VDSL Port Details   Upstream   Downstream
Attainable Net Data Rate:      5576 kbps     22136 kbps
Actual Aggregate Tx Power:        6.7 dBm      12.8 dBm
 =========================================================================================
  VDSL Band Status U0 U1 U2 U3 U4 D1 D2 D3
  Line Attenuation(dB): 8.1 53.2   N/A   N/A   N/A 21.7 65.3   N/A
Signal Attenuation(dB): 8.1 52.4   N/A   N/A   N/A 30.4 65.0   N/A
SNR Margin(dB): 6.4 6.7   N/A   N/A   N/A 6.0 6.1   N/A
TX Power(dBm): -1.0 5.9   N/A   N/A   N/A 11.6 6.3   N/A


I can see that you are connected to a Huawei DSLAM from your band plans

BUT, your DS Discovery phase band plan stops at tone 3959.
That's a very old value from a previous firmware version.

Older firmware versions weren't apparently G.INP capable, but the fact that Bearer 1 is displayed with zero values in your stats suggests that G.INP is actually active on your connection.

Could you tell us which firmware & software versions you have in your modem?

I know you say you have used the latest firmware version, but your DS Discovery phase band plan should be the same as mine (also a Huawei DSLAM):-
(DS: (33,859) (1216,1961) (2793,3970) )


These the latest versions:-

software version: V100R001C01B030SP08
xdsl firmware version: A2pv6C038m.d24j
cpu version: BCM6368
cfe version: 1.0.37-102.6


Just for reference, I have attached the important 'snapshot' graphs montage for my connection, as obtained at 18:00 today, along with the combined Bitloading & SNR graph.

Hi, thanks for your reply. How did you get the info regarding the firmware version and software version as i cant seem to find is this:
Stats recorded 02 Apr 2015 22:10:19

DSLAM/MSAN type:           BDCM:0xa485 / v0xa485
Modem/router firmware:     AnnexA version - A2pv6C038m.d24j
DSL mode:                  VDSL2 Profile 17a
Status:                    Showtime
Uptime:                    6 days 8 hours 6 min 57 sec
Resyncs:                   0 (since 02 Apr 2015 21:20:16)
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boost

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Re: New to VDSL, do my stats look ok?
« Reply #7 on: April 02, 2015, 10:21:40 PM »

DSLAM/MSAN type:           BDCM:0xa44f / v0xa44f   <---- We seem to have different versions...
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burakkucat

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Re: New to VDSL, do my stats look ok?
« Reply #8 on: April 02, 2015, 10:22:06 PM »

Thank you for that information.

As you describe that there are three pairs present at the NTE5/A (with only one in use), I suspect that the service feed is CW1308 internal cable which, in turn, is joined to the aerial drop cable either just inside or just outside the property. From your description, I doubt that there will be any performance degrading wiring surprises . . .  :)

If you have any doubts, we are all quite happy to examine any photographs that you might like to share!

At present, it seems as if Bald_Eagle1 has noticed something important. Correct that and there should be an improvement in both synchronisation and throughput speeds.

In terms of the circuit's length to the PCP/DSLAM, you are very similar to both Bald_Eagle1 and NewtronStar.
« Last Edit: April 02, 2015, 10:25:44 PM by burakkucat »
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Bald_Eagle1

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Re: New to VDSL, do my stats look ok?
« Reply #9 on: April 02, 2015, 10:24:08 PM »

I don't use DSLStats as I use my own programs HG612 Modem Stats

I'm not sure if you can get the software version from DSLStats, butyou can get it via telnet.

The command after logging in to BusyBox is:-

equipcmd swversion display


It does look as though you have the latest firmware version, which should also give you the latest software version.

However, I am aware that on rare occasions, the modem may need a factory reset or that you need to hold the reset button down a little longer before installing firmware updates.

I do recall once seeing the correct version reported myself, but not 'everything' was fully updated.

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Bald_Eagle1

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Re: New to VDSL, do my stats look ok?
« Reply #10 on: April 02, 2015, 10:35:34 PM »

DSLAM/MSAN type:           BDCM:0xa44f / v0xa44f   <---- We seem to have different versions...

This is mine (same as boost's):-

# xdslcmd info --vendor
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status:   0
Max:    Upstream rate = 5532 Kbps, Downstream rate = 21324 Kbps
Bearer: 0, Upstream rate = 4999 Kbps, Downstream rate = 22399 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
ChipSet Vendor Id:      BDCM:0xa44f
ChipSet VersionNumber:  0xa44f

ChipSet SerialNumber:
« Last Edit: April 02, 2015, 10:41:11 PM by Bald_Eagle1 »
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lewisp8

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Re: New to VDSL, do my stats look ok?
« Reply #11 on: April 02, 2015, 10:42:00 PM »

Right I've tried to do a factory reset of the modem as suggested and also made sure to hold the reset button longer whilst uploading firmware. I uploaded firmware with a file name that goes like: bcm96368MVWG_fs_kernel_HG612V100R001C01B030SP08_unlocked. It caused a drop in sync  speed but my attainable is still roughly the same.
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Bald_Eagle1

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Re: New to VDSL, do my stats look ok?
« Reply #12 on: April 02, 2015, 10:51:00 PM »

If your bandplans still haven't changed, boost may have found the reason as being the differences in DSLAM versions.

That could just be a red herring though as you, NewtronStar & I are unable to use those higher tones anyway due to our distance from the cabinet.

Other thoughts could be that you have a particularly 'noisy' connection or there may be some aluminium cabling in your D-side line from the cabinet.

Sight of your QLN & Hlog graphs may help to rule things in or out as potential causes.


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lewisp8

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Re: New to VDSL, do my stats look ok?
« Reply #13 on: April 02, 2015, 11:01:53 PM »

If your bandplans still haven't changed, boost may have found the reason as being the differences in DSLAM versions.

That could just be a red herring though as you, NewtronStar & I are unable to use those higher tones anyway due to our distance from the cabinet.

Other thoughts could be that you have a particularly 'noisy' connection or there may be some aluminium cabling in your D-side line from the cabinet.

Sight of your QLN & Hlog graphs may help to rule things in or out as potential causes.

Band plans have not changed since the re flash, here are the QLN and HLOG graphs, may i also say thank you for all the help from everyone who has replied!
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tickmike

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Re: New to VDSL, do my stats look ok?
« Reply #14 on: April 03, 2015, 12:06:46 AM »

How did you get the info regarding the firmware version and software version as i cant seem to .
I use the HG612 web page on your web browser.

http://wiki.kitz.co.uk/index.php/Huawei_HG612_-_Status


http://www.freemaptools.com/measure-distance.htm
« Last Edit: April 03, 2015, 12:09:46 AM by tickmike »
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I have a set of 6 fixed IP's From  Eclipse  isp.BT ADSL2(G992.3) line>HG612 as a Modem, Bridge, WAN Not Bound to LAN1 or 2 + Also have FTTP (G.984) No One isp Fixed IP >Dual WAN pfSense (Hardware Firewall and routing).> Two WAN's, Ethernet LAN, DMZ LAN, Zyxel GS1100-24 Switch.
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