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Author Topic: Can anyone identify the equpment in use, and/or what its capable of?  (Read 1387 times)

bndwdthseekr

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I snapped these pics of my CO this evening, just wondering if anyone here could ID it.
Code: [Select]
XTU-R (DS) XTU-C (US)
Chip Vendor ID: 'BDCM' 'IFTN'
Chip Vendor Specific:   0x0000 0x71B0
Chip Vendor Country:    0xB500 0xB500
Modem Vendor ID: 'CSCO' '    '
Modem Vendor Specific:  0x4602 0x0000
Modem Vendor Country:   0xB500 0x0000

Since everyone here seems much more knowledgeable about this kind of thing than the guys over at dslreports, I figured I would ask here as well. Any idea if the individual ports can be switched to ADSL2+ or VDSL2, or does it have to be the whole multi-port line card? I'm just trying to hold my ISP's feet to the fire until they give me better speeds, so the more info I have, the better!

FYI the broadcom is on my side, and the 'IFTN' is on the ISP side.



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Weaver

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #1 on: April 18, 2019, 08:05:05 AM »

A very warm welcome to the forum!

Take a look at Kitzí diagram of the local network. If someone is getting ADSL2+ or the original G.DMT (ĎADSL1í) then the modem at the remote end that they talk to is in the exchange not in a green cab. The speed is up to 20 Mbps downstream.

If you are lucky enough to have the much faster VDSL2 that is FTTC meaning that the modems that you talk to are in a green cab, much nearer to your property, which makes it up to 80Mbps depending on distance and on crosstalk which is the interference caused by leakage of other usersí signals into your copper. In FTTC it is a copper line from the green cab to your house, not fibre as the lying adverts might imply.

Now if you change from ADSL to VDSL2/FTTC, then the change is made in the exchange, because that is where the ADSL modems are. The copper link from the exchange to a roadside box called the PCP is replaced by a fibre link to a different green box called errm, an FTTC cab, donít know. The FTTC cab is linked by a cable to the PCP by copper and then there is more copper in the PCP which goes to your house. So in the PCP wiring is changed to link the line from your house into the cross connection link to the FTTC cabís modems. So two changes.

Some unlucky people such as me myself have no PCP cabinet but just direct copper from the house to the exchange - a so-called EO line (Ďexchange onlyí), and have no chance of getting FTTC, not unless Openreach retires the network. So for us it is not like the diagram.

Hope I got that right and hope that helps.

I donít know what that mysterious grey box is, but someone here will know.
« Last Edit: April 18, 2019, 08:09:46 AM by Weaver »
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Ronski

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #2 on: April 18, 2019, 10:11:41 AM »

Weaver, he's not in the UK,  going by a previous post he's in America, and the ISP mentioned was Frontier, which is an American communications provider.
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Westie

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #3 on: April 18, 2019, 12:17:39 PM »

And the photos appear to be of two different cabinets, not two views of the same one...
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bndwdthseekr

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #4 on: April 18, 2019, 01:45:29 PM »

they are two different cabinets... but they are at the same location. the bigger one is the one I assume to contain the DSLAM and related equipment, and the smaller one I think is the distubution panel for the copper lines, but who knows. Here is my post over at DSLreports http://www.dslreports.com/forum/r32350946-we-re-sorry-you-have-the-fastest-speed-available (not trying to advertise here, just for context)
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johnson

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #5 on: April 18, 2019, 02:06:37 PM »

They are both pretty weathered looking, so if a service different to the one you have currently is available from said boxes it has been for some time.

At least here its very rare for new equipment to be housed in the same cabinet. Additional ports sure, but not a change of DSL version.

What exactly are you hoping to be the case?
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Weaver

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #6 on: April 18, 2019, 02:11:54 PM »

Bndwdthseekr - my apologies I just made an assumption - that you were in the UK - and I didnít ask. So Iím told youíre in the USA. The diagram I linked to is possibly UK-specific, I donít know so beware. These friends of mine here who are mere knowledgeable and less full of medications will be able to help.
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bndwdthseekr

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #7 on: April 18, 2019, 04:12:51 PM »

mostly just hoping ADSL2+ is avalible, and they just have my line card in ADSL mode. Most of the customers in my area are more than 2 miles from the DSLAM so it wouldn't surprise me if they were using ADSL mode for some odd reason.

I heard mention of Adtran, and Alcatel when talking to the ISP reps, maybe that helps in identifying if my DSLAM is ADSL2/2+ capable?

What's the maximum speeds for ADSL2+? I know plain ADSL is capable of 15mbits, but usually sold as a maximum of 8mbit... I don't know for sure, but after screwing around with some settings on my modem card I have a maximum rate of 12200kbps on the download. I assume I can get around 12000kbit if they would provision it for me? You can check out the DSLstats graphs in my post on the other forum if you want to see a 2 day graph of everything important. I would post them here.... but I'm lazy  ;)

Is the attainable rate just from my modem card, or should the ISP's equipment support that rate too? (provided I could get them to provision it...)
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burakkucat

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #8 on: April 18, 2019, 06:39:57 PM »

The only thing that is definite, to me, is that the line-card chipset is Infineon.

XTU-C (US)
'IFTN'


If it hasn't already been mentioned by Weaver, the "Line Stats - Explanation" page may have some information relevant to your service.
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bndwdthseekr

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #9 on: April 18, 2019, 06:43:11 PM »

I'm so peed right now! The tech was at the exchange upgrading my DSLAM this afternoon... and I went down and talked to him. He was super cool and answered a few of my questions, and it turns out the exchange is fiber fed. I guess the bottleneck lies between the fiber and the dslam somwehere, and I didn't want to bother him too much as he seemed busy. When I got home, the internet was still down, but my modem stats were the following:

Code: [Select]
BFR#sh control vdsl 0/0/0
Controller VDSL 0/0/0 is UP

Daemon Status:           Up

                        XTU-R (DS)              XTU-C (US)
Chip Vendor ID:         'BDCM'                   'IFTN'
Chip Vendor Specific:   0x0000                   0x71B0
Chip Vendor Country:    0xB500                   0xB500
Modem Vendor ID:        'CSCO'                   '    '
Modem Vendor Specific:  0x4602                   0x0000
Modem Vendor Country:   0xB500                   0x0000
Serial Number Near:    FOC20120ZC6 2911/K9 15.7(3)M3
Serial Number Far:
Modem Version Near:    15.7(3)M3
Modem Version Far:     0x71b0

Modem Status:            TC Sync (Showtime!)

DSL Config Mode:         AUTO
Trained Mode:   G.992.5 (ADSL2+) Annex A
TC Mode:                 ATM
Selftest Result:         0x00
DELT configuration:      enabled
DELT state:              successful

Full inits:             5
Failed full inits:      1
Short inits:            1
Failed short inits:     0

Firmware        Source          File Name
--------        ------          ----------
VDSL            user config     flash0:23mar2017_39m_B_38u_24o_rc1_sdk_4.14l.04a-j.bin

Modem FW  Version:      4.14L.04A
Modem PHY Version:      A2pv6C039m.d24o_rc1
Trellis:                 ON                       ON
SRA:                     disabled                disabled
 SRA count:              0                       0
Bit swap:                enabled                 enabled
 Bit swap count:         0                       165
Line Attenuation:        27.5 dB                 14.3 dB
Signal Attenuation:      26.9 dB                 14.4 dB
Noise Margin:            22.3 dB                 23.8 dB
Attainable Rate:        13672 kbits/s            1412 kbits/s
Actual Power:             0.0 dBm                10.9 dBm
Total FECC:             0                        0
Total ES:               13                       0
Total SES:              11                       0
Total LOSS:             1                        0
Total UAS:              1253                     1242
Total LPRS:             0                        0
Total LOFS:             9                        0
Total LOLS:             0                        0


                  DS Channel1     DS Channel0   US Channel1       US Channel0
Speed (kbps):             0             8159             0               891
SRA Previous Speed:       0                0             0                 0
Previous Speed:           0             6944             0              1024
Total Cells:              0          4280374             0            457941
User Cells:               0                0             0               256
Reed-Solomon EC:          0                0             0                 0
CRC Errors:               0              447             0                 0
Header Errors:            0                0             0                 0
Interleave (ms):       0.00             0.24          0.00              0.24
Actual INP:            0.00             0.00          0.00              0.00

Training Log :  Stopped
Training Log Filename : usbflash0:ciscoext/DSLtrainlog

BFR#

I have nothing but good things to say about the local techs, but as for the people making the decisions about what to upgrade.... those are the bastards!

soon after my internet came back, and when checking the stats again, I'm back on ADSL and everything is as it was. THAT'S WHAT FKIN pees ME OFF SO BAD! They could spend a little to upgrade whatever is feeding the dslam over the copper patch cables, and provide much better service. will they do this? FK NO! and its not the tech's fault that's for damn sure.

I figured this all along, but to have my suspicions confirmed.... I'm gonna go fight a punching bag until I cool off.
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burakkucat

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #10 on: April 18, 2019, 07:00:57 PM »

Looking at the latest statistics, it appears that the uplink ("northward") from the DSLAM is the limiting factor and Frontier are limiting the downlink ("southward") circuits' (to end users) as ADSL (ITU-T G.992.1) . . . so as to share out that limited bandwidth.

If unconstrained by the limited uplink, your circuit could easily be provisioned as ADSL2 (ITU-T G.992.3) or ADSL2+ (ITU-T G.992.5).  :(
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Weaver

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #11 on: April 19, 2019, 02:09:33 AM »

Folks, what is going on with the Reed-Solomon there? Am I seeing things, no FEC? am I just reading this unfamiliar listing wrongly.

Is this a Cisco modem?

So we are G.992.5 (ADSL2+) right now and that is good for 20Mbps on a really short line.

If you have an SRA setting in your modem turn on, as that is a very good thing to have and then we just hope it is actually available.

Broadcom chipset at your end talking to an Infineon one at their end, and no PhyR (Broadcom) or G.INP (standard) layer2 ReTx error correction protocol unfortunately as the two donít speak a common language.

You are getting a few error seconds on the downstream, how long a session was that taken over?
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bndwdthseekr

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #12 on: April 19, 2019, 03:36:09 AM »

okay, so that's while the tech was working on the unit.... here's my current stats:

Code: [Select]
BFR#xdslctl info --stats
The output of the command is :
/bin/xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 1336 Kbps, Downstream rate = 12172 Kbps
Channel:        FAST, Upstream rate = 1024 Kbps, Downstream rate = 6944 Kbps

Link Power State:       L0
Mode:                   G.DMT Annex A
TPS-TC:                 ATM Mode(0x0)
Trellis:                ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        19.8            16.0
Attn(dB):        26.0            15.0
Pwr(dBm):        19.8            10.9
                        G.dmt framing
K:              218(0)          33
R:              0               0
S:              1.0000          1.0000
D:              1               1

                        Counters
                        Bearer 0
SF:             2042933         2042886
SFErr:          0               2
RS:             0               0
RSCorr:         0               0
RSUnCorr:       0               0

                        Bearer 0
HEC:            0               1
OCD:            0               0
LCD:            0               0
Total Cells:    568779550               0
Data Cells:     49411669                0
Drop Cells:     0
Bit Errors:     0               0

ES:             0               0
SES:            0               0
UAS:            72              72
AS:             34730

                        Bearer 0
INP:            0.00            0.00
INPRein:        0.00            0.00
delay:          0               0
PER:            0.00            0.00
OR:             32.00           32.00
AgR:            6948.85 1051.89

Bitswap:        0/0             375/375

Total time = 9 hours 51 min 40 sec
FEC:            0               0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            72              72
LOS:            0               0
LOF:            0               0
LOM:            0               0
Latest 15 minutes time = 6 min 40 sec
FEC:            0               0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Previous 15 minutes time = 15 min 0 sec
FEC:            0               0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Latest 1 day time = 9 hours 51 min 40 sec
FEC:            0               0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            72              72
LOS:            0               0
LOF:            0               0
LOM:            0               0
Previous 1 day time = 0 sec
FEC:            0               0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Since Link time = 9 hours 38 min 49 sec
FEC:            0               0
CRC:            0               2
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0

Code: [Select]
BFR#sh control vdsl 0/0/0
Controller VDSL 0/0/0 is UP

Daemon Status:           Up

                        XTU-R (DS)              XTU-C (US)
Chip Vendor ID:         'BDCM'                   'IFTN'
Chip Vendor Specific:   0x0000                   0x71B0
Chip Vendor Country:    0xB500                   0xB500
Modem Vendor ID:        'CSCO'                   '    '
Modem Vendor Specific:  0x4602                   0x0000
Modem Vendor Country:   0xB500                   0x0000
Serial Number Near:   xxxxxxxxxxx 2911/K9 15.7(3)M3
Serial Number Far:
Modem Version Near:    15.7(3)M3
Modem Version Far:     0x71b0

Modem Status:            TC Sync (Showtime!)

DSL Config Mode:         AUTO
Trained Mode:   G.992.1 (ADSL) Annex A
TC Mode:                 ATM
Selftest Result:         0x00
DELT configuration:      enabled
DELT state:              successful

Full inits:             3
Failed full inits:      0
Short inits:            0
Failed short inits:     0

Firmware        Source          File Name
--------        ------          ----------
VDSL            user config     flash0:23mar2017_39m_B_38u_24o_rc1_sdk_4.14l.04a-j.bin

Modem FW  Version:      4.14L.04A
Modem PHY Version:      A2pv6C039m.d24o_rc1
Trellis:                 ON                       ON
SRA:                     disabled                disabled
 SRA count:              0                       0
Bit swap:                enabled                 enabled
 Bit swap count:         0                       378
Line Attenuation:        26.0 dB                 15.0 dB
Signal Attenuation:      26.0 dB                  0.0 dB
Noise Margin:            19.8 dB                 16.0 dB
Attainable Rate:        12168 kbits/s            1336 kbits/s
Actual Power:            19.8 dBm                10.9 dBm
Total FECC:             0                        0
Total ES:               0                        0
Total SES:              0                        0
Total LOSS:             0                        0
Total UAS:              72                       72
Total LPRS:             0                        0
Total LOFS:             0                        0
Total LOLS:             0                        0


                  DS Channel1     DS Channel0   US Channel1       US Channel0
Speed (kbps):             0             6944             0              1024
SRA Previous Speed:       0                0             0                 0
Previous Speed:           0             6944             0              1024
Total Cells:              0        576105764             0                 0
User Cells:               0         52139749             0                 0
Reed-Solomon EC:          0                0             0                 0
CRC Errors:               0                0             0                 0
Header Errors:            0                0             0                 1
Interleave (ms):       0.00             0.25          0.00              0.25
Actual INP:            0.00             0.00          0.00              0.00

Training Log :  Stopped
Training Log Filename : usbflash0:ciscoext/DSLtrainlog

« Last Edit: April 19, 2019, 04:18:58 AM by bndwdthseekr »
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Weaver

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  • Retd sw dev; A&A; 4 ◊ 7km ADSL2; IPv6; Firebrick
Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #13 on: April 19, 2019, 05:04:48 AM »

So I read this all wrong before, now Iím seeing the standard Broadcom stats and we are ADSL G.DMT / G.992.1 (ĎADSL1í) the most basic ancient crudest ADSL protocol.

R = 0. Donít know why, whereís the FEC gone? The answer would seem to be that it isnít needed as the SNRM is so enormously high - at 19.8dB downstream / 16dB upstream - that there never are any errors.

Also no interleaving.

In the UK we all run much faster, with the fastest speeds the line can take and a low SNRM of 6dB downstream / 6dB upstream (for most domestic users anyway). Some lucky souls such as me can risk 3dB down / 6dB upstream and some business users are 9dB / 9dB (I used to be on that).

So Iím guessing that you are capped at a sync rate of 6944kbps down /1024kbps up.

So a good line which would run dramatically faster at the right target SNRM and with FEC, interleave and hooefully G.INP and/or SRA from Santa.

So if you are ISP shopping then you need this requirements list : (1) G.992.5 ADSL2+ with (2) variable rate and 6dB / 6dB target SNRM, (3) interleaving, (4) FEC on and trellis on (you already have trellis modulation), and very nice-to-haves would be: (5) PTM instead of vile ATM, (6) SRA, (7) G.INP - so an ISP with the last three gets extra plus points. I have 1,2,3,4 and 7 (effectively). No one here seems to have 5 and few have 6.

I have Broadcom-based modems so like yours. Mine are four ZyXEL VMG 1312-B10A units run in modem-only mode and they run custom firmware adapted and enhanced by one of our number here (Kitz user ĎJohnsoní). Mine speak G.992.3 (ADSL2) at about 3 Mbps downstream sync / 300-500 kbps upstream sync
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bndwdthseekr

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Re: Can anyone identify the equpment in use, and/or what its capable of?
« Reply #14 on: April 19, 2019, 06:52:37 AM »

I would 'shop for' another ISP if I could... my two options now are Hughesnet, and Frontier. The hughesnet is too high latency to do anything with.... and there's a 30gb monthly cap. I have both right now.

Should I enable SRA? I can, and have used it before, but I figured why bother if my sync is set so low it will never have to 'adapt' the rate anyway.
Code: [Select]
BFR#xdslctl profile --show
The output of the command is :

Modulations:
        G.Dmt   Enabled
        G.lite  Enabled
        T1.413  Enabled
        ADSL2   Enabled
        AnnexL  Enabled
        ADSL2+  Enabled
        AnnexM  Disabled
        VDSL2   Enabled
Phone line pair:
        Inner pair
Capability:
        bitswap         On
        sra             Off
        trellis         On
        sesdrop         Off
        CoMinMgn        Off
        24k             On
        phyReXmt(Us/Ds) Off/On
        TpsTc           AvPvAa
        monitorTone:    On
        dynamicD:       On
        dynamicF:       Off
        SOS:            On
        Training Margin(Q4 in dB):      226

I would be happy to provide a link to your firmware modder if he thinks he can unlock any hidden gems in the firmware  ;)
« Last Edit: April 19, 2019, 07:32:25 AM by bndwdthseekr »
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