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Author Topic: Zyxel XMG3927-B50A  (Read 13937 times)

re0

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Re: Zyxel XMG3927-B50A
« Reply #15 on: July 18, 2019, 11:46:31 PM »

If that error rate remains consistent like that, it should be better than with the Billion. Only time will tell, but here's hoping :fingers: (though, not like it was bad before anyway).
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Gigaclear FTTP for 2021? Maybe it's too late.

tubaman

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Re: Zyxel XMG3927-B50A
« Reply #16 on: July 19, 2019, 07:45:22 AM »

..... I get rid of China ugly plug and replaced with Genuine UK Plug (Netgear powerswitch)

I suspect you'll find the Netgear plug was made in China too. It it were me I'd be using the supplied adaptor on a new and expensive bit of kit like this.
 :)
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BT FTTC 80/20 Huawei Cab - Zyxel VMG8924-B10A

adslmax

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Re: Zyxel XMG3927-B50A
« Reply #17 on: July 26, 2019, 11:55:30 AM »

Just been having a short break away back now. My mind are lots ease better.

Here is my latest stats for over 7 days from this new Zyxel so far very good. I am now happy and stay with FTTC for a long while because it one of the best connection say Kitz last week.

Code: [Select]
xdslctl info --stats
xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 26829 Kbps, Downstream rate = 92578 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 79999 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State:       L0
Mode:                   VDSL2 Annex B
VDSL2 Profile:          Profile 17a
TPS-TC:                 PTM Mode(0x0)
Trellis:                U:ON /D:ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        8.5             14.9
Attn(dB):        12.0            0.0
Pwr(dBm):        12.4            2.3

                        VDSL2 framing
                        Bearer 0
MSGc:           -6              26
B:              130             237
M:              1               1
T:              0               42
R:              8               16
S:              0.0518          0.3781
L:              21468           5374
D:              16              1
I:              139             127
N:              139             254
Q:              16              0
V:              14              0
RxQueue:                60              0
TxQueue:                20              0
G.INP Framing:          18              0
G.INP lookback:         20              0
RRC bits:               0               24
                        Bearer 1
MSGc:           186             -6
B:              0               0
M:              2               0
T:              2               0
R:              16              0
S:              5.3333          0.0000
L:              48              0
D:              3               0
I:              32              0
N:              32              0
Q:              0               0
V:              0               0
RxQueue:                0               0
TxQueue:                0               0
G.INP Framing:          0               0
G.INP lookback:         0               0
RRC bits:               0               0

                        Counters
                        Bearer 0
OHF:            0               168124267
OHFErr:         0               719
RS:             4082464960              2763131136
RSCorr:         13048           20197
RSUnCorr:       0               0
                        Bearer 1
OHF:            41541353                0
OHFErr:         0               0
RS:             498495502               0
RSCorr:         47              0
RSUnCorr:       0               0

                        Retransmit Counters
rtx_tx:         102             0
rtx_c:          102             0
rtx_uc:         0               0

                        G.INP Counters
LEFTRS:         0               0
minEFTR:        79988           0
errFreeBits:    814153500               0

                        Bearer 0
HEC:            0               0
OCD:            0               0
LCD:            0               0
Total Cells:    3870113021              0
Data Cells:     863703474               0
Drop Cells:     0
Bit Errors:     0               0

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

ES:             0               451
SES:            0               0
UAS:            40              40
AS:             667244

                        Bearer 0
INP:            48.00           0.00
INPRein:        0.00            0.00
delay:          0               0
PER:            0.00            3.98
OR:             0.01            64.22
AgR:            80614.82        20063.54

                        Bearer 1
INP:            4.00            0.00
INPRein:        4.00            0.00
delay:          3               0
PER:            16.06           0.01
OR:             95.62           0.01
AgR:            95.62   0.01

Bitswap:        28882/29224             48855/48855

Total time = 7 days 17 hours 21 min 24 sec
FEC:            13048           20197
CRC:            0               719
ES:             0               451
SES:            0               0
UAS:            40              40
LOS:            0               0
LOF:            0               0
LOM:            0               0
Retr:           0
HostInitRetr:   0
FastRetr:       0
FailedRetr:     0
FailedFastRetr: 0
Latest 15 minutes time = 6 min 24 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
Retr:           0
HostInitRetr:   0
FastRetr:       0
FailedRetr:     0
FailedFastRetr: 0
Previous 15 minutes time = 15 min 0 sec
FEC:            14              2
CRC:            0               2
ES:             0               2
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Retr:           N/A
HostInitRetr:   N/A
FastRetr:       N/A
FailedRetr:     N/A
FailedFastRetr: N/A
Latest 1 day time = 17 hours 21 min 24 sec
FEC:            454             259
CRC:            0               64
ES:             0               53
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Retr:           0
HostInitRetr:   0
FastRetr:       0
FailedRetr:     0
FailedFastRetr: 0
Previous 1 day time = 24 hours 0 sec
FEC:            633             2383
CRC:            0               230
ES:             0               84
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Retr:           0
HostInitRetr:   0
FastRetr:       0
FailedRetr:     0
FailedFastRetr: 0
Since Link time = 7 days 17 hours 20 min 43 sec
FEC:            13048           20197
CRC:            0               719
ES:             0               451
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Retr:           0
HostInitRetr:   0
FastRetr:       0
FailedRetr:     0
FailedFastRetr: 0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0
ZySH>
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underzone

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Re: Zyxel XMG3927-B50A
« Reply #18 on: July 26, 2019, 05:35:52 PM »

This hardware seems absolutely awesome:

Total time = 7 days 17 hours 21 min 24 sec
FEC:            13048           20197
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RealAleMadrid

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Re: Zyxel XMG3927-B50A
« Reply #19 on: July 26, 2019, 07:17:13 PM »

I don't think it's the hardware, even a rubbish modem would work perfectly well on the Op's very short line. :)
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underzone

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Re: Zyxel XMG3927-B50A
« Reply #20 on: July 26, 2019, 11:13:50 PM »

Maybe. Attn(dB):  12.0 seems average to me.
My cct is 17.0 and 420m...
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j0hn

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Re: Zyxel XMG3927-B50A
« Reply #21 on: July 27, 2019, 01:39:07 AM »

This hardware seems absolutely awesome:

Total time = 7 days 17 hours 21 min 24 sec
FEC:            13048           20197

His Billion had 77,000 FEC in 21 days uptime in the screenshot above.
Roughly half the amount of FEC's.

Not that simple to compare though as he may have had a very noisy day in that 21 days or different levels of FEC applied to each modem.
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tubaman

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Re: Zyxel XMG3927-B50A
« Reply #22 on: July 27, 2019, 08:57:38 AM »

So is my line running at about 500,000 FECs per hour not quite to the same standard?  :lol:
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adslmax

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Re: Zyxel XMG3927-B50A
« Reply #23 on: July 27, 2019, 11:01:46 AM »

His Billion had 77,000 FEC in 21 days uptime in the screenshot above.
Roughly half the amount of FEC's.

Not that simple to compare though as he may have had a very noisy day in that 21 days or different levels of FEC applied to each modem.

Will post screenshot once it has reach 21 days to compared Billion v Zyxel.
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adslmax

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Re: Zyxel XMG3927-B50A
« Reply #24 on: August 08, 2019, 08:56:04 PM »

Here is completed 21 days Billion v Zyxel

Code: [Select]
Billion 21 days: (downstream) (upstream)
SES: 0 0
ES: 0 1838
Bitswap: 24215 30081
CRC: 0 3001
HEC: 0 0
FEC: 77869 80531

Zyxel 21 days: (downstream) (upstream)
SES: 0 0
ES: 0 1443
Bitswap: 29650 50152
CRC: 0 2596
HEC: 0 0
FEC: 49118      49774

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underzone

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Re: Zyxel XMG3927-B50A
« Reply #25 on: August 08, 2019, 10:01:39 PM »

I think I am going to order one of those too  ;D
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adslmax

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Re: Zyxel XMG3927-B50A
« Reply #26 on: August 09, 2019, 10:03:30 AM »

I think I am going to order one of those too  ;D

It's a very good Zyxel router (great wireless too) much better than Billion. The broadcom chipset are excellent too for FTTC (those who are on the Huawei cabinet) it also support G.fast too (those who live with a stone throw by the PCP cabinet)
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re0

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Re: Zyxel XMG3927-B50A
« Reply #27 on: August 09, 2019, 05:53:17 PM »

I can vouch for this device. At least on G.fast, it has been incredibly stable; recently had a month of uninterrupted connection, until the power went out.

Sadly, I don't have a baseline to compare devices since so few G.fast devices floating around that:
  • Can be easily obtained;
  • Have accessible in-depth stats.
Certainly think it's worth it's cost if you have G.fast, or intend to upgrade to G.fast - or apparently even if you have VDSL.
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johnson

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Re: Zyxel XMG3927-B50A
« Reply #28 on: August 09, 2019, 06:28:05 PM »

Certainly think it's worth it's cost if you have G.fast, or intend to upgrade to G.fast - or apparently even if you have VDSL.

I can agree with the having G.fast or intending to upgrade to it, but that expensive a unit just for VDSL?

Had a look see at the firmware notes and its a similar broadcom chipset to the VDSL2 Zyxels, same broadcom DSL kernel driver version as the VMG3925 - d26u. Uses a different phy blob, A2pvfbH043q vs A2pv6F039x6 in the 3925, but thats to be expected considering it can do G.fast I guess. Still on the same ancient 3.4.11 kernel.

Would be nice to see some pics of its insides, but a little googling hasnt revealed any to me.

Would also be nice to see FTTC comparisons with a VMG1312 or 8x24 rather than a billion, I have a suspicion they will be very similar.
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j0hn

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Re: Zyxel XMG3927-B50A
« Reply #29 on: August 09, 2019, 07:16:39 PM »

I can agree with the having G.fast or intending to upgrade to it, but that expensive a unit just for VDSL?

Agreed.
Unless you're intending to get G.Fast I think it's overkill and expensive.
I wouldn't expect a higher sync from it on VDSL2 either.

My Zyxel VMG1312-B10A with its BCM63168 syncs higher than 2 different  units with BCM63138 chipsets that I've tried.
A Technicolor DGA4130 with the non G.Fast BCM63138 chipset and the Asus DSL-AC88U with G.Fast support.
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Talktalk FTTP 550/75 - Speedtest - BQM
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