Anybody using Airtel in Lucknow?

[rajil.s]

I replaced the Beetel modem with TP-Link W8968 v4 running in bridge mode. The router has a nice telnet interface. The stats havent improved though.

>adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:  8000
Last initialization procedure status:  0
Max:  Upstream rate = 1336 Kbps, Downstream rate = 24864 Kbps
Bearer: 0, Upstream rate = 871 Kbps, Downstream rate = 19397 Kbps

Link Power State:  L0
Mode:  ADSL2+
TPS-TC:  ATM Mode
Trellis:  U:ON /D:ON
Line Status:  No Defect
Training Status:  Showtime
  Down  Up
SNR (dB):  6.9  22.4
Attn(dB):  17.5  10.9
Pwr(dBm):  0.0  12.6

  ADSL2 framing
  Bearer 0
MSGc:  94  30
B:  38  54
M:  1  1
T:  10  1
R:  8  2
S:  0.0642  1.9826
L:  5859  230
D:  511  16

  Counters
  Bearer 0
SF:  115406  103894
SFErr:  2  0
RS:  115404489  3738430
RSCorr:  2780  0
RSUnCorr:  3  0

  Bearer 0
HEC:  0  0
OCD:  0  0
LCD:  0  0
Total Cells:  84703966  3788848
Data Cells:  209616  223160
Drop Cells:  0
Bit Errors:  0  0

ES:  2  0
SES:  0  0
UAS:  248  248
AS:  1853

  Bearer 0
INP:  2.50  0.50
INPRein:  0.00  0.00
delay:  8  8
PER:  16.04  17.84
OR:  49.86  16.14
AgR:  19371.22  884.26

Bitswap:  21/21  0/0

 

[swa8608]

u do not have any hec errors now with this modem right? but ur snr was 8-9 with the beetel modem and in this its 6.9. does your snr improve during night? i notice the snr increases by atleast 1.5-2 at night.

 

[rajil.s]

HEC error is cumulative, so it is zero when the router is powered on. Likewise, i see SNR creep up in the night.

It does seem that the SNR is poorer with this modem, but more data to make that a conculsion.

After 8 hours of running the HEC errors have sky-rocketed.

>adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:  8000
Last initialization procedure status:  0
Max:  Upstream rate = 1336 Kbps, Downstream rate = 24660 Kbps
Bearer: 0, Upstream rate = 871 Kbps, Downstream rate = 19397 Kbps

Link Power State:  L0
Mode:  ADSL2+
TPS-TC:  ATM Mode
Trellis:  U:ON /D:ON
Line Status:  No Defect
Training Status:  Showtime
  Down  Up
SNR (dB):  6.8  21.9
Attn(dB):  17.5  10.9
Pwr(dBm):  0.0  12.6

  ADSL2 framing
  Bearer 0
MSGc:  94  30
B:  38  54
M:  1  1
T:  10  1
R:  8  2
S:  0.0642  1.9826
L:  5859  230
D:  511  16

  Counters
  Bearer 0
SF:  1888989  760102
SFErr:  239  1
RS:  1888987428  1060836
RSCorr:  226456  35
RSUnCorr:  80290  0

  Bearer 0
HEC:  5736  0
OCD:  17  0
LCD:  17  0
Total Cells:  1386389483  62176149
Data Cells:  10953683  1524082
Drop Cells:  0
Bit Errors:  0  0

ES:  77  1
SES:  3  0
UAS:  248  248
AS:  30337

  Bearer 0
INP:  2.50  0.50
INPRein:  0.00  0.00
delay:  8  8
PER:  16.04  17.84
OR:  49.86  16.14
AgR:  19371.22  884.26

Bitswap:  411/412  27/27

Total time = 8 hours 29 min 45 sec
FEC:  226456  35
CRC:  239  1
ES:  77  1
SES:  3  0
UAS:  248  248
LOS:  0  0
LOF:  0  0
LOM:  0  0

 

[Siddharth Anand]

As I had said, it's your line problem , not a modem issue. And so this is called the telnet page? lol I just thought these are the stats (in laymans terms )
P.S This router/modem is very stable.

 

[rajil.s]

I captured the downstream SNR from the both TP-Link W8968v4 and Airtels provided Beetel modem. Both modems were in their stock configuration. Each modem was set to bridge mode and connected to a router.

The results show that Beetel modem is superior to Tplink as far as SNR is considered. The average SNR for Tplink 7.3dB while Beetel was 9.9dB. This was surprising as the general recommendation is to go with a Broadcom chip. TPlink modem is based on Broadcom however I dont know about Beetel modem.

Tplink modem

Beetel modem