How is the FTTH line quality of my BSNL Bharat Fiber Connection?

[naman1208]

So i have recently got bsnl ftth service and its been good, lot better then traditional adsl2 system, So speed is great too but i want someone to look at these parameters of fibre cable and please help me to find out about the quality of fibre cable, So here are these parameters ......and i am unable to understand them.

EPON State	Registered and certified
OAM_Link	Established

Optical Module Input Power(dBm)	-17.4
Optical Module Output Power(dBm)	2.0
Optical Module Supply Voltage(uV)	3330000
Optical Transmitter Bias Current(uA)	11582
Operating Temperature of the Optical Module(°C)	61

 

[neonbulb]

Can anyone please say if the signal level of my line is fair or not? Please check the attachment.

For the past two weeks the connection was dropping continuously from some minutes to a couple of hours and there was no internet. The LOS red light was also blinking continuously at the same time. After raising the complaint the cable technician came and said that the signal level is fluctuating too much from -27 to -37, and said they'll rectify the problem very soon.

From today evening the RX level is always around -25, and there's no connection drop nor the LOS red light blinking. Does it mean that they resolved the issue? Or the issue with the signal is still there? What's the ideal level needed for these numbers?

 

[Adithya]

-25 is good. It's only somewhere from -28 to -30 where it starts to have LOS issues.

 

[Abel]

@naman1208 ur parameters are excellent.

 

[Reklez]

Is this good ?

Laser Device Info

Tx Power	1.700619 dBm
Rx Power	-24.436975 dBm
Temperature	39.695313 C
Voltage	3.347200 V
Bias Current	12.250000 mA

So weirdly enough, my upload speeds are always consistently above 100mbps but my download speeds are all over the place . I get above 100mbps download at midnight but during afternoon and evening I get anywhere between 40 to 90 . Would it be because the fiber line gets saturated or something and would it be easy to fix if I talked to the LCO?
Currently on Fiber value plan - 100mbps 3300GB FUP

 

[shashankb]

There might be congestion on the line(only your OLT port) as you have pointed out or their backend is choking

 

[Adithya]

That'll remain a mystery for ever. Speedtests always have max uploads.

That said, real world upload speeds are only good to peered sites (google etc) while downloads max out everywhere. Maybe because I use a download manager.

 

[humblefool]

Has anyone notices, BSNL Uptime has increased since lockdown. In my Apt BSNL > JIO. Suprising

 

[ishanjain28]

We only have 1 BSNL uplink so if something happens to that line, Internet connectivity goes out in the entire town.
Some idiot stole a section of the fiber on 24th Evening and it was out until 26th Afternoon, Similar idiotic incidents happened twice before this.
Hopefully there will be less disruptions once there is another uplink in my town after late January.

 

[bg3]

Network Link Connection Information
PON Link Connection Status:	Online
FEC Enable:	Disable
Link Performance Statistics
Packets Number Of PON Port Sent:	245943
Packets Number Of PON Port Received:	539871
Light Module Information
Transmiting Light Power:	2.5dBm
Receiving Light Power:	-31.5dBm
Working Voltage:	3285.8mV
Working Current:	16.654mA
Working Temperature:	58℃

 

[Nishant]

Receiving Light Power:

-31.5dBm

This is not good. It should be -26 or less (i.e. -25, -24 etc.).