Reliance Jio Fiber upload speeds are 10% of your plan speed

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Lobogris said:
GPON has upload limitations compared to download. A normal gpon has approx 2.5Gbps download ability and 1.2Gbps upload. So right off the bat, you can only provide 50% upload. You can get away with providing symmetrical upload as most users download more but Jio is planning for a large nationwide network. Then we come to time division multiple access (TDMA burst mode) on the ONT at the exchange level. One fiber has to handle all traffic to multiple ONU CPEs so each CPE (home terminal/ Jio router) is given a time slot of a few milliseconds to transmit . All data downstream is received by all ONUs but they ignore everything not coded for them. So you will see how providing higher upload speed would cause more strain on the system. I don’t know if Jio is using 10-gpon but even if they are, it provides a little under 10Gb down and 2.4 up making it even more necessary to limit upload speeds as you have just 25% upload capacity.
In addition Jio is also providing voice and TV over the same link. That is why I think they have reduced the upload after commercial launch as they started the STB streaming. So certain amount of capacity is earmarked for that as well.
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Going by your theory, can you please tell me the technology used by bharti airtel for ftth?
 
Lobogris said:
GPON has upload limitations compared to download. A normal gpon has approx 2.5Gbps download ability and 1.2Gbps upload. So right off the bat, you can only provide 50% upload. You can get away with providing symmetrical upload as most users download more but Jio is planning for a large nationwide network. Then we come to time division multiple access (TDMA burst mode) on the ONT at the exchange level. One fiber has to handle all traffic to multiple ONU CPEs so each CPE (home terminal/ Jio router) is given a time slot of a few milliseconds to transmit . All data downstream is received by all ONUs but they ignore everything not coded for them. So you will see how providing higher upload speed would cause more strain on the system. I don’t know if Jio is using 10-gpon but even if they are, it provides a little under 10Gb down and 2.4 up making it even more necessary to limit upload speeds as you have just 25% upload capacity.
In addition Jio is also providing voice and TV over the same link. That is why I think they have reduced the upload after commercial launch as they started the STB streaming. So certain amount of capacity is earmarked for that as well.
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To be honest, even 1/4 will be much better than current 1/10
 
ankushmalik1120 said:
Test results:

Source


These tests were ran when my family was using internet for light browsing etc. Otherwise it can even hit 98-99 on 5ghz WiFi.

What is your current ISP though? I ditched mine due to their rude support behaviour. A week ago I called them to complain that their speed and jitter is shit to any server expect Google servers and other big companies servers even in India. I didn't even get good speed to Google compute engine in Bangalore.

And what did they do? Tried to fool me by making random stuff like saying tell us if Google play store or YouTube are slow. / Insisting on Local version of Singapore server to test speed when I complained I was getting 0-1 Mbps in speed test to USA or 10 to Singapore server with upload speed fine or getting better speed using clouflare VPN.

But the worst is when I told them I used to get better speed in old ISP and they said so change to your old ISP we don't have problem. I did exactly that and got Jio installed on same day. They didn't acknowledge that their backend was underload and just tried to act rudely.

My ISP was skigrid
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Thanks for the results bro. Currently on BSNL FTTH. Domestic pings are similar but international are much worse than your Jio pings. I'll get Jio in a few days. I have 100mbps plan on BSNL but download speed rarely crosses 50. Upload is almost always 80+. That's not the main issue, downtime is the biggest problem. Sometimes it's BSNL, other times it's the LCO. Speed dips during peak hours (10am to 6pm) are massive. <10mbps isn't a surprise anymore. Lockdown has affected it badly, it wasn't like this before, although not the best quality of service even then.
 
I'm surprised bsnl too surfers from low speed during peak hours. I can understand lco ISPs suffering as they mostly have limited budget and relies on peering mostly. But bsnl wasn't expected.
 
@ankushmalik1120 Yeah I was surprised too, given I had really good experience with their ADSL broadband from the same exchange, which had absolutely zero downtimes.

But I don't know what is the reason. Maybe because the last mile connectivity is outsourced to third party local cable guys, or maybe because the company is suffering financially and recently they gave retirement to big portion of their staff. But even their staff wasn't too good. I did a 1 month internship in Rohtak exchange's broadband department years ago, and they didn't know shit 😂, except one person who ran the whole thing smoothly on his own.
 
I'm don't know much about this but fiber allows for different wavelengths for upload and download. So upload data shouldn't interfere with download data.

And their network can't handle upload speed doesn't make much sense when almost all big ISPs are providing symmetrical speeds. Jio have more to loose by not providing decent upload speed then by providing it.
 
Yes, different wavelengths are used for upload and download. Read my earlier post where I explained the TDMA burst mode used for upload. All data from the ONT is sent to every ONU or CPE and they disregard data not meant for them. However, for upload, the ONT assigns each ONU a small timeslot to transmit and the upload wavelength is used in time division mode meaning each second is divided into fractions for each ONU. So they cannot all transmit at the same time leading to lesser bandwidth available for upload.
 
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