Why GPOn?

aakshey

Member
Messages
171
@Dark_Nate Why do companies use GPON for FTTH?

Why not just provide CAT6 to your home so you can just use your router without a modem? ACT does this for their 300 Mbps plan. But why not for Gig? CAT6 can reliably transfer 10Gig over like 50m and 1Gig over like 300m or so. Isn’t that good enough?
 

Dark_Nate

Member
Messages
460
Bandwidth is not the only thing in networking.


Read all these to understand better:

There's also GEPON, but it's capped at 100 Mbps on user side.
 

aakshey

Member
Messages
171
In terms of ping and jitter, my ACT 150 (CAT6) was actually better than my Airtel GPON. What’s there to networking apart from speed, jitter and ping?

With CAT8 you can get 0-1ms ping, near 0 jitter, up to 40 Gbps speed. I don’t see this getting outdated for the next 20+ years anywhere in the world in the consumer space.

In fact, with CAT6 you can have all of the above but with 5-10 Gbps speed instead. Which too likely will last 10-15 years for high end users.

I don’t see 1+ Gig plans being necessary for Indian homes for 5+ years.

So why not keep it simple?
 


Dark_Nate

Member
Messages
460
@aakshey if it was better, there are thousands of variables that are the cause.

You should start with networking basics. Buy a book to learn more. This a forum, not a tuition place.

Edit: There are many misconceptions in networking for the layman and even some "professionals".

Network speed = Latency (lower is better)
Network Capacity = Bandwith (higher is better)
Network Lag = Bufferbloat aka Jitter = Idle latency + Loaded latency (lower is better)
 

aakshey

Member
Messages
171
But there are companies globally who are using Fibre through Routers and not through GPON. I asked the Airtel guy. He said fiber modems and fiber wiring is cheaper, more futureproof, and doesn’t need to be changed like CAT6 wiring.
 

Dark_Nate

Member
Messages
460
The Airtel guy is an idiot. First of all, there's no modulation/demodulation in Fibre Optics. So there's no such thing as "Fibre Modem". There's the only conversion from an optical signal to an electrical signal and vice versa in FTTH topology.

Fibre Optics is light. CAT6 is electrons. Do the math.
 


Dark_Nate

Member
Messages
460
@aakshey You seemed to be very interested in networking. I suggest you look up online tutorials and books.

Forget about GPON and Fibre Optics.
Start with the basics. I'm an IT graduate intending to specialise in networking in the future. I too start with basics.
 

aakshey

Member
Messages
171
@Dark_Nate What is the max capacity of the SMF Airtel is using?

Do Jio/ACT/Spectra use Single Mode too? If one changes ISP, is rewiring necessary?
 
Top