Jio Fiber is having issues with US traffic since last evening

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Isnt the 2.5gbps down and 1.25 gbps up speeds limited at ONT port only? Fiber cables itself can carry terabits per second data, isn't it?
 
Yes the limit is per port, and some thing that didn't occur to me earlier is that, the cable itself has multiple strands, so it is possible for an operator to attach each strand to a different port on the OLT. There is no significant additional cost for that. Then he could connect different customers to different strands depending on the load.

My point being, the operator wouldn't need to run a separate cable to serve a dense area.

Probably it's obvious, but it didn't occur to me until recently and was always thinking that if the link is saturated, the operator would need to run a totally separate cable and hence maintain multiple cables. 😂😂
 
varkey said:
Yes the limit is per port, and some thing that didn't occur to me earlier is that, the cable itself has multiple strands, so it is possible for an operator to attach each strand to a different port on the OLT. There is no significant additional cost for that. Then he could connect different customers to different strands depending on the load.

My point being, the operator wouldn't need to run a separate cable to serve a dense area.

Probably it's obvious, but it didn't occur to me until recently and was always thinking that if the link is saturated, the operator would need to run a totally separate cable and hence maintain multiple cables. 😂😂
Click to expand...

The cost of running or laying fiber is higher than the cost of cable itself. So operators typically use cables with twice the number of fiber stands required.
 

varkey said:
Yes the limit is per port, and some thing that didn't occur to me earlier is that, the cable itself has multiple strands, so it is possible for an operator to attach each strand to a different port on the OLT. There is no significant additional cost for that. Then he could connect different customers to different strands depending on the load.

My point being, the operator wouldn't need to run a separate cable to serve a dense area.

Probably it's obvious, but it didn't occur to me until recently and was always thinking that if the link is saturated, the operator would need to run a totally separate cable and hence maintain multiple cables. 😂😂
Click to expand...
Already this is done. Different wavelengths or colours of light are used on different strands in a way that they don't interfere with each other. It is called WDM or wavelength multiplexing. However it still doesn't bypass the limit for each GPON or 10gpon. Unless you put multiple ONTs then you could do it but that is what is happening on the entire network anyway. You have a central office divided in to local exchanges and then multiple ONTs in every little block of homes.
 

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