Just asking silly question

ronald911 said:
In Korea / Japan you can get 10gbps FTTH for about $55 per month.

Also worth noting, in Japan and Korea 100mbps is entry level, like 4mbps is in South Africa.
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Good point. Those are much more developed countries than South Africa.
 
As I understand it, most of our fibre network operators (except Vumatel trenched?) are using GPON, which means that up to 32 customers are connected (via passive fibre splitters) to a single OLT at the provider's hub. The OLT has a maximum downstream bandwidth of 2.4 Gbps which is shared between those customers. Obviously this means that you can't have 10 Gbps downstream. There are newer standards, compatible with GPON on the same fibre, which will allow for higher speeds, but they would require different OLTs at the provider and ONTs at the client.
 
For home internet, 10Gb/s is probably overkill. Businesses may benefit.

In the datacenter, network vendors are currently on 400Gb/s and working on 800 Gb/s - though this is usually back-haul for connecting switches together. It's kind of hard at the moment for even a fairly powerful server to get more than 80 Gb/s through a NIC. The switches handle it no problem though.
 
newby_investor said:
For home internet, 10Gb/s is probably overkill. Businesses may benefit.

In the datacenter, network vendors are currently on 400Gb/s and working on 800 Gb/s - though this is usually back-haul for connecting switches together. It's kind of hard at the moment for even a fairly powerful server to get more than 80 Gb/s through a NIC. The switches handle it no problem though.
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Our main data center is at 200Gb/s (NIC too). One typically needs a few cores to feed it, but 200Gb/s is achievable with some magic (bandwidth aggregator). It’s great for tightly coupled parallelism (sub usec signaling).
 
Increasing bandwidth is one side of tech optimising the actual need is another, look at Netflix as an example they are managing a 1080 stream at an average of ~3.5mbps.

Which ironically is what we see as the average demand per household at peak times.
 
PBCool said:
Increasing bandwidth is one side of tech optimising the actual need is another, look at Netflix as an example they are managing a 1080 stream at an average of ~3.5mbps.

Which ironically is what we see as the average demand per household at peak times.
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Interesting!

Have you noticed a drop-off in torrents with the rise of streaming?
 
ajcpt said:
As I understand it, most of our fibre network operators (except Vumatel trenched?) are using GPON, which means that up to 32 customers are connected (via passive fibre splitters) to a single OLT at the provider's hub. The OLT has a maximum downstream bandwidth of 2.4 Gbps which is shared between those customers. Obviously this means that you can't have 10 Gbps downstream. There are newer standards, compatible with GPON on the same fibre, which will allow for higher speeds, but they would require different OLTs at the provider and ONTs at the client.
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Holdup holdup. I'm not fully understanding this. So if up to 32 customers are connected to a single OLT but the maximum downstream is 2.4gbps ... Why are there 1gbps packages with Afrihost and coolideas ?(as far as I know of). So if like let's say 3 customers have 1gbps packages, it wouldn't work properly coz I mean the OLT wouldn't be able to handle a downstream of 3gbps? Am I wrong ? Could you kindly explain.
 
mathebus said:
Holdup holdup. I'm not fully understanding this. So if up to 32 customers are connected to a single OLT but the maximum downstream is 2.4gbps ... Why are there 1gbps packages with Afrihost and coolideas ?(as far as I know of). So if like let's say 3 customers have 1gbps packages, it wouldn't work properly coz I mean the OLT wouldn't be able to handle a downstream of 3gbps? Am I wrong ? Could you kindly explain.
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So I don’t know anything about the specific setup there, but in general (ignoring the other customers), the only time a degradation would be consistently noticed given the above is if all 3 of those customers are downloading at full bandwidth most of the time. It is common to oversubscribe, and rely on mostly non-Concurrent usage patterns. Most usage patterns are bursty, so this tends to work reasonably well (until it gets too far oversubscribed, of course).
 
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cguy said:
So I don’t know anything about the specific setup there, but in general (ignoring the other customers), the only time a degradation would be consistently noticed given the above is if all 3 of those customers are downloading at full bandwidth most of the time. It is common to oversubscribe, and rely on mostly non-Concurrent usage patterns. Most usage patterns are bursty, so this tends to work reasonably well (until it gets too far oversubscribed, of course).
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Also places that offer eg max 20 or 40 mbps service could get away with a 64 split, also if a area seems to have lots of gbps customers they could be split in smaller groups.
 
thehuman said:
Also places that offer eg max 20 or 40 mbps service could get away with a 64 split, also if a area seems to have lots of gbps customers they could be split in smaller groups.
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so do they do this once they notice the trend of higher gbps speeds? They add or split OLTs?
 
Honestly...not much point. You need both the server on the other end and your use case to be >gigabit which is exceedingly unlikely.

Torrents & usenet is pretty much the only thing that can reliably saturate gigabit. And even there...waiting 40 seconds or 80 seconds isn't exactly a life changing difference

Place I just moved out of was on the verge of getting 2gbps residential. Mostly just for the PR.
 
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