gpon questions

[anylettuce]

MY isp is using gpon, it seems to be the standard 1:32 splitter and 2.5 gbps download and some sort of upload I can't remember.

Taken that the max the network can produce is 2.5gbps, split it 32 times you get 75mbps per user.

How is it I see most isp using the 1:32 splitter yet still offer 1gbps to each customer?

Would they just upgrade at there end raising the 2.5gbps to something higher if the need is there? if so what is the max bandwidth the current gpon can handle? 

then there is the whole docsis 3.1 and the full 10gbps upload and download.

 

I do realize that both cable and fiber are shared and most of the time all 32 users won't be maxing out there connection all the time, still shouldn't fiber be able to handle more?

 

I only ask cause I am one of those power users and if I am using the full gig all the time won't that leave a small amount for everyone else to use? just thinking on this one.

[Donut417]

6 hours ago, anylettuce said:

MY isp is using gpon, it seems to be the standard 1:32 splitter and 2.5 gbps download and some sort of upload I can't remember.

Taken that the max the network can produce is 2.5gbps, split it 32 times you get 75mbps per user.

How is it I see most isp using the 1:32 splitter yet still offer 1gbps to each customer?

Would they just upgrade at there end raising the 2.5gbps to something higher if the need is there? if so what is the max bandwidth the current gpon can handle? 

then there is the whole docsis 3.1 and the full 10gbps upload and download.

 

I do realize that both cable and fiber are shared and most of the time all 32 users won't be maxing out there connection all the time, still shouldn't fiber be able to handle more?

 

I only ask cause I am one of those power users and if I am using the full gig all the time won't that leave a small amount for everyone else to use? just thinking on this one.

On Fiber Im pretty sure they just have to replace the equipment at the end to get more out of it. 

 

Also, Technically Docsis 3.1 is only rated for 10Gbps down 2Gbps Up. Its the Docsis 3.1 Full Duplex that is rated for 10 Gbps down 10 Gbps up. Im pretty sure that standard is not out yet. Also Docsis 3.1 changes what channels are used for down stream and Up stream as well how much data can be pushed thru each downstream and upstream channel. Not sure for all cable providers but Comcast is reducing the number of people on each node and they are killing nested nodes. Which are nodes connected to nodes. So every node will have a fiber cable directly back to Comcast. Oh and while I know Verzion FIOS only puts 32 people on a fiber line. Cable companies have about 100-300 people on a fiber fed node. 

[anylettuce]

I was looking more into it after posting

ISP's have a few options

40gbps feed to the splitter, this would provide more than 1gbps to each ont. this should last a long time as most equipment only has 100/1000 Ethernet connection with some instances having 10gbps 

another option is reduce the # of times it splits.

Instead of 1:32 you could do 1:16 and install 2 of these. There is also 1:64 but no much use as far as I can tell.

 

my isp also offers iptv

doing the math for worst case senario

32gbps for internet

2.3gbps for iptv still leaves room for things like 4k