[Bloat] [Starlink] On fiber as critical infrastructure w/Comcast chat

David Lang david at lang.hm
Sat Mar 25 20:28:48 EDT 2023

No, the primary cost (other than laying the fiber) is in the electronics to 
route the packets around once they leave the optics, and the upstream bandwith 
and peering to other ISPs.

laying the fiber is expensive, optics are trivially cheap in comparison, but 
while the theoretical bandwidth of the fiber is huge, that's only for the one 
hop, once you get past that hop and have to deal with the aggregate bandwidth of 
multiple endpoints, something has to give.

David Lang

On Sat, 25 Mar 2023, Robert McMahon wrote:

> The primary cost is the optics. That's why they're p in sfp and pay go
> Bob
> On Mar 25, 2023, 4:35 PM, at 4:35 PM, David Lang <david at lang.hm> wrote:
>> On Sat, 25 Mar 2023, Robert McMahon via Bloat wrote:
>>> The fiber has basically infinite capacity.
>> in theory, but once you start aggregating it and having to pay for
>> equipment
>> that can handle the rates, your 'infinite capaicty' starts to run out
>> really
>> fast.
>> David Lang
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