Thanks! "OLT" was also new to me. In case others find it helpful:
> OLT = Optical Line Terminal.
> In ISP fiber (typically GPON/EPON) infrastructure, it’s the provider-side device at the central office/headend that terminates and controls the passive optical network: it connects upstream into the ISP’s aggregation/core network and downstream via fiber (through splitters) to many customers’ ONTs/ONUs, handling PON line control, provisioning, QoS, and traffic aggregation.
Thanks.. was reading the article like WTF is "BNG"
Is it the FTTX equivalent of a BRAS?
I have been worked for a regional ISP 10 years ago and having an architecture like that one, would be a godsend.
With centralized BNGs we were not able to apply upstream QoS policies for subscribers on the backhaulings and we had to apply policies on DSLAM access ports.
We ended using a couple of cheap Mikrotik as PPPoE concentrators for every access room, in a similar way as you did. But the reliability of Mikrotik routers was not the best
I'm curious as to what actually is the CPU <-> NPU bandwidth in these whitebox OLTs? Traditionally that has been sized for small amounts of punted control plane packets, then programming a fast path into the NPU for revenue traffic.
Can Iran like internet ban happen? i feel the answer is no. We can finally escape govt sponsored censorship
The [ONT → OLT(+BNG)] → Internet] sections of the paths will continue to be owned by commercial entities that can still be the subject of court orders and/or government pressure.
Even if you were to roll your own cable in the ground to your own ONT/OLT/BNG at some point you will need to acquire IP transit or peering from other commercial entities.
The latter usually isn't that difficult, just expensive. You can usually rent a leased line from anywhere to anywhere. The government will still come knocking if they think you're evading their censorship.
A leased line though will only get you A<->B where sure, A and B can be anywhere but have to be concrete locations/hand off points when provisioned. It does ultimatley come down to the service that one orders from a commercial entity.
A hypothetical court order saying something like "kill internet access" would likely cause an IP transit service to stop working (implemented by said provider no longer announcing global IP routing tables to that service) but a leased line between two locations would likely remain untouched since that isn't an "internet" service. So they might not need to come knocking if they're reasonably confident that all such edge cases like leased lines end up at dead-ends because any internet-capable product they might be enabling access to is sufficiently disabled.
I do imagine though that if they get as far as "kill the internet" that obtaining a subsequent court order to go after some suspicious leased line would be trivial.
As a side note, I find that IP transit is typically the cheapest aspect of providing an internet service since a cross-connect at a well connected DC will cost well under $1/Mbps/month unmetered. Plus the cost is very well amortized when residential users are the target. This has tended to hold when one takes into account the co-lo costs as well since network gear doing relatively basic packet forwarding/internet table routing doesn't take up that much space or power.
It can always happen. The government would just have to arrest everyone who doesn't comply, like they do in Iran.
Because TFA never bothered to define it:
Broadband Network Gateway (BNG)[1]
[1]: https://github.com/codelaboratoryltd/bng#bng-broadband-netwo...
Thanks! "OLT" was also new to me. In case others find it helpful:
> OLT = Optical Line Terminal.
> In ISP fiber (typically GPON/EPON) infrastructure, it’s the provider-side device at the central office/headend that terminates and controls the passive optical network: it connects upstream into the ISP’s aggregation/core network and downstream via fiber (through splitters) to many customers’ ONTs/ONUs, handling PON line control, provisioning, QoS, and traffic aggregation.
Thanks.. was reading the article like WTF is "BNG"
Is it the FTTX equivalent of a BRAS?
I have been worked for a regional ISP 10 years ago and having an architecture like that one, would be a godsend. With centralized BNGs we were not able to apply upstream QoS policies for subscribers on the backhaulings and we had to apply policies on DSLAM access ports.
We ended using a couple of cheap Mikrotik as PPPoE concentrators for every access room, in a similar way as you did. But the reliability of Mikrotik routers was not the best
I'm curious as to what actually is the CPU <-> NPU bandwidth in these whitebox OLTs? Traditionally that has been sized for small amounts of punted control plane packets, then programming a fast path into the NPU for revenue traffic.
Can Iran like internet ban happen? i feel the answer is no. We can finally escape govt sponsored censorship
The [ONT → OLT(+BNG)] → Internet] sections of the paths will continue to be owned by commercial entities that can still be the subject of court orders and/or government pressure.
Even if you were to roll your own cable in the ground to your own ONT/OLT/BNG at some point you will need to acquire IP transit or peering from other commercial entities.
The latter usually isn't that difficult, just expensive. You can usually rent a leased line from anywhere to anywhere. The government will still come knocking if they think you're evading their censorship.
A leased line though will only get you A<->B where sure, A and B can be anywhere but have to be concrete locations/hand off points when provisioned. It does ultimatley come down to the service that one orders from a commercial entity.
A hypothetical court order saying something like "kill internet access" would likely cause an IP transit service to stop working (implemented by said provider no longer announcing global IP routing tables to that service) but a leased line between two locations would likely remain untouched since that isn't an "internet" service. So they might not need to come knocking if they're reasonably confident that all such edge cases like leased lines end up at dead-ends because any internet-capable product they might be enabling access to is sufficiently disabled.
I do imagine though that if they get as far as "kill the internet" that obtaining a subsequent court order to go after some suspicious leased line would be trivial.
As a side note, I find that IP transit is typically the cheapest aspect of providing an internet service since a cross-connect at a well connected DC will cost well under $1/Mbps/month unmetered. Plus the cost is very well amortized when residential users are the target. This has tended to hold when one takes into account the co-lo costs as well since network gear doing relatively basic packet forwarding/internet table routing doesn't take up that much space or power.
It can always happen. The government would just have to arrest everyone who doesn't comply, like they do in Iran.
That could never happen here /s