Charging for 200mbps while delivering 60mbps
Charging for 200mbps while delivering 60mbps
There’s no lower limit. It’s possible to subscribe for as many customers as needed, potentially affecting everyone. Your time slices are upload-only and can’t be increased. At least across the three vendors I tested. The reason gigabit isn’t available on GPON is clear—NGPON supports it.
I believe Openreach plans to provide Gigabit over GPON, but will charge a higher connection fee for upgrading to NGPON when needed. It's hard to fully grasp the details since Openreach already uses a non-standard approach for managing FTTC. Their dynamic line management system adjusts parameters and throttles traffic to prevent excess data from reaching the backhaul. This strategy could apply similarly to their FTTP system as well. It seems logical to reduce unnecessary traffic higher up the network, saving bandwidth on closer links near customers.
You need to manage the number of customers closely. 32 is usually the safe limit since splicing losses are minimal, but it won’t stop higher traffic like 5-10 on a gigabit PON. TCP can still handle balancing traffic if needed. It’s not perfect, but feasible. This approach is common. Most providers configure right after the access equipment and route directly to the core, as we do with routers placed close to the chassis. We also have several cores available. Modern access solutions can shape resources directly from the chassis. Older setups required manual adjustments and resource allocation that could cause oversubscription.
It's worth noting that many users have previously told me I was being unrealistic about traffic limits. The idea is to avoid overwhelming the customer beyond what can actually reach them. Even though TCP may slow down later, sending more than what arrives is pointless.