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FirstMile’s FTTx Triple-Play network architecture

FirstMile FTTx network is based on a point-to-point (PtP) architecture where each user is connected to a dedicated port on a central switch. The FirstMile FTTH network provides a cost-efficient and mature way to enable real triple play on a future-proof fiber infrastructure. It is commonly understood that PTP Ethernet is future-proof optical access architecture and technology that inherently allows open access and unprecedented bandwidth growth.Key points that distinguish this solution from alternatives are:
  • Easy to configure and plan
  • Future proof
  • Offers subscribers dedicated bandwidth based on their individual requirements and offers differential services for residential and business customers in the same area.
  • Flexible and can be built with ring redundancy as well as combination of other topologies.
  • Long reach.

There are two popular network architectures for FTTH – the point-to-point (P2P) connectivity architecture and the point-to-multi-point (P2MP)/ passive optical network (PON) connectivity architecture.
Comparison of both topologies:
Feature P2P topology P2MP topology
Scalability, future proof 100 Mbit/s to 10 Gbit/s 2.5 to 10Gbit
Bitrate sharing Dedicated bitrate Shared bitrate
Security High Requires encryption, vulnerable to DoS attacks
Upstream traffic management Highly sophisticated through switch matrix Limited by capabilities of MAC protocol
Interoperability OLT-CPE Easy Still challenging
Configuration and planning Easy Difficult
Operating Distance Long reach up to 80 km Limited by the split ratio