GlasfaserPortion

GlasfaserPortion is a term used in fiber-optic network planning and management to describe the share of fiber capacity allocated to a particular service, customer, or segment. It is typically expressed as a percentage of the total available fiber resources and can be applied at different levels of the network (core, distribution, access) or within specific contracts.

Definition and scope: The concept can refer to physical fiber elements such as strands or cores, as well as to usable capacity or bandwidth that is reserved or lit for a user. It is used in contexts such as open access networks, multitenant buildings, or joint ventures to model resource allocation and pricing.

Calculation: GlasfaserPortion = (allocated fiber capacity) / (total available fiber capacity) × 100%. Allocation can be measured by strand count, fiber length, or provisioned throughput. In practice, the denominator and numerator are defined by governance rules and monitoring data.

Applications: It supports fair access, cost sharing, budgeting for maintenance, and transparent reporting in network-sharing scenarios. It is commonly used in open access networks, wholesale fiber, and landlord-tenant arrangements.

Limitations: The metric may not reflect dynamic usage, traffic fluctuations, or future capacity changes. The choice of granularity and the time window can affect comparability.

Example: A building has 50 fiber strands. If Tenant A is assigned 15 strands, GlasfaserPortion equals 30%. See also related concepts such as Glasfaser, Fiber to the home, Open access networks, and Capacity planning.