NBN Co Network Design Rules

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NBN Co Network Design Rules Greenfields Fibre Access Transit: Direct fibre is used between the OLTs housed in temporary FAN sites and the Managed Services interface (see Figure 26and Figure 27). Both 1000Base-LX and 1000Base-ZX interfaces are supported allowing for fibre distances of up to 70km to be supported. Wireless Access Transit: Direct fibre is supported between the Wireless Access network eNodeBs and Microwave Transport and the local FAN site. 1000Base-LZ and 1000Base-ZX interfaces are supported allowing for fibre distances of up to 70km to be supported. 38
NBN Co Network Design Rules 3.7 Aggregation Domain The Aggregation Domain performs fanout and aggregation of media between the Access Seekers and the Access Domain for both the Fibre and Wireless Access Services. Aggregation Domain network elements are exclusively deployed in Points of Interconnect sites (POIs). For the Fibre Access Service, the majority of metropolitan Fibre Access Node (FAN) sites will also be POI sites, where Access Seekers can connect their network equipment into the NBN Co – via the External Network-to-Network Interface (E-NNI) – to service all end-users hosted off the FANs associated with that POI. In regional areas where end-user densities are lower, it will be more common for FAN sites and POI sites to be in separate physical locations. For the Wireless Access service, the Aggregation Domain connects locally at the POI to the Wireless Access Domain. The Aggregation Domain network elements are: The Ethernet Aggregation Switch (EAS) The Ethernet Fanout Switch (EFS) The Ethernet Combined Switch (ECS) 1.1.22. Ethernet Aggregation Switch (EAS) This platform is used to aggregate a number of Access Domain network interfaces and provide traffic forwarding towards other Aggregation Domain network elements such as the EFS, or another EAS. To support Access Domain network interface resiliency, EAS are deployed in pairs. The EAS node is connected to its paired EAS node and to the EFS nodes using N × 10Gbps direct fibre links, where N is 1 to 5. EAS EFS N × 10Gbps N × 10Gbps N × 10Gbps EAS EFS Figure 29 Aggregation Domain interfaces on the EAS 39
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NBN Co Network Design Rules

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