NBN Co Network Design Rules
NBN Co Network Design Rules
NBN Co Network Design Rules
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<strong>NBN</strong> <strong>Co</strong> <strong>Network</strong> <strong>Design</strong> <strong>Rules</strong><br />
Aggregation<br />
Domain<br />
Access Seekers<br />
Access<br />
Wireless<br />
Access<br />
Nodes<br />
Fibre<br />
Access<br />
Nodes<br />
Fanout and<br />
Aggregation<br />
ECS<br />
ECS<br />
E-NNI Mode A<br />
E-NNI Mode B<br />
E-NNI Mode B<br />
E-NNI Mode A<br />
AS 1<br />
AS 2<br />
AS n<br />
Figure 36 One tier aggregation architecture<br />
Whether the one tier or two tier architecture is used depends on the size of the Customer Serving<br />
Area (CSA).<br />
A CSA is comprised of a number of access service areas: Fibre Serving Areas (FSAs; each served by an<br />
OLT) and Wireless Serving Areas (WSAs; each served by a pair of PDN-GWs).<br />
44
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