NBN Co Network Design Rules

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NBN Co Network Design Rules 3 Network Design 3.1 High Level Design Overview The NBN Co network has been divided into domains to allow for communication of the overall solution. The target high level architecture is shown in Figure 1. This view includes the IT platforms, which are out of scope for this High Level Design, but must be interfaced to, to achieve a complete working solution. The target high level architecture will not be achieved for a number of years, and will be implemented in steps determined by the services introduced. A first step towards the target architecture is captured in Figure 2. These are domains introduced to support the NBN Co Fibre Access Service Ethernet Bitstream (Data) service, the NBN Co Wireless Access Service Ethernet Bitstream (Data) service, the NBN Co Fibre Access Service Multicast service and the NBN Co Fibre Access Service Analogue Telephony (Voice) service. The Satellite Access Service will be delivered in the future, and the supporting Satellite Access domain network design is still under development. The high level domains and their functions are as follows: Network: Key function is the carriage of customer traffic o Access: Various technology solutions to allow end users to be connected to the NBN Co network. The expected long term technology domains are Fibre (GPON), Wireless (LTE) and Satellite. o Transport: Provides transparent connectivity between network elements o Aggregation: Takes many interfaces from network elements and aggregates them for presentation on fewer interfaces back into network elements and vice versa. Also provides the point of interconnect for access seekers, the customers of NBN Co services Data Communications Network: networks that do not carry the Access Seeker to/from End User traffic. These networks carry OA&M related traffic and signalling traffic. Network Management: Systems that support the network carrying the customer service traffic. Functions include element management, time information, Authentication, Authorisation and Accounting (AAA) for access to network elements and connectivity between the equipment providing Network Management functions and the Network Elements themselves Control: those required to operate in real time (or very near real time) to support the establishment of an end user connection through to the Access Seeker 2
NBN Co Network Design Rules Lawful Interception: support the delivery of replicated customer traffic to Law Enforcement Agencies as legally required by the Telecommunications (Interception and Access) Act 1979. IT Platforms: Platforms supporting systems required for providing a customer portal, order acceptance, enforcement of business rules (e.g. number of active data services per NTD), activation, fulfilment, assurance and billing. Also includes systems required to interact with Element Management systems to operate the network carrying the customer traffic. IT Platforms Asset Management Portals & Online Services Information Management Assurance Access Seekers (Service Management) AS 1 Business & Financial Management Security Management Fulfilment & LNI AS 2 Lawful Interception LI Management System Network Management NW Support Systems I&AM Syslog PKI NTP Site Manager SSH Bastion Element Management Systems Satellite Wireless (LTE) Fibre OSS-RC AMS Satellite EMS SO-EM SDC Transport IPT NMS NetOP NCN TNMS Security EMS EMA Control Wireless Signalling Core (LTE) HSS MME EIR CUDB NoC LI Mediation System DNS Patrol/ Proactive Avamar OOB Terminals NW SS SMEM RDM GSS NTS NCN EMS Aggregation SAM PCRF Satellite NoC National Connectivity Network Security MPLS End Users CPE CPE Network WNTU ENodeB E-UTRAN VSAT Access Wireless (LTE) PDN GW Transport for wireless access Satellite Satellite RFGW Transport DWDM Ethernet Aggregation Aggregation Ethernet Fanout Access Seekers (End User Traffic) AS 1 AS 2 NTD Fibre PON OLT Direct Fibre Figure 1 Target High Level Architecture Context Diagram Network Access Aggregation End Users CPE CPE WNTU E-UTRAN VSAT ONT eNodeB Wireless (LTE) PDN GW Aggregation & Transport for Wireless Access Satellite Satellite RFGW Fibre (GPON) OLT Transport DWDM 3 rd Party Managed Service Ethernet Aggregation Ethernet Fanout Access Seekers (End User Traffic) AS 1 AS 2 PON Direct Fibre Figure 2 Focus of this Document 3
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