280 ITU‐T's Technical Reports and Specifications While Planning for Service provisioning and Network Operations, Demarcation points should be clearly defined between RSPs and Network operators. Business Users are generally provided GE level connectivity and P‐to‐P connectivity is provided by OLTs Ethernet Boards. Redundant connectivity is provided using 2 ports on OLT and it is preferred to use single fiber bidirectional solution to save the fiber required for Business Users connectivity. To provide connectivity to Business Users MDUs are preferred choice at customer end, as they provide abundant types of interfaces for Voice, Data and Video Transmission. In Scenarios where end Business user only requires Ethernet, specialized Ethernet switches can be utilized easily. The following table contains an example of an Open Access Network design (including GPON). Table 6 – Contains an example of an Open Access Network design Classification Example of Product or Hardware Description OLT Infrastructure Access network equipment Large‐capacity OLT Infrastructure Access network equipment Medium‐capacity OLT ONT Homegateway equipment Bridging+voice type, providing two POTS ports and four GE ports. Homegateway equipment Bridging type, providing four GE ports. Hardware dependency Service CPU used for subsystem for control plane traffic processing (SPUA) Use the SPUA board for upstream transmission when bandwidth control at RSP level or at RSP service level is required on the upstream ports of the OLT. 2.5.6 IP‐MPLS Network Backbone Network Following section discuss the IP‐MPLS (Converged IP Network) part of the Network. The products which support Open Access Network IP‐MPLS Network include: