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As an operator, can you imagine a situation when Optical Line Terminals (OLTs) and Optical Network Terminals (ONTs) purchased from various vendors simply refuse to work together? Such a situation is not uncommon whenever there is a switch-over to another equipment vendor to cut costs and meet sustainability goals. Or when adding another vendor to the network to minimise supply chain risks and vendor lock-in for instance. These situations increase demand for network-equipment interoperability. Here at Slovenia’s Kontron, we take interoperability issues off the table. We fully support operators whether they are expanding their network, or just complying with new regulations. What is the process of ensuring interoperability? Full interoperability is ensured by rigorous testing of equipment, followed by a thorough analysis of results, which either confirms equipment interoperability or not. If interoperability is not possible by default, software adjustments need to be made and software patches issued. These steps will then enable the components and products of various vendors to operate in the same network set-up.
FIBRE interoperability CHALLENGE
The solution for FTTH interoperability
NETWORK interoperability
The way OLTs and ONTs communicate is determined by two protocols, the OMCI and TR-069. n OMCI (ONU Management Control Interface) is a mechanism used by OLTs to configure, manage and monitor the ONTs. n TR-069 (Technical Report 069) is a technical specification from the Broadband Forum that defines an application-layer protocol for remote management and provisioning of customer-premises equipment (CPE) connected to an IP network. Special tools for ONT configuration and monitoring are typically used, namely an ACS (Auto-Configuration System) based on TR-069. These include Wi-Fi settings, firewall settings, voice and remote access. While TR-069 is a standardised protocol that all vendors of Layer-3 ONTs must adhere to, the complexity of the OMCI
Making interoperability the standard: OMCI and TR-069
May 2024 Volume 46 No.2
75
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