An OLT (Optical Line Terminal) is a key component in fiber-optic access networks, particularly in GPON and XGS-PON systems. It serves multiple roles:
* Switch or Router Role :
* The OLT acts as a Layer 2/Layer 3 switch or router, aggregating traffic from multiple ONUs (Optical Network Units) and forwarding it to the core network.
* Multi-Service Provisioning Platform :
* The OLT supports multiple services, including Internet access (data), voice (VoIP), and video (IPTV). It integrates these services over a single fiber infrastructure, making it a versatile platform for service providers.
* Why TRUE?
* The statement accurately describes the OLT's functionality as both a switch/router and a multi- service provisioning platform.
Thus, the correct answer is A .
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: OLT Functionality.
* GPON System Architecture by Huawei.