As 5G services evolve and diversify, network slicing emerges as a foundational technology—enabling transport networks to deliver customized, on-demand, and performance-assured services across multiple domains and layers.
In the ALLEGRO architecture, Transport Network Slicing is realized through a combination of intelligent control layers and automation-ready infrastructure. Here’s how it works:
🔁 Intent-Driven Architecture
📨 A 3GPP-formatted intent is received via the Northbound Interface (NBI).
🔄 The Slice Controller translates it into IETF-compliant format and defines a Network Resource Partition (NRP) with topology details.
🧠 The High-Level Resource Allocation Tool (HRAT) maps viable routes and resource allocations—or provides reconfiguration suggestions if current conditions can’t support the slice.
⚙️ The Realizer instantiates the slice across domains, with the multi-layer topology database maintaining consistent network visibility.
🌐 Why It Matters
✔️ Delivers personalized 5G transport services with guaranteed KPIs
✔️ Maximizes infrastructure utilization
✔️ Enables real-time adaptability for service-specific SLAs
✔️ Powers closed-loop automation, intent assurance, and proactive performance monitoring
📊 ALLEGRO’s use of YANG-based data models across the stack ensures:
✅ Automation-ready lifecycle management
✅ Multi-layer service abstraction
✅ Seamless orchestration from slice creation to KPI monitoring
This architecture unlocks the full potential of transport network slicing—paving the way for intelligent, autonomous, and agile service delivery in future networks.
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