BGP Extensions for Service Routing of Mobile Core Networks

This document describes a new route propagation and service discovery mechanism by proposing BGP extensions for mobile core network service routing. The proposed solution introduces a Service Route Address Family, hierarchical Network Identifier allocation, and path-aware routing mechanisms that enable scalable inter-domain service discovery while preserving compatibility with current 3GPP standards. These extensions provide the foundation for efficient service propagation, route aggregation, and loop-free routing in large-scale distributed mobile core deployments.