Implementation and Deployment of Multiprotocol Services into a MPLS Critical Infrastructure Network

The network design follows the ENTSO-E N-1 reliability criterion and employs Virtual Private

Routed Networks (VPRNs) to provide hierarchical routing, traffic isolation, and scalability across substations. Circuit emulation techniques have been implemented to guarantee continuity of teleprotection and differential protection services during migration, while IEEE 1588 Precision Time Protocol ensures accurate synchronization for time-sensitive applications, reducing dependence on GNSS sources.

Key methods include the deployment of MPLS routers, service grouping through VPRNs, circuit emulation for legacy interfaces, and dedicated synchronization services. Cybersecurity and quality of service are addressed through firewalls, whitelisting, and pseudo-wire paths for jitter-sensitive traffic.

Results demonstrate that the IP/MPLS infrastructure achieves performance comparable to traditional circuit-switched systems, maintaining low latency, minimal bit errors, and stable synchronization. The network successfully integrates diverse corporate and operational services while ensuring high availability, security, and adaptability to future demands.