Modernizing Mission Critical Networks

March 20th, 2025
3 Minute Read

Legacy SDH/SONET Networks are Obsolete

Their is an urgent need for mission-critical networks, to transition from outdated SDH/SONET technologies to modern Packet Transport Networks (PTN). While SDH and SONET are reliable, their limitations in supporting emerging data services make them increasingly obsolete. The PTN, utilizing technologies like MPLS-TP and Circuit Emulation, offers low latency and high availability, essential for operational technology (OT) networks. Ribbon Communications provides tailored solutions to facilitate this shift, ensuring support for both legacy and modern services while maintaining network performance and simplifying operations. Their multi-stack MPLS technology enhances IT/OT convergence and enables critical industries to adapt to evolving regulatory and business demands.

    What's driving the transitioning from SDH/SONET to IP Transport Networks?

    The transition is driven by the obsolescence of SDH/SONET in meeting the demands of modern data services and the need for low-latency, high-availability solutions in mission-critical environments. Moving to a packet network has the added advantage of simplifying enterprise access. Running the SDH/SONET services on the packet network gives operators the opportunity to consolidate all enterprise services onto a single CPE.

    How does Ribbon facilitate the migration to IP Transport Networks?

    Ribbon provides a comprehensive suite of products and processes, including multi-stack MPLS and Circuit Emulation, to ensure a smooth transition that supports both legacy and modern services.

    What advantages does Ribbon MPLS-TP solution offer for mission-critical networks?

    MPLS-TP provides deterministic packet transport, essential for mission-critical services, ensuring low latency, low jitter, and reliable network performance.  Multi-stack MPLS provides critical industries with the comprehensive multi-protocol support they need for seamlessly integrating both new and legacy operational technology (OT) services and devices. Multi-stack MPLS provides critical infrastructures with the routing protocols they need to make IT/OT convergence and Utelco evolution straightforward:

    Multistack MPLS

    How does Ribbon’s Muse SDN domain controller enhance network management?

    The Muse SDN domain controller offers intuitive lifecycle management, performance monitoring, and integration capabilities that minimize manual errors and improve operational efficiency.

    Ribbon NPT Routers Features and Benefits:

    Extensive support for the legacy PCM and SDH/SONET interfaces required by Critical Industries:

    • Support for the full range of modern interfaces used by in both the OT and IT networks
    • Multi-service access routers able to support TDM, L2VPN, EVPN, L3VPNs
    • High capacity/multi-tera core routers required in the Core of the network
    • The advanced synchronization required in Critical Industries and to support 5G
    • The network segregation technology required to support both IT/OT convergence and the multitenancy required in any evolution to Utelco
    • Form factors which scale 8G to 14T
    • High availability with fully redundant hardware form factors
    • Support for redundant architectures such as dual-homing and LAG

    To learn more, access the full white paper below:

    Mission Critical Networks Whitepaper

    Subscribe to our Newsletter

    Subscribe