Backbone Network Modernization

As information technologies develop, backbone network traffic grows rapidly and some links become severely congested. In most cases, network traffic is not evenly distributed. The edge areas of a network may have light load but core areas become bottlenecked. In addition, DC interconnection services generate a large amount of east-west traffic, adversely impacting the traditional backbone network architecture that was designed for north-south traffic.

3D backbone network architecture dynamically shares network resources, supporting efficient traffic transmission and improving network reliability. This is a future-oriented network architecture.

3D backbone networks have the following features:

  • No additional interconnection boards are required over independent two-plane networks
  • The creation of an independent plane to interwork with existing networks requires client-side interconnection and extra regeneration boards, increasing network TCO. The construction of 3D backbone networks does not require extra regeneration boards. This reduces costs and E2E latency and shortens time to market (TTM). In addition, 3D backbone networks support unified O&M and share unified NMS and spare parts.

  • Reduced congestion on core links and improved wavelength utilization over the entire network A few expansions can double capacity. The entire network is a 40/80-wavelength system, but the wavelength utilization is uneven. System capacity is limited by several heavy-traffic links. Implementing 3D traffic distribution for a few heavy-traffic links effectively reduces wavelength utilization on the entire network, doubling the system capacity.
  • Enhanced network reliability in key areas, meeting the ultra-high reliability requirements of future services
  • Increasingly reliable resources must be provided on the foundation of original communication networks to add dimensions, improve service reliability, and support the high-value services of the future. These high-value services include telemedicine, autonomous driving, and Internet of things (IoT). The construction of 3D backbone networks multiplies reachable route resources in key areas. 3D backbone networks can use ASON and TSDN to greatly improve service survivability.

  • Network latency optimized through link expansion, reducing TCO
  • On a 1000 km WDM transmission network, 98% of the link latency is caused by optical fibers and DCMs. Link expansion enables the selection of the shortest path and DCM-free solution, supporting the lowest latency.

The rapid development of Internet services, increasing new services, and the comprehensive cloudification of network data storage, drive operators to perform Internet-based transformation and construct a DC-centric next-generation network architecture. 3D backbone network architecture better meets new services' requirements on traffic, latency, network robustness, and flexibility, supporting all-cloud evolution on operators' networks.

Customer Value

Reduced TCO

No extra regeneration boards are needed, with unified O&M and unified NMS and spare parts

Reduced Congestion on Core Links

Traffic-sensitive 3D distribution effectively reduces wavelength utilization on the entire network, doubling the system capacity

Enhanced Network Reliability

3D backbone networks multiple reachable route resources in key areas, and can use ASON and TSDN to greatly improve service survivability

Optimized Network Latency

Link expansion enables the selection of the shortest path and DCM-free solution, supporting the lowest latency

Related Products