DCI Backbone Network Solution

By 2020, 90% of services will be cloudified. Cloudification will mainly be implemented in data centers (DCs). The scale of DCs will increase rapidly, and inter-DC traffic in the east-west direction will increase by 4 times within 5 years, representing a 32% CAGR. This will bring huge challenges to heavy traffic transmission and large-capacity service grooming.

DCs are migrating from population and economic centers to low-cost areas. This migration increases the distance between DC locations and end users, bringing challenges to distance and latency. In addition, the efficiency of cloud-based service provisioning is calculated by day and minute, posing high requirements for agile service provisioning.

Huawei's data center interconnect (DCI) backbone network solution meets backbone network requirements in the cloud era, providing customers with backbone networks that have large capacities, support long-haul transmission, and achieve low latency and fast service provisioning.

  • Large-capacity switching through OXC and OTN cluster
  • Huawei's latest OXC device implements all-optical switching for up to 32 degrees, each supporting over 20T capacity. The switching capacity of a single OXC device reaches 320T–640T. This means one OXC device can support full-mesh interconnection between super DCs. In contrast to an electrical switching device, an OXC device has zero latency and reduces both footprint and fiber connections by 90%. In addition, Huawei's OTN cluster supports up to 100T+ OTN switching, and allows slot sharing. It also achieves high reliability by inter-subrack physical isolation and low power consumption, which can fully support electrical-layer granularity switching.

  • Long-haul transmission capabilities, reducing TCO
  • Because DC equipment rooms require small device footprint and low power consumption, the use of CFP modules has become popular for DCI transmission. In contrast to the 100G MSA module, a 100G CFP module is pluggable and has higher integration and lower power consumption. The 100G CFP module is 70% reduced in size, consumes 50% less power, and supports plug and play. Huawei's 100G CFP module can achieve up to 5000 km transmission, and the 200G CFP module can achieve up to 3000 km transmission. Huawei's 100G submarine cable system supports a maximum transmission distance of 12,000 km under sea depths of 8000 m, allowing easy transoceanic transmission. In addition, titanium-alloy repeaters in the submarine cable system resist corrosion and run normally for 25 years.

  • Optimal service experience based on low latency
  • The end-to-end latency of a backbone network mainly consists of the fiber latency and the service processing and forwarding latency of the devices. Huawei's simplified network architecture with one-hop transmission significantly reduces the length of physical fibers and the number of forwarding nodes, and the OXC devices deployed in DCs have zero node latency, supporting the lowest end-to-end latency and guaranteeing an optimal service experience.

  • Agile services, fully satisfying customer requirements
  • TSDN makes networks more intelligent. It implements network functions in software mode to reduce department collaboration and manual approval processes, allowing users to easily provision bandwidth services in minutes. Users can also smoothly adjust bandwidths according to service requirement changes. In addition, TSDN satisfies customers' latency-specific routing requirements by supporting routing based on latency policies. After a route is selected, its latency can be promised, guaranteed, and managed. This fully satisfies customer requirements for low latency and fast service provisioning.

High Capacity

With 640T optical layer switching capacity and 100T+ electrical layer switching capacity

Best Service Experience

One hop to destination to ensure the lowest latency

Efficient Service Provisioning

Service provisioning implemented in minutes by TSDN


Industry-leading 100G/200G to realize long-haul transmission, reducing regenerators and saving TCO