This white paper explains the need for multi-layer data center interconnection networks and how they need to support dynamic access to cloud applications and services. Today's multiple, costly, static networks require manual provisioning and intervention across multiple layers and domains. They. AI, 5G, private wireless, IoT, Industry 4. 0 and more all have varying bandwidth, latency and reliability needs. Modern AI training requires thousands of GPUs to operate in perfect synchronization, sharing gradients and parameters continuously throughout training runs that can span weeks. A single large language model might involve 10,000+ accelerators communicating terabytes of data per second in complex. Equinix's most recent Global Interconnection Index3 and TeleGeography's Internet Map forecast a compound annual growth rate of 44% for global data center interconnection and predict that interconnection bandwidth will be 15x larger than internet bandwidth by 2024.
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