draft-xu-idr-fare

Fully Adaptive Routing Ethernet using BGP

groupnone stateactive pages12 rev04 expires2026-06-22 canonicalhttps://datatracker.ietf.org/doc/draft-xu-idr-fare/
Large language models (LLMs) like ChatGPT have become increasingly popular in recent years due to their impressive performance in various natural language processing tasks. These models are built by training deep neural networks on massive amounts of text data, as well as visual and video data, and often consist of billions or even trillions of parameters. However, the training process for these models can be extremely resource-intensive, requiring the deployment of thousands or even tens of thousands of GPUs in a single AI training cluster. Therefore, three-stage or even five-stage CLOS networks are commonly adopted for AI networks. The non-blocking nature of the network becomes increasingly critical for large-scale AI model training. Therefore, adaptive routing is necessary to dynamically distribute traffic to the same destination across multiple equal-cost paths, based on network capacity and even congestion information along those paths.