HULA: Scalable Load Balancing Using Programmable Data Planes

@inproceedings{Katta2016HULASL,
  title={HULA: Scalable Load Balancing Using Programmable Data Planes},
  author={Naga Praveen Katta and Mukesh Hira and Changhoon Kim and Anirudh Sivaraman and Jennifer Rexford},
  booktitle={SOSR},
  year={2016}
}
Datacenter networks employ multi-rooted topologies (e.g., Leaf-Spine, Fat-Tree) to provide large bisection bandwidth. These topologies use a large degree of multipathing, and need a data-plane load-balancing mechanism to effectively utilize their bisection bandwidth. The canonical load-balancing mechanism is equal-cost multi-path routing (ECMP), which spreads traffic uniformly across multiple paths. Motivated by ECMP's shortcomings, congestion-aware load-balancing techniques such as CONGA have… CONTINUE READING

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