zUpdate: updating data center networks with zero loss

  title={zUpdate: updating data center networks with zero loss},
  author={Hongqiang Harry Liu and Xin Wu and Ming Zhang and Lihua Yuan and Roger Wattenhofer and David A. Maltz},
Datacenter networks (DCNs) are constantly evolving due to various updates such as switch upgrades and VM migrations. Each update must be carefully planned and executed in order to avoid disrupting many of the mission-critical, interactive applications hosted in DCNs. The key challenge arises from the inherent difficulty in synchronizing the changes to many devices, which may result in unforeseen transient link load spikes or even congestions. We present one primitive, zUpdate, to perform… CONTINUE READING
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