title: Augmented tree-based routing
text: # Augmented tree-based routing
  
  Augmented tree-based routing (ATR) protocol, first proposed in 2007, is a multi-path DHT-based routing protocol for scalable networks. ATR resorts to an augmented tree-based address space structure and a hierarchical multi-path routing protocol in order to gain scalability and good resilience against node failure/mobility and link congestion/instability.
  
  