Solution

• The P2P Messaging System offers efficient publish/subscribe communication for peer groups
  
  
• Main concepts: multiple overlay networks, multi-ring topology
  
  
• Decentralized Management
  
  
• Deals with peer-to-peer heterogeneity (and exploits it)
  
  
• Special degree of robustness. Peers are unreliable.
  
  
• Scalability. Allows large peer groups.