Comparison of characteristics
| P2P Messaging System | Pastry/Scribe | JXTA's propagate pipe | |
| Scalability increasing measures | Multi-ring topology, ring for each topic | Routing, tree for each topic | Routing, separation of peer groups |
| Reliable message delivery | Messages may be lost because of multiple node failures | Messages may be lost because of single node failures | Messages may be lost for any reason |
| Quality-of-service parameters | Priority | None | None |
| Message filters | Current filter implementation does not avoid network traffic | No | No |