By actively managing a distributed network-database, a router with *floodfill* capability has the ability to help maintain network stability and resiliancy while also being decentralized and trust-less.
Though floodfill itself is a simple storage system, the technical underpinnings of floodfill as it relates to @network-database and other protocols within @I2P are much more complex. Visit the [Network Database](https://geti2p.net/en/docs/how/network-database) page for details.