Packet routers route data packets based on existing topology files. The packet routers hash the existing topology files into content-addressed objects and exchange the content-addressed objects. One of the routers modifies its topology file into a new topology file, hashes the new topology file into a new content-addressed object, and transfers the new content-addressed object to the other packet routers. The packet routers exchange the content-addressed objects, and in response, exchange the topology files. The routers establish a consensus on the new topology file based on the existing topology files. The one packet router routes additional data packets based on the new topology file in response to the consensus. In some examples, the content-addressed objects comprise Inter-Planetary File System (IPFS) objects.