Discovered an interesting problem with cjdns snodes, which I guess applies also to BGP routers.

An snode piggybacks on top of a cjdns node. The node that it piggybacks on GENERALLY uses that snode as it's source of truth.

But the problem is that snodes need to be able to interconnect with each other to exchange routing information.

If one snode has one network around it, and another snode has another network around it, finding a path from A->B is impossible without asking the boundary nodes what is the path to THEIR snode.

Once a route is established and network info has been swapped, the problem is mostly solved, but bootstrapping is quite tricky.