Sure, imagine a network like a web where each node knows its neighbors. If you split the nodes into two groups, every node should maintain a link to at least one node in the opposite group. Then you can use a spanning‑tree protocol that re‑runs whenever a link drops, so the active part of the network keeps rebounding. Add a gossip protocol to spread heartbeat messages, and you’ll always know which half is alive. The trick is making sure the backup path has no single point of failure, so even if one side goes quiet, the other can reroute traffic and keep the service humming.