- Nameserver holds a sorted list of (hostname, peer, container id, ip) tuples.
- Entries are gossiped using topology gossip / broadcast - only new/updated entries
are propogated as expected.
- Entries for a given peer are removed when the connection to the peer is lost.
- Entries are tombstoned when containers die. Tombstones are kept for 10mins,
as they do not need to survive partition, only gossip propagation delay.
For a network, as used by IPAM, we care if *any* address in the range
could possibly conflict with an existing address routed by the host.
When given a single address, we only care if *that specific address*
conflicts with an existing route.
Bryan Boreham