const IDENTITIES: usize = 1;Expand description
One identity — the administrator’s. Channels and queues are sized for a tool that talks to one device at a time and holds one exchange open while it does.
Peers are sized for discover instead, which is the one command that
meets a crowd: every stranger that answers a solicitation is
auto-registered from the full key it sends, and the registry evicts
the least recently used once it is full. Four slots would have made a
discovery of any size report the last four nodes to speak. This is a
host tool with a host’s memory.