LoopDetected

Andromeda answers 508 with the problem type https://uri.etsi.org/ngsi-ld/errors/LoopDetected. The request went to one context source, and that source is registered to send requests like this one back to Andromeda. Answering would loop forever, so Andromeda stops at the first turn. The specification sets 508 for a sole source that redirects back to this broker but names no error type for it, so LoopDetected is Andromeda's own name. See Andromeda's own types.

When this comes back

An exclusive or redirect registration makes one source the only holder of a resource, and that source redirects the request back to this broker. The same answer comes back when the source itself answers 508, because the request came round to a broker it had already passed through. Fix the registration at the other broker, or drop the registration that points at it. See When the one source fails and Sources that fail.

In a batch, the failure is reported against the entity that hit it in a 207 instead.