Attempting to attach an interator who's name includes dots results in messages on the remote end from IteratorUtil - "Unrecognizable option: ITERNAME". No errors no warnings, when they are attempted to be attached. They get added to the config without issue.
But when you do something like listiter, they don't show up and then warnings appear in the logs/on the monitor.
We should either:
A. allow iterators with dots in the name
B. doc that this isn't allowed and check server side when they are set.