Some descriptions of this error I've found around the 'net are:
Components of path require hopping to multiple remote machines and file system type does not allow it.
This error occurs when users try to access remote resources that are not directly accessible.
I do not know which OS's this is used on, or what they are talking about. It's not used in the Linux kernel, and POSIX sheds it's usual level of enlightenment with it's riviting description of "Reserved".
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