Removes one or more entries from the in-memory, local
    naming cache.

    flush [node node-id] session control naming cache entry "node-name"

    Note: The NCL session control naming cache (CDI cache)
    is not related to the DECdns cache files.

    To view what was in the CDI cache the last time a CDI checkpoint
    was taken, issue the following command:

    $ run sys$system:cdi_cache_dump

    To flush the entire CDI cache (with the exception of those for the
    local node and any aliases it may be using):

      flush session control naming cache entry "*"

    Or to flush single entries:

      flush session control naming cache entry "lamchp"

      flush session control naming cache entry "NET$490014000400010020"

      flush session control naming cache entry "IP$16.37.168.217"