FQDN vs SHORTNAMES

What are the advantages in using fqdn instead of short names?  Is there any performance difference if I copy a file from a computer via \\shortname across a wan instead of \\shortname.domain.com?  

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redrumcoldAsked:
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marc_nivensConnect With a Mentor Commented:
FQDN vs. Short Name is only used when trying to locate a machine's IP address.  Once you have an SMB session established (aka a file copy) this shouldn't affect performance one way or the other.
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redrumcoldAuthor Commented:
Are there any areas it can affect... my server admin guys say that you can loose packets or something if you don't use fqdn over the wan.  Any of this true?
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marc_nivensCommented:
When it comes to resolving the name, yes.  FQDN will use DNS, which if setup correctly should never drop packets.  However, if you use NetBIOS name resolution (short name), and the local WINS server does not have the entry you're looking for, it will broadcast for the name.  This is a much less efficient way of resolving names.  However, once you have the IP address there should be no difference.
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