What does Transparent Networking Substrate (TNS) mean ?

Hello,
what does Transparent Networking Substrate (TNS) mean?
I searched several Oracle documentations but couldn't find a plain explanation!
Thanks
Axel

In addition to the glossary definition...
For what most people care about, TNS is a layer that transparently allows you to use a variety of different methods to resolve database aliases. You can configure a tnsnames.ora file, you can set up Oracle Names, an LDAP directory, or you can use host names.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

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