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Cell Relay Retreat>List Archive>month:1997-Nov> msg00174



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Re: UNI & NNI

  • From: 1099j15p <1099j15p@mail.sendanet.es>
  • Date: Tue, 25 Nov 1997 10:41:50 +0100


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jae young park wrote:

>  Hi everyone! I'm korean and study to ATM technology.Is there who
> explane to me the difference of  UNI and NNI(basically)?
> UNI is aplied to the link  between User and Public Network Node
> NNI is for internal Public Network links, mean routing of atm cells
>
>  I know that there is some different of it's cell header, and heard
> that UNI  is an interface between ATM end-user and a private ATM
> switch but NNI is an interface between ATM switch.
> first byte has nibble with  Generic Flow Control (GFC) not used, while
> NNI all byte is for VPI allowing more
> internal routes in the switching.Please give me detail information
> about which I mentioned above or reference site(document) to study
> look atm-forum and cisco files. Try yahoo, lycos etc...
> . Thanks...
> -----------------------------------------------------------------------
> glory823@nuri.net or
> glory823@tst.co.krhttp://members.iworld.net/glory823
> -----------------------------------------------------------------------
>



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<P>jae young park wrote:
<BLOCKQUOTE TYPE=CITE>&nbsp;<FONT COLOR="#000000"><FONT SIZE=-1>Hi everyone!</FONT></FONT>&nbsp;<FONT COLOR="#000000"><FONT SIZE=-1>I'm
korean and study to ATM technology.</FONT></FONT><FONT SIZE=-1>Is there
who explane to me the difference of&nbsp; UNI and NNI(<B><I><FONT COLOR="#FF0000">basically</FONT></I></B>)?</FONT>
<BR><FONT SIZE=-1>UNI is aplied to the link&nbsp; between User and Public
Network Node</FONT>
<BR><FONT SIZE=-1>NNI is for internal Public Network links, mean routing
of atm cells</FONT>
<BR><FONT SIZE=-1></FONT>&nbsp;
<BR><FONT SIZE=-1></FONT>&nbsp;<FONT SIZE=-1>I know that there is some
different of it's cell header, and heard that UNI&nbsp; is an interface
between ATM end-user and a private ATM switch but NNI is an interface between
ATM switch.</FONT>
<BR><FONT SIZE=-1>first byte has nibble with&nbsp; Generic Flow Control
(GFC) not used, while NNI all byte is for VPI allowing more</FONT>
<BR><FONT SIZE=-1>internal routes in the switching.</FONT><FONT SIZE=-1>Please
give me detail information about which I mentioned above or reference site(document)
to study</FONT>
<BR><FONT SIZE=-1>look atm-forum and cisco files. Try yahoo, lycos etc...</FONT>
<BR><FONT SIZE=-1>.</FONT>&nbsp;<FONT SIZE=-1>Thanks...&nbsp;
<HR><A HREF="mailto:glory823@nuri.net">glory823@nuri.net</A> or <A HREF="mailto:glory823@tst.co.kr">glory823@tst.co.kr</A></FONT><FONT COLOR="#000000"><FONT SIZE=-1><A HREF="http://members.iworld.net/glory823">http://members.iworld.net/glory823</A>&nbsp;</FONT></FONT>
<HR><FONT SIZE=-1>&nbsp;</FONT></BLOCKQUOTE>
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