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<TITLE>Release 1.5.0b1 Phase-2 PMTU - Test #9 Host Test</TITLE>
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<DIV><SPAN class=260321714-12122007><FONT face=Arial size=2>Hello 
All,</FONT></SPAN></DIV>
<DIV><SPAN class=260321714-12122007><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=260321714-12122007><FONT face=Arial size=2>I =
reported this 
issue last Thursday and have not yet heard back from anyone.&nbsp; Do =
you 
require further clarification on any points?&nbsp; If so, please let me 
know.</FONT></SPAN></DIV>
<DIV><SPAN class=260321714-12122007><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=260321714-12122007><FONT face=Arial size=2>Best 
Regards,<BR>Tammy Leino</FONT></SPAN></DIV>
<DIV><SPAN class=260321714-12122007><FONT face=Arial 
size=2></FONT></SPAN>&nbsp;</DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
  <DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma 
  size=2>-----Original Message-----<BR><B>From:</B> Leino, Tammy 
  <BR><B>Sent:</B> Thursday, December 06, 2007 4:42 PM<BR><B>To:</B> 
  users@tahi.org<BR><B>Subject:</B> [users:00426] Release 1.5.0b1 =
Phase-2 PMTU - 
  Test #9 Host Test<BR><BR></FONT></DIV><!-- Converted from text/rtf =
format -->
  <P><FONT face=Arial size=2>Hello All,</FONT> </P>
  <P><FONT face=Arial size=2>There is a discrepancy in the test =
procedure 
  diagram and description for this test.&nbsp; The MTU in the Packet Too =
Big 
  message is actually 56 for this test, and not zero as shown in the =
procedure 
  diagram.</FONT></P>
  <P><FONT face="Courier New" size=2>&nbsp;&nbsp; 
  =
TN2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
TR1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  NUT<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|--------------------------------------------&gt;|<BR>&nbsp;&nbsp;&nbsp; =
  |&nbsp;&nbsp; 1.Echo Request&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; (1280 
  octets)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&lt;--------------------------------------------|<BR>&nbsp;&nbsp;&nbsp; =
  |&nbsp;&nbsp; 2.Echo Reply&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; (1280 
  octets)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  +---------------------&gt;|<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |&nbsp; 3.Packet Too Big&nbsp;&nbsp;&nbsp; |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |&nbsp;&nbsp;&nbsp; (MTU 
  0)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|--------------------------------------------&gt;|<BR>&nbsp;&nbsp;&nbsp; =
  |&nbsp;&nbsp; 4.Echo Request&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; (1280 
  octets)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&lt;--------------------------------------------|<BR>&nbsp;&nbsp;&nbsp; =
| 
  5.Echo Reply&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; (1288 
  octets)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
|&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  |<BR>&nbsp;&nbsp;&nbsp; 
  =
v&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  =
v&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
  v</FONT> </P>
  <P><FONT face=Arial size=2>Also, can someone please explain to me =
why the NUT 
  would echo 1288 bytes when it receives only 1280 bytes?&nbsp; I am =
referring 
  to #4 and #5 of the above diagram.</FONT></P>
  <P><FONT face=Arial size=2>I am having trouble understanding why =
this test 
  expects the NUT to fragment the echo reply when the packet size is =
equal to 
  the IPv6 minimum link MTU.&nbsp; We do not fragment until we reach the =
link 
  MTU of 1500.&nbsp; Even if we set the link MTU to 1280, the IPv6 =
minimum link 
  MTU, we should not fragment a 1280 byte echo reply packet.&nbsp; I'm =
sure I am 
  overlooking something here.&nbsp; Your advice is greatly 
  appreciated.</FONT></P>
  <P><FONT face=Arial size=2>Best Regards,<BR>Tammy Leino</FONT> 
</P></BLOCKQUOTE></BODY></HTML>