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<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>We have some
problems with a network running OLSR v.0.4.10, in that the routes are not very
stable.</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>The problem seems
strange. The main points are:</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>- the
network contains 10 nodes. They are in fixed positions. Each</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>node has about 3
neighbours, and the maximum distance between nodes is 3 hops.</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>- the
routes are not stable. If one observes the routing table of</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>one node in a
given moment in time, and then observes it again after some seconds, many times
the observed routes are different</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>- this
seems related to the fact that some neighbors are listed as</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>non-symmetric
(they appear as symmetric for some moments, then appear as asymmetric, then
again as symmetric)</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>- the
percentage of lost packets over these asymmetric links,</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>however, is 0% in both
directions</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>We have already
tried in many ways to solve the problem… in particular we have increased
the validity time of hello messages up to 60 seconds, but the problem is still
there. </span></font><font size=2 face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New"'>Any idea?</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Thank you</span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'> </span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'>Gian Maria Giani</span></font></p>
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