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<div class="moz-cite-prefix">On Sunday 07 October 2012 12:53 AM,
Markus Kittenberger wrote:<br>
</div>
<blockquote
cite="mid:CAKNLPNJX7JM216i54mv2j4ipeo+6nmrtgs7xq1TqQc3XvkSBZg@mail.gmail.com"
type="cite">On Fri, Oct 5, 2012 at 7:14 AM, Vigneswaran R <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:vignesh@atc.tcs.com" target="_blank">vignesh@atc.tcs.com</a>></span>
wrote:<br>
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Dear all,<br>
<br>
Recently we also noticed loops in the routes established
by OLSRv1, on a partial mesh topology (with ~20 machines).
We are using olsr 0.6.3 with default configuration file
and only Interface line has updated. Not using any
plugins. As of now wired connections and at the deployment
will be using wireless radios.<br>
<br>
Due to the loop, the packets sent through one Interface
and received on another.</div>
</div>
</blockquote>
<div>you mean return packets just took another route as the
packets towards?</div>
</div>
</blockquote>
<br>
Yes, exactly.<br>
<br>
<blockquote
cite="mid:CAKNLPNJX7JM216i54mv2j4ipeo+6nmrtgs7xq1TqQc3XvkSBZg@mail.gmail.com"
type="cite">
<div class="gmail_quote">
<div>this is normal, and you need e.g just 4 nodes with all
having 2 etx-1.0 links, aligned in a square, to have a 50%
chance to get this, and imho there is nothing wrong about
this,..</div>
</div>
</blockquote>
<br>
Ok. Thank you for the clarification.<br>
<br>
<br>
Regards,<br>
Vignesh<br>
<br>
<blockquote
cite="mid:CAKNLPNJX7JM216i54mv2j4ipeo+6nmrtgs7xq1TqQc3XvkSBZg@mail.gmail.com"
type="cite">
<div class="gmail_quote">
<div><br>
</div>
<div>Markus</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div> ssh, ping worked fine regardless of that. However, we
realized the loop when 'nmap' erroneously reported a node
as down.<br>
<br>
One point to note here is, when we conducted the test we
used <a moz-do-not-send="true" href="http://10.0.0.0/8"
target="_blank">10.0.0.0/8</a> subnet for all the nodes,
so that we can do random reconnects to simulate node
movements. However, Henning suggested to put different
Interfaces of the same router into different subnets (in
his reply on another thread). So, when we do the tests
again we will see whether that has any impact on loops.<br>
<br>
However, whether loop in routes are expected in general,
for such topologies? or by doing some configuration
changes can we avoid that?<br>
<br>
Thank you.<br>
<br>
<br>
Regards,<br>
Vignesh
<div>
<div class="h5"><br>
<br>
<br>
<br>
On Wednesday 27 June 2012 03:24 AM, Érico Porto wrote:<br>
</div>
</div>
</div>
<div>
<div class="h5">
<blockquote type="cite">
<div>I think he meant a file containing the following
lines</div>
<div><br>
</div>
<div>IpVersion 4</div>
<div>Interface "wlan0"</div>
<div>{</div>
<div>}</div>
<br clear="all">
Érico V. Porto<br>
<br>
<br>
<div class="gmail_quote">On Tue, Jun 26, 2012 at 4:27
PM, John Clark <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:jeclark2006@aim.com"
target="_blank">jeclark2006@aim.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word"><br>
<div>
<div>
<div>On Jun 26, 2012, at 12:06 PM, Markus
Kittenberger wrote:</div>
<br>
<blockquote type="cite">
<div><br>
<div class="gmail_quote">On Tue, Jun 26,
2012 at 8:29 PM, John Clark <span
dir="ltr"><<a
moz-do-not-send="true"
href="mailto:jeclark2006@aim.com"
target="_blank">jeclark2006@aim.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex"> Thanks all,<br>
<br>
I updated my olsrd to the 6.3
version that's on the download page.
Compiled ok, and did an install and
'install_libs', which seems to have
cured my problem with loading the
plugins.<br>
</blockquote>
<div>(you could have done an
install_all)</div>
<div><br>
</div>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex"><br>
I used the default installed
olsrd.conf, and only changed the
interfaces list.<br>
</blockquote>
<div>try to use a new olsrd.conf (i.e
an absolutely empty one except the
protcol version ipv4 or ipv6 and the
interface names)</div>
</div>
</div>
</blockquote>
<div><br>
</div>
</div>
I believe I'm using that conf, all I changed
was the interface list.</div>
<div><br>
</div>
<div>I'll recheck that...
<div><br>
<blockquote type="cite">
<div>
<div class="gmail_quote">
<div><br>
</div>
<div>this will use default settings
for everything, and might cure your
actual problems,..</div>
<div><br>
</div>
<blockquote class="gmail_quote"
style="margin:0 0 0
.8ex;border-left:1px #ccc
solid;padding-left:1ex"> As a note,
in the past, upon reflection, my
'meshes' have been either linear
chains or trees, and there have bee
no internal loops.</blockquote>
<div class="gmail_quote"><br>
</div>
olsrd works on such topologies, as
infact such topologies are what it is
meant to operate on.
<div> (it definetely does not need the
networks to be a tree,..)</div>
</div>
</div>
</blockquote>
<div><br>
</div>
</div>
I've been working on this more, and will try
to give more details as they come to me, but
at the moment, I have the problem when the one
link is removed, problems arise.</div>
<div><br>
</div>
<div><br>
</div>
<div>Thanks,</div>
<div>John Clark.</div>
<div><br>
</div>
</div>
<br>
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</blockquote>
</div>
<br>
<br>
<fieldset></fieldset>
<br>
</blockquote>
<br>
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</div>
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</blockquote>
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