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    Il 03/11/2011 10:55, Markus Kittenberger ha scritto:
    <blockquote
cite="mid:CAKNLPNK316t_nKPsgEm_hxt++gfL+nhfR=QEUH-iu3aG4FmhMQ@mail.gmail.com"
      type="cite"><br>
      <br>
      <div class="gmail_quote">On Thu, Nov 3, 2011 at 10:47 AM, Giovanni
        Di Stasi <span dir="ltr"><<a moz-do-not-send="true"
            href="mailto:giovanni.distasi@unina.it">giovanni.distasi@unina.it</a>></span>
        wrote:<br>
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          <div text="#000000" bgcolor="#ffffff"> Il 31/10/2011 18:53,
            Markus Kittenberger ha scritto:
            <div class="im">
              <blockquote type="cite"><br>
                <br>
                <div class="gmail_quote">On Mon, Oct 31, 2011 at 4:02
                  PM, Giovanni Di Stasi <span dir="ltr"><<a
                      moz-do-not-send="true"
                      href="mailto:giovanni.distasi@unina.it"
                      target="_blank">giovanni.distasi@unina.it</a>></span>
                  wrote:<br>
                  <blockquote class="gmail_quote" style="margin: 0pt 0pt
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                    204); padding-left: 1ex;">
                    <div text="#000000" bgcolor="#ffffff"> Il 30/09/2011
                      10:55, Markus Kittenberger ha scritto:
                      <div>
                        <blockquote type="cite">olsrd would drop all
                          links if u take the interface down and not
                          changing its channel while it stays
                          (logically) up all the time.
                          <div><br>
                          </div>
                          <div>ip link set down dev wlan0</div>
                          <div>iwconfig wlan0 channel x</div>
                          <div>ip link set up dev wlan0</div>
                          <div><br>
                          </div>
                          <div>maybe iwconfig does not work on an downed
                            interface (depends on the wlan driver), than
                            swap order of line 2 and 3,.</div>
                          <div><br>
                          </div>
                        </blockquote>
                        <br>
                      </div>
                      I have done the following that seems to help a
                      bit:<br>
                      <br>
                      iwconfig wlan0 channel X<br>
                    </div>
                  </blockquote>
                  <div>hmm dont you have different bssids on your
                    channels? <br>
                  </div>
                </div>
              </blockquote>
            </div>
            Yes, I do. I don't set the bssid, but just the essid and the
            channels. <br>
          </div>
        </blockquote>
        <div><br>
        </div>
        <div>thats mostly fine (as long as u do not suffer from bssid
          splits)</div>
        <div>(thats why i would recommend setting bssid)</div>
      </div>
    </blockquote>
    fortunately I am not seeing bssid splits...<br>
    <br>
    <blockquote
cite="mid:CAKNLPNK316t_nKPsgEm_hxt++gfL+nhfR=QEUH-iu3aG4FmhMQ@mail.gmail.com"
      type="cite">
      <div class="gmail_quote">
        <div><br>
        </div>
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          <div text="#000000" bgcolor="#ffffff"> Why do you ask that?</div>
        </blockquote>
        <div><br>
        </div>
        <div>as setting the same bssid on different channels, is no good
          idea, but afaic some people do it for simplicity,.. <br>
        </div>
      </div>
    </blockquote>
    Why do you think is not a good idea? <br>
    <br>
    <br>
    <blockquote
cite="mid:CAKNLPNK316t_nKPsgEm_hxt++gfL+nhfR=QEUH-iu3aG4FmhMQ@mail.gmail.com"
      type="cite">
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        <div><br>
        </div>
        <div>Markus</div>
        <div><br>
        </div>
        <div>
          <div>p.s. regarding window, afair there are (besides message
            interval) no (configuration) tuneables in actual linksensing</div>
        </div>
        <div><br>
        </div>
        <div>but how long does it need for you until a new link
          is symmetric?</div>
        <div><br>
        </div>
      </div>
    </blockquote>
    It takes something like 35-40s (which leads to something like 40s
    for a UDP connection to recover and 52s for a TCP connection). <br>
    The idea was to tune the parameters to show that it was possible to
    speed up the link establishment.<br>
    <br>
    Thanks,<br>
    Giovanni<br>
    <br>
    <br>
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