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They set their local preferences based on where the route is learned
from. That takes precedence over AS path length.<br>
<br>
customer (140) > peer (100) > transit (70)<br>
<br>
-Laszlo<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 2015-12-23 07:16, Tarig Yassin
wrote:<br>
</div>
<blockquote cite="mid:DUB120-W32DC1720333DAD8147094EBBE60@phx.gbl"
type="cite">
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<p class="MsoPlainText">Hi Afnog<br>
</p>
<p class="MsoPlainText"><br>
</p>
<p class="MsoPlainText">We're trying to loadshare two uplinks
from different upstream providers using AS-PREPEND.<br>
</p>
<p class="MsoPlainText"><br>
</p>
<p class="MsoPlainText">the issue is how matter we prepend the
2nd link still the 1st link is preferred.<br>
</p>
<p class="MsoPlainText"><br>
</p>
<p class="MsoPlainText">To clarify more, despite the 2nd route
below has
longer AS-PATH, </p>
<p class="MsoPlainText">but still HE prefers the 1st route, I
try to
understand the reason,and
</p>
<p class="MsoPlainText">why the prepend won't work and why HE
changes the
value of Local-pref.
</p>
<p class="MsoPlainText"> </p>
<p class="MsoPlainText"><br>
</p>
<p class="MsoPlainText">> 41.202.160.0/24 AS-PATH: 1299,
2914,33788<span style="mso-spacerun:yes">
</span>Local-pref:70</p>
<p class="MsoPlainText">> 41.202.160.0/24 AS-PATH:
15412,33788,33788,33788<span style="mso-spacerun:yes">
</span>Local-pref:100</p>
<br>
thanks,<br>
-- <br>
Tarig Yassin<br>
Sudan<br>
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