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List: bird-users
Subject: bgp path metric
From: Rohrmann Sascha <Rohrmann () citkomm ! de>
Date: 2016-01-29 14:32:26
Message-ID: 4ccb6b85f1054bd4ab00b6ac653b8edc () STRAUBING3 ! citkomm ! local
[Download RAW message or body]
Hi,
I have 2 routers which perform an iBGP peer.
Now, every route, which they exchange should get a special metric (e.g: received \
route from same ASN, route metric= route metric + 100). How am I be able to influence \
that? I've already tried to check from which AS a route came and preprent (I am not \
sure if this is the correct keyword btw) it. Here's my filter settings so far:
export filter {
if bgp_path ~ [= ASN =] then
{
bgp.path.prepend (ASN,100);
accept;
}
};
I'd be thankful for every help.
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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I have 2 routers which perform an iBGP \
peer.<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US">Now, every route, \
which they exchange should get a special metric (e.g: received route from same ASN, \
route metric= route metric + 100).<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US">How am I be able to influence \
that?<o:p></o:p></span></p> <p class="MsoNormal"><span lang="EN-US">I’ve \
already tried to check from which AS a route came and preprent (I am not sure if this \
is the correct keyword btw) it.<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US">Here’s my filter settings so far:<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US">export filter {<o:p></o:p></span></p> <p \
class="MsoNormal"><span \
lang="EN-US"> \
if bgp_path ~ [= ASN =] then<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; \
{<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; &nb \
sp; \
bgp.path.prepend (ASN,100);<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; &nb \
sp; \
accept;<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> & \
nbsp; \
}<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"> \
};<o:p></o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US"><o:p> </o:p></span></p> <p class="MsoNormal"><span \
lang="EN-US">I’d be thankful for every help.<o:p></o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> <p \
class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p> </div>
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