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<p class="MsoNormal"><span style="color:#365F91">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">I’m having this problem with BIRD refusing to import a specific route into the routing table. This is strange because this is the session with the neighbor is not new and all of his other prefixes work fine.
This is a newly added prefix.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">What I see:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">bird> show route all 185.200.156.0/22<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">185.200.156.0/22 via 185.1.40.2 on eth1 [as41059 2017-05-11] * (100) [AS61437i<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> Type: BGP unicast univ<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.origin: IGP<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.as_path: 41313 16154 61437<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.next_hop: 185.1.40.2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.med: 100<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.local_pref: 70<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.community: (0,42) (0,3856) (0,5483) (0,6939) (0,8400) (0,13335) (0,15169) (0,15958) (0,34772) (15169,13200) (16154,10000) (41059,2) (41059,65007) (41313,2) (49401,8877) (49401,49401)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.ext_community: (ro, 0, 197216)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">bird> sh route protocol as16154 all<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">185.200.156.0/22 via 185.1.40.12 on eth0 [as16154 2017-05-12] * (100) [AS61437i<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> Type: BGP unicast univ<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.origin: IGP<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.as_path: 16154 61437<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.next_hop: 185.1.40.12<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.local_pref: 100<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"> BGP.community: (15169,13300) (16154,10000) (41313,6699) (65000,208)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">For some reason the prefix is not installed in the master routing table even though it’s accepted from the neighbor. We use IN-filtering based on queries with irr tool and those queries are correct – the prefix
is correctly announced.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">From the above I can see that the neighbor prefix is learned after the first one (same prefix, learned from another path).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">I’ve cleared the bgp session with the neighbor without any change of the behavior. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">Is there a way to clear the route from the master routing table?
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91">I’d appreciate if someone can give me advice on the matter.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#365F91"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#1F497D;mso-fareast-language:BG">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D;mso-fareast-language:BG">Lyubo</span><span style="color:#365F91"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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