<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Mar 30, 2022 at 5:14 PM Adam Thompson <<a href="mailto:athompson@merlin.mb.ca">athompson@merlin.mb.ca</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal">Hi,<u></u><u></u></p>
<p class="MsoNormal">I’m successfully using BIRD with the Go Looking Glass from <a href="https://github.com/xddxdd/bird-lg-go" target="_blank">
https://github.com/xddxdd/bird-lg-go</a>. I haven’t needed to use the birdc CLI until now, and I’m a bit confused by it in ways the docs don’t appear to address.<u></u><u></u></p>
<p class="MsoNormal">(I’m running default distro pkgs on Alma Linux 8.5, one of the post-CentOS RHEL rebuilds.)<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">The output I get looks like:<u></u><u></u></p>
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<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas">[root@lg2 ~]# birdc show route | head
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas">BIRD 2.0.9 ready.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas">Table master4:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"><a href="http://223.94.242.0/23" target="_blank">223.94.242.0/23</a> unreachable [uwpg_rtr1_v4 2022-03-26 from 216.73.71.131] * (100) [AS56041?]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"> unreachable [umrtr2_v4 2022-03-26 from 206.211.216.52] (100) [AS56041?]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"> unreachable [umrtr1_v4 2022-03-26 from 206.211.216.51] (100) [AS56041?]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"><a href="http://181.123.200.0/22" target="_blank">181.123.200.0/22</a> unreachable [umrtr1_v4 2022-03-26 from 206.211.216.51] * (100) [AS23201i]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"> unreachable [umrtr2_v4 2022-03-26 from 206.211.216.52] (100) [AS23201i]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"> unreachable [uwpg_rtr1_v4 2022-03-26 from 216.73.71.131] (100) [AS23201i]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"><a href="http://88.218.186.0/24" target="_blank">88.218.186.0/24</a> unreachable [umrtr1_v4 2022-03-26 from 206.211.216.51] * (100) [AS62240i]<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:8pt;font-family:Consolas"> unreachable [umrtr2_v4 2022-03-26 from 206.211.216.52] (100) [AS62240i]<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<li class="gmail-m_2279026861121610648MsoListParagraph" style="margin-left:0in">Is the “unreachable” bit normal on a looking glass / route collector?</li></ol></div></div></blockquote><div>It depends on your setup. It could affect best path selection if there are "reachable" routes, so be careful with that.</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;" lang="EN-CA"><div class="gmail-m_2279026861121610648WordSection1"><ol style="margin-top:0in" type="1" start="1"><li class="gmail-m_2279026861121610648MsoListParagraph" style="margin-left:0in">What’s with the “?” at the end of some ASes?</li></ol></div></div></blockquote><div>This displays one of BGP attributes. It is not the bird's thing, it is usual BGP thing. Description from bird's documentation:</div><div><dt><br><code></code></dt><dt><code>
<a name="rta-bgp-origin"></a> enum bgp_origin</code></dt><dd><p>Origin of the route: either <code>ORIGIN_IGP</code> if the route has originated
in an interior routing protocol or <code>ORIGIN_EGP</code> if it's been imported
from the <code>EGP</code> protocol (nowadays it seems to be obsolete) or
<code>ORIGIN_INCOMPLETE</code> if the origin is unknown.
</p></dd></div><div><a href="https://bird.network.cz/?get_doc&v=20&f=bird-6.html#rta-bgp-origin">https://bird.network.cz/?get_doc&v=20&f=bird-6.html#rta-bgp-origin</a></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;" lang="EN-CA"><div class="gmail-m_2279026861121610648WordSection1"><ol style="margin-top:0in" type="1" start="1"><li class="gmail-m_2279026861121610648MsoListParagraph" style="margin-left:0in">Where’s the AS paths? All I seem to get is the terminal AS.</li></ol></div></div></blockquote><div>Use "all" switch for "show route" command to see all attributes.</div><div><a href="https://bird.network.cz/?get_doc&v=20&f=bird-4.html#cli-show-route">https://bird.network.cz/?get_doc&v=20&f=bird-4.html#cli-show-route</a></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;" lang="EN-CA"><div class="gmail-m_2279026861121610648WordSection1">
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I’m not sure if I’m not using the tool correctly, or if I’m even using the right tool in the first place.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Pointers / clues appreciated?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks,<u></u><u></u></p>
<p class="MsoNormal">-Adam<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><b><span style="font-size:10pt;color:rgb(68,84,106);background:white none repeat scroll 0% 0%">Adam Thompson</span></b><span style="font-size:9pt;color:rgb(68,84,106);background:white none repeat scroll 0% 0%"><br>
Consultant, Infrastructure Services<br>
<img style="width: 1.3333in; height: 0.4083in;" id="gmail-m_2279026861121610648Picture_x0020_1" src="cid:17fdbb382294cff311" alt="MERLIN" width="128" height="39" border="0"><br>
100 - 135 Innovation Drive<br>
Winnipeg, MB, R3T 6A8<br>
(204) 977-6824 or 1-800-430-6404 (MB only)<br>
<a href="mailto:athompson@merlin.mb.ca" target="_blank"><span style="color:blue">athompson@merlin.mb.ca</span></a><br>
<a href="http://www.merlin.mb.ca/" target="_blank"><span style="color:blue">www.merlin.mb.ca</span></a></span><span style="font-size:12pt;color:black"><u></u><u></u></span></p>
<p class="MsoNormal"><u></u> <u></u></p>
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