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<p class="MsoNormal">Most monitoring products allow you to monitor custom SNMP OIDs, and your entire BGP RIB is � usually � exposed via SNMP.<o:p></o:p></p>
<p class="MsoNormal">Most monitoring products also treat �missing� OIDs specially, and can alert on that fact.<o:p></o:p></p>
<p class="MsoNormal">At least, that�s how I would start doing it.<o:p></o:p></p>
<p class="MsoNormal">We use Observium here, and it can do what you want, albeit with a little bit of futzing around in the Custom OID and Alerts sections.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Cisco does weird things with getting SNMP data from VRFs, though, so� YMMV. I know there used to be a Cisco-proprietary way to select which VRF you were polling common OIDs from, but don�t remember the details.<o:p></o:p></p>
<p class="MsoNormal">-Adam<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;color:#44546A;background:white;mso-fareast-language:EN-CA">Adam Thompson</span></b><span style="font-size:9.0pt;color:#44546A;background:white;mso-fareast-language:EN-CA"><br>
Consultant, Infrastructure Services<br>
<img width="128" height="39" style="width:1.3333in;height:.4083in" id="Picture_x0020_1" src="cid:image001.png@01D802FA.4700E470" alt="MERLIN"><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:12.0pt;color:black;mso-fareast-language:EN-CA"><o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-CA">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-CA"> NANOG <nanog-bounces+athompson=merlin.mb.ca@nanog.org>
<b>On Behalf Of </b>Sandoiu Mihai<br>
<b>Sent:</b> Thursday, January 6, 2022 4:35 AM<br>
<b>To:</b> nanog@nanog.org<br>
<b>Subject:</b> BGP Route Monitoring<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">I
</span><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">am looking for a route monitoring product that does the following:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">-checks if a specific bgp route from a specific neighbor is present the BGP table (in some vrf, not necessarily internet routed vrf) of
an ASR9K running IOS XR <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">-sends a syslog message or an alarm if the route goes missing<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">The use case is the following: we are receiving same routes over 2 or more bgp peerings, due to best route we cannot really see at the moment
if one of the routes ceased to be received over a certain peering.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">Alternative approach: a product that measures the number of bgp received prefixes from a certain peer.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">Do you know of such product that is readily available and does not require ssh sessions to the routers and parsing the outputs?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">I am trying to find a solution that does not require much scripting or customization.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">Many thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-CH" style="font-size:10.0pt;font-family:"Segoe UI Semilight",sans-serif;color:black">Mihai<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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