BGP Route Monitoring
athompson at merlin.mb.ca
Thu Jan 6 18:41:10 UTC 2022
Most monitoring products allow you to monitor custom SNMP OIDs, and your entire BGP RIB is – usually – exposed via SNMP.
Most monitoring products also treat “missing” OIDs specially, and can alert on that fact.
At least, that’s how I would start doing it.
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.
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.
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athompson at merlin.mb.ca<mailto:athompson at merlin.mb.ca>
From: NANOG <nanog-bounces+athompson=merlin.mb.ca at nanog.org> On Behalf Of Sandoiu Mihai
Sent: Thursday, January 6, 2022 4:35 AM
To: nanog at nanog.org
Subject: BGP Route Monitoring
I am looking for a route monitoring product that does the following:
-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
-sends a syslog message or an alarm if the route goes missing
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.
Alternative approach: a product that measures the number of bgp received prefixes from a certain peer.
Do you know of such product that is readily available and does not require ssh sessions to the routers and parsing the outputs?
I am trying to find a solution that does not require much scripting or customization.
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