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.
-Adam
Adam Thompson
Consultant, Infrastructure Services
100 - 135 Innovation Drive
Winnipeg, MB, R3T 6A8
(204) 977-6824 or 1-800-430-6404 (MB only)
athompson@merlin.mb.ca
www.merlin.mb.ca
From: NANOG <nanog-bounces+athompson=merlin.mb.ca@nanog.org>
On Behalf Of Sandoiu Mihai
Sent: Thursday, January 6, 2022 4:35 AM
To: nanog@nanog.org
Subject: BGP Route Monitoring
Hi
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.
Many thanks.
Regards
Mihai