BGP Peer table is incorrect on some Cisco ISR devices in Spectrum
Article ID: 245893
Updated On:
Products
Issue/Introduction
To force a Peer down I have to ask to network manager responsible to administer mentioned device
For the CISCO ISR devices that show the correct BGP values, they use the application model "BGP4_App".
For those that don't, they use the "Cisco BGP4_App".
After performing Reconfigure Model command, the working models can switch to the "CiscoBGP4_App" and starts to display wrong value for "Remote Value".
Environment
Release : 21.2
Component : Spectrum Discovery
Cause
Cisco started supporting the CISCO-BGP4-MIB mib in favor of the standard BGP4-Mib to add IPv6 BGP peer session monitoring.
Spectrum was updated in 10.4.3 so that if the device supports the CISCO-BGP4-MIB (and responds to attribute cbgpPeer2LocalIdentifier with oid 1.3.6.1.4.1.9.9.187.1.2.5.1.9) then a CiscoBGP4_App model will be created.
If the device does still support the old BGP4-Mib (and responds to attribute bgpLocalAs with oid 1.3.6.1.2.1.15.2.0) Spectrum will not create the original BGP4_App model. It will only create the CiscoBGP4_App model.
Resolution
If the information is incorrect in the CiscoBGP4 app, and the devices responds to both oids below, we can force Spectrum to prioritize the standard BGP4-Mib.
1.3.6.1.4.1.9.9.187.1.2.5.1.9 CiscoBGP4 mib
1.3.6.1.2.1.15.2 standard BGP4-Mib
To create BGP4_APP (standard BGP MIB) instead of CISCOBGP4_app (proprietary MIB).
1. From ModelTypeEditor (MTE);
change the Model_Precedence (0x00230010) attribute of CISCOBGP4_APP to 5 and save the catalog.
The higher the number for the precendence value will have precendence. BGP_4APP model precedence is 10.
2. Start SpectroServer
3. Delete all CISCOBGP4_app models and rediscover SNMP MIB.
4. Now, you should see the BGP Peer Table with the expected remote addresses.
Additional Information
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