With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
vtpVlanIsCRFBackup
vtp Vlan Is CRF Backup
1.3.6.1.4.1.9.9.46.1.3.1.1.16
True if this VLAN is of type trCrf and also is acting as a backup trCrf for the ISL distributed BRF
Back to CISCO-VTP-MIB MIB page.
IPHost Network monitor allows you to monitor vtpVlanIsCRFBackup on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.
