With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cDnsMaxCntrIntHaRRActiveListCnts
Cisco Dns Max Сounter Interval Ha RR Active List counts
1.3.6.1.4.1.9.9.405.1.11.7
Maximum number of RRs in the active list waiting to be sent to the backup server during reporting interval.
Back to CISCO-DNS-SERVER-MIB MIB page.
IPHost Network monitor allows you to monitor cDnsMaxCntrIntHaRRActiveListCnts on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.