With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cddGeneralQueryRate
Cisco Distributed Director General Query Rate
1.3.6.1.4.1.9.9.197.1.1.14
The received DNS/HTTP queries/requests rate in the last one second period.
Back to CISCO-DIST-DIRECTOR-MIB MIB page.
IPHost Network monitor allows you to monitor cddGeneralQueryRate 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.