With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
voicePortOperDnsServerIndex
voice Port Operational Dns Server Index
1.3.6.1.4.1.9.5.1.26.3.1.3
server within a module/port. This value indicates the priority order among these DNS servers.
Back to CISCO-STACK-MIB MIB page.
IPHost Network monitor allows you to monitor voicePortOperDnsServerIndex 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.
