With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwnDistributionMethod
cwn Distribution Method
1.3.6.1.4.1.9.9.223.1.1.1
The method used to distribute network clock for the device. When the mode of operation is 'ncdp', this device participates in NCDP protocol. A single 'master' clock source will be identified as the clock source for this network as a result. The tables 'cwnAtmSourceTable' and 'cwnAtmInterfaceTable' are used in this mode. When the mode of operation is 'manual', the network clock source is statically configured in this device. The table 'cwnManualSourceTable' is used in this mode.
Back to CISCO-WAN-NCDP-MIB MIB page.
IPHost Network monitor allows you to monitor cwnDistributionMethod on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.