With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cPtpClockDefaultDSTable
Cisco Ptp Clock Default DS Table
1.3.6.1.4.1.9.9.760.1.2.3
Table of information about the PTP clock Default Datasets for all domains.
Back to CISCO-PTP-MIB MIB page.
IPHost Network monitor allows you to monitor cPtpClockDefaultDSTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.