With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cPtpClockRunningPacketsReceived
Cisco Ptp Clock Running Packets Received
1.3.6.1.4.1.9.9.760.1.2.4.1.6
This object specifies the total number of all packet Unicast and multicast that have been received for this clock in this domain for this type.
Back to CISCO-PTP-MIB MIB page.
IPHost Network monitor allows you to monitor cPtpClockRunningPacketsReceived 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.