ptpbaseClockPortNumOfAssociatedPorts — Multiple manufacturers; see the original MIB MIB copies (LibreNMS/Observium Community), LANCOM official release MIBs, Netdisco MIB archive copies, NETGEAR official product and EOL MIB downloads, RFC Editor
This object specifies the following: For a master port - the number of PTP slave sessions (peers) associated with this PTP port. For a slave port - the number of masters available to this slave port (might or might not be peered).