ptpbaseClockPortRunningTxMode — 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 clock transmission mode as: unicast: Using unicast communication channel multicast: Using multicast communication channel multicast-mix: Using multicast-unicast communication channel