{"id":1201,"date":"2013-11-29T04:59:43","date_gmt":"2013-11-29T10:59:43","guid":{"rendered":"http:\/\/blog.supportpro.com\/?p=1201"},"modified":"2026-01-09T00:22:07","modified_gmt":"2026-01-09T06:22:07","slug":"precision-time-protocol-rhel-6-5","status":"publish","type":"post","link":"https:\/\/www.supportpro.com\/blog\/precision-time-protocol-rhel-6-5\/","title":{"rendered":"How Red Hat Enterprise Linux Supports Precision Time Protocol (PTP)"},"content":{"rendered":"\n
\"Reda<\/a><\/figure>\n\n\n

The Precision Time Protocol (PTP)<\/strong> is a network protocol used to synchronize clocks across devices in a computer network. It is designed to deliver very high accuracy, especially in environments where precise timing is critical.<\/p>\n

PTP typically operates over Ethernet networks and achieves its best accuracy on well-engineered local area networks (LANs) that support hardware timestamping. On such networks, PTP can synchronize clocks with sub-microsecond accuracy<\/strong>. The PTP timescale is expressed in seconds and nanoseconds<\/strong>, allowing extremely fine-grained time measurement.<\/p>\n

IEEE 1588 and PTP Usage<\/h2>\n

PTP is defined by the IEEE 1588<\/strong> standard. It is widely used in systems that require precise timing, such as:<\/p>\n