{"id":13729,"date":"2025-10-28T15:57:23","date_gmt":"2025-10-28T07:57:23","guid":{"rendered":"https:\/\/bdtime.cn\/?p=13729"},"modified":"2026-04-24T10:32:36","modified_gmt":"2026-04-24T02:32:36","slug":"ptp-log-explanation","status":"publish","type":"post","link":"https:\/\/bdpnt.com\/en\/ptp-log-explanation\/","title":{"rendered":"PTP Log Interpretation"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"13729\" class=\"elementor elementor-13729\" data-elementor-post-type=\"post\">\n\t\t\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-3bcb7f7 e-flex e-con-boxed e-con e-parent\" data-id=\"3bcb7f7\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5da2529 elementor-widget elementor-widget-woocommerce-breadcrumb\" data-id=\"5da2529\" data-element_type=\"widget\" data-widget_type=\"woocommerce-breadcrumb.default\">\n\t\t\t\t\t<nav class=\"woocommerce-breadcrumb\" aria-label=\"Breadcrumb\" data-no-translation=\"\" data-trp-gettext=\"\">Home<\/nav>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-ebc9f9d e-con-full e-flex e-con e-parent\" data-id=\"ebc9f9d\" data-element_type=\"container\">\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-bb384cd e-flex e-con-boxed e-con e-child\" data-id=\"bb384cd\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-414ece2 elementor-widget elementor-widget-theme-post-title elementor-page-title elementor-widget-heading\" data-id=\"414ece2\" data-element_type=\"widget\" data-widget_type=\"theme-post-title.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">PTP Log Interpretation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6fa4f72 elementor-widget elementor-widget-spacer\" data-id=\"6fa4f72\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-084fcc1 e-flex e-con-boxed e-con e-parent\" data-id=\"084fcc1\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1aefe63 elementor-widget elementor-widget-spacer\" data-id=\"1aefe63\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d7faed8 elementor-widget elementor-widget-heading\" data-id=\"d7faed8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">PTP Log Interpretation<\/h3>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-dc68cce e-flex e-con-boxed e-con e-parent\" data-id=\"dc68cce\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1b1f33e elementor-widget elementor-widget-heading\" data-id=\"1b1f33e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">rms 16 max 33 freq -993 +\/- 21 delay 510 +\/- 0<\/h4>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-444f885 e-flex e-con-boxed e-con e-parent\" data-id=\"444f885\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0f5ab23 elementor-widget elementor-widget-spacer\" data-id=\"0f5ab23\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-b1f29d0 e-flex e-con-boxed e-con e-parent\" data-id=\"b1f29d0\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-7e53cdb e-con-full e-flex e-con e-child\" data-id=\"7e53cdb\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-17a7cbc elementor-widget elementor-widget-text-editor\" data-id=\"17a7cbc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>1. rms 16<\/b><\/strong><\/p><p>Indicates the \"average synchronization error\" in nanoseconds (ns).<\/p><p>This value reflects the overall level of stability of the time offset between the device and the master clock. rms 16 means that the average deviation is only 16ns, which is already very small and falls within the range of high-precision synchronization. The smaller the value, the more accurate the synchronization.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-1b2ba22 e-con-full e-flex e-con e-child\" data-id=\"1b2ba22\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-95a83b9 elementor-widget elementor-widget-text-editor\" data-id=\"95a83b9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>2,<\/b><\/strong><strong><b>max 33<\/b><\/strong><\/p><p>Indicates \"maximum instantaneous deviation\", again in nanoseconds.<\/p><p>Over the entire statistical period, the maximum error is 33ns, which reflects the deviation of the \"worst moment\". max and rms values are not very different, indicating that the overall stability is very good and there is no drastic jitter.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-3082ed9 e-con-full e-flex e-con e-child\" data-id=\"3082ed9\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e0b3743 elementor-widget elementor-widget-text-editor\" data-id=\"e0b3743\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>3. freq -993 +\/- 21<\/b><\/strong><\/p><p>This indicates how well the PTP protocol corrects the local crystal frequency in parts per billion (PPB).<\/p><p>-993 Indicates that the device's local clock is slightly faster and the PTP is \"slowing down\" the calibration. This offset value is stable, indicating that the servo has a good grasp of the crystal characteristics.<\/p><p>+\/- 21 indicates the range of fluctuation of the correction value, i.e., the frequency jitter is very small and the servo state is smooth and healthy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-22160e4 e-con-full e-flex e-con e-child\" data-id=\"22160e4\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ca2f97e elementor-widget elementor-widget-text-editor\" data-id=\"ca2f97e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>4. delay 510 +\/- 0<\/b><\/strong><\/p><p>delay is the one-way network delay in nanoseconds transmitted from the master clock to the device.<\/p><p>510 indicates that the average latency is about 0.51 microseconds, which is very fast and indicates excellent network conditions.<\/p><p>+\/- 0 Indicates that the network latency did not fluctuate during this time and the data was very consistent. In this case, PTP synchronization works best.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-60b55bd e-con-full e-flex e-con e-child\" data-id=\"60b55bd\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-90c89a0 elementor-widget elementor-widget-text-editor\" data-id=\"90c89a0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><b>5. On the meaning of +\/-<\/b><\/strong><\/p><p>The +\/- value after each parameter represents the range of fluctuations (i.e., the \"standard deviation\"), reflecting the stability of the system.<\/p><ul><li>the smaller the better<\/li><li>A value of 0 is ideal, indicating that there is no jitter or fluctuation, which means that the network path and device state are very stable.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div data-particle_enable=\"false\" data-particle-mobile-disabled=\"false\" class=\"elementor-element elementor-element-f2c1146 e-flex e-con-boxed e-con e-parent\" data-id=\"f2c1146\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-65bab03 elementor-hidden-desktop elementor-hidden-tablet elementor-widget elementor-widget-spacer\" data-id=\"65bab03\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d4f716 elementor-widget elementor-widget-image\" data-id=\"1d4f716\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"927\" height=\"404\" src=\"https:\/\/bdpnt.com\/wp-content\/uploads\/2025\/10\/wechat_2025-10-28_162218_195.png\" class=\"attachment-large size-large wp-image-13738\" alt=\"\" srcset=\"https:\/\/bdpnt.com\/wp-content\/uploads\/2025\/10\/wechat_2025-10-28_162218_195.png 927w, https:\/\/bdpnt.com\/wp-content\/uploads\/2025\/10\/wechat_2025-10-28_162218_195-300x131.png 300w, https:\/\/bdpnt.com\/wp-content\/uploads\/2025\/10\/wechat_2025-10-28_162218_195-768x335.png 768w, https:\/\/bdpnt.com\/wp-content\/uploads\/2025\/10\/wechat_2025-10-28_162218_195-18x8.png 18w, https:\/\/bdpnt.com\/wp-content\/uploads\/2025\/10\/wechat_2025-10-28_162218_195-600x261.png 600w\" sizes=\"(max-width: 927px) 100vw, 927px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c6c066a elementor-hidden-desktop elementor-hidden-tablet elementor-widget elementor-widget-spacer\" data-id=\"c6c066a\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p> rms 16<br \/>\nIndicates the \"average synchronization error\" in nanoseconds (ns).<br \/>\nThis value reflects the overall level of stability of the time offset between the device and the master clock. rms 16 means that the average deviation is only 16ns, which is already very small and falls within the range of high-precision synchronization. The smaller the value, the more accurate the synchronization.<\/p>","protected":false},"author":1,"featured_media":13730,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[274],"tags":[],"class_list":["post-13729","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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