INTRODUCTION

• Objectives of the standard
• The need for synchronization
• Definitions

PTP CLOCK SYNCHRONIZATION MODEL

• The PTP messages
• PTP systems, acyclic graph structure
• Message filtering
• Clock properties, stratum, identifier
• Subdomain properties

PTP PROTOCOL SPECIFICATION

• Model of a subdomain of PTP clocks
• State behavior of clocks
• Protocol engine state machine
• Clock data sets, initialisation properties
• Messaging and internal event behavior of clocks
• Sync-event time-out mechanism
• Synchronization changes of the local clock
• Best Master Clock algorithm
• Clock variance computation
• Local clock synchronization
• Physical requirements for PTP implementations
• Management messages

ETHERNET IMPLEMENTATION OF PTP

• Ethernet frame type
• IP header and multicast addresses
• UDP header, assigned port numbers
• UDP payload, organization of PTP messages

FREESCALE IMPLEMENTATION OF PTP

• eTSEC Ethernet MAC
• Time-stamping
• Clock correction
• Trigger inputs
• Alarms

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