ptpd (8)

Contents

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHORS

NAME

ptpd - Precision Time Protocol daemon (1588-2008)

SYNOPSIS

ptpd [?] [-B] [-c] [-C] [-S] [-f FILE] [-R FILE] [-d] [-D] [-P] [-x] [-O NUMBER] [-M NUMBER] [-t] [-T ttl] [-a NUMBER,NUMBER] [-w NUMBER] [-b NAME] [-u ADDRESS] [-I group] [-U] [-e] [-h] [-l NUMBER,NUMBER] [-o NUMBER] [-i NUMBER] [-n NUMBER] [-y NUMBER] [-m NUMBER] [-V NUMBER] [-g] [-v NUMBER] [-r NUMBER] [-N NUMBER] [-s NUMBER] [-p NUMBER] [-q NUMBER] [-G] [-W] [-Y NUMBER] [-L] [-j]

DESCRIPTION

Implements the Precision Time Protocol (PTP) Version 2 as defined by the IEEE 1588-2008 standard. PTP was developed to provide very precise time coordination of LAN connected computers.

PTPd is a complete implementation of the IEEE 1588 v2 specification for a standard (ordinary) clock. PTPd has been tested with and is known to work properly with other IEEE 1588 implementations. The source code for PTPd is freely available under a BSD-style license. Thanks to contributions from users, PTPd is becoming an increasingly portable, interoperable, and stable IEEE 1588 implementation.

For more information, see http://ptpd.sourceforge.net/

OPTIONS

-?
display a short help text
-B
enable debugging if it has been previously compiled in
-c
run in command line (non-daemon) mode
-C
run in command line mode and display statistics and logs
-S
do not log information to syslog
-f FILE
send output to FILE
-R FILE
record a quality FILE
-D
display stats in .csv format
-x
do not reset the clock if off by more than one second
-M NUMBER
do not accept delay values of more than NUMBER nanoseconds
-O NUMBER
do not reset the clock if offset is more than NUMBER nanoseconds
-P
display packets received for debugging purposes
-t
do not adjust the system clock
-T
set multicast TTL for packets. Defaults to 1.
-a NUMBER,NUMBER
specify clock servo P and I attenuations
-w NUMBER
specify one way delay filter stiffness
-b NAME
bind PTP to network interface NAME
-u ADDRESS
also send uni-cast to ADDRESS
-I
multicast group for PTP_EXPERIMENTAL mode
-U
enable hybrid mode which uses both unicast and multicast, requires PTP_EXPERIMENTAL
-e
run in ethernet mode (currently unimplemented)
-h
run in End to End mode
-l NUMBER,NUMBER
specify inbound, outbound latency in nsec
-o NUMBER
specify current UTC offset
-i NUMBER
specify PTP domain number
-n NUMBER
specify announce interval in 2^NUMBER sec
-y NUMBER
specify sync interval in 2^NUMBER sec
-m NUMBER
specify max number of foreign master records
-N NUMBER
announce receipt timeout
-V
limit displaying statistics by setting the seconds between log messages
-g
run as slave only
-v NUMBER
specify system clock allen variance
-r NUMBER
specify system clock accuracy
-s NUMBER
specify system clock class
-p NUMBER
specify priority1 attribute
-q NUMBER
specify priority2 attribute
-G
run as master with connection to NTP
-W
run as master without NTP
-Y NUMBER
set an initial delay request value
-L
enable running multiple ptpd daemons
-j
turn off IGMP refresh messages

AUTHORS

Gael Mace <gael_mace@users.sourceforge.net> & Alexandre Van Kempen.

Steven Kreuzer <skreuzer@freebsd.org>

George Neville-Neil <gnn@freebsd.org>

This manual page was written by Gael Mace for any Linux environment project.