Ptp Docs
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Usage: ptpv2d [OPTION] Ptpv2d runs on UDP/IP , E2E mode by default -H show detailed help page Mode selection (one option is always required): -g run as slave only -G run as a Master _with_ NTP (implies -t -L) -W run as a Master _without_ NTP (reverts to client when inactive) -b NAME bind PTP to network interface NAME Options: -c run in command line (non-daemon) mode (implies -D) -C verbose non-daemon mode: implies -c -S -D -V 0, disables -f -f FILE send output to FILE (implies -D) -S DON'T send messages to syslog -T NUMBER set multicast time to live -d display stats (per received packet, see also -V) -D display stats in .csv format (per received packet, see also -V) -P display each received packet in detail -R FILE record data about sync packets in a seperate file -x do not reset the clock if off by more than one second -O NUMBER do not reset the clock if offset is more than NUMBER nanoseconds -t do not make any changes to the system clock -M NUMBER do not accept delay values of more than NUMBER nanoseconds -a 10,1000 specify clock servo Proportional and Integral attenuations -w NUMBER specify one way delay filter stiffness -u ADDRESS Unicast mode: send all messages in unicast to ADDRESS -U Hybrid mode: send DELAY messages in unicast This causes all delayReq messages to be sent in unicast to the IP address of the Master (taken from the last announce received). For masters, it replyes the delayResp to the IP address of the client (from the corresponding delayReq message). All other messages are send in multicast -e run in ethernet mode (level2) -h run in End to End mode -z run in Peer-delay mode -l NUMBER,NUMBER specify inbound, outbound latency in nsec. (Use this to compensate the time it takes to send and recv messages via sockets) -o NUMBER specify current UTC offset -i NUMBER specify PTP domain number (between 0-3) -I NUMBER specify Mcast group (between 0-3, emulates PTPv1 group selection) -n NUMBER specify announce interval in 2^NUMBER sec -N NUMBER specify announce receipt TO (number of lost announces to timeout) -y NUMBER specify sync interval in 2^NUMBER sec -m NUMBER specify max number of foreign master records -v NUMBER Master mode: specify system clock Allen variance -r NUMBER Master mode: specify system clock accuracy -s NUMBER Master mode: specify system clock class -p NUMBER Master mode: specify priority1 attribute -q NUMBER Master mode: specify priority2 attribute -Y 0[,0] Initial and Master_Overide delayreq intervals desc: the first 2^ number is the rate the slave sends delayReq When the first answer is received, the master value is used (unless the second number was also given) -B Enable debug messages (if compiled-in). Multiple invocations to more debug Compatibility Options (to restore previous default behaviour): -j Do not refresh the IGMP Multicast menbership at each protol reset -L Allow multiple instances (ignore lock and other daemons) -V 0 Seconds between log messages (0: all messages) Possible internal states: init: INITIALIZING flt: FAULTY lstn_init: LISTENING (first time) lstn_reset: LISTENING (non first time) pass: INACTIVE Master uncl: UNCALIBRATED slv: SLAVE pmst: PRE Master mst: ACTIVE Master dsbl: DISABLED ?: UNKNOWN state Signals synchronous behaviour: SIGHUP Re-open statistics log (specified with -f) SIGUSR1 Manually step clock to current OFM value (overides -x, but honors -t) SIGUSR2 swap domain between current and current + 1 (useful for testing) SIGUSR2 cycle run-time debug level (requires RUNTIME_DEBUG) SIGINT|TERM close file, remove lock file, and clean exit SIGKILL|STOP force an unclean exit BMC Algorithm defaults: Software: P1(128) > Class(13|248) > Accuracy("unk"/0xFE) > Variance(61536) > P2(128)