Microsemi SyncServer S300 - PTP Option and Time Interval Test

PTP Option and Time Interval Test
n Given a pool of NTP associations from which to choose, an NTP client typically syn-
chronizes with the best one, and does not require Override Behavior to eliminate poor
associations.
n Given a lack of NTP associations from which to choose, an NTP client may reject a Syn-
cServer with better timing accuracy and stability than itself, if Override Behavior is
enabled.
n The SyncServer's NTP daemon can get time from a server, peer, broadcastclient, and
multicastclient associations.
n Also see NTP Daemon Status (on page 28), TIMING - HW Clock (on page 61),
TIMING - Holdover (on page 63), Leap Indicator (on page 197), and Stratum (on
page 202).
RESTART Button
After changing the NTP configuration, click the RESTART button to put the new configuration
into effect. While the NTP daemon restarts, its services are temporarily unavailable, and it
generates the following alarm events: NTP Stratum Change, NTP System Peer Change,
NTP Leap Change.
PTP Option and Time Interval Test
The precision time protocol (PTP) option allows the user to configure the S300 Series Syn-
cServer into a IEEE 1588-2008 Grandmaster. This hardware based PTP option is only sup-
ported on LAN2 of the S300 and S350 SyncServers. The Time Interval Measurement is
included as part of the PTP option on the S350 only.
When the PTPoption is not activated on a S300/S350 SyncServer, the PTP button (fourth
from top) of the web interface will be grayed out. If PTP was not factory installed, See "How
to Activate the PTP Option" on page 53.
Once the PTPoption is activated on a S300/S350 SyncServer, the PTP button on the web
interface will become active. In addition to the PTP option button, upon activation, several
other web pages will become available. Four pages associated with the PTPbutton will
enable you to:
n Set up PTP configuration parameters See "PTP - Master" on page 54
n Save and restore PTP configuration parameters See "PTP - Save-Restore" on
page 60
n Monitor slave activity See "PTP - Slaves" on page 58
n Collect measurement data and view PTPperformance over the network by run-
ning charts. See "PTP - Performance" on page 59
In addition to the pages associated with the PTP button, the following pages will allow further
monitoring and control of the PTPoption:
n The status of the PTPDaemon can be monitored at STATUS> PTP See
"STATUS - PTP" on page 31
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