• Stratum – This field shows the stratum level being reported by the peer time server
• RootD – This is the root delay value of the peer time server. This is the time servers reported
delay from its location to the root of the NTP time setup. A stratum 1 server is considered to be
at the root of an NTP setup/design.
• Reach – This is a bit field that shows the result of the last 8 lookup attempts of the peer time
server. A value of 0xff signifies that the last 8 attempts have been answered by the time server.
A successful lookup causes a 1 to be shifted in to the LSB of the byte and all other bits to be
shifted 1 bit to the left. A non 0xff value signifies that either the server has just started or that
some lookup requests are not getting answered.
• Next Time – This is the time that the next request for time from the peer time server will occur.
The NTP client of the TM2X00 will start out with a check every 30 seconds or so and then
expand out if time is tracking well to a couple of minutes. The TM2X00 doesn't allow the time
sync to extend beyond a few minutes to maintain accurate internal time.
3.4.16 PTP Clients
This area is used to show the current PTP clients that have successfully logged into the device for
unicast PTP. This will display entries only if the TM2X00 is in Unicast PTP mode. In multicast mode,
the TM2X00 does keep track of all clients getting time from it. The client's IP address, MAC address,
lease time, and update rates (1/2^value) for Announce and Sync packets is displayed. The zero values
for Announce and Sync Intervals show a 1 packet per second rate.
Installation and Operations Manual | Page 9
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