Comtech EF Data CDM-625 - Manual (Page 249)

CDM-625 Advanced Satellite Modem Revision 15
Ethernet-based Remote Product Management MN-CDM625
6–57
availability of the PTP protocol is dependent on the near-end (e.g., the RNC/BSC) and
distant-end (e.g., the BTS) IEEE 1588v2 (PTP) capable network devices in the network.
• Grandmaster – Use the drop-down list to assign to which side (either the LAN port or the
WAN port) the PTP Grandmaster is connected. Note the following:
Selection Function
LAN The LAN port receives messages from the PTP master.
WAN The WAN port receives messages from the PTP master.
Click [Submit] to save these settings.
Status
Click [Refresh] to update this section with its most recently accumulated statistics.
These status parameters are read-only and cannot be changed. Note the following:
Row Title Description
Top
PTP Engine Specifies whether or not PTP is actively attempting to synchronize time.
PTP Time
Displays the time that has been synchronized with the master device and is being
propagated to the slave devices.
Bottom
PTP Port
Displays whether or not the Ethernet link is detected. The PTP Port is always
Ethernet Port 2 on the modem.
RTV Time
Displays the presumed time for the modem. While the PTP time depends on the
Grandmaster device, the RTC Time changes only when set by the user.