Page 388 7450 ESS OS Basic System Configuration Guide
PTP Commands
ptp
Syntax ptp
Context config>system
Description This command enables the context to configure parameters for IEEE 1588-2008, Precision Time Protocol.
This command is only available on the control assemblies that support 1588.
shutdown
Syntax [no] shutdown
Context config>system>ptp
Description This command disables or enables the PTP protocol. If PTP is disabled, the router will not transmit any PTP
packets, and will ignore all received PTP packets. If the user attempts execute a no shutdown command on
hardware that does not support PTP, an alarm will be raised to indicate limited capabilities.
When PTP is shutdown, the PTP slave port is not operational. It shall not be considered as a source for
system timing.
Default shutdown
clock-type
Syntax clock-type ordinary {{master | slave} | boundary}
Context config>system>ptp
Description This command configures the type of clock. The clock-type can only be changed when PTP is shutdown.
The clock-type cannot be changed to master-only if PTP reference is no shutdown. In addition, clock-type
cannot be changed to master-only if there are peers configured.
Default ordinary slave
Parameters boundary — The system is a boundary clock, which may be anywhere in the master-slave clock hierarchy.
It can obtain timing from a master clock, and provide timing to multiple slave clocks concurrently.
ordinary master — The system is a grandmaster clock in the master-slave hierarchy. The system provides
timing to multiple slave clocks in the network.
ordinary slave — The system is always a slave clock in the master-slave hierarchy. The system derives its
timing from one or more master clocks in the network.
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