Edge-Core ECS4660-28F Management Manual page 965

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This command sets a preference level used in selecting the master clock.

ptp priority1

Use the no form to restore the default setting.

ptp priority1 priority-value

no ptp priority1

priority-value – Slave devices use the priority1 value when selecting

a master clock. (Range: 0-255)

Global Configuration

Specify the priority1 preference level to override the default criteria for

best master clock selection. Lower values take precedence.

The best master clock algorithm (BMC), performs a distributed

selection of the best candidate clock based on the following clock

Priority – An administratively assigned precedence hint used by the

BMC to help select a grandmaster for the PTP domain.

Class – An attribute defining the clock's International Atomic Time

(TAI) traceability.

Accuracy – An attribute defining the accuracy of the clock.

Variance – A clock's estimate of its stability based on observation of

its performance against the PTP reference.

Quality – Clock quality based on expected timing deviation,

technology used to implement the clock or location in a stratum

Identifier – A universally unique numeric identifier for the clock.

This is typically constructed based on a device's MAC address.

PTP uses a hierarchical selection algorithm based on the following

properties in the order indicated.

Unique identifier (tie breaker)

| System Management Commands

Precision Time Protocol

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