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7. (Optional) Configure the priority value of the clock (0 through 255). This value is used

in selecting the best master clock. The priority1-value is advertised in the master clock’s

announce message to clock clients. The default value is 128.

[edit protocols ptp]

user@host# set priority1 priority1-value

8. (Optional) Configure the tie-breaker in selecting the best master clock (0 through

255). The priority2 value differentiates and prioritizes the master clock to avoid

confusion when the priority1-value is the same for different master clocks in a network.

The default value is 128.

[edit protocols ptp]

user@host# set priority2 priority2-value

9. Specify the PTP slave clock parameters.

[edit protocols ptp]

user@host# set slave

For information about configuring the slave clock options, see “Configuring a PTP

Slave Clock” on page 254.

10. (Optional) Enable unicast negotiation. Unicast negotiation is a method by which the

announce, synchronization, and delay response packet rates are negotiated between

the master clock and the clock client before a PTP session is established.

[edit protocols ptp]

user@host# set unicast-negotiation

NOTE: Unicast negotiation, when enabled, does not allow you to commit

packet rate–related configurations.

Documentation

IEEE 1588v2 PTP Boundary Clock Overview on page 234•

• Configuring a PTP Master Boundary Clock on page 244

• Configuring a PTP Slave Clock on page 254

• Example: Configuring a PTP Boundary Clock With Unicast Negotiation on page 250

• Example: Configuring a PTP Boundary Clock on page 248

Configuring a PTP Master Boundary Clock

A Precision Time Protocol (PTP) master boundary clock sends PTP messages to the

clients (ordinary and boundary) so that they can establish their relative time offset from

this master’s clock or clock reference. You cannot configure an ordinary master clock on

a device. The master boundary clock synchronizes time through a boundary slave port.

To configure a master boundary clock, you must include the boundary statement at the

ACX Series Universal Access Router Configuration Guide

Juniper ACX2000 Configuration Guide

Other manuals for Juniper ACX2000