and phase recovery based on received and requested timestamps from a master clock—a
grandmaster or a boundary clock master.
NOTE: In ACX Series routers, the grandmaster functionality is supported only
on ACX500 router.
To configure a PTP slave clock, complete the following tasks:
•
Configuring the PTP Slave Clock Parameters on page 255
•
Configuring the PTP Slave Clock Interface on page 257
Configuring the PTP Slave Clock Parameters
To configure a PTP slave clock.
NOTE: The clock-class-to-quality-level-mapping quality-level,
convert-clock-class-to-quality-level, and grant-duration statements are not
supported on the QFX10002 switch.
1. Configure the clock mode:
[edit protocols ptp]
user@host# set clock-mode (boundary | ordinary)
2. Configure the slave clock.
[edit protocols ptp]
user@host# edit slave
3. (Optional) Specify the rate of announce messages that a PTP slave requests from
the master during a unicast-negotiation session—from 0 through 4. The default value
is 1.
[edit protocols ptp slave]
user@host# set announce-interval announce-interval-value
NOTE: The configuration of the announce-interval statement is effective
only when the unicast-negotiation statement is also configured at the [edit
protocols ptp] hierarchy level.
4. (Optional) Specify the number of announce messages that a slave—configured on
an ACX Series router—must miss before an announce timeout is declared—from 2
through 10. The default value is 3.
[edit protocols ptp slave]
user@host# set announce-timeout announce-timeout-value
255Copyright © 2017, Juniper Networks, Inc.
Chapter 9: Configuring Timing and Synchronization
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