start receiving the multicast announce messages transmitted by the master ports on a
network and can also start communication with the master port with minimal or no
configuration. You can optionally configure these settings for a slave port that
communicates with the master ports using PTP over Ethernet.
To configure a PTP over Ethernet slave clock.
1. Configure the clock mode:
[edit protocols ptp]
user@host# set clock-mode boundary
2. Configure the slave clock.
[edit protocols ptp]
user@host# edit slave
3. (Optional) Specify the number of announce messages that a slave clock or
port—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
4. (Optional) Specify the logarithmic mean interval in seconds between the delay request
messages sent by the slave port to the master port—from –6 through 3. The default
value is 0.
[edit protocols ptp slave]
user@host# set delay-request delay-request-value
5. Configure the interface for the slave clock.
[edit protocols ptp slave]
user@host# edit interface interface-name
6. (Optional) Configure the log mean interval between synchronization messages—from
–6 through -3. The default value is –6, which means by default, 64 synchronous
interval messages sent per second.
[edit protocols ptp slave]
user@host# set sync-interval sync-interval-value
After you have configured the PTP slave clock parameters, enter the commit command
in configuration mode. To complete the configuration of the slave clock, complete
“Configuring the PTP over Ethernet Slave Clock Interface” on page 279
Copyright © 2017, Juniper Networks, Inc.278
ACX Series Universal Access Router Configuration Guide
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