Juniper ACX1000 Configuration Manual page 309

Requirements
Overview
Copyright © 2017, Juniper Networks, Inc.
In this example, unicast-negotiation is applicable only to clock-sources. For clock clients,
the statement
unicast-negotiation
Requirements on page 251
Overview on page 251
Configuration on page 252
This example uses the following hardware and software components:
NOTE: This example also applies to QFX Series switches. QFX Series switches
do not support Gigabit Ethernet interfaces. Instead, configure PTP boundary
clock parameters on 10-Gigabit Ethernet interfaces.
An ACX Series router
Junos OS Release 12.3 or later
A PTP slave clock or clock client can join a master clock with and without unicast
negotiation. With unicast negotiation, the announce, synchronization, and delay response
packet rates are negotiated between the master and the slave or client before a PTP
session is established. Without unicast negotiation and after it is configured, the slave
or client immediately receives announce and synchronization packets.
A clock client is the remote PTP host, which receives time from the PTP master. The
following clock clients are configured in this example:
Secure client—A secure client is configured with an exact IP address, after which, it
joins a master clock through unicast negotiation. In this example, the clock client
clock-client 117.117.117.117/32 local-ip-address 109.109.109.53
means that only this specific host from the subnet can join the master clock through
a unicast negotiation .
Automatic client—An automatic client is configured with an IP address, which includes
a subnet mask, indicating that any PTP host belonging to that subnet, can join the
master clock through a unicast negotiation. In this example, the clock client
109.109.109.0/24 local-ip-address 109.109.109.53
this automatic client is configured on the same master clock
interface—
109.109.109.53
Manual client—A manual client does not use unicast negotiation to join the master
clock. The manual statement overrides the
at the [
edit protocols ptp
starts receiving announce and synchronization packets. In this example, the clock client
clock-client 7.7.7.7 local-ip-address 7.7.7.53 manual
on a second master clock interface.
Chapter 9: Configuring Timing and Synchronization
at the [
edit protocols ptp
is an automatic client. Additionally,
—as the secure client.
unicast-negotiation
] hierarchy level. As soon as you configure a manual client, it
is the manual client and is configured
] hierarchy level is not effective.
is a secure client, which
clock-client
statement configured
251