Juniper ACX2000 Configuration Guide

Clock Clients
A clock client is the remote PTP host, which receives time from the PTP master and is in
a slave relationship to the master.
NOTE: The term slave is sometimes used to refer to the clock client.
An device acting as a master boundary clock supports the following types of downstream
clients:
•
Automatic client—An automatic client is configured with an IP address, which includes
the subnet mask, indicating that any remote PTP host belonging to that subnet can
join the master clock through a unicast negotiation. To configure an automatic client,
include the subnet mask in the clock-client ip-address statement at the [edit protocols
ptp master interface interface-name unicast-mode] hierarchy level.
•
Manual client—A manual client is configured with the manual statement at the [edit
protocols ptp master interface interface-name unicast-mode clock-client ip-address
local-ip-address local-ip-address] hierarchy level. A manual client does not use unicast
negotiation to join the master clock. The manual statement overrides the unicast
negotiation statement configured at the [edit protocols ptp] hierarchy level. As soon
as you configure a manual client, it starts receiving announce and synchronization
packets.
•
Secure client—A secure client is configured with an exact IP address of the remote PTP
host, after which it joins a master clock through unicast negotiation. To configure a
secure client, include the exact IP address in the clock-client ip-address statement at
the [edit protocols ptp master interface interface-name unicast-mode] hierarchy level.
NOTE: You can configure the maximum number of clients (512 ) in the
following combination:
•
Automatic clients 256.
•
Manual and secure clients 256—Any combination of manual and secure
clients is allowed as long as the combined total amounts to 256.
Release History Table DescriptionRelease
Starting with Junos OS Release 17.3R1, IEEE 1588v2 boundary clock is
supported on QFX10002 switches.
17.3R1
Related
Documentation
IEEE 1588v2 Precision Timing Protocol (PTP) on ACX Series Universal Access Routers
on page 237
•
• Precision Time Protocol Overview
Copyright © 2017, Juniper Networks, Inc.236
ACX Series Universal Access Router Configuration Guide

Juniper ACX2000 Specifications

General

Brand	Juniper
Model	ACX2000
Category	Network Router
Language	English