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TimeProvider 500 2.0 User’s Guide
098-00172-000 Revision A – December, 2009
Chapter 3 Operations
PTP Management
PTP Management
In addition to providing synchronization with a grandmaster clock, the TimeProvider
500 also supports the management facilities of PTP. This allows PTP node
managers selected control over the TimeProvider 500, the ability to obtain status
information, and to receive alarms. Node managers can collect and analyze the
status data and potentially send out notifications to a management system based on
this data. Node managers can either be a specific device or can be combined with a
grandmaster, such as the TimeProvider 5000. Node managers can continue to
manage the TimeProvider 500 via PTP management messages even if the
synchronization flow has been disabled via set the
ptp addr-mode disable
command. See
for further information.
PTP management messages can be used to set the acceptable master table,
reboot the unit, or to upgrade the firmware. They can also be used to read the
acceptable master table, get status information, respond to the null-mgmt message,
and get the clock description.
The following list describes similarities between PTP management messages and
CLI commands:
Setting acceptable master via PTP management is similar to using CLI command
. Only 1 or 2 acceptable masters can be configured. These map
to GM1 and GM2. The alternate priority field is not used.
Rebooting the TP500 via PTP management performs an action identical to CLI
command
Upgrading the TP500 firmware via PTP management performs an action
identical to CLI command
. An autonomous PTP message (see below) is
available to provide indication to a node-manager that an upgrade is in process.
The information provided by the get status PTP management command is
identical to what is provided by CLI command
Obtaining clock description via PTP management is similar to using CLI
commands
. Additionally, user description text is
conveyed in this message, settable using CLI command
The TimeProvider 500 can be configured to autonomously send PTP management
messages to the node managers when an alarm is generated or cleared. The
commands in the set alarm-config category apply to both local alarm indication
(alarm LED and event log) and autonomous PTP alarm generation. A new
command,
, provides additional control regarding whether or
not a specific alarm will generate an autonomous PTP management message.
The user can control which devices have access to the PTP management
capabilities of the TimeProvider 500. The TimeProvider can be configured to allow
the GrandMasters GM1 or GM2, or a specific node manager to be enabled for
management. See
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