Setting IEEE 1588-2008 Precision Time Protocol (PTP) Parameters

The IEEE 1588-2008 Precision Time Protocol (PTP) section on the Config page identifies the parameters that can be set for the TCA6000 or TCA6500 Timing Client to provide synchronization using the Precision Time Protocol. To configure the Timing Client to provide PTP time synchronization:

Click the Config tab. The Config page appears.
Locate the PTP tab across the top of the Config page. See Figure 7.
Figure 7: Timing Client Config Page—PTP Pane

The PTP pane on the configuration page allows the setting of parameters which are part of a distributed synchronous network using Precision Time Protocol (PTP).

To configure the Timing Client to provide PTP time synchronization, configure the fields in the PTP pane:

The Domain Number field specifies the domain number which the TCA6000 or TCA6500 Timing Client has been assigned to. Enter a value within the range 0 - 255 to set the domain number associated with the network broadcast domain the unit will join. This number needs to be same domain number of at least one TCA6000 or TCA6500 Timing Server that is reachable through the network.

In the Delay Req Mode field, two options are available.

Note: The associated TCA6000 or TCA6500 Timing Server needs to be configured to the same profile selected.

Unicast (Default)

—

A one-to-one connection between a server and a client. This uses unicast messaging in both downstream and upstream direction with respect to the Timing Server.

Multicast

—

A one-to-many relationship between a server and a client. This uses multicast messaging for the downstream and unicast for the upstream direction with respect to the Timing Server. This is referred to a Juniper Type 1 profile in the Timing Server configuration.

From the Log Mean Delay Request Interval list, select a delay request interval rate from the options: 32 packets/sec and 64 packets/sec.
Note: It is recommended to select 64 packets/sec.
From the Announce Receipt Timeout list, select a timeout period for the announce event messages.
In the DSCP field, enter the Differential Service (DiffServ) value for the IP packet.
Click the Apply button to save the PTP parameter changes.

To configure the unicast related parameters:

From the Delay Req Mode list, select unicast.
From the Sync list, select a sync message rate from the options: 32 packet/sec and 64 packet/sec.
Note: It is recommended to select 64 packet/sec.
From the Delay list, select a delay response message rate from the options: 32 packet/sec and 64 packet/sec.
Note: It is recommended to select 64 packet/sec.
From the Announce list, select an announce message rate from the options: 1 packet/1 sec, 1 packet/2 sec, 1packet/4 sec, and 1packet/8 sec.
In the Duration field, enter the Timing Client expiration duration for sending signaling messages without receiving acknowledgements from the Grandmaster.
In the Signaling field, select an option button to enable or disable the sending of signaling messages to the Grandmaster.
Click the Apply button to save the unicast configuration.

To add the acceptable Grandmasters for the Timing Client:

In the IP Address field, enter the IP address of the acceptable Grandmaster for the Timing Client.
Click the Add button to add the acceptable Grandmaster entry in the Acceptable Master List window.

To delete the acceptable Grandmaster entry:

Select the Grandmaster entry that you want to delete from the Acceptable Master List window.
Click the Delete button to delete the entry.