Use ptp on GigaVUE-TA200 Devices

Use the ptp command to configure the PTP domain, clock mode, and priority on the GigaVUE-TA200 devices. Based on these PTP parameters, the primary source root timing; transmits sync info to clocks in its network segment (formerly grandmaster) will be selected from the clocks in a network.

Refer to the “Timestamps” chapter in the GigaVUE Fabric Management Guide for more information about how to use PTP to timestamp packets.

Use the following syntax to configure PTP globally for a device:

ptp
  alias <string>
  domain <value>// Range is 24–43
 mode <ordinary | boundary>
  local-priority <value> // Range is 1—255
  priority2 <value> // Range is 0—255

Use the following syntax to configure PTP globally for a cluster:

ptp
  box-id <box-id/all> alias <string>
  domain <value>// Range is 24–43
 mode <ordinary | boundary>
  local-priority <value> // Range is 1—255
  priority2 <value> // Range is 0—255

The following table describes the arguments for the ptp command:

Argument

Description

alias <string>

Specifies the name of the PTP for a device.

For example:

(config) # ptp alias <string>

box-id <box-id/all> alias <string>

Specifies the name of the PTP for all devices in a cluster. Ensure that you provide a unique name for each device in the cluster.

For example:

(config) # ptp box-id <box-id/all> alias <string>

domain <value>

Specifies a PTP domain number that will be used for the clock. The valid range is between 24 and 43. The default is 24.

For example:

(config ptp alias <string>) # domain 24

You can also choose to configure two attributes in a single line. For example, you can configure the PTP alias and domain in a single line as follows:

(config) # ptp alias <string> domain 24

mode <ordinary | boundary>

Configures the mode for PTP, ordinary or boundary.

For example:

(config ptp alias <string>) # mode ordinary

local-priority <value>

Specifies a priority value that will be used to determine the PTP source leader in a bidirectional clock relationship (formerly master) when the BMC algorithm chooses more than one clock as the source. This value overrides the default criteria for the BMC selection. The clock with the lower priority value will be selected.

For example, on a specific device, the local priority of a port is compared with the local priority of the clock. Based on the following criteria, the source is determined:

● If the local priority of the port is greater than the local priority of the clock, the clock becomes the source.
● If the local priority of the port is lesser than the local priority of the clock, the ort becomes the source.
● If the local priority of the port is equal to the local priority of the clock, the clock identity of the port and the clock is compared and the one that has the lower value becomes the source.

The valid range is between 1 and 255. The default is 128.

For example:

(config ptp alias <string>) # local-priority 128

priority2 <value>

Specifies a priority value that will be used to determine the primary source in a network. For example, if there are two clocks in a network that match the default criteria, the clock that has the lower priority value will be selected as the primary source. The valid range is between 0 and 255. The default is 128.

For example:

(config ptp alias <string>) # priority2 128

Related Commands

The following table summarizes other commands related to the ptp command:

Task

Command

Displays PTP runtime state.

(config) # show ptp alias <string>

Displays PTP runtime state for a cluster.

(config) # show ptp box-id <box-id/all> alias

<string>

Displays PTP configuration.

(config) # show ptp alias <string> configured

Displays PTP configurations in table format.

(config) # show ptp alias <string> brief

Displays the PTP clock details.

(config) # show ptp alias <string> clock

Displays the PTP’s foreign source record for a standalone node and a cluster.

(config) # show ptp port-list <x/y/z> foreign-source

Displays the PTP’s parent clock information.

(config) # show ptp alias <string> parent

Displays the PTP statistical counters.

(config) # show ptp alias <string> counters

Displays PTP configurations for a cluster.

(config) # show ptp box-id <box-id/all> alias <string> configured

Displays PTP configurations for a cluster in table format.

(config) # show ptp box-id <box-id/all> alias <string> brief

Displays the PTP clock details for a cluster.

(config) # show ptp box-id <box-id/all> alias <string> clock

Displays the PTP’s parent clock information for a cluster.

(config) # show ptp box-id <box-id/all> alias <string> parent

Displays the PTP statistical counters for a cluster.

(config) # show ptp box-id <box-id/all> alias <string> counters

Displays the list of ports on which PTP is enabled.

(config) # show ptp port-list <port-list>

Displays the PTP statistical counters for a list of PTP-enabled ports.

(config) # show ptp port-list <port-list> counter

Clears the statistical counters for the specified PTP.

(config) # clear ptp alias <string> counters

Clears the PTP statistical counters for the specified cluster.

(config) # clear ptp box-id <box-id/all> alias <string> counters

Clears the PTP statistical counters for a list of PTP-enabled ports.

(config) # clear ptp port-list <port-list> counter