ptp

Syntax

ptp {enable | disable}

no ptp {enable | disable}

Description

Enable updating of IEEE 1588 PTP packets.

  • The feature is disabled by default.

  • The no form of this command is the same as ptp disable.

NOTE:

This feature is available on the 2930M and only in standalone. It is disabled for stacks.

NOTE:
PTP is supported in the following models:
  • JL319A
  • JL320A
  • JL321A
  • JL322A
PTP is not supported in the following models:
  • JL323A
  • JL324A
  • R0M67A
  • R0M68A

Command context

interface

Parameters

enable

When the ptp command is enabled, ports that support IEEE 1588 will operate in end-to-end transparent mode and will update the correction field of forwarded PTP packets.

disable

When the ptp command is disabled, PTP packets are forwarded unchanged.

Restrictions

  • IEEE 1588 end-to-end transparent mode cannot be enabled when there are flexible modules or transceiver ports in the system that do not support IEEE 1588. If a user attempts this, an error message like the following displays: Port A1 does not support IEEE 1588 end-to-end transparent mode.Use the command show ptp to identify the unsupported ports.

  • IEEE 1588 end-to-end transparent mode cannot be enabled on a stack. If the user attempts this, an error message like the following displays: IEEE 1588 end-to-end transparent mode cannot be enabled when stacking is enabled.

  • IEEE 1588 end-to-end transparent mode must be enabled or disabled on all ports at the same time.

  • MACsec cannot be enabled when IEEE 1588 end-to-end transparent mode is enabled.

  • IEEE 1588 end-to-end transparent mode cannot be enabled when MACsec is enabled.