Configure PTP Multicast Primary and Member Ports for Ethernet Encapsulation
On an ACX Series router, you can configure a Precision Time Protocol (PTP) primary boundary clock with IEEE 802.3 or Ethernet encapsulation of PTP messages to the clients (ordinary and boundary) so that they can establish their relative time offset from this primary's clock or clock reference. PTP over Ethernet uses multicast addresses for communication of PTP messages between the client clock and the primary clock. The client clock automatically learns of primary clocks in the network, is immediately able to receive the multicast messages from the primary clock, and can begin sending messages to the primary clock without any pre-provisioning. The primary boundary clock synchronizes time through a client boundary port.
To configure PTP over Ethernet with multicast primary and client
ports, you must include the multicast-mode transport ieee-802.3 statement at the [edit protocols ptp master interface interface-name] and [edit protocols ptp slave
interface interface-name] hierarchy levels,
respectively.
To configure a PTP over Ethernet primary boundary clock and client boundary clock for multicast transmission, complete the following tasks:
Configure PTP over Ethernet Primary Boundary Clock Parameters
To configure the parameters of a PTP over Ethernet primary boundary clock:
After you have configured the PTP primary boundary clock parameters,
enter the commit command from configuration mode. To complete
the configuration of the primary boundary clock, complete Configure PTP over Ethernet Primary Boundary Clock Interface.
Configure PTP over Ethernet Primary Boundary Clock Interface
After you configured the primary boundary clock parameters for PTP over Ethernet with multicast transmission of PTP traffic, complete the configuration of the primary boundary clock by configuring an interface to act in the role of the primary clock.
To configure a PTP over Ethernet primary boundary clock interface:
After you have configured the PTP over Ethernet primary clock
interface, enter the commit command from configuration
mode.
Configure PTP over Ethernet Member Clock Parameters
An interface on which the primary clock is configured is called a primary interface and an interface on which the client clock is configured is called a client interface. A primary interface functions as the primary port and a client interface functions as the client port. Because PTP over Ethernet uses multicast addresses, a client port can automatically start receiving the multicast announce messages transmitted by the primary ports on a network and can also start communication with the primary port with minimal or no configuration. You can optionally configure these settings for a client port that communicates with the primary ports using PTP over Ethernet.
To configure a PTP over Ethernet client clock.
After you have configured the PTP client clock parameters, enter
the commit command in configuration mode. To complete
the configuration of the client clock, complete Configure PTP over Ethernet Member Clock Interface
Configure PTP over Ethernet Member Clock Interface
The client clock interface responds to the upstream PTP primary clock.
To configure the PTP client clock interface:
After you have configured the PTP over Ethernet client clock
interface, enter the commit command in configuration mode.