(Optional) Configuring an SMPTE-2059-2 Packet Encapsulation Mode

This section describes how to configure an SMPTEe -2059-2 packet encapsulation mode. SMPTE-2059-2 packets can be encapsulated into Layer 3 packets for transmission. Select the encapsulation type based on networking environments and configure the source and destination IP addresses and transmission priority.

Prerequisites

Before configuring an SMPTE-2059-2 packet encapsulation mode, check the type of the link over which SMPTE-2059-2 packets are transmitted.

For Layer 3 link transmission, select the UDP encapsulation mode.

Context

Select an SMPTE-2059-2 packet encapsulation mode based on networking environments and specify the source IP address, destination IP address, and transmission priority for SMPTE-2059-2 packets.

Perform the following operations on an SMPTE-2059-2 device:

Procedure

Configure the UDP encapsulation mode.

Run system-view
The system view is displayed.
Run interface interface-type interface-number
The interface view is displayed.

Run ptp udp-egress source-ip source-ip [ destination-ip destination-ip ]

The interface is configured to use UDP to encapsulate SMPTE-2059-2 packets with the specified source and destination IP addresses.

For unicast UDP encapsulation:

Specify the unicast destination IP address encapsulated in the PTP packet in the interface view.

For multicast UDP encapsulation:

A default multicast destination IP address is adopted, which means that the destination-ip destination-ip parameter does not need to be configured. The following table lists the mapping between default multicast destination IP addresses and delay measurement mechanisms.

**Table 1** Mapping between default multicast destination IP addresses and delay measurement mechanisms
Packet Type	IP Address
Non-peer delay measurement mechanism	224.0.1.129
Peer delay measurement mechanism	224.0.0.107

If the destination-ip destination-ip parameter is not specified, a multicast IP address is used by default.

Run ptp udp-egress destination-mac destination-mac
The next-hop MAC address is specified for the interface to send SMPTE-2059-2 packets.
Run ptp udp-egress source-ip source-ip [ dscp dscp ]
A DSCP value is set for the interface to send UDP-encapsulated SMPTE-2059-2 packets.
Run ptp udp-egress source-ip source-ip vlan vlan-id [ priority priority ]
A VLAN ID and a priority value are set for the interface to send or receive UDP-encapsulated SMPTE-2059-2 packets.

For SMPTE-2059-2 services, higher values of dscp and priority minimize the delay or congestion impact on clock signal recovery. Using the largest values of dscp and priority is recommended.
Run commit
The configuration is committed.