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

Procedure

• Configure the UDP encapsulation mode.
  1. Run system-view

     The system view is displayed.

  2. Run interface interface-type interface-number

     The interface view is displayed.

  3. 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 16-2 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.

  4. Run ptp udp-egress destination-mac destination-mac

     The next-hop MAC address is specified for the interface to send SMPTE-2059-2 packets.

  5. 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.

  6. 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.

  7. Run commit

     The configuration is committed.