ECS4660-28F_Management Guide-R03

Table Of Contents
C
HAPTER
24
| System Management Commands
Precision Time Protocol
– 972 –
COMMAND MODE
Interface Configuration (Ethernet, Port Channel)
COMMAND USAGE
When using Ethernet as the transport mechanism, PTP messages use
Ethernet formatted packets with the 88F7 Ethertype. PTP messages use
MAC addresses as specified below.
When using UDP over IPv4 as a transport mechanism, the following
UDP destination ports are reserved values assigned to PTP.
When using UDP over IPv4 as a transport mechanism, PTP messages
use the multicast addresses as specified below.
When using UDP over IPv6 as a transport mechanism, the following
UDP destination ports are reserved values assigned to PTP.
Table 77: Ethernet Multicast MAC Addresses
Message Types Address (hex)
All except peer delay mechanism messages 01-1B-19-00-00-00
Peer delay mechanism messages 01-80-C2-00-00-0E
Table 78: UDP/IPv4 Destination Port Numbers
Message Types UDP Port Number
Event message 319
Multicast general message 320
Unicast general message addressed to a clock 320
Table 79: UDP/IPv4 Multicast Addresses
Message Types Address
All except peer delay mechanism messages 224.0.1.129
Peer delay mechanism messages 224.0.0.107
Table 80: UDP/IPv6 Destination Port Numbers
Message Types UDP Port Number
Event message 319
Multicast general message 320
Unicast general message addressed to a clock 320