7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
Configuration Guide
System Management
Edition: 01 3HE 16132 AAAB TQZZA 287
Figure 27 Messaging Sequence Between the PTP Slave Clock
and PTP Master Clocks
6.5.8.1 PTP Clock Synchronization
The IEEE 1588v2 standard synchronizes the frequency and time from a master clock
to one or more slave clocks over a packet stream. This packet-based
synchronization can be over unicast IP/UDP unicast or Ethernet multicast.
OSSG666
Announce
Duration
Interval
Sync
Duration
Interval
Signaling (Announce-grant)
Signaling (Announce-grant)
Signaling (Sync-grant)
Signaling (Sync-grant)
Sync
Sync
Announce
Announce
Announce
Signaling (Announce-request)
Signaling (Sync-request)
Signaling (Sync-request)
Signaling (Announce-request)
Packet
Master
Packet
Slave
Unicast
Renewal
Interval