Nokia 7210 - Page 288

System Management
288
7210 SAS-M, T, R6, R12, Mxp, Sx, S Basic System
Configuration Guide
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Use subject to Terms available at: www.nokia.com
3HE 17358 AAAB TQZZA
• show system ptp port and show system ptp port port-id [detail] display
received packet rates
Figure 27 shows the unicast negotiation procedure performed between a slave and
a peer clock that is selected to be the master clock. The slave clock will request
Announce messages from all peer clocks but only request Sync and Delay_Resp
messages from the clock selected to be the master clock.
Figure 27 Messaging Sequence Between the PTP Slave Clock
and PTP Master Clocks
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