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User Guide
232
Peer Delay Request Computed number of received (RX) and transmitted (TX)
Peer Delay Request messages.
The Peer Delay Request message is part of the Peer Delay
mechanism used to measure the two-way latency between
master and slave.
Peer Delay Response Number of received (RX) and transmitted (TX) Peer Delay
Response messages.
The Peer Delay Response message is part of the Peer
Delay request-response mechanism used to measure the
two-way latency between master and slave. The Peer Delay
Response message is always generated by the PTP entity
as a reply to a Peer Delay Request received from the peer
entity.
Follow-up Number of received (RX) and transmitted (TX) Follow-up
messages.
Follow up packets are generated by some PTP masters
when for some reason Sync messages cannot carry accu-
rate timestamps. In this case the a Follow up message carry-
ing the accurate timestamps is transmitted immediately after
every Sync packet.
Peer Delay Follow-up Number of received (RX) and transmitted (TX) Peer Delay
Follow-up messages.
Peer Delay Follow-up packets are generated by some PTP
devices using the Peer delay mechanism masters when for
some reason Sync messages cannot carry accurate times-
tamps. In this case the a Follow up message carrying the
accurate timestamps is transmitted immediately after every
Sync packet.
Announce Number of received (RX) and transmitted (TX) Announce
messages.
Announce messages are generated by PTP ordinary and
boundary clocks in order to establish or modify a master /
slave hierarchy by means the Best Master Clock (BMC)
algorithm.
Signaling Number of received (RX) and transmitted (TX) Signalling
messages.
Signaling messages are generated by PTP entities to negoti-
ate some optional features like unicast transmission.
Table 9.6: IEEE 1588 Message Statistics
Result Description
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