Default
Telecoms profiles:
G.8265.1
G.8275.1+Sync-E
Power profile: IEEE C37.238-2011
Caution: Limitation on packet rate: It is not recommended to distribute
PTP at full packets rate (128 pkt/s) on all its 16 network interfaces at the
same time. In advanced configuration the user can modify CPU priorities to
avoid dropping packets on most critical ports. Unicast negotiation can also
be used to smartly decrease the packet rate depending on CPU load.
5.4.1 License
Note: PTP License: A specific license must be purchased in order to get full
access to the IEEE 1588- 2008 (PTPv2) module. When no license is
provided, the PTP instance will start with default profile and parameters.
The user will only be allowed to configure the Role of the port (Master,
Slave & Disabled).
The following table compares the configuration of IEEE-1588 (PTP) when using or not a
valid license. It is worth highlighting that without license the PTP master instances will
announce themselves with default constant values instead of forwarding the VCS clock
information from the active timing source ("Virtual Clock Overview" on page47)
Table 5-2:
IEEE 1588 configuration with/without license
PTP With License Without License
Mode Auto, Master, Slave, Disabled Master, Slave or Dis-
abled
BMCA Enabled or Disabled Disabled
Transfer mode Multicast or Unicast Multicast
Unicast Nego-
tiation
Enabled or Disabled Disabled
Delay Mechanism End to End (E2E) or Peer to Peer (P2P) End to End (E2E)
Network mode IPv4 or Ethernet (layer 2) IPv4
Domain 0-255 0
Announce ratio [1 msg/16s,16 msg/s] ([-4,4]) 1 msg/s
5.4 IEEE 1588-2008 (PTPv2)
CHAPTER 5 • WR-Z16 User Manual Rev. v3.4
63
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