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Vlan priority
7.2.2.2 Default tab
The Default tab displays the current configuration/state of the internal PTP clock of the OTMC 100.
When the OTMC 100 is in the master state, the slave clocks in the network/domain in which the
OTMC 100 participates are synchronized to this clock. The data listed here correspond to the Default
Dataset specified in IEEE 1588-2008, clause 8.2.1.
Two step
Clock identity
Clock class
Displays the Vlan priority. The Power Profile according to
IEEE C37.238-2011 requires an IEEE 802.1Q VLAN tag. This value
represents the PCP (Priority Code Point) field (3 bits) within the TCI
(Tag Control Identifier). See IEEE C37.238-2011, clause 5.6. Only
available for Power Profile (OTMC 100p only).
This parameter is set in the PTP configuration (see page 67) .
Indicates whether the OTMC 100 is operating as a two step clock (true)
or as a one step clock (false), see IEEE 1588-2008, clauses 7.3.8.3,
8.2.1.2.1 and 13.3.2.6.
This parameter is set in the PTP configuration (see page 67) .
Displays the clock identity. IEEE 1588-2008, clause 7.5.2.2, requires that
each clock in a PTP network has a unique clock identifier. This identifier
is an 8-octet array. The OTMC 100 automatically sets the clock identity to
a unique value based on the device's MAC address according to
IEEE 1588-2008, clause 7.5.2.2.2.
Displays the current clock class of the OTMC 100 (see IEEE 1588-2008,
clause 7.6.2.4). The clock class is broadcast in the corresponding PTP
data packets. The value of the clock class parameter is automatically set
by the OTMC 100 depending on the source of time that is currently
available:
PRIMARY_REF_PTP (6)
The clock of the OTMC 100 is locked to a primary reference time source,
i.e., to the GPS system.
PRIMARY_REF_PTP_HOLDOVER (7)
The clock was previously locked to GPS time but has lost GPS reception.
The internal oscillator of the OTMC 100 is used as the source of time and
provides time with the accuracy given by the Clock accuracy parameter.
NOT_IN_SPEC_PTP_A (52)
The clock is not locked to GPS time and is not within its holdover
specification.
The OTMC 100 Web Interface
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