Lantronix SISPM1040-xxxx-L3 Web User Guide
33856 Rev. A https://www.lantronix.com/ 325
CRR: The ratio of the frequency of the grandmaster to the frequency of the Local Clock entity, expressed as
fractional frequency offset.
Clock Default Dataset: The clock default data set is defined in the IEEE 1588 Standard. It holds three groups of
data: the static members defined at clock creation time, the Dynamic members defined by the system, and the
configurable members which can be set here.
Device Type: Indicates the Type of the Clock Instance. There are five Device Types:
Ord-Bound - Clock's Device Type is Ordinary-Boundary Clock.
P2p Transp - Clock's Device Type is Peer to Peer Transparent Clock.
E2e Transp - Clock's Device Type is End to End Transparent Clock.
Master Only - Clock's Device Type is Master Only.
Slave Only - Clock's Device Type is Slave Only.
One-Way: If true, one way measurements are used. This parameter applies only to a slave. In one-way mode
no delay measurements are performed (i.e., this is applicable only if frequency synchronization is needed).
The Master always responds to delay requests.
2 Step Flag: True if two-step Sync events and Pdelay_Resp events are used.
Ports: The total number of physical ports in the node.
Clock Identity: Shows unique clock identifier.
Dom: The clock domain [0..127].
Clock Quality: The clock quality is determined by the system, and holds 3 parts: Clock Class, Clock Accuracy
and OffsetScaledLog Variance as defined in IEEE1588. The Clock Accuracy values are defined in IEEE1588
table 6 (Currently the clock Accuracy is set to 'Unknown' as default).
Pri1: Clock priority 1 [0..255] used by the BMC master select algorithm.
Pri2: Clock priority 2 [0..255] used by the BMC master select algorithm.
Local Prio: Priority [1..255] used in the 8275.1 BMCA.
Protocol: Transport protocol used by the PTP protocol engine; can be:
Ethernet: PTP over Ethernet multicast.
EthernetMixed: PTP using a combination of Ethernet multicast and unicast.
IPv4Multi: PTP over IPv4 multicast.
IPv4Mixed: PTP using a combination of IPv4 multicast and unicast.
IPv4Uni: PTP over IPv4 unicast.
IPv6Mixed: PTP using a combination of IPv6 multicast and unicast. Currently, this is supported for only
One step E2E Transparent clock.
EthIPv4IPv6Combo: PTP using any one of Ethernet, IPv4 or IPv6. This is supported for only one step
E2E Transparent clocks.
VID: VLAN Identifier used for tagging the VLAN packets.
PCP: Priority Code Point value used for PTP frames.
DSCP: DSCP value used when transmitting IPv4 encapsulated packets
GM Capable: TRUE if the time-aware system is capable of being a Grandmaster