FibroLAN Falcon Gen-3 M-Class, Руководство пользователя

Страница: 221 / 473

Falcon M-Class | User Guide
221
Cloxk Type Indicates the Type of the Clock Instance. There are five Device Types:
1.
Boundary - clock's Type is Ordinary-Boundary Clock.
2. Transparent (P2P) - clock's Type is Peer to Peer Transparent Clock.
3 . Transparent (E2E) - clock's Type is End to End Transparent Clock.
4. Master Only - clock's Type is Master Only.
5 . Slave Only - clock's Type is Slave Only
Definitions:
Master & Slave clock
: has only one physical port to the network, and
can be implemented as a master or slave clock.
The OC sends and receive PTP messages
It supports the synchronization mechanism.
Boundary clock : has multiple physical ports to the network and can be
used as an intermediate stage/device.
The BC performs the functionality of the Ordinary clock and can be
connected to multiple sub-networks: normally it is synchronized to one
Master reference clock and provides synchronization to various clients.
End to End Transparent clock : there are multiple ports and do not
behave or perform a Master and slave relationship. These ports forward
all PTP messages and correct the timing.
Peer to peer Transparent clock: there are multiple ports and do not
behave or perform a Master and slave relationship. Each port supports the
Pdelay mechanism
Port List
Set check mark for each port configured for this Clock Instance.
2 Step Flag
Static member: defined by the system, true if two-step Sync events and P
delay_Resp events are used. These messages are used to measure the
delay of the path between two clock ports
Event message is the timing message
Pdelay=path delay
Clock Identity It shows unique clock identifier
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 if only frequency synchronization is needed.
The master always responds to delay requests.
Protocol Transport protocol used by the PTP protocol engine:
Ethernet PTP over Ethernet multicast
EthernetMixed PTP using a combination of Ethernet multicast
and unicast
ip4multi PTP over IPv4 multicast
IPv4Mixed PTP using a combination of IPv4 multicast and
unicast
ip4uni PTP over IPv4 unicast
Note : IPv4 unicast protocol only works in Master and Slave only clocks
See parameter Clock Type
In a unicast Slave only clock you also need configure which master clocks
to request Announce and Sync messages from.
See: Unicast Slave Configuration