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Chapter 7: Operation
System summary and status
Page 7-14
Value
Meaning
Holdover
The ODU is a Cluster Slave and the 1 pps reference has been
lost at the input to an upstream PTP-SYNC unit. The ODU is
locked to an upstream ODU that is in the Holdover (No GPS
Sync In) state.
The ODU is transmitting.
If the reference input is not restored at the upstream PTP-
SYNC unit, the Holdover state will terminate automatically
after a period set by TDD Holdover Duration.
Not Synchronized (No GPS
Sync In)
The 1 pps reference has been lost at the input to the PTP-SYNC
unit and the holdover period has expired.
If the ODU is configured for TDD Holdover Mode = Best Effort
then the ODU will be transmitting, otherwise it will be muted.
Not Synchronized
The ODU is a Cluster Slave and the 1 pps reference has been
lost at the input to an upstream PTP-SYNC unit. The holdover
period has expired.
If the ODU is configured for TDD Holdover Mode = Best Effort
then the ODU will be transmitting, otherwise it will be muted.
Acquiring Lock
The wireless link is up and the master ODU is attempting to
synchronize the TDD frame structure with an external 1 pps
reference. Frame timing changes at the TDD master are
constrained to allow for tracking by the TDD slave.
This state is not allowed when TDD Holdover Mode = Strict.
Table 203 TDD Synchronization Status values and meanings for CMM5 or direct connection
Value
Meaning
Inactive
TDD Synchronization has been administratively disabled.
This value is not displayed in the System Status page, but can
be determined from the SNMP MIB.
TDD Synchronization Status is always in the Inactive state at a
TDD Slave unit.
Initialising
The wireless link is down, and the master ODU is attempting to
synchronize the TDD frame structure with an external 1 pps
reference.
Synchronization proceeds rapidly in this state because the TDD
master does not need to consider the ability of the TDD slave
to track changes in frame timing.
Locked
The TDD frame structure is locked to a 1 pps reference from
the CMM5 or from the directly-connected partner ODU.
The ODU is transmitting.
Содержание PTP 670 Series
Страница 1: ...F Cambium PTP 670 Series User Guide System Release 670 02 50 ...
Страница 349: ...Chapter 5 Installation Installing an SFP Ethernet interface Page 5 52 Correct Incorrect ...
Страница 405: ...Chapter 6 Configuration and alignment System menu Page 6 46 Figure 151 LAN Configuration page PTP topology TDM support ...
Страница 406: ...Chapter 6 Configuration and alignment System menu Page 6 47 Figure 152 LAN Configuration page PTP topology SFP support ...
Страница 408: ...Chapter 6 Configuration and alignment System menu Page 6 49 Figure 154 LAN Configuration page HCMP topology ...
Страница 416: ...Chapter 6 Configuration and alignment System menu Page 6 57 Figure 156 QoS Configuration page IP MPLS ...
Страница 445: ...Chapter 6 Configuration and alignment Management menu Page 6 86 Figure 173 Time Configuration page SNTP enabled ...
Страница 551: ...Chapter 7 Operation System statistics Page 7 64 Figure 250 Main Port Counters page when main port is bridging traffic ...