Nokia 7210 SAS-Mxp - Network Synchronization

7210 SAS-MXP, R6, R12, S, SX, T BASIC SYSTEM
CONFIGURATION GUIDE RELEASE 22.9.R1
System management
• priority1
• clock class
• clock accuracy
• PTP variance (offsetScaledLogVariance)
• priority2
• clock identity
• steps removed from the grandmaster
The 7210 SAS sets its local parameters as described in the following table.
Table 34: Local clock parameters when profile is set to ieee1588-2008
Parameter Value
clockClass 248 – the 7210 SAS is configured as a boundary clock
255 – the 7210 SAS is configured as an ordinary clock time
Receiver
clockAccuracy FE - unknown
offsetScaledLogVariance FFFF – not computed
clockIdentity Chassis MAC address following the guidelines of section
7.5.2.2.2 of IEEE 1588-2008
If the profile setting for the clock is "itu-telecom-freq" (ITU G.8265.1 profile), the precedence order for the
best timeTransmitter selection algorithm is:
• clock class
• PTSF (Packet Timing Signal Fail) - Announce Loss (miss 3 Announce messages or do not get an
Announce message for 6 seconds)
• priority
The 7210 SAS sets its local parameters as described in the following table.
Table 35: Local clock parameters when profile is set to itu-telecom-freq
Parameter Value
clockClass 80-110 – value corresponding to the QL out of the central
clock of the 7210 SAS as per Table 1/G.8265.1
255 – the 7210 SAS is configured as an ordinary clock time
Receiver
The ITU-T profile is for use in environments with only ordinary clock timeTransmitters and timeReceivers
for frequency distribution.
If the profile setting for the clock is "g8275dot1-2014", the precedence order for the best timeTransmitter
selection algorithm is very similar to that used with the default profile. It ignores the priority1 parameter,
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