Nokia 7210 SAS-Mxp - Synchronization and Redundancy

7210 SAS-MXP, R6, R12, S, SX, T BASIC SYSTEM
CONFIGURATION GUIDE RELEASE 22.9.R1
System management
SSM values to be transmitted by interface of type
Internal relative
quality level
SDH interface
SyncE interface in
SDH mode
SONET interface
SyncE interface in
SONET mode
E1 interface T1 interface (ESF)
6. 1000 (ssub) 1010 (st3/eec2) 1000 (ssub) 00010000 11111111
(st3)
7. 1011 (sec/eec1) 1010 (st3/eec2) 1011 (sec) 00010000 11111111
(st3)
8. Lowest quality
qualified in QL-
enabled mode
1011 (sec/ eec1) 1100 (smc) 1011 (sec) 00100010 11111111
(smc)
9. 1111 (dnu) 1100 (smc) 1111 (dnu) 00100010 11111111
(smc)
10. 1111 (dnu) 1111 (dus) 1111 dnu 00101000 11111111
(st4)
11. 1111 (dnu) 1110 (pno) 1111 (dnu) 01000000 11111111
(pno)
12. 1111 (dnu) 1111 (dus) 1111 (dnu) 00110000 11111111
(dus)
13. 1111 (dnu) 1111 (dus) 1111 (dnu) 00110000 11111111
(dus)
14. 1111 (dnu) 1111 (dus) 1111 (dnu) 00110000 11111111
(dus)
15. 1011 (sec/eec1) 1010 (st3/eec2) 1011 (sec) 00010000 11111111
(st3)
6.5.7 IEEE 1588v2 PTP
The Precision Time Protocol (PTP) is a timing-over-packet protocol defined in the IEEE 1588v2 standard
1588 PTP 2008.
PTP may be deployed as an alternative timing-over-packet option to ACR. PTP provides the capability to
synchronize network elements to a Stratum-1 clock or primary reference clock (PRC) traceable source
over a network that may or may not be PTP-aware. PTP has several advantages over ACR. It is a
standards-based protocol, has lower bandwidth requirements, can transport both frequency and time, and
can potentially provide better performance.
The basic types of PTP devices are the following:
• ordinary clock
• boundary clock
3HE 18197 AAAB TQZZA
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