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6-4
Cisco ONS 15600 Reference Manual, R7.0
Chapter 6 Timing
6.3 Synchronization Status Messaging
lists the Generation 2 message set.
ST2
3
Stratum 2
ST3
4
Stratum 3
SMC
5
SONET minimum clock
ST4
6
Stratum 4
DUS
7
Do not use for timing synchronization
RES
—
Reserved; quality level set by user
Table 6-1
SSM Generation 1 Message Set (continued)
Message
Quality
Description
Table 6-2
SSM Generation 2 Message Set
Message
Quality
Description
PRS
1
Primary reference source—Stratum 1
STU
2
Synchronization traceability unknown
ST2
3
Stratum 2
TNC
4
Transit node clock
ST3E
5
Stratum 3E
ST3
6
Stratum 3
SMC
7
SONET minimum clock
ST4
8
Stratum 4
DUS
9
Do not use for timing synchronization
RES
—
Reserved; quality level set by user
Содержание ONS 15600 Series
Страница 27: ...xxvii Cisco ONS 15600 Reference Manual R7 0 About this Manual ...
Страница 29: ...xxix Cisco ONS 15600 Reference Manual R7 0 About this Manual ...
Страница 52: ...1 22 Cisco ONS 15600 Reference Manual R7 0 Chapter 1 Shelf and Backplane Hardware 1 11 5 Card Replacement ...
Страница 80: ...2 28 Cisco ONS 15600 Reference Manual R7 0 Chapter 2 Card Reference 2 9 Filler Card ...
Страница 110: ...5 10 Cisco ONS 15600 Reference Manual R7 0 Chapter 5 Security 5 4 2 Shared Secrets ...
Страница 142: ...7 28 Cisco ONS 15600 Reference Manual R7 0 Chapter 7 Circuits and Tunnels 7 16 Server Trails ...
Страница 270: ...13 16 Cisco ONS 15600 Reference Manual R7 0 Chapter 13 SNMP 13 8 5 History Control RMON Group ...