Huawei OptiX OSN 7500 - Figure 8-2 MS-Shared Optical Path Protection; Figure 8-3 Two Lower-Speed Lines Share One Higher-Speed Line; Figure 8-4 Sharing Protection of the Lines with the same Speed

aturesOSN 7500
Technical Manual - System Description 8 Protection
Huawei Technologies Proprietary
8-6
OptiX OSN
7500
STM-4/16/64
MS-shared ring
STM-16/64
OptiX OSN
7500
STM-4/16/64
OptiX OSN 7500
OptiX OSN 7500
STM-4/16/64
STM-4/16/64STM-4/16/64
STM-4/16/64
MS-shared ring
Figure 8-2 MS-shared optical path protection
Generally, two lower-speed west line units share one higher-speed east line unit, as
shown in Figure 8-3
STM-16
MSP ring 1
MSP ring 2
X
STM-16
STM-16
STM-64
Figure 8-3 Two lower-speed lines share one higher-speed line
The OptiX OSN 7500 also supports the line units at the same speed to form a
bidirectional sharing protection, as shown in Figure 8-4. In this case, the west STM-16
line units can only add part of VC-4 into the MSP ring group.
STM-16
MSP ring 1
MSP ring 2
X
STM-16
STM-16
STM-16
Figure 8-4 Sharing protection of the lines with the same speed