Whether SCC replacement in a slave subrack affects services

If SCC 1+1 protection has been configured, SCC replacement in a slave subrack has no impact on the system.
If SCC 1+1 protection has not been configured, the following impact may be present before the newly configured SCC restarts from the reset triggered during board replacement:
1. The fan speed mode is changed from Auto speed mode to High Speed mode.
2. The ESC or OSC communication of the slave subrack fails.
3. The POWER_FAIL alarm in the slave subrack cannot be reported.
4. Subrack ID conflicts with the ID of the slave subrack cannot be detected.
5. In the slave subrack, some optical-layer boards go offline and cannot be managed, but services are not affected.

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