试题详情
- 单项选择题Why is an STM-1 2F-MS-SPRing NOT feasible？（）
A、 An equal amount of working and protect bandwidth is required.
B、 DCC bandwidth is not large enough to handle K1/K2 processing.
C、 Switch times would exceed 50 ms for an STM-1 MS-SPRing ring.
D、 There is not enough bandwidth in an STM-1 ring to justify MS-SPRing protection.
- A
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