Huawei
H31-311_V2.5 · Question #25
A two-fiber ring topology consists of three network elements, which are arranged in counterclockwise order as A, B, and C. The service between A and C occupies the 48th VC-12 time slot in the first…
The correct answer is C. Bidirectional multiplex segment protection ring D. All of the above are possible. See the full explanation below for the reasoning.
SDH Transmission Principles
Question
A two-fiber ring topology consists of three network elements, which are arranged in counterclockwise order as A, B, and C. The service between A and C occupies the 48th VC-12 time slot in the first VC-4 on the short-path line. Then the service between B and C can also occupy the 48th VC-12 time slot in the first VC-4 on the short-path line. Which of the following is the protection subnet type of the ring network?
Options
- AOne-way road protection ring
- BSubnet connection protection ring
- CBidirectional multiplex segment protection ring D. All of the above are possible
How the community answered
(47 responses)- A13% (6)
- B4% (2)
- C83% (39)
Topics
#two-fiber ring#BLSR#VC-12 time slot reuse#multiplex section protection
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