In order to avoid misconnections due to a failed node in a Bidirectional Line Switched Ring (BLSR), Alarm Indication Signals (AISs) are sent on every channel normally terminating in that node. What is the name of this process?（）
- A、trunking
- B、squelching
- C、nodal bypass
- D、bridge and roll
- E、node failure insertion
正确答案:B
答案解析:有
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