In order to avoid misconnections due to a failed node in an MS-SPRing， Alarm Indication Signals （AISs） are sent on every channel normally terminating in that node. What is the name of this process？（）
- A、 bridging
- B、 switching
- C、 squelching
- D、 nodal bypass
- E、 node failure insertion
正确答案:C
答案解析:有
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