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单项选择题What is the Cisco IOS default behavior for switching from the shared tree to the shortest path tree in PIM-SM operations?()

A、immediately after receiving the first packet on the shared tree for a given (S,G)

B、after receiving over 1 kb/s traffic onthe shared tree for a given (S,G)

C、10 seconds after receiving the first packet on the shared tree for a given (S,G)

D、30 seconds after receiving the first packet on the shared tree for a given (S,G)

E、after receiving over 10 kb/s traffic onthe shared tree for a given (S,G)

  • A
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