How is RPF used in multicast routing？（）A、to prevent multicast packets from loopingB、to prevent PIM packets from loopingC、to instruct PIM where to send a （*， G） or （S， G） join messageD、to prevent multicast packets from looping and to instruct PIM where to - 题多多

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题目

How is RPF used in multicast routing？（）

A、to prevent multicast packets from looping
B、to prevent PIM packets from looping
C、to instruct PIM where to send a （*， G） or （S， G） join message
D、to prevent multicast packets from looping and to instruct PIM where to send a （*， G） or （S， G） joinmessage

参考答案和解析

正确答案:D

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