问题:
[多选题]5. 对于PIM-SM路由器R1的多播路由表来说,在多播组227.7.7.7的(*,G)表项中列出了两个接口: s0/0和fa0/0。假设接下来的10分钟之内(*,G)表项都没有出现任何变化,那么下面哪一项是正确的?
A.R1正在向RP发送PIM加入消息
B.只要RP继续将多播组227.7.7.7的多播流量转发给R1,R1就不需要向RP发送PIM加入消息
C.R1正在从s0/0和fa0/0中的一个接口接收PIM加入消息
D.R1正在从接口fa0/0接收IGMP报告消息
E.虽然RP一直周期性地向R1发送PIM剪除消息,但R1一直在应答PIM拒绝(Reject)消息,因为R1 仍然希望接收该多播组的数据包
Tags:思科认证CCIE路由和交换分类模拟试题
答案解析:
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