What is the requirement of Remote Triggered Black Hole （RTBH ） filtering？（）
- A、IBGP updates exchange between trigger router and black hole router
- B、EBGP updates exchange between trigger router and black hole router
- C、OSPF updates exchange between trigger router and black hole router
- D、ISIS updates exchange between trigger router and black hole router
正确答案:A
答案解析:有
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