题库第15题不解，A答案为什么不正确

liuyuhui_gdtyj

题目（A答案为什么不正确）：
Refer to the exhibit. On the basis of the configuration that is provided, how would the BGP updates that
come from router R1 be replicated inside autonomous system 65200?

A. All BGP updates that are received on router R2 will be sent to routers R3 and R4. Routers R3 and R4 will then forward those BGP updates to router R5.
B. All BGP updates that are received on router R2 will not be sent to routers R3 and R4.
C. All BGP updates that are received on router R2 will be sent directly to router R5.
D. None of the BGP updates that are received on router R2 will ever be received by router R5.

q0066421

默认，从ibgp对等体收到的路由，不会传给下一个IBP对等体，简称 i-i不传。反射器就是解决这个问题的。

云上舒

这道题是选B吧，这是ibgp的水平分割问题，就是从我的ibgp学到的路由不会在发给其他的ibgp邻居，如果是ebgp邻居的话，它是会继续传递的

liuyuhui_gdtyj

当时我没明白，后来我弄明白了，谢谢各位。