求助，为什么答案不是C啊？另，怎么放图啊？9V104.4第430）

rebecca

Refer to the exhibit.Explain how the routes in the table are being affected by the status change on interface
Ethernet0.


A. The router is poisoning the routes and multicasting the new path costs via interface Ethernet1.
B. The router is receiving updates about unreachable networks from router that are connected to interface
Ethernet1.
C. The router is poisoning the routes and broadcasting the new path costs via interface Ethernet1.
D. The router is requesting updates for these networks from routers that are connected to interface
Etherne1.
Answer: A
Explanation/Reference:
E0端口down，部分路由收不到更新，将此部分路由的metric设为16，通过E1端口发布

fulltimes

broadcasting 不对，是组播而不是广播

rebecca

fulltimes 发表于 2011-6-30 13:54

                               
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broadcasting 不对，是组播而不是广播

多谢指教。差一点忘记了 224.0.0.9是用在这里吗？

zhoubenjian

fulltimes

rebecca 发表于 2011-6-30 12:28

                               
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多谢指教。差一点忘记了 224.0.0.9是用在这里吗？

只要是RIP发送路由信息，都会用到224.0.0.9

dongming89