2. 计算机
  3. What information does a router running a link-state protocol use to build and maintain its topological database?

What information does a router running a link-state protocol use to build and maintain its topological database?

admin2019-04-08  26
问题 What information does a router running a link-state protocol use to build and maintain its topological database?
选项 A、        hello packets
B、        SAP messages sent by other routers
C、        LSAs from other routers
D、        beacons received on point-to-point links
E、        routing tables received from other link-state routers
答案A,C
解析 链路状态路由协议如何维护拓扑数据库？
A：hello包用于维护邻居关系，正确。
B：错误，没有这个概念。
C：通过其他路由器的LSA，正确。
D：从点到点链路接收，错误。答案片面
E：从其他路由器接收路由表，错误。相互间不直接发送路由表。
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