在路由器和主机上配置IP地址，子网掩码，和网关地址。
Configure IP addresses, subnet masks, and gateway addresses on routers and hosts.
选择适当的介质、线缆、端口和连接器将路由器连接到其他的网络设备和主机
Select the appropriate media, cables, ports, and connectors to connect routers to other network devices and hosts
当移动主机位置改变时，数据流的路由改变了，那么分组延迟可能会改变，因为新的路由上的路由器会获得不同的路径长度和不同的排队延迟。
When mobile host changes its position, the route of the flow changes, which may causes the change of packet delay as routers on the new route may gain different path length and queuing delay.
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