It is a challenge to provide good resource reservation for mobile hosts.

为移动主机提供资源预留是一个挑战性的课题。

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There may be some methods for it, such as making random selection of the mobile hosts to handoff.

本文认为这时可以有多种选择方法，比如对进行切换的移动主机行随机选择。

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After switching, mobile hosts must find a shortest route to establish connection with correspondence node.

切换之后移动主机必须尽快找到一条最短路径路由与通信对端建立连接。

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