| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology of providing optimum priority information to a cache used for a DNS resolver. <P>SOLUTION: A client device disclosed herein includes: a request transmission means for transmitting a name resolution request to a server apparatus; a transmission time storage means for storing a transmission time of the name resolution request; a response reception means for receiving a name resolution response from the server apparatus; a reception time storage means for storing a reception time of the name resolution response; a response time calculation means for calculating a response time from the transmission time and the reception time; a temporary storage means for storing the name resolution response and the response time and storing a new name resolution response after deleting a name resolution response corresponding to the shortest response time when there is no free capacity for storage of the new name resolution response; a searching means for searching whether or not the name resolution response corresponding to the name resolution request is stored in the temporary storage means; and a response output means for outputting at least parts of the searched name resolution responses when the searching means searches the name resolution responses. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
