| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem wherein a transfer of stream data is interrupted until a program is installed in a network node. <P>SOLUTION: A packet processing part 30 reads out a packet from a data buffer 24, and a program tag extraction part 32 extracts information about a program storage position from a tag of the packet. A download part 34 downloads an individual program 40 from the storage position and stores it in a program storage part 36. While the individual program 40 is downloaded, a program switching part 38 commands a program execution part 26 to execute a spare program 42. When the download is finished, the program switching part 38 controls the program execution part 26 so as to switch to the individual program 40. The program execution part 26 executes the individual program 40 to control a packet transfer by the packet processing part 30. <P>COPYRIGHT: (C)2004,JPO</p> |
