| 摘要 |
PROBLEM TO BE SOLVED: To ensure that pairing of beginning data and dependent data after switching is matched.SOLUTION: An XC unit 1 multicasts or broadcasts concatenation information. An assignment unit 2 assigns group numbers to groups of concatenation information for the multicast or broadcast beginning data and dependent data. A search unit 3 searches for concatenation information for the beginning data corresponding to the dependent data in the same group number. A regeneration unit 4 regenerates concatenation information for the dependent data on the basis of the searched concatenation information for the beginning data. A storage unit 5 stores switch information for the beginning data therein. On the basis of information on the beginning data included in the concatenation information for the dependent data regenerated by the regeneration unit 4, an information search unit 6 refers to the storage unit 5 to search for switch information for the dependent data of the concatenation information regenerated by the regeneration unit 4. On the basis of the searched switch information, a changeover unit 7 changes over the switch for the dependent data. |
