| 摘要 |
PROBLEM TO BE SOLVED: To shorten communication delay.SOLUTION: When a cloud controller 30 accepts a migration execution request from a user terminal 10, it has a VM operating at a data center (Sapporo) 2 migrate to a data center (Fukuoka) 12. Then, the cloud controller 30 changes setting of an address translation table in a router 60, and thereby makes a change to transfer a packet to an IPv6 address of a default gateway installed at a migration destination. When the router 60 relays data communication between the VM and the user terminal 10, it uses the address translation table set by the cloud controller 30 to perform NAT conversion of an IPv6 address or NAT conversion of an IPv6 address and IPv4 address. |
