ANYCAST ROUTING METHOD AND APPARATUS FOR SUPPORTING SERVICE FLOW IN INTERNET SYSTEM
First Claim
1. An anycast routing method for guaranteeing a service flow transmitting to at least one of servers in a group in an in a terminal of an IPv6 (Internet protocol version 6) Internet system, comprising:
- requesting an anycast service to at least one of the servers;
receiving a packet including an unicast address in a destination option header as a response for the anycast service request from at least one of the servers;
storing the unicast address in an anycast cache; and
transmitting a packet through an unicast routing operation using the unicast address stored in the anycast cache if data to transmit to the service flow is received from an application.
1 Assignment
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Accused Products
Abstract
An anycast routing method and apparatus for supporting a consecutive service flow are provided. In the any cast routing method, an anycast service is requested to at least one of the servers, and a packet including a destination option header with an anycast address is received as a response for the anycast service request from at least one of the servers. Then, the anycast address is stored in an anycast cache. The packet is transmitted through an anycast routing operation using the anycast address stored in the anycast cache if data to transmit to the service flow of at least one of the servers is received from an application.
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Citations
22 Claims
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1. An anycast routing method for guaranteeing a service flow transmitting to at least one of servers in a group in an in a terminal of an IPv6 (Internet protocol version 6) Internet system, comprising:
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requesting an anycast service to at least one of the servers; receiving a packet including an unicast address in a destination option header as a response for the anycast service request from at least one of the servers; storing the unicast address in an anycast cache; and transmitting a packet through an unicast routing operation using the unicast address stored in the anycast cache if data to transmit to the service flow is received from an application. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An anycast routing method for guaranteeing a service flow receiving from a terminal in at least one of servers in a group of an IPv6 (Internet protocol version 6) Internet system, comprising:
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transmitting a packet having a destination option header setup with a unicast address according to an anycast service request from the terminal; receiving a packet having a routing header setup with an anycast address from the terminal through a unicast routing operation; and processing the received packet. - View Dependent Claims (10, 11, 12)
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13. An anycast routing apparatus for guaranteeing a service flow transmitting to at least one of servers in a group in a terminal of an IPv6 (Internet protocol version 6) Internet system, comprising:
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an anycast cache manager for receiving a packet having a destination option header setup with a unicast address as a response for an anycast service request from at least one of the servers, storing the unicast address in an anycast cache, and removing the unicast address from the anycast cache; and a routing header generator for looking up the anycast cache to find a corresponding unicast address when receiving data of a service flow to transmit to at least one of the servers and transmitting a packet having a routing header using the corresponding unicast address through a unicast routing operation. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An anycast routing apparatus for guaranteeing a service flow receiving from a terminal in at least one of servers in a group of an IPv6 (Internet protocol version 6) Internet system, comprising:
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a unicast address transmitter for transmitting a packet having a destination option header setup with a unicast address according to an anycast service request from the terminal; and a routing header processor for receiving and processing a packet having a routing header setup with an anycast address through a unicast routing operation from the terminal. - View Dependent Claims (21, 22)
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Specification