Method and apparatus for inter-domain routing based on as architecture
AssigneeElectronics and Telecommunications Research Institute
InventorsTae-Wan You, Woo-Jik Chun
Life of this patent
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Abstract
A method and apparatus for inter-domain routing based on AS architecture includes retrieving route information for a destination IP address of a data packet received from a source host in a forwarding information base (FIB); requesting to obtain a domain locator corresponding to the destination IP address to the mapping system when the route information corresponding to the destination IP address is not retrieved; and performing routing by using the obtained domain locator and routing information that is previously stored in the routing information base (RIB) in which the source host is present.
Claims10
A computer-implemented method for generating a domain locator in a hierarchical domain architecture, the method comprising:
- advertising by a upper domain at least one of an autonomous system number (ASN) and a domain locator thereof to a lower domain based on the relation between domains;
- and
- generating by the lower domain, which receives the at least one of an autonomous system number (ASN) and a domain locator from the upper domain, its own domain locator by using the received at least one of an ASN number and a domain locator of the upper domain and its own ASN number.
A domain gateway apparatus comprising:
- a processor;
- and
- a memory storing program instructions that, when executed by the processor, causes the processor to:
- receive at least one of an ASN number and a domain locator of its own upper domain from a gateway apparatus of the upper domain;
- generate its own domain locator by using the received at least one of an ASN number and a domain locator of the upper domain and its own ASN number;
- and
- advertise the domain locator generated by using its own ASN number to its own lower domain.
Dependencies are inferred from the claim text.