Overlay multicast zone file transmission method and system

A file transfer and zone file technology, applied in the field of network information transmission, can solve the problems of flexible change, affecting the quality of DNS resolution service and timely updating of domain name data, without considering the link transmission capacity, etc., to improve the transmission speed and save money. The effect of investing and saving money
CN103685260BActive Publication Date: 2016-08-31CHINA INTERNET NETWORK INFORMATION CENTER
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA INTERNET NETWORK INFORMATION CENTER
Publication Date
2016-08-31

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Abstract

The invention discloses a district file transmission method and system covering multicast. All authoritative servers serving the same district form an overlay network, and a new district file transmission system is obtained by increasing the forwarding function of district files on each server. The system It can realize the function of multicast transmission of zone files from the master server to other slave servers. The transmission method of the overlay multicast zone file of the present invention is: the direct transmission between the original DNS primary server and the DNS secondary server becomes the indirect transmission with the DNS secondary server as the relay node; a forwarding scheduling server is added to collect The link information between each authoritative server is calculated to obtain a multicast tree through a certain multicast tree generation algorithm, and the respective forwarding tables are also calculated for each authoritative server. Because the method of the present invention utilizes the link between the secondary servers for data transmission, the zone file transmission is accelerated. Simultaneously, the present invention can save funds, and is convenient for realization and popularization.
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Description

technical field

[0001] The invention relates to a file transfer method, in particular to an area file transfer method covering multicast for transfer, and belongs to the field of network information transfer. Background technique

[0002] As an important infrastructure of the Internet, the Domain Name System (DNS) has always provided key basic services for the operation of the global Internet. In the DNS system, resolution data exists in the form of zone files. There are many authoritative servers serving the same zone, and these servers form an authoritative server group. One of the authoritative servers is the primary server, and the other servers are secondary servers. Currently, primary and secondary servers transmit data in a layered transport mechanism such as figure 1 As shown, some DNS secondary servers periodically obtain zone files from the DNS primary server, and other DNS servers obtain zone files from the former.

[0003] Based on security and service qualit...

Claims

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