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Overlaying multicast zone file transmitting method and system

A file transmission and zone file technology, applied in the field of network information transmission, can solve the problems that affect the quality of DNS resolution service and timely update of domain name data, the transmission efficiency cannot be optimally adapted, and the link transmission capacity is not considered. To achieve the effect of easy implementation and promotion, exemption of capital investment, and saving of funds

Active Publication Date: 2014-03-26
CHINA INTERNET NETWORK INFORMATION CENTER
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Problems solved by technology

[0004] The existing zone file transmission mechanisms are all artificially designated transmission modes based on subjective judgments without considering factors such as link transmission capabilities and dynamic changes in network conditions.
Moreover, this mode cannot be flexibly changed with changes in environmental conditions, and the transmission efficiency cannot be optimally adaptable, which in turn affects the quality of DNS resolution services and the timely update of domain name data

Method used

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  • Overlaying multicast zone file transmitting method and system
  • Overlaying multicast zone file transmitting method and system
  • Overlaying multicast zone file transmitting method and system

Examples

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Embodiment Construction

[0042] These examples are merely illustrative, and it cannot be assumed that the specific embodiment of the present invention is limited to the description of these examples. For those of ordinary skill in the technical field of the present invention, without departing from the concept of the present invention, some simple deduction and transformation can also be made, which should be regarded as belonging to the protection scope of the present invention. Alternative methods are as follows:

[0043] (1) In addition to the shortest path, minimum spanning tree, low-cost shortest path tree and other algorithms mentioned above, other algorithms can also be used as the construction method of multicast tree;

[0044] (2) In addition to the maximum TCP throughput of the link as the link cost, other indicators can also be used as the link cost;

[0045](3) In addition to using the above routing algorithm (referred to as a centralized routing algorithm), a distributed routing algorith...

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Abstract

The invention discloses a covering multicast zone file transmitting method and system. An overlaying network is composed of all authoritative servers serving the same cell, a zone file forwarding function is added to all the servers to obtain a novel zone file transmitting system, and the system can achieve multicast transmission of zone files from the main server to other auxiliary servers. The covering multicast zone file transmitting method includes the steps that an original direct transmission between the DNS main server and the DNS auxiliary servers is changed to be indirect transmission with the DNS auxiliary servers as relay nodes; a forwarding dispatch server is additionally arranged and used for collecting link information between all the authoritative servers, a multicast tree is calculated through a certain multicast tree generating algorithm, and respective forwarding tables are calculated for all the authoritative servers. According to the method, because links among the auxiliary servers are used for data transmission, zone file transmission is accelerated, and meanwhile the covering multicast zone file transmitting method and system can save capital and are convenient to achieve and popularize.

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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Application Information

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IPC IPC(8): H04L29/06H04L29/08H04L12/761H04L12/721H04L45/16
Inventor 刘明星何峥李强
Owner CHINA INTERNET NETWORK INFORMATION CENTER
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