CN102238016A

CN102238016A - Network data broadcasting and continuous broadcasting method

Info

Publication number: CN102238016A
Application number: CN2010101608016A
Authority: CN
Inventors: 费伟华
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2011-11-09

Abstract

The invention discloses a network data broadcasting and continuous broadcasting method, which relates to point-to-multipoint data transmission. In conventional network data transmission, redundant data is mostly transmitted. By the method, the transmission of the redundant data can be effectively reduced, network performance can be improved, and effects for the data transmission of multi-domain intervals are particularly remarkable. The method is applied in the fields of video on demand, Internet protocol televisions (IPTV), file transmission and the like.

Description

Network data broadcasting and lasting broadcasting method

Technical field

The present invention relates to carry out the transfer of data of single-point, especially carry out the transmission field of data, data flow, Media Stream by the internet to multiple spot by network.

More particularly, the present invention can not support to broadcast and the methodology of the enterprising line data broadcasting of network of multicast.The present invention can be widely used in fields such as IPTV, video request program, file download.To reduce the repeat transmission of data at the strange land routing node.

Background technology

Along with based on the recent technological advances in the Internet traffic, needs to bandwidth increase day by day, wherein major part all is redundant data (as file download, webpage, slotting, the instant Media Stream of medium point etc.), a large amount of equipment inputs, transformation and operation cost increase, energy resource consumption and a large amount of redundant datas causes to a certain extent, and a kind of demand that can effectively reduce the redundant transmission method is urgent day by day.

Summary of the invention

An object of the present invention is, can do not support to broadcast and the network of multicast in (not under the prerequisite to existing network and apparatus modifications setting or transformation), realize the transfer of data of data from the single-point to the multiple spot.

Present relatively multicasting technology advantage is, the data survival time that can continue after the transfer of data once, saves the later stage transmission cost.As the leak renewal of file transfer, system, webpage acceleration etc., only need transmission primaries, need not transmit in the time of qualification for the second time.And multicasting technology needs transmission repeatedly in the different time.In the point-to-point transmission advantage is, do not take up broadband.

This technology can effectively reduce the bandwidth occupancy of user to service end, and is particularly evident when particularly visiting the strange land network, can effectively reduce interregional import and export bandwidth.At least in a large number the use of servers.Littler to the dependence of route node in addition, information such as routing node Maintenance free multicast table, equipment performance requires lower, can reduce a large amount of energy resource consumptions.

Invention is expanded domain name analysis system (DNS) range of application.

Performing step following (with reference to Fig. 1):

1) first customer end A according to data configuration information to domain name resolution agent A (usually operator set up) request data package n (steps A 1) in the city, place.

2) parsing is acted on behalf of A to server requests packet n (steps A 2).

3) server return data bag n acts on behalf of A (steps A 3) to parsing.

4) parsing is acted on behalf of the A return data and is given customer end A (steps A 4).

5) the customer end A repeating step 1, all finishes receiving until all data.

For follow-up client, step is as follows:

1) customer end B according to data configuration information to domain name resolution agent A request data package n (step B1).

2) parsing is acted on behalf of A return data bag n and is given customer end B (step B2).

3) the customer end B repeating step 1, all finishes receiving until all data.

Wherein time to live (ttl) has been determined the time-to-live of data on network, and fixed-length data uses the longer time-to-live can effectively reduce transfer of data, realizes persistant data broadcasting.

Wherein request data package n can present in the domain name mode.(as: p1.download.com p2.download.com)

Description of drawings:

Fig. 1 realizes flow chart of steps of the present invention.

Fig. 2 is the concrete implementation step flow chart of of fixed-length data of the present invention.

Fig. 3 is the concrete implementation step flow chart of of flow data of the present invention.

Embodiment:

This method does not relate to concrete data structure agreement, below is a kind of possible execution mode:

Fixed-length data (with reference to accompanying drawing):

The fixed-length data configuration information comprises, data length, packet size.

The client request msg packet sequence that can walk abreast.

The file of one 600 byte, configuration information are length 600, packet size 400, and so, client should be asked two packets (being respectively 1.x.com 2.x.com, with type sky (NULL, code 10) mode request)

Flow data (with reference to accompanying drawing):

The flow data configuration information comprises: loopback size, packet size, bit rate.

The data flow of 1Mbps, time-to-live is when being 1 second, configuration information is loopback size 6000 (1.tv.com～6000.tv.com), (to resolve type is sky＜NULL to packet size 400, code 10〉the mode request), bit rate 1048576, client is request data package or sequence of data packet regularly, up to the loopback top (packet 6000), and then important from loopback bottom (packet 1).

Claims

1. a network data broadcasting reaches the lasting method of broadcasting, and described method comprises the steps:

With described data, be distributed to client by domain name analysis system with data packet form.Packet exists with the domain name form.

Fixed-length data: described fixed-length data is the set of one group of data of regular length.

Flow data: described flow data is the set of the uncertain one group of data of data total length.

Packet: described packet is that every group of data wherein were a packet after fixed-length data or flow data were divided into groups after according to the certain-length restriction.

2. method according to claim 1, wherein: the packet that can comprise zero or a plurality of configuration informations.

3. a system comprises and is suitable for carrying out the device that requires described method step according to right 1.

4. a computer program comprises when carrying out described computer program on computer system, carries out the instruction or the command sequence of step in accordance with the method for claim 1.