CN102137143A - Method for injecting content based on CDN (Content Delivery Network) as well as related devices and systems - Google Patents

Abstract

The embodiment of the present invention relates to the field of content distribution network, and discloses a content injection method based on content distribution network and related equipment and system. Wherein, a content injection method based on a content distribution network includes: the second media storage network element receives the content file list sent by the first media storage network element, and the content file list is received by the first media storage network element from the content providing device When the injected content is sent, the content file list is used by the second media storage network element to verify whether the content corresponding to the content file list is complete; the second media storage network element verifies whether the content stored by the first media storage network element is based on the above content file list Complete, if yes, copy the content from the first media storage network element and store it; if not, notify the content providing device to re-inject the content into the first media storage network element. The embodiment of the present invention can improve the security of the content injected by the content providing device.

Description

Content injection method and related equipment and system based on content distribution network

technical field

The present invention relates to the field of content distribution network, in particular to a content injection method based on content distribution network and related equipment and system.

Background technique

Content Delivery Network (CDN) is a new type of network construction method, which is characterized by the use of distributed caching technology to provide users with services such as video, audio, pictures, and documents nearby, which can greatly improve service quality, and Save network bandwidth resources.

Generally, CDN includes three types of network elements, namely media control (Media Control, MC) network elements, media storage (Media Storage, MS) network elements, and media switching (Media Switch, MX) network elements. In the CDN shown in Figure 1, the MS network element is used to store the content injected by the content provider device (ContentProvider, CP), and the MS allows the content provider device to directly inject content; the MC network element is used to implement content control and routing functions; the MX network element The element is used to implement the content exchange function, and is generally closer to the user terminal (User Equipment, UE), and directly provides content to the UE. Among them, each type of network element may have multiple entities, and form a cloud to provide external services.

Generally, in a CDN, at least two MSs will store the same content injected by the content providing device to achieve the purpose of disaster recovery and improve the reliability of content storage. Among them, MS supports content injection and content replication functions. The priority of content replication is generally low. In special scenarios (such as the large amount of data injected by the content provider device, poor network quality, etc.), it takes a long time from the completion of content injection to content replication. During this period, once Failure of MS1 will result in the loss of newly injected content, which will affect the satisfaction of the content providing equipment with the CDN.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a content injection method based on a content distribution network and related equipment and systems, which are used to improve the security of the content injected by the content providing equipment and improve the satisfaction of the content providing equipment to the CDN.

A content injection method based on a content distribution network, comprising:

The second media storage network element receives the content file list sent by the first media storage network element, the content file list is sent by the first media storage network element when receiving the content injected by the content providing device, the content file list Used for the second media storage network element to verify whether the content corresponding to the content file list is complete;

The second media storage network element verifies whether the content stored in the first media storage network element is complete according to the content file list, and if so, copies the content from the first media storage network element and stores it; if If not, notify the content providing device to re-inject content into the first media storage network element.

A content injection method based on a content distribution network, comprising:

The media control network element receives the content file list sent by the first media storage network element, the content file list is sent by the first media storage network element when receiving the content injected by the content providing device, and the content file list is used for The media control network element verifies whether the content corresponding to the content file list is complete;

The media control network element verifies whether the content stored in the first media storage network element is complete according to the content file list, and if so, notifies the second media storage network element to copy the content from the first media storage network element. and store the content; if not, notify the content providing device to re-inject the content into the first media storage network element.

A content distribution network-based media storage network element, including:

The receiving module is configured to receive the content file list sent by the first media storage network element, the content file list is sent by the first media storage network element when receiving the content injected by the content providing device, and the content file list is used To verify whether the content corresponding to the content file list is complete;

A verification module, configured to verify whether the content stored in the first media storage network element is complete according to the content file list;

a copy module, configured to copy and store the content from the first media storage network element when the verification result of the verification module is yes;

A notification module, configured to notify the content providing device to re-inject content into the first media storage network element when the verification result of the verification module is negative.

A content distribution network-based media control network element, including:

The receiving unit is configured to receive the content file list sent by the first media storage network element, the content file list is sent by the first media storage network element when receiving the content injected by the content providing device, and the content file list is used To verify whether the content corresponding to the content file list is complete;

A verification unit, configured to verify whether the content stored in the first media storage network element is complete according to the content file list;

A first notification unit, configured to notify a second media storage network element to copy and store the content from the first media storage network element when the verification result of the verification unit is yes;

The second notification unit is configured to notify the content providing device to re-inject content into the first media storage network element when the verification result of the verification unit is negative.

A content injection system based on a content distribution network, comprising:

a first media storage network element, a second media storage network element and a content providing device;

The content providing device is configured to inject content into the first media storage network element;

The first media storage network element is configured to receive the content injected by the content providing device, and send a content file list to the second media storage network element, and the content file list is used in the second media storage network meta-verify whether the content corresponding to the content file list is complete;

The second media storage network element is configured to receive the content file list sent by the first media storage network element, and verify whether the content stored in the first media storage network element is complete according to the content file list, and if so, then Copy and store the content from the first media storage network element; if not, notify the content providing device to re-inject the content into the first media storage network element.

A content injection system based on a content distribution network, comprising:

a first media storage network element, a second media storage network element, a content providing device and a media control network element;

The content providing device is configured to inject content into the first media storage network element;

The first media storage network element is configured to receive the content injected by the content providing device, and send a content file list to the media control network element, and the content file list is used by the media control network element to verify the Whether the content corresponding to the content file list is complete;

The media control network element is configured to receive the content file list sent by the first media storage network element, and verify whether the content stored in the first media storage network element is complete according to the content file list, and if so, notify the The second media storage network element copies the content from the first media storage network element and stores it; if not, notifies the content providing device to re-inject the content into the first media storage network element;

The second media storage network element is configured to copy and store the content from the first media storage network element according to the notification of the media control network element.

In the embodiment of the present invention, after the second media storage network element receives the content file list sent by the first media storage network element, it can verify whether the content stored by the first media storage network element is complete according to the content file list, and if so, then from The content is copied and stored in the first media storage network element; otherwise, the content providing device is notified to re-inject the content into the first media storage network element; in addition, in the embodiment of the present invention, the media control network element can also receive the first media storage network element The content file list sent, and the content file list to verify whether the content stored in the first media storage network element is complete, if yes, notify the second media storage network element to copy the content from the first media storage network element and store it; otherwise, notify The content providing device re-injects the content into the first media storage network element; thus, the embodiments of the present invention can improve the security of content injected by the content providing device, and improve the content providing device's satisfaction with the CDN.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of an existing CDN;

FIG. 2 is a schematic flow diagram of an existing CDN-based content injection method;

FIG. 3 is a schematic flowchart of an embodiment of a CDN-based content injection method provided in an embodiment of the present invention;

FIG. 4 is a schematic flowchart of another embodiment of a CDN-based content injection method provided in an embodiment of the present invention;

FIG. 5 is a schematic flowchart of another embodiment of a CDN-based content injection method provided in the embodiment of the present invention;

FIG. 6 is a schematic flowchart of another embodiment of a CDN-based content injection method provided in the embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a CDN-based MS network element provided in an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another CDN-based MS network element provided in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a CDN-based MC network element provided in an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another CDN-based MC network element provided in an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a CDN-based content injection system provided in an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another CDN-based content injection system provided in an embodiment of the present invention.

Detailed ways

The embodiment of the present invention provides a CDN-based content injection method and related equipment and system, which are used to improve the security of the content injected by the content providing equipment and improve the satisfaction of the content providing equipment to the CDN.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Before introducing the CDN-based content injection method and related equipment and systems provided by the embodiments of the present invention, first introduce the existing CDN-based content injection method. Please refer to FIG. 2 . FIG. 2 is a schematic flowchart of an existing CDN-based content injection method. In the content injection method shown in Figure 2, in step 201, the MS1 network element receives the content injected by the content providing device, and returns a successful response to the content providing device after the injection is completed; in step 202, the newly injected content is sent by the MS1 network element The content is copied to the MS2 network element, or the MS2 network element actively copies the newly injected content to the MS1 network element, so as to improve the reliability of content storage.

In the above method, since the priority of content replication is generally low, in the case of a large amount of data injected by the content provider device or poor network quality, it takes a long time from the completion of content injection to content replication. During this period, Once the MS1 network element fails, the above method will cause the loss of the newly injected content, which will affect the satisfaction of the content providing equipment to the CDN.

Embodiment one:

Please refer to FIG. 3 . FIG. 3 is a schematic flowchart of a CDN-based content injection method provided by Embodiment 1 of the present invention. Wherein, the content injection method may include the following steps:

301. The second MS network element receives the content file list sent by the first MS network element, wherein the content file list is sent by the first MS network element when receiving the content injected by the content providing device, and the content file list is used by the first MS network element 2. The MS network element verifies whether the content corresponding to the content file list is complete;

In this embodiment, the content injected by the content providing device may be video, audio, picture, document and so on.

In this embodiment, in order to verify whether the content is complete, the above-mentioned content file list needs to include at least the content name, content size and content type. Of course, the above-mentioned content file list may also include other information. For example, when the content injected by the content injection device is a video, in order to verify whether the video is complete, the above-mentioned content file list may also include the video codec type of the content, the video codec of the content frame rate and more.

Wherein, the above content file list may be injected into the first MS network element by the content providing device. In one embodiment, the content providing device may inject the above-mentioned content file list and content together into the first MS network element, and then the first MS network element sends the above-mentioned content file list to the second MS network element; another embodiment , the content providing device may first inject the above-mentioned content file list into the first MS network element, and then inject the content into the first MS network element, and the first MS network element sends the above-mentioned content file list to the second MS network element ; Or the content providing device can first inject the content into the first MS network element, and then inject the above-mentioned content file list into the first MS network element, and send the above-mentioned content file list to the second MS network element by the first MS network element .

For a content providing device, after generating a certain content, it can receive information input by the user for verifying whether the content is complete (such as content name, content size, content type, etc.), and then generate a similar The content file list based on the configuration file list, and store the corresponding relationship between the content and the generated content file list.

Wherein, the above-mentioned content file list may also be generated by the first MS network element after receiving the content injected by the content providing device, and sent to the second MS network element, which is not limited in the embodiment of the present invention.

For the first MS network element, after receiving the content injected by the content providing device, it can receive the information (such as content name, content size and content type, etc.) input by the user for verifying whether the content is complete, and then according to The information input by the user automatically generates a content file list similar to the configuration file list, and stores the corresponding relationship between the content and the generated content file list.

In order to facilitate understanding of the content file list mentioned in the embodiment of the present invention, an example is given below for illustration.

Example 1: Assuming that the content generated by the content providing device is the movie "AAA", the content providing device can receive the information input by the user to verify whether the movie "AAA" is complete, for example, the information input by the user to verify whether the movie "AAA" is complete The information can include: the name of the movie "AAA", the size of the movie "AAA" (generally refers to how many Mbit or Gbit), and the type of the movie "AAA", etc., and then automatically generate a list of content files similar to the list of configuration files according to the information entered by the user , and store the corresponding relationship between the movie "AAA" and the generated content file list. Wherein, the list of content files generated by the content providing device may be as shown in Table 1:

name AAA Starring: XXX Production company: XXX type: action, thriller, sci-fi, adventure Production area: XXX Length: 162 minutes Director: XXX imdb encoding: tt0499549 Screenwriter: XXX release time: January 4, 2010 Producer: XXX File size 3.9G File extension AVI Video codec type H.264 video bitrate 2MGPS ... ...

Table 1

Among them, the content file list described in Table 1 also includes the production company, production area, director, screenwriter and file suffix, video bit rate, and video codec type input by the user to verify whether the movie "AAA" is complete. and other information. Table 1 is only a specific example listed for the convenience of understanding the list of content files mentioned in the embodiments of the present invention. Those skilled in the art should understand that in order to verify whether the movie "AAA" generated by the content providing device is complete, as shown in Table 1 The list of content files can also contain other information, such as readability and so on. In the embodiment of the present invention, the content file list used to verify whether the content is complete needs to include at least the content name, content size, and content type; the embodiment of the present invention does not limit the types of other information further included in the content file list.

Example 2: Assuming that the content that the content providing device injects into the first MS network element is the song "BBB", after the first MS network element receives the song "BBB" injected by the content providing device, it can receive the song "BBB" input by the user for verification. Information on whether BBB is complete, for example, the information input by the user to verify whether the song "BBB" is complete may include: the name of the song "BBB", the size of the song "BBB" (generally how many Mbits) and the type of the song "BBB", etc. , and then automatically generate a content file list similar to the configuration file list according to the information input by the user, and store the corresponding relationship between the song "BBB" and the generated content file list. Wherein, the list of content files generated by the content providing device may be as shown in Table 2:

name BBB singer: XXX Production company: XXX type: rock and roll Language: XXX File size 5.9M File extension MP3 ... ...

Table 2

Wherein, Table 2 is only a specific example listed for the convenience of understanding the list of content files mentioned in the embodiments of the present invention. Those skilled in the art should understand that in order to verify whether the song "BBB" generated by the content providing device is complete, Table 2 The shown content file list may also contain other information for verifying whether the song "BBB" is complete, such as readability and so on.

302. The second MS network element verifies whether the content stored in the first MS network element is complete according to the above content file list, if yes, copy the content from the first MS network element and store it; if not, notify the content providing device to re-inject the content to the first MS network element.

In an optional implementation manner, the second MS network element verifies whether the content stored in the first MS network element is complete according to the above content file list may be:

A. The second MS network element sends a verification request message to the first MS network element;

B. The second MS network element receives the second content file list sent by the first MS network element, wherein the second content file list is generated by the first MS network element according to the currently stored content after receiving the above-mentioned verification request message;

C. The second MS network element verifies whether the above-mentioned content file list is the same as the second content file list, and if so, confirms that the content stored in the first MS network element is complete; if not, then confirms that the content stored in the first MS network element is not whole.

Using the above example to illustrate, assume that the content that the content providing device injects into the first MS network element is the movie "AAA", and the content that the content providing device injects into the first MS network element or that the first MS network element generates for verification of the movie "AAA" Whether the complete content file list can be as shown in Table 1, the first MS network element sends the content file list shown in Table 1 to the second MS network element; the second MS network element sends a verification request message to the first MS Network element, after receiving the verification request message sent by the second MS network element, the first MS network element generates a second content file list according to the currently stored content, and sends it to the second MS network element; the second MS network element verification table Whether the content file list shown in 1 is the same as the second content file list, if yes, confirm that the content stored in the first MS network element is complete; if not, confirm that the content stored in the first MS network element is incomplete. For example, if the information used to verify whether the movie "AAA" is complete in the content file list shown in Table 1 verified by the second MS network element is exactly the same as the information used to verify whether the movie "AAA" is complete in the second content file list , it means that the movie "AAA" stored by the first MS network element is complete, and the second MS network element can copy and store the movie "AAA" from the first MS network element; otherwise, if the second MS network element verifies the movie "AAA" If one or more of the information used to verify whether the movie "AAA" is complete in the displayed content file list is different from the information used to verify whether the movie "AAA" is complete in the second content file list, it means that the first MS network element The stored movie "AAA" is incomplete (abnormality may cause incompleteness), and the content providing device needs to be notified to re-inject the movie "AAA" into the first MS network element.

Wherein, if the second MS network element verifies that the information used to verify whether the movie "AAA" is complete in the content file list shown in Table 1 and the information used to verify whether the movie "AAA" is complete in the second content file list have one or If multiple items are different, it means that the movie "AAA" stored by the first MS network element is incomplete. Because after the content file list shown in Table 1 is generated, the information used to verify whether the movie "AAA" is complete is fixed, if there is an item of information used to verify whether the movie "AAA" is complete in the second content file list If one or more pieces of information are different from the information shown in Table 1, it can only indicate that the movie "AAA" sent an exception, resulting in the incompleteness of the movie "AAA".

In the embodiment of the present invention, the second MS network element can sequentially read each item of information in the content file list shown in Table 1, and sequentially compare each item of information read with the corresponding information in the second content file list If the comparison results are the same, it means that the content stored in the first MS network element is complete, and the second MS network element can copy and store the content from the first MS network element; otherwise, if the comparison results are different, then It means that the content stored in the first MS network element is incomplete, and the second MS network element may notify the content providing device to re-inject the content into the first MS network element.

In special scenarios, such as a large amount of data injected by the content provider device, poor network quality, etc., it will take a long time for the second MS network element to copy the content from the first MS network element, so such a situation may occur The situation, that is, the second MS network element verifies that the content stored in the first MS network element is complete before copying the content according to the content file list, but when the second MS network element starts to copy the content or in the process of copying the content, the first MS network element The content stored in the MS network element is abnormal, resulting in incomplete content stored in the first MS network element. In this case, in order to further improve the security of content storage, after the second MS network element copies and stores the content from the first MS network element, it should also verify the copy and store from the first MS network element according to the content file list Whether the content of the content is complete, if yes, keep storing the copied content from the first MS network element; if not, notify the content providing device to re-inject the content into the first MS network element.

In the embodiment of the present invention, when the second MS network element verifies that the content stored in the first MS network element is complete, it can take the initiative to copy and store the content in the first MS network element; it can also notify the first MS network element, and the first MS network element The MS network element copies the content and sends it to the second MS network element for storage.

In the embodiment of the present invention, the second MS network element may use any of the following methods to notify the content providing device to re-inject content into the first MS network element:

Mode 1: the second MS network element sends a notification message to the content providing device, and the notification message is used to instruct the content providing device to re-inject content into the first MS network element;

Mode 2: The second MS network element sends a notification message to the first MS network element, where the notification message is used to instruct the first MS network element to notify the content providing device to re-inject the content.

Wherein, the second MS network element or the first MS network element can interact with the content providing device through the Internet, which is common knowledge in the field, and will not be described in this embodiment of the present invention.

In the above-mentioned embodiment, the second MS network element can verify the first MS network element according to the content file list during the period when the content of the content providing device is successfully injected into the first MS network element and the second MS network element starts copying content from the first MS network element. Whether the content stored in the MS network element is complete, if yes, copy the content from the first MS network element and store it; otherwise, notify the content providing device to re-inject the content into the first MS network element; thus, the injection of the content providing device can be improved. The security of content improves the satisfaction of content providing equipment with CDN.

In addition, in the content injection method provided by the embodiment of the present invention, the content providing device can start the next content injection task after the content is successfully injected into the first MS network element, without waiting for the second MS network element to receive from the first MS network element. After copying the content, start the next content injection task. Since content duplication takes a relatively long time, and the priority of the content duplication task is generally low, if the content providing device starts the next content injection after the second MS network element duplicates the content from the first MS network element task, it will reduce the efficiency of the content providing device to inject content. Therefore, the content injection method provided by the embodiment of the present invention can improve the efficiency of the content providing device injecting content into the first MS network element, and improve the customer satisfaction of the content providing device.

In addition, in the content injection method provided by the embodiment of the present invention, it is only necessary to expose one MS to inject content to the content providing device, instead of exposing multiple MS network elements to inject content to the content providing device at the same time. For the content providing device, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Embodiment two:

Please refer to FIG. 4 . FIG. 4 is a schematic flowchart of a CDN-based content injection method provided in Embodiment 2 of the present invention. Wherein, the content injection method may include the following steps:

401. The content providing device acquires the address of the first MS network element, and injects content into the first MS network element;

In the embodiment of the present invention, the content injected by the content providing device may be video, audio, picture, document and so on.

402. When the first MS network element receives the content injected by the content providing device, send the content file list to the second MS network element, wherein the content file list is used by the second MS network element to verify whether the content corresponding to the content file list is complete ;

Wherein, the above-mentioned content file list may be injected into the first MS network element by the content providing device, or may be generated by the first MS network element after receiving the content injected by the content providing device.

Wherein, the above-mentioned content file list has been illustrated in the above-mentioned first embodiment, and will not be repeated in this embodiment.

403. The second MS network element receives the content file list sent by the first MS network element, and verifies whether the content stored in the first MS network element is complete according to the above content file list, if yes, execute step 404; if not, execute step 405 ;

Wherein, the implementation manner of the second MS network element verifying whether the content stored in the first MS network element is complete according to the above content file list has been introduced in detail in the first embodiment above, and will not be repeated in this embodiment.

404. The second MS network element copies and stores the content from the first MS network element;

In the embodiment of the present invention, when the second MS network element verifies that the content stored in the first MS network element is complete, it can take the initiative to copy and store the content in the first MS network element; it can also notify the first MS network element, and the first MS network element The MS network element copies the content and sends it to the second MS network element for storage.

As an optional implementation manner, after the second MS network element copies and stores the content from the first MS network element, it may delete the content file list sent by the first MS network element.

405. The second MS network element notifies the content providing device to re-inject content into the first MS network element.

Among them, when it is verified that the content stored in the first MS network element is incomplete, it is first necessary to restore the content stored in the first MS network element, and then the second MS network element performs content copying and storage, so as to ensure maximum The content copied and stored by the second MS network element is normal.

In this embodiment, the above-mentioned step 404 and step 405 are parallel, and there is no restriction on the sequence.

In this embodiment of the present invention, the second MS network element may use any of the methods described in Embodiment 1 to notify the content providing device to re-inject content into the first MS network element.

As an optional implementation manner, if there is a third MS network element, and the third MS network element pre-stores the same content injected by the content providing device, the second MS network element When the stored content is incomplete, the first MS network element can be preferentially notified to restore the same content injected by the content providing device from the third MS network element. If the first MS network element fails to restore the content from the third MS network element, then The second MS network element may notify the content providing device to re-inject content into the first MS network element.

In the embodiment of the present invention, in order to further improve the security of content storage, after the second MS network element copies and stores the content from the first MS network element, it further verifies the contents copied and stored from the first MS network element according to the content file list. Whether the content is complete, if so, keep storing the content copied from the first MS network element; if not, notify the content providing device to re-inject the content into the first MS network element, and further, the second MS network element can delete the stored inconsistent content.

In CDN, in order to ensure the reliability of content storage, the same content injected by the content providing device is generally stored in multiple MS network elements, but due to the lag of copying content, it may cause multiple MS network elements to store Therefore, the MC network element needs to verify whether the same content injected by the content providing device stored in multiple MS network elements is consistent (the verification can be initiated periodically or manually at any time). Inconsistent, notify the MS network element with inconsistent stored content to start a copy or delete process, so as to ensure that the identification information of the stored content is consistent.

In CND, when an MX network element accesses an MS network element, if the content injected by the content providing device cannot be found, it should go to other MS network elements to continue searching.

In the second embodiment, the second MS network element can verify whether the content stored in the first MS network element is complete according to the content file list, and if so, it can copy the content from the first MS network element and store it; The device re-injects the content to the first MS network element; thus, the security of the content injected by the content providing device can be improved, and the content providing device's satisfaction with the CDN can be improved. In addition, the content injection method provided by the embodiment of the present invention can improve the efficiency of the content providing device injecting content into the first MS network element. For the content providing device, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Embodiment three:

Please refer to FIG. 5 . FIG. 5 is a schematic flowchart of another CDN-based content injection method provided by Embodiment 3 of the present invention. Wherein, the content injection method may include the following steps:

501. The MC network element receives the content file list sent by the first MS network element, wherein the content file list is sent by the first MS network element when receiving the content injected by the content providing device, and the content file list is used by the MC network element Verify that the content corresponding to the content file list is complete;

Wherein, the above-mentioned content file list may be injected into the first MS network element by the content providing device, and then the above-mentioned content file list is sent to the MC network element by the first MS network element; or the above-mentioned content file list may also be provided by the first MS network element. After receiving the content injected by the content providing device, the network element generates it by itself, and sends it to the MC network element, which is not limited in the embodiment of the present invention.

Wherein, the above-mentioned content file list has been illustrated in the above-mentioned first embodiment, and will not be repeated in this embodiment.

502. The MC network element verifies whether the content stored in the first MS network element is complete according to the above content file list, and if so, notifies the second MS network element to copy and store the content from the first MS network element; if not, notifies the content provider The device re-injects content into the first MS network element.

As an optional implementation manner, the MC network element verifies whether the content stored in the first MS network element is complete according to the above content file list may be:

A. The MC network element sends a verification request message to the first MS network element;

B. The MC network element receives the second content file list sent by the first MS network element, and the second content file list is generated by the first MS network element according to the stored content after receiving the verification request message;

C. The MC network element verifies whether the above-mentioned content file list is the same as the second content file list, and if so, confirms that the content stored in the first MS network element is complete; if not, then confirms that the content stored in the first MS network element is incomplete.

In the embodiment of the present invention, in order to further improve the security of content storage, after the second MS network element copies and stores the content from the first MS network element, the MC network element should also verify the second MS network element according to the above content file list Whether the content copied and stored from the first MS network element is complete, if so, notify the second MS network element to keep storing the content copied from the first MS network element; if not, then notify the content providing device to re-inject the content into the first MS network element An MS network element.

In the embodiment of the present invention, the MC network element may use any of the following methods to notify the content providing device to re-inject content into the first MS network element:

Mode 1: The MC network element sends a notification message to the content providing device, and the notification message is used to instruct the content providing device to re-inject content into the first MS network element;

Mode 2: The MC network element sends a notification message to the first MS network element, and the notification message is used to instruct the first MS network element to notify the content providing device to re-inject the content.

In the embodiment of the present invention, the MC network element can verify and verify the first MS network element according to the content file list during the period from the time when the content of the content providing device is successfully injected into the first MS network element and the second MS network element starts copying content from the first MS network element. Whether the content stored in the MS network element is complete, if so, notify the second MS network element to copy the content from the first MS network element and store it; otherwise, notify the content providing device to re-inject the content into the first MS network element; thus, it can improve The security of the content injected by the content providing device improves the satisfaction of the content providing device to the CDN. In addition, the content injection method provided by the embodiment of the present invention can improve the efficiency of the content providing device injecting content into the first MS network element. For the content providing device, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Embodiment four:

Please refer to FIG. 6 . FIG. 6 is a schematic flowchart of another CDN-based content injection method provided by Embodiment 4 of the present invention. Wherein, the content injection method may include the following steps:

601. The content providing device obtains the address of the first MS network element, and injects content into the first MS network element;

In the embodiment of the present invention, the content injected by the content providing device may be video, audio, picture, document and so on.

602. When the first MS network element receives the content injected by the content providing device, send the content file list to the MC network element, where the content file list is used by the MC network element to verify whether the content corresponding to the content file list is complete;

Wherein, the above-mentioned content file list may be injected into the first MS network element by the content providing device, or may be generated by the first MS network element after receiving the content injected by the content providing device.

Wherein, the above-mentioned content file list has been illustrated in the above-mentioned first embodiment, and will not be repeated in this embodiment.

603. The MC network element receives the content file list sent by the first MS network element, and verifies whether the content stored in the first MS network element is complete according to the above-mentioned content file list, and if so, executes step 604; if not, executes 605;

Wherein, the implementation manner of the MC network element verifying whether the content stored in the first MS network element is complete according to the content file list has been introduced in detail in the third embodiment above, and will not be repeated in this embodiment.

604. Notify the second MS network element to copy and store the content from the first MS network element;

In the embodiment of the present invention, after the MC network element verifies that the content stored in the first MS network element is complete, it can notify the second MS network element, so that the second MS network element can actively copy and store the content in the first MS network element. ; Or the second MS network element can be made to notify the first MS network element, and the first MS network element copies the content and sends it to the second MS network element for storage.

As an optional implementation manner, after the second MS network element copies and stores the content from the first MS network element, the MC network element may delete the content file list sent by the first MS network element.

605. The MC network element notifies the content providing device to re-inject the content into the first MS network element.

Among them, when it is verified that the content stored in the first MS network element is incomplete, the MC network element first needs to restore the content stored in the first MS network element, and then the MC network element notifies the second MS network element to copy and store the content , so as to ensure that the content copied and stored by the second MS network element is normal to the greatest extent.

In this embodiment, the above-mentioned step 604 and step 605 are parallel, and there is no restriction on the sequence.

In the embodiment of the present invention, the MC network element may use any of the methods described in Embodiment 3 to notify the content providing device to re-inject the content into the first MS network element.

As an optional implementation manner, if there is a third MS network element, and the third MS network element pre-stores the same content injected by the content providing device, the MC network element verifies the content stored in the first MS network element When the content is incomplete, the first MS network element can be notified first to restore the same content injected by the content providing device from the third MS network element. If the first MS network element fails to restore the content from the third MS network element, the MC network element The element may notify the content providing device to re-inject the content into the first MS network element.

In the embodiment of the present invention, in order to further improve the security of content storage, after the second MS network element copies the content from the first MS network element and stores it, the MC network element further verifies the second MS network element according to the above-mentioned content file list Whether the content copied and stored from the first MS network element is complete, if so, notify the second MS network element to keep storing the content copied from the first MS network element; if not, then the MC network element notifies the content providing device to re-inject The content is sent to the first MS network element, and further, the MC network element may notify the second MS network element to delete the stored inconsistent content.

In CDN, in order to ensure the reliability of content storage, the same content injected by the content providing device is generally stored in multiple MS network elements, but due to the lag of copying content, it may cause multiple MS network elements to store Therefore, the MC network element needs to verify whether the same content injected by the content providing device stored in multiple MS network elements is consistent (the verification can be initiated periodically or manually at any time). Inconsistent, notify the MS network element with inconsistent stored content to start the copy or delete process to ensure consistent stored content.

In CND, when an MX network element accesses an MS network element, if the content injected by the content providing device cannot be found, it should go to other MSs to continue searching.

In this embodiment, the MC network element can verify whether the content stored in the first MS network element is Complete, if yes, then notify the second MS network element to copy the content from the first MS network element and store it; otherwise, notify the content providing device to re-inject the content into the first MS network element; thereby, the content providing device can be improved. Security, improve the satisfaction of content providing equipment with CDN. In addition, the content injection method provided by the embodiment of the present invention can improve the efficiency of the content providing device injecting content into the first MS network element. For the content providing device, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Embodiment five:

Please refer to FIG. 7 . FIG. 7 is a schematic structural diagram of a CDN-based MS network element provided by Embodiment 5 of the present invention. Wherein, the MS network element may include:

The receiving module 701 is configured to receive the content file list sent by the first MS network element, wherein the content file list is sent by the first MS network element when receiving the content injected by the content providing device, and the content file list is used to verify the Whether the content corresponding to the above content file list is complete;

In the embodiment of the present invention, the content injected by the content providing device may be video, audio, picture, document and so on.

Wherein, the above-mentioned content file list has been illustrated in the above-mentioned first embodiment, and will not be repeated in this embodiment.

A verification module 702, configured to verify whether the content stored in the first MS network element is complete according to the content file list;

A copying module 703, configured to copy and store the content from the first MS network element when the verification result of the verification module 702 is yes;

The notification module 704 is configured to notify the content providing device to re-inject content into the first MS network element when the verification result of the verification module 702 is negative.

In the embodiment of the present invention, in order to further improve the security of content storage, the verification module 702 is also used to verify the content from the first MS network element according to the above content file list after the copy module 703 copies the content from the first MS network element and stores it. Whether the content copied and stored in the website is complete;

Correspondingly, the copying module 703 is also configured to keep storing the copied content from the first MS network element when the verification module 702 verifies that the copied and stored content from the first MS network element is complete;

Correspondingly, the notification module 704 is further configured to notify the content providing device to re-inject content into the first MS network element when the verification module 702 verifies that the copied and stored content from the first MS network element is incomplete.

In the embodiment of the present invention, the notification module 704 is specifically configured to send a notification message to the content providing device, wherein the notification message is used to instruct the content providing device to re-inject content into the first MS network element; or specifically used to send a notification message to the first MS network element. The element sends a notification message, where the notification message is used to instruct the first MS network element to notify the content providing device to re-inject the content.

Please refer to FIG. 8 . FIG. 8 is a schematic structural diagram of another CDN-based MS network element provided by Embodiment 5 of the present invention. Wherein, the verification module 702 may include:

The first submodule 7021 is configured to send a verification request message to the first MS network element, and receive a second content file list sent by the first MS network element; wherein, the second content file list is received by the first MS network element Generated according to the stored content after receiving the above verification request message;

The second submodule 7022 is used to verify whether the above-mentioned content file list is the same as the second content file list, if yes, then confirm that the content stored in the first MS network element is complete; if not, then confirm that the content stored in the first MS network element is not whole.

As shown in FIG. 8, the copy module 703 is configured to copy and store the content from the first MS network element when the verification result of the second sub-module 7022 is yes;

As shown in FIG. 8, the notification module 704 is configured to notify the content providing device to re-inject the content into the first MS network element when the verification result of the second sub-module 7022 is negative.

In this embodiment, the MS network element can verify whether the content stored in the first MS network element is complete according to the content file list between the time when the content of the content providing device is successfully injected into the first MS network element and the content is copied. The content can be copied from the first MS network element and stored; otherwise, the content providing device will be notified to re-inject the content into the first MS network element; thus, the security of the content injected by the content providing device can be improved, and the satisfaction of the content providing device to the CDN can be improved. Spend. In addition, the embodiments of the present invention can improve the efficiency of injecting content into the first MS network element by the content providing device. For the content providing device, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Embodiment six:

Please refer to FIG. 9 . FIG. 9 is a schematic structural diagram of a CDN-based MC network element provided by Embodiment 6 of the present invention. Wherein, the MC network element may include:

The receiving unit 901 is configured to receive a content file list sent by the first MS network element, wherein the content file list is sent by the first MS network element when receiving the content injected by the CP, and the content file list is used to verify the content Whether the content corresponding to the file list is complete;

In the embodiment of the present invention, the content injected by the content providing device may be video, audio, picture, document and so on.

Wherein, the above-mentioned content file list has been illustrated in the above-mentioned first embodiment, and will not be repeated in this embodiment.

A verification unit 902, configured to verify whether the content stored in the first MS network element is complete according to the above content file list;

The first notification unit 903 is configured to notify the second MS network element to copy and store the content from the first MS network element when the verification result of the verification unit 902 is yes;

The second notification unit 904 is configured to notify the content providing device to re-inject the content into the first MS network element when the verification result of the verification unit 902 is negative.

In the embodiment of the present invention, in order to further improve the security of content storage, the verification unit 902 is also used to verify the content of the second MS according to the above-mentioned content file list after the second MS network element copies the content from the first MS network element and stores it. Whether the content copied and stored by the network element from the first MS network element is complete;

Correspondingly, the first notification unit 903 is further configured to notify the second MS network element to keep storing the contents copied from the first MS network element when the verification unit 902 verifies that the content copied and stored by the second MS network element from the first MS network element is complete. the content copied in the meta;

Correspondingly, the second notification unit 904 is also configured to notify the content providing device to re-inject the content into the first MS network when the verification unit 902 verifies that the content copied and stored by the second MS network element from the first MS network element is incomplete. Yuan.

In the embodiment of the present invention, the second notification unit 904 is specifically configured to send a notification message to the content providing device, and the notification message is used to instruct the content providing device to re-inject content into the first MS network element; The element sends a notification message, where the notification message is used to instruct the first MS network element to notify the content providing device to re-inject the content.

Please refer to FIG. 10 . FIG. 10 is a schematic structural diagram of another CDN-based MC network element provided by Embodiment 5 of the present invention. Wherein, the verification unit 902 may include:

The first subunit 9021 is configured to send a verification request message to the first MS network element, and receive a second content file list sent by the first MS network element; wherein, the second content file list is received by the first MS network element Generated according to the stored content after receiving the above verification request message;

The second subunit 9022 is used to verify whether the above content file list is the same as the second content file list, if yes, then confirm that the content stored in the first MS network element is complete; if not, then confirm that the content stored in the first MS network element is not whole.

As shown in FIG. 10 , the first notification unit 903 is configured to notify the second MS network element to copy and store content from the first MS network element when the verification result of the second subunit 9022 is yes.

As shown in FIG. 10 , the second notification module 904 is configured to notify the content providing device to re-inject content into the first MS network element when the verification result of the second subunit 9022 is negative.

In this embodiment, the MC network element can verify whether the content stored in the first MS network element is complete according to the content file list between the time when the content of the content providing device is successfully injected into the first MS network element and the second MS network element starts to copy the content. , if yes, then notify the second MS network element to copy the content from the first MS network element and store it; otherwise, notify the content providing device to re-inject the content into the first MS network element; thus, the security of the content providing device injecting content can be improved performance, and improve the satisfaction of content providing equipment with CDN. In addition, the embodiments of the present invention can improve the efficiency of injecting content into the first MS network element by the content providing device. For the content providing device, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Embodiment seven:

Please refer to FIG. 11 . FIG. 11 is a schematic structural diagram of a CDN-based content injection system provided by Embodiment 7 of the present invention. Wherein, the content injection system may include:

The first MS network element 1101, the second MS network element 1102 and the content providing device 1103;

Wherein, the content providing device 1103 is used to inject content into the first MS network element 1101;

Wherein, the first MS network element 1101 is used to receive the content injected by the content providing device 1103, and send the content file list to the second MS network element 1102, and the content file list is used for the second MS network element 1102 to verify the corresponding Whether the content is complete;

In the embodiment of the present invention, the content injected by the content providing device 113 may be video, audio, picture, document and so on.

Wherein, the above-mentioned content file list has been illustrated in the above-mentioned first embodiment, and will not be repeated in this embodiment.

Wherein, the second MS network element 1102 is used to receive the content file list sent by the first MS network element 1101, and verify whether the content stored in the first MS network element 1101 is complete according to the content file list, and if so, from the first MS network element Copy and store the content in 1101; if not, notify the content providing device 1103 to re-inject the content into the first MS network element 1101.

In the embodiment of the present invention, in order to further improve the security of content storage, after the second MS network element 1102 copies the content from the first MS network element 1101 and stores it, it is also used to verify the contents from the first MS network element according to the above content file list. Whether the content copied and stored in 1101 is complete, if yes, keep storing the content copied from the first MS network element 1101;

In this embodiment, the second MS network element 1102 can verify the first MS network element according to the content file list during the period from the content providing device 1103 successfully injecting the content into the first MS network element 1101 to the second MS network element 1102 starting to copy the content 1101 Whether the stored content is complete, if so, copy the content from the first MS network element 1101 and store it; otherwise, notify the content providing device 1103 to re-inject the content into the first MS network element 1101; thus, the content providing device can be improved. 1103 Injecting the security of the content, improving the content providing device 1103's satisfaction with the CDN. In addition, the embodiment of the present invention can improve the efficiency of the content providing device 1103 injecting content to the first MS network element 1101 . For the content providing device, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Embodiment eight:

Please refer to FIG. 12 . FIG. 12 is a schematic structural diagram of a CDN-based content injection system provided by Embodiment 8 of the present invention. Wherein, the content injection system may include:

The first MS network element 1201, the second MS network element 1202, the content providing device 1203 and the MC network element 1204;

Wherein, the content providing device 1203 is used to inject content into the first MS network element 1201;

Wherein, the first MS network element 1201 is configured to receive the content injected by the content providing device 1203, and send the content file list to the MC network element 1204, and the content file list is used by the MC network element 1204 to verify whether the content corresponding to the content file list is complete;

In the embodiment of the present invention, the content injected by the content providing device 1203 may be video, audio, picture, document and so on.

Wherein, the above-mentioned content file list has been illustrated in the above-mentioned first embodiment, and will not be repeated in this embodiment.

Among them, the MC network element 1204 is used to receive the content file list sent by the first MS network element 1201, and verify whether the content stored in the first MS network element 1201 is complete according to the above content file list, and if so, notify the second MS network element 1202 Copy and store the content from the first MS network element 1201; if not, notify the content providing device 1203 to re-inject the content into the first MS network element 1201;

Wherein, the second MS network element 1202 is configured to copy and store the content from the first MS network element 1201 according to the notification of the MC network element 1204 .

In the embodiment of the present invention, in order to further improve the security of content storage, the MC network element 1204 is also used to verify the content of the second MS network element 1202 according to the content file list after the second MS network element 1202 copies the content from the first MS network element 1201 and stores it. Whether the content copied and stored by the second MS network element 1202 from the first MS network element 1201 is complete, if so, notify the second MS network element 1202 to keep storing the content copied from the first MS network element 1201; if not, then notify The content providing device 1203 re-injects content to the first MS network element 1201 .

In this embodiment, the MC network element 1204 can verify the contents stored in the first MS network element 1201 according to the content file list during the period from the content providing device 1203 successfully injecting the content into the first MS network element 1201 to the second MS network element 1202 starting to copy the content. If the content is complete, then notify the second MS network element 1202 to copy and store the content from the first MS network element 1201; otherwise, notify the content providing device 1203 to re-inject the content into the first MS network element 1201; thus, Improve the security of content injected by the content providing device 1203, and improve the content providing device 1203's satisfaction with the CDN. In addition, the embodiment of the present invention can improve the efficiency of the content providing device 1203 injecting content to the first MS network element 1201 . For the content providing device 1203, there is no need to start multiple content injection tasks for the same content at the same time, and it is not necessary to maintain the content of multiple MSs at the same time, which reduces the difficulty of content management.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the Including the steps of the foregoing method embodiments; and the aforementioned storage medium includes: U disk, read-only memory (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), magnetic disk or optical disk, etc. A medium that stores program code.

The content injection method based on the content distribution network provided in the embodiment of the present invention and related equipment and systems have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The above embodiments The description is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary , the contents of this specification should not be construed as limiting the present invention.

Claims (23)

1. the content method for implanting of a content-based distributing network is characterized in that, comprising:

The second media store network element receives the content file list that the first media store network element sends, described content file list is sent when receiving the content that content providing injects by the described first media store network element, and whether described content file list is used for the content that the described second media store network element verifies described content file list correspondence complete;

The described second media store network element verifies according to described content file list whether the content of described first media store network element storage is complete, if then duplicate described content and storage from the described first media store network element; If not, then notify described content providing to refill content to the described first media store network element.

2. content method for implanting according to claim 1 is characterized in that, duplicates from the described first media store network element after described content and the storage, also comprises:

Whether the content that the described second media store network element duplicates and stores from the described first media store network element according to described content file list checking is complete, if then keep storing the content of duplicating from the described first media store network element; If not, then notify described content providing to refill content to the described first media store network element.

3. content method for implanting according to claim 1, its feature be, whether the content that the described second media store network element is verified described first media store network element storage according to described content file list complete comprising:

The described second media store network element sends checking request message to the first media store network element;

The described second media store network element receives the second content listed files that the described first media store network element sends; Described second content listed files is generated by described first media store network element content according to storage after receiving described checking request message;

The described second media store network element verifies whether described content file list is identical with described second content listed files, if then confirm the content intact that the described first media store network element is stored; If not, confirm that then the content of described first media store network element storage is imperfect.

4. content method for implanting according to claim 1 is characterized in that described content file list comprises content name, content size and content type at least.

5. according to any described content method for implanting of claim 1～4, it is characterized in that, describedly notify described content providing to refill content to comprise to the described first media store network element:

Send a notification message to described content providing, described notification message is used to indicate described content providing to refill content to the described first media store network element; Perhaps

Send a notification message to the described first media store network element, described notification message is used to indicate the described first media store network element to inform that described content providing refills content.

6. content method for implanting according to claim 1 is characterized in that, described content file list is produced by the described first media store network element or produced and injected the described first media store network element by described content providing.

7. the content method for implanting of a content-based distributing network is characterized in that, comprising:

Medium control network element receives the content file list that the first media store network element sends, described content file list is sent when receiving the content of content providing injection by the described first media store network element, and described content file list is used for described medium control network element and verifies whether the content of described content file list correspondence is complete;

Described medium control network element verifies according to described content file list whether the content of described first media store network element storage is complete, if then notify the second media store network element to duplicate described content and storage from the described first media store network element; If not, then notify described content providing to refill content to the described first media store network element.

8. content method for implanting according to claim 7 is characterized in that, the described second media store network element duplicates from the described first media store network element after described content and the storage, also comprises:

Described medium control network element verifies according to described content file list whether the content that the described second media store network element duplicates and store is complete from the described first media store network element, if, the content of then notifying the described second media store network element to keep storage from the described first media store network element, to duplicate; If not, then notify described content providing to refill content to the described first media store network element.

9. content method for implanting according to claim 7, its feature be, whether the content that described medium control network element is verified described first media store network element storage according to described content file list complete comprising:

Described medium control network element sends checking request message to the first media store network element;

Described medium control network element receives the second content listed files that the described first media store network element sends; Described second content listed files is generated by described first media store network element content according to storage after receiving described checking request message;

Described medium control network element verifies whether described content file list is identical with described second content listed files, if then confirm the content intact that the described first media store network element is stored; If not, confirm that then the content of described first media store network element storage is imperfect.

10. content method for implanting according to claim 7 is characterized in that described content file list comprises content name, content size and content type at least.

11. according to any described content method for implanting of claim 7～10, it is characterized in that, describedly notify described content providing to refill content to comprise to the described first media store network element:

Send a notification message to described content providing, described notification message is used to indicate described content providing to refill content to the described first media store network element; Perhaps

Send a notification message to the described first media store network element, described notification message is used to indicate the described first media store network element to inform that described content providing refills content.

12. the media store network element of a content-based distributing network is characterized in that, comprising:

Receiver module, be used to receive the content file list that the first media store network element sends, described content file list is sent when receiving the content of content providing injection by the described first media store network element, and described content file list is used to verify whether the content of described content file list correspondence is complete;

Authentication module is used for verifying according to described content file list whether the content of described first media store network element storage is complete;

Replication module is used in the checking result of described authentication module duplicating described content and storage when being from the described first media store network element;

Notification module is used in the checking result of described authentication module notifying described content providing to refill content to the described first media store network element for not the time.

13. media store network element according to claim 12 is characterized in that,

Described authentication module also is used for described replication module duplicates described content and storage from the described first media store network element after, verifies according to described content file list whether the content of described replication module storage is complete;

Described replication module also is used for when described authentication module is verified out the content intact of described replication module storage the content that keeps storage to duplicate from the described first media store network element;

Described notification module also is used for going out the content of described replication module storage when imperfect at the described authentication module certificate of inspection, notifies described content providing to refill content to the described first media store network element.

14. media store network element according to claim 12, its feature is that described authentication module comprises:

First submodule is used for sending checking request message to the first media store network element, and receives the second content listed files that the described first media store network element sends; Described second content listed files is generated by described first media store network element content according to storage after receiving described checking request message;

Second submodule is used to verify whether described content file list is identical with described second content listed files, if then confirm the content intact that the described first media store network element is stored; If not, confirm that then the content of described first media store network element storage is imperfect.

15. according to claim 12,13 or 14 described media store network elements, it is characterized in that,

Described notification module specifically is used for sending a notification message to described content providing, and described notification message is used to indicate described content providing to refill content to the described first media store network element; Perhaps be used for sending a notification message to the described first media store network element, described notification message is used to indicate the described first media store network element to inform that described content providing refills content.

16. the medium of content-based distributing network control network element is characterized in that, comprising:

Receiving element, be used to receive the content file list that the first media store network element sends, described content file list is sent when receiving the content of content providing injection by the described first media store network element, and described content file list is used to verify whether the content of described content file list correspondence is complete;

Authentication unit is used for verifying according to described content file list whether the content of described first media store network element storage is complete;

First notification unit is used in the checking result of described authentication unit notifying the second media store network element to duplicate described content and storage from the described first media store network element when being;

Second notification unit is used in the checking result of described authentication unit notifying described content providing to refill content to the described first media store network element for not the time.

17. medium control network element according to claim 16 is characterized in that,

Described authentication unit also is used for the described second media store network element duplicates described content and storage from the described first media store network element after, verifies according to described content file list whether the content of described second media store network element storage is complete;

Described first notification unit also is used for when described authentication unit is verified out the content intact of the described second media store network element storage content of notifying the described second media store network element to keep storage to duplicate from the described first media store network element;

Described second notification unit also is used for notifying described content providing to refill content to the described first media store network element when described authentication unit verifies out that the content of described second media store network element storage is imperfect.

18. medium control network element according to claim 17, its feature is that described authentication unit comprises:

First subelement is used for sending checking request message to the first media store network element, and receives the second content listed files that the described first media store network element sends; Described second content listed files is generated by described first media store network element content according to storage after receiving described checking request message;

Second subelement is used to verify whether described content file list is identical with described second content listed files, if then confirm the content intact that the described first media store network element is stored; If not, confirm that then the content of described first media store network element storage is imperfect.

19. according to claim 16,17 or 18 described medium control network elements, it is characterized in that,

Described second notification unit specifically is used for sending a notification message to described content providing, and described notification message is used to indicate described content providing to refill content to the described first media store network element; Perhaps specifically be used for sending a notification message to the described first media store network element, described notification message is used to indicate the described first media store network element to inform that described content providing refills content.

20. the content injected system of a content-based distributing network is characterized in that, comprising:

The first media store network element, second media store network element and the content providing;

Described content providing is used to inject content to the described first media store network element;

The described first media store network element, be used to receive the content that described content providing is injected, and send content file list to the described second media store network element, whether described content file list is used for the content that the described second media store network element verifies described content file list correspondence complete;

The described second media store network element, be used to receive the content file list that the described first media store network element sends, whether the content of verifying described first media store network element storage according to described content file list is complete, if then from the described first media store network element, duplicate described content and storage; If not, then notify described content providing to refill content to the described first media store network element.

21. the content injected system according to claim 20 is stated is characterized in that,

The described second media store network element duplicates from the described first media store network element after described content and the storage, also be used for verifying according to described content file list whether the content of duplicating and storing from the described first media store network element is complete, if then keep storing the content of from the described first media store network element, duplicating; If not, then notify described content providing to refill content to the described first media store network element.

22. the content injected system of a content-based distributing network is characterized in that, comprising:

The first media store network element, the second media store network element, content providing and medium control network element;

Described content providing is used to inject content to the described first media store network element;

The described first media store network element, be used to receive the content that described content providing is injected, and sending content file list to described medium control network element, described content file list is used for described medium control network element and verifies whether the content of described content file list correspondence is complete;

Described medium control network element, be used to receive the content file list that the described first media store network element sends, whether the content of verifying described first media store network element storage according to described content file list is complete, if then notify the described second media store network element from the described first media store network element, to duplicate described content and storage; If not, then notify described content providing to refill content to the described first media store network element;

The described second media store network element is used for the notice according to described medium control network element, duplicates described content and storage from the described first media store network element.

23. content injected system according to claim 22 is characterized in that,

Described medium control network element, also be used for the described second media store network element duplicates described content and storage from the described first media store network element after, whether the content of verifying described second media store network element storage according to described content file list is complete, if, the content of then notifying the described second media store network element to keep storage from the described first media store network element, to duplicate; If not, then notify described content providing to refill content to the described first media store network element.

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