CN111935019A

CN111935019A - Digital object addressing method, device and equipment and storage medium

Info

Publication number: CN111935019A
Application number: CN202010829392.8A
Authority: CN
Inventors: 姚青峰; 宋阳
Original assignee: Next Generation Internet Key Technology And Co ltd Of Erc Of Evaluation And Test Beijing
Current assignee: Next Generation Internet Key Technology And Co ltd Of Erc Of Evaluation And Test Beijing
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2020-11-13

Abstract

The invention discloses a digital object addressing method, a device and equipment based on IPv6, and a storage medium, wherein the method comprises the following steps: maintaining IP information of an associated digital object through an application node, and sending routing information or link state information of the digital object to an edge gateway connected with the application node in a specific interaction to update routing table information about the digital object in the edge gateway; implementing interactions with the edge gateway and controlling the digital object by an application node according to the interacted datagrams. The invention can enlarge the application range based on IPv6 and improve the implementation and management capability of network application.

Description

Digital object addressing method, device and equipment and storage medium

Technical Field

The invention relates to the technical field of computer network communication, in particular to a digital object addressing method, a digital object addressing device, digital object addressing equipment and a digital object addressing storage medium based on IPv 6.

Background

In a conventional network, an Internet Protocol (IP) is used to specify the switching and routing of packet information packets in the Internet, and is generally allocated to entity devices accessing the Internet, such as a router, a switch, a server, a computer, a mobile phone, and the like. However, in the IPv4 era of substantial outages of allocation, this use is reasonable and still limited by the bottleneck in the number of addresses. However, IPv6, which is the next generation version of IPv4, has the address upgraded from the original 32 bits to 128 bits, the total number of addresses is 128 powers of 2, and this space is too large to be imagined, so that it is said that addresses can be coded for every sand worldwide. If the use of IPv6 is still limited to the distribution of physical devices, it is obviously deviated from the problem of internet governance, which is difficult to revolutionarily influence the development of the internet, and especially, the upper-layer applications and information content carried by the devices do not widely utilize the core features of IPv 6.

Disclosure of Invention

The invention aims to provide a digital object addressing method, a digital object addressing device, digital object addressing equipment and a digital object addressing storage medium based on IPv6, and the technical problem that in the prior art, IPv6 addresses are single in use and cannot widely meet the requirement of continuously developed application scenes on specific network functions is solved.

In order to solve the above technical problem, the present invention provides an IPv 6-based digital object addressing method, where a digital object is associated with an application node in the form of a resource node, the method including the following steps:

maintaining, by the application device node, IP information of an associated digital object and sending routing information or link state information of the digital object to an edge gateway connected to the application device node with a specific interaction to update routing table information in the edge gateway regarding the digital object;

implementing interactions with the edge gateway and controlling the digital object by an application node according to the interacted datagrams.

As a further improvement of the above-mentioned IPv 6-based digital object addressing method of the present invention, controlling the digital object includes at least a GET instruction to acquire a resource, embedded in the IPv6 extension header of the datagram as needed, so that the application device node performs corresponding control.

As a further improvement of the above-described IPv 6-based digital object addressing method of the present invention, an error prompt is sent that is not targeted when control of the digital object fails.

As a further improvement of the IPv 6-based digital object addressing method, the digital object adopts a 128-bit IPv6 address, and the prefix segment of the IPv6 address of the digital object is at least consistent with the prefix segment to which the application device node belongs.

In order to solve the above technical problem, an IPv 6-based digital object addressing apparatus according to the present invention includes an application node, and a digital object is associated with the application node in the form of a resource node, and the apparatus further includes:

a routing unit, configured to maintain, by the application device node, IP information of an associated digital object, and send routing information or link state information of the digital object to an edge gateway connected to the application device node in a specific interaction, so as to update routing table information about the digital object in the edge gateway;

and the execution unit is used for implementing interaction with the edge gateway and controlling the digital object through the application equipment node according to the interactive datagram.

As a further improvement of the above IPv 6-based digital object addressing apparatus of the present invention, the execution unit controls the digital object to include at least a GET instruction for acquiring a resource, embedded in an IPv6 extension header of the datagram as needed, so that the application device node performs corresponding control.

As a further improvement of the above IPv 6-based digital object addressing apparatus of the present invention, the execution unit sends an error prompt whose purpose is not reachable when control of the digital object fails.

As a further improvement of the IPv 6-based digital object addressing device, the digital object adopts a 128-bit IPv6 address, and the prefix segment of the IPv6 address of the digital object is at least consistent with the prefix segment to which the application device node belongs.

In order to solve the above technical problem, a communication network device of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any one of the above methods when executing the computer program.

In order to solve the above technical problem, a computer storage medium of the present invention has a computer program stored thereon, and the computer program realizes the steps of any one of the above methods when executed by a processor.

Compared with the prior art, the invention supports the application extension of the external network by arranging the IPv6 address as the resource node for the digital object, associating the application equipment node and interacting with the edge gateway through the application equipment node. The invention can enlarge the application range based on IPv6 and improve the implementation and management capability of network application.

Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart of a digital object addressing method based on IPv6 according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a digital object network topology according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a digital object network topology according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of an IPv 6-based digital object addressing apparatus according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and variations in structure, method, or function that may be affected by one of ordinary skill in the art based on these embodiments are within the scope of the present invention.

It should be noted that the same reference numbers or symbols may be used in different embodiments, but these do not represent an absolute relationship in structure or function. Further, the references to "first" and "second" in the embodiments do not represent an absolutely distinct relationship in structure or function, and these are merely for convenience of description.

As mentioned above, IPv6 is the next generation version of internet protocol, and one of its greatest changes is to extend a very sufficient address space, offering unlimited possibilities for IP address allocation. With the rise of cloud computing and edge computing, in the embodiment of the present invention, based on a new gradually-evolved IPv6 allocation and application concept, IP address allocation focusing on upper-layer applications and information content carried by a device is expanded, and an IP address is associated and bound with a digital object. The control of the digital object can be realized through the application equipment nodes related to the digital object, and the flexibility of implementation of a network layer is directly improved by connecting externally connected network equipment and using the network architecture of IPv 6.

As shown in fig. 1, a flow chart of a digital object addressing method based on IPv6 in an embodiment of the present invention is shown. For digital objects, it may be in the form of software data including short videos, or in the form of hardware storage including electronic tags, as will be described in detail below. A digital object addressing method based on IPv6 is characterized in that the digital object has an independent IP address as an entity device of a network, can be used as a virtual node in the network, is associated with a corresponding application device node in order to be addressed to realize access as the entity device, and the application device node plays a routing forwarding node of the digital object in the network to expand the access of the IP network edge. Meanwhile, the application equipment node can control the digital object, abstract the digital object into the resource node disclosed in the network, and unify the access interface to realize the increasing, deleting, modifying and checking of the digital object. The method specifically comprises the following steps:

step S1, maintaining, by the application node, IP information of an associated digital object, and sending, with a specific interaction, routing information or link state information of the digital object to an edge gateway connected to the application node, so as to update routing table information about the digital object in the edge gateway. As described above, the application node serving as a link between the edge gateway and the digital object needs to support a certain routing function, and also has a certain management capability for the digital object. According to different types of digital objects, the application device nodes need to adopt different modes to butt joint corresponding digital objects, but the same points are positioning management based on IP addresses.

Example 1:

as shown in fig. 2, the associated application node may be a server 13 carrying short videos, represented by software data forms where the digital object is a short video. The short videos 14 are used as a plurality of digital objects, and are respectively configured with corresponding IP addresses, which are physically stored on the server 13, but are abstracted into different network element nodes in the network from the server 13, and are actually used as application equipment nodes of the server 13 for forwarding management of the digital objects, such as physical file operations, and further, based on a binary tree index structure of the IP addresses, the efficiency of query can be improved. The interaction between the application device node and the edge gateway 12 is performed by using normal route management between the router and the edge gateway 12, and the edge gateway 12 is connected to the external network 11 and can transmit and receive corresponding information, thereby interacting with the application device node according to the content of the routing table.

Example 2:

as shown in fig. 3, the digital object is represented by a hardware storage form of an electronic tag, and the associated application device node may be a radio frequency identification device 23 capable of reading from and writing to the electronic tag. Different from embodiment 1, a digital object may exist in the electronic tag 24 separated from the application device node body, the corresponding resource may be corresponding tag information stored in the electronic tag 24, and the application device node controls the digital object by reading and writing the electronic tag 24 with a radio frequency identification signal. The rfid device 23 not only plays a role of controlling and forwarding a digital object as an electronic tag, but also has a function of performing normal routing exchange and routing forwarding with the connected edge gateway 22. Similarly, the edge gateway 22 is connected to the external network 21, so that both the corresponding application node and the digital object can have corresponding node access capability on the network through the edge gateway 22.

Preferably, when the corresponding digital object is associated with the application node, such as a short video stored in the corresponding server, the electronic tag is stably identified by the rfid device, and the application node maintains the associated digital object to determine the digital objects controllable by the application node, and since each digital object has an IP address, the reachable digital object can be determined by the recorded IP address information. Further, the application node, as a transit node, may exchange corresponding digital object reachability information to a connected edge gateway, for example, the application node periodically advertises a digital object connected to the edge gateway itself, or advertises link state information including address prefixes aggregated by all digital objects and overheads to reach the prefixes when initiating and discovering a network topology change. After receiving the update information, the edge gateway may calculate a routing condition passing through the application device node, so as to add the optimal route to the routing table, and the routing table may serve as a route reference for the edge gateway to forward the corresponding traffic to the application device node.

When the IP address of the digital object is allocated by static Configuration or DHCP (Dynamic Host Configuration Protocol), the corresponding routing table entry may also update the entry according to the static Configuration or DHCP Configuration information. Preferably, in order to reduce the burden of the routing table, consecutive IP addresses are allocated to the digital objects associated with the same application node, which simplifies the routing summary and improves the routing efficiency. Further, when the 128 bit IPv6 address is allocated to the digital object, the prefix gateway of the IPv6 address of the digital object is at least consistent with the prefix network segment to which the application device node belongs, so that the digital object and the application device node belong to the same network in the form.

Step S2, implementing interaction with the edge gateway and controlling the digital object through an application node according to the interactive datagram. In step S1, the network has routing information related to the digital object through conventional routing protocol interaction, and the edge gateway can forward the datagram through determining the next hop of application node, so that the digital object can be accessed through the IP address. When the corresponding digital object in the network needs to be accessed, the existing network architecture can be utilized to realize the butt joint of the digital object, the network element in the existing network does not need to be updated, and the modification of the addressing network can be realized only by upgrading the node side of the application equipment associated with the digital object.

In the embodiment of the present invention, the digital object generally has no complicated operability compared with the physical device, and is only a specific reality in the network, which may be a piece of text, a picture, a song, a video, etc., and may be referred to as a "digital object or resource". By associating a specific URI (Uniform Resource Identifier, Uniform Resource locator), i.e. a globally unique IPv6 address, with each digital object, when it is necessary to obtain the above-mentioned Resource, access to the URI of the digital object, i.e. interaction with a series of resources on the internet, calls the URI of the digital object. The access process is carried out in the network layer in the form of datagram, the datagram is the grouping of the network layer, and reaches the corresponding digital object from a host by a plurality of routers, thus expanding the routing function of the original network layer and realizing the control of the corresponding digital object directly in the network layer. For a router, when a datagram of a specific digital object is received, a destination address in the datagram (that is, an IPv6 address of the digital object) may be determined according to a conventional routing manner, and a next-hop IP address may be determined according to a routing table or a destination cache, so as to implement forwarding. For the edge gateway, the edge gateway is a first gateway device from the corresponding application device node to the external network, and if the datagram received by the edge gateway is a datagram sent by the application device node, the datagram is forwarded according to the corresponding destination address. If the digital object is a datagram such as a resource request sent from an external network, a destination address in the datagram may also be determined to determine whether the corresponding digital object is in the updated local routing table, and further, the route of the digital object accessed recently may also be reflected in the destination cache. When the corresponding application device node is determined, the corresponding datagram is transmitted to the corresponding application device node.

It is added that resources such as digital objects, in addition to locating the digital object via the URI, also have specific interactions with the digital object involving changes in the data and state of the digital object. The most direct way is to embed the mark of state conversion in the IP address, but this method has certain disadvantages, the IP address is the position representing the digital object, and the action of state conversion is reflected in the IP address and inevitably causes confusion to the positioning of the resource. Therefore, in this embodiment, the extended header mechanism of IPv6 is fully utilized, and according to the network protocol, the IPv6 extended header embedded in the datagram does not affect the normal forwarding of the intermediate network element, and at the same time, the specific functional network element can adaptively process the content of the extended header according to IPv6 when receiving the datagram. Specifically, around the operation mode of the resource, instructions such as GET, POST, PUT, DELETE and the like embedded in the IPv6 extension header are set, the GET is used to acquire the resource, the POST is used to create the resource (or update the resource), the PUT is used to update the resource, and the DELETE is used to DELETE the resource. Such as when it is desired to retrieve information in a particular short video or electronic tag, it can be implemented with a GET command. Similarly, a specific digital object needs to be created, updated and deleted, and accordingly, the corresponding instruction is used for implementation, it should be noted that, for support of the specific instruction, compatibility of the application device node associated with the digital object is required, and if the compatibility is not required, the corresponding datagram is only discarded by the application device node. In further embodiments, the specific format of the digital object may also be embedded in the IPv6 extension header for performing the corresponding check.

Correspondingly, the application device node side receives the corresponding datagram from the edge gateway through interaction, and judges whether the datagram is the datagram of the associated digital object, or the datagram can be matched and searched in a routing table similar to the maintained digital object IP information, if the datagram is not found, the datagram is not associated with the application device node, the corresponding datagram can be discarded, and further an error prompt with an unreachable destination can be sent. In the case of an associated digital object, the IPv6 extension header in the datagram is also examined to determine specific controls, thereby refining access to the digital object into controls for presentation level state translation. Taking the GET instruction as an example, when a corresponding digital object is determined by an IP address, according to the GET instruction in the IPv6 extension header, the corresponding digital object content can be obtained in a control manner of the application device node itself, for example, the information of the electronic tag is information fed back by reading the electronic tag radio frequency by using the radio frequency identification device, and then the corresponding content is encapsulated and returned to the source address of the request, specifically, the application device node is sent to the external network through the edge gateway.

It should be further developed that after the corresponding control is implemented by the application node, no matter data or confirmation information needs to be returned, the source address and the destination address of the datagram need to be configured, the source address is very simple, i.e. the IP address of the digital object, and the destination address needs to record the source address of the received corresponding packet by using the connection tracking technology, and the source address of the sender is used as the returned destination address. Preferably, an error prompt is sent that the destination is not reachable when the digital object fails to be controlled, for example when the corresponding instruction is not supported or when the corresponding right exists.

In the embodiment of the invention, a separate IP address is coded for each digital object, and the traditional end system access is refined into the access to a specific digital object. The digital object exists in the network in the form of peer-to-peer network nodes through IP addresses, is fully exposed in the network, can be conveniently called and accessed by upper-layer applications, and even equipment such as a router and the like working in a network layer can also be directly managed. Further, the access type or metadata (i.e. specific attribute information of the digital object) of the digital object is determined by the accessed IP address, and an access rule is set as required to implement network flow control for the content. In addition, the real-time online sampling statistics of the network flow can be realized based on the metadata determined by the IP address, and the capability of network monitoring analysis is improved.

It should be added that the above step S1 and step S2 do not have an absolute precedence relationship, step S1 mainly implements a route switching process, step S2 mainly implements a route forwarding process, and both processes may be performed simultaneously, any route change occurring in the link may trigger the execution of step S1, and when the edge gateway sends the datagram to the application device node, the execution of step S2 may also be triggered at any time.

As shown in fig. 4, a schematic diagram of an IPv 6-based digital object addressing apparatus according to an embodiment of the present invention is shown. The IPv 6-based digital object addressing device specifically comprises a routing unit U1 and an execution unit U2. For digital objects addressed with IPv6, in order to be able to address the corresponding digital object through an IP address for access, the network setup on the digital object side must be modified. In this embodiment, the routing unit U1 similarly distributes the IP information and routing relationship of the digital object to the network, i.e., exchanges the corresponding routing information or link state information to the corresponding router. The execution unit U2 forwards the existing network layer datagram to complete the last hop access processing.

Specifically, the routing unit U1 is configured to maintain IP information about an associated digital object via the application node, and send routing information or link state information of the digital object to an edge gateway connected to the application node with a specific interaction, so as to update routing table information about the digital object in the edge gateway. According to IP information of related digital objects maintained by application equipment nodes, determining routing information or link state information of specific digital objects, and exchanging the routing information or link state information to an edge gateway, referring to an implementation mode of a digital object addressing method based on IPv6, time nodes of specific interaction are different according to different situations. The edge gateway also exchanges with the router of the external network so as to determine the best route, and the specific routing protocol can be based on distance vector, link state or path vector technology, which will not be described in detail herein.

In a preferred embodiment, the digital object adopts 128-bit IPv6 address, the prefix segment of the IPv6 address of the digital object is at least consistent with the prefix segment to which the application device node belongs, a more convergent address allocation scheme is adopted to facilitate management and address summarization, consecutive IP addresses can be directly added to entries in the routing table with aggregated address prefixes, the complexity of the routing table is reduced, only the longest match needs to be determined during matching, and the time for route matching is reduced.

And the execution unit U2 is used for implementing the interaction with the edge gateway and controlling the digital object through an application device node according to the interactive datagram. Due to the inoperability of the digital object itself, there is a need to play a role in the link through the application node between the edge gateway and the digital object. When the application device node receives the datagram of the corresponding digital object, the application device node controls the digital object. The digital object is actually controlled as a resource node, the control of the resource comprises a GET instruction for acquiring the resource, a POST instruction for newly building the resource, a PUT instruction for updating the resource, and a DELETE instruction for deleting the resource, corresponding resource operation can be embedded in an IPv6 extension header in the datagram, the sending host can configure corresponding operation instruction in the IPv6 extension header when initiating an access request for a specific digital object, and the application device node can analyze the content of the IPv6 extension header to execute corresponding resource operation when receiving the datagram. Accordingly, the execution unit U2 controls the digital object to include at least a GET instruction to acquire the resource, embedded in the IPv6 extension header of the datagram as needed, to cause the application device node associated with the corresponding digital object to perform corresponding control, which may acquire or modify the content of the resource using associated wired or wireless communication. In a specific embodiment, when the digital object fails to be controlled, for example, the digital object does not support a corresponding control mode or has no corresponding control authority, an error prompt whose purpose is not reached is sent. It should be noted that the IPv 6-based digital object addressing apparatus embodiment may also refer to the IPv 6-based digital object addressing method embodiment.

In further embodiments, the IPv 6-based digital object addressing method may exist in a separate network device or computer-readable storage medium, and the corresponding devices may be integrated in the application node or edge gateway, or exist separately. In particular, the communication network device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the IPv6 based digital object addressing method when executing the computer program. Or separately in the form of a computer storage medium having stored thereon a computer program which, when being executed by a processor, carries out the steps of the IPv 6-based digital object addressing method.

In connection with the technical solutions disclosed in the present Application, the present invention may be directly embodied as hardware, a software module executed by a control unit, or a combination of the two, that is, one or more steps and/or one or more combinations of steps, and may correspond to each software module of a computer program flow, or may correspond to each hardware module, for example, an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other Programmable logic device, a discrete Gate or crystal logic device, a discrete hardware component, or any suitable combination thereof. For convenience of description, the above-mentioned apparatuses are described as being divided into various modules by functions, and of course, the functions of the modules may be implemented in one or more software and/or hardware when implementing the present application.

From the above description of the embodiments, it is clear to those skilled in the art that the present application can also be implemented by software plus necessary general hardware platform. Based on this understanding, the technical solutions of the present application may also be embodied in the form of software products, which essentially or partially contribute to the prior art. The software may be executed by a micro-control unit, and may include one or more micro-control units of any type, depending on the desired configuration, including but not limited to a microcontroller, a DSP (Digital Signal Processor), or any combination thereof. The software is stored in a memory, such as a volatile memory (e.g., random access memory, etc.), a non-volatile memory (e.g., read-only memory, flash memory, etc.), or any combination thereof.

In summary, the present invention arranges the IPv6 address as a resource node for the digital object, associates the application device node, and interacts with the edge gateway through the application device node to support application extension of the external network. The invention can enlarge the application range based on IPv6 and improve the implementation and management capability of network application.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. An IPv 6-based digital object addressing method, wherein a digital object is associated with an application node in the form of a resource node, the method comprising the steps of:

2. The IPv 6-based digital object addressing method according to claim 1, wherein controlling the digital object includes at least a GET instruction to GET resources, embedded as needed in an IPv6 extension header of a datagram, to cause the application device node to perform corresponding control.

3. The IPv 6-based digital object addressing method according to claim 1, wherein an error prompt is sent with an unreachable destination when control of the digital object fails.

4. The IPv 6-based digital object addressing method according to claim 1, wherein the digital object employs a 128-bit IPv6 address, and a prefix segment of the digital object IPv6 address coincides with at least a prefix segment to which the application node belongs.

5. An IPv 6-based digital object addressing apparatus, comprising an application node with which a digital object is associated in the form of a resource node, the apparatus further comprising:

6. The IPv 6-based digital object addressing apparatus according to claim 5, wherein the execution unit controls the digital object to include at least a GET instruction to acquire a resource, embedded in an IPv6 extension header of a datagram as required, to cause the application device node to perform corresponding control.

7. The IPv 6-based digital object addressing apparatus according to claim 5, wherein the execution unit, upon failure to control the digital object, sends an error prompt that the destination is unreachable.

8. The IPv 6-based digital object addressing apparatus according to claim 5, wherein the digital object employs a 128-bit IPv6 address, and a prefix segment of the IPv6 address of the digital object coincides with at least a prefix segment to which the application node belongs.

9. A communication network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of claims 1-4 are implemented when the computer program is executed by the processor.

10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.