CN115623091A - Method and device for realizing network interconnection and intercommunication and forwarding of route - Google Patents
Method and device for realizing network interconnection and intercommunication and forwarding of route Download PDFInfo
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- CN115623091A CN115623091A CN202211598141.9A CN202211598141A CN115623091A CN 115623091 A CN115623091 A CN 115623091A CN 202211598141 A CN202211598141 A CN 202211598141A CN 115623091 A CN115623091 A CN 115623091A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/164—Adaptation or special uses of UDP protocol
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Abstract
The invention discloses a method and a device for realizing network interconnection and intercommunication and forwarding of a route, which relate to the technical field of communication and comprise the following steps: constructing an IP-NDN border gateway server; the interaction between the network running the IP protocol and the NDN network is realized by using an IP-NDN border gateway server; the interaction between the network running the IP protocol and the NDN network by using the IP-NDN border gateway server comprises the following steps: the method comprises the steps that conversion between an Internet protocol stack and an NDN protocol stack is carried out on an IP-NDN border gateway server based on an application layer, and a network user running an IP protocol accesses an NDN network to obtain NDN network data; and the NDN network user accesses the network running the IP protocol to acquire the network data running the IP protocol. The method of the invention can realize the interconnection and intercommunication between the network applying the IP protocol and the NDN network, and improve the compatibility and the availability of the network.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a forwarding method and a forwarding device for realizing network interconnection and intercommunication and routing.
Background
With the continuous development of information networks, the IP protocol is more and more difficult to meet the requirements of diversified scenes on the network service quality. In order to solve this problem, researchers have proposed NDN networks (Named Data Networking), i.e., named Data networks, intended to replace existing IP networks, but it is difficult to complete the replacement in a short time, and thus a long-term process of gradually replacing the existing IP networks by collaborative coexistence is required.
However, since the protocols used by the IP protocol and the NDN network are two different protocols, the network using the IP protocol and the NDN network cannot be interconnected, which is not favorable for the development of the information network.
Disclosure of Invention
To solve one or more of the above problems, a forwarding method and apparatus for implementing network interworking and routing are provided.
According to one aspect of the present invention, a forwarding method for implementing network interconnection and interworking and routing is provided, which includes: constructing an IP-NDN border gateway server; the interaction between the network running the IP protocol and the NDN network is realized by using an IP-NDN border gateway server, and the method comprises the following steps:
the method comprises the steps that conversion between an Internet protocol stack and an NDN protocol stack is carried out on an IP-NDN border gateway server based on an application layer, and a network user running an IP protocol accesses an NDN network to obtain NDN network data;
and the NDN network user accesses the network running the IP protocol to acquire the network data running the IP protocol.
In some implementations, the constructing the IP-NDN border gateway server includes:
building a network for operating an IP protocol and an NDN network;
connecting a plurality of selected NDN network boundary nodes with a network running an IP protocol;
the NDN network boundary node connected with the network running the IP protocol is registered in the network running the IP protocol, and an Internet protocol stack is installed in the network running the IP protocol so as to simultaneously run two sets of protocols of the Internet protocol stack and the NDN protocol stack. The beneficial effects are as follows: and constructing an interactive channel between the IP network and the NDN network.
In some practical manners, the performing, on the IP-NDN border gateway server, conversion between an Internet protocol stack and an NDN protocol stack based on an application layer, and implementing that a network user running an IP protocol accesses the NDN network to obtain NDN network data further includes: and carrying out protocol conversion between the UDP Server Server and the Commurer client. The beneficial effects are as follows: a user of the IP network may request a data packet from the NDN network.
In some implementations, the protocol converting between the UDP Server and the client includes:
registering the content information of the NDN network on an IP-NDN border gateway server, so that a network user operating an IP protocol acquires NDN network data;
encapsulating the NDN content interest packet name to be acquired into a UDP data packet;
encapsulating the NDN content interest package;
and encapsulating the data content into UDP data packets according to the generated conversion table. The beneficial effects are as follows: and the NDN network data can be conveniently acquired by an IP network user.
In some implementations, encapsulating the NDN content interest packet name to be obtained into the UDP data packet includes:
and sending the IP address of the IP-NDN subnet boundary gateway server as a temporary destination address to the IP-NDN subnet boundary gateway server.
In some implementations, the encapsulating NDN content interest package includes in particular: and analyzing the UDP data packet, taking out the NDN content interest packet name in the UDP data packet, packaging the NDN content interest packet according to the format of the NDN, and generating a corresponding conversion table. The beneficial effects are as follows: a user of the NDN network may request a packet from the IP network.
In some practical manners, the performing, on the IP-NDN border gateway server, conversion between an Internet protocol stack and an NDN protocol stack based on an application layer, and implementing that an NDN network user accesses a network running an IP protocol to acquire IP network data includes: and carrying out protocol conversion between the Producer server and the Client.
In some implementations, the performing protocol conversion between the Producer server and the Client includes:
registering content information of an IP network to an IP-NDN gateway server in an NDN format to form an interest table, so that NDN network users acquire network data operating an IP protocol;
routing the NDN interest packet;
matching the NDN interest package name with an interest table to obtain an IP address corresponding to the interest package name;
and packaging the data into an NDN data packet and replying.
In some practical manners, the matching the NDN interest packet name with the interest table may specifically include: and analyzing the NDN interest packet, matching the NDN interest packet name in the NDN data packet with the IP address corresponding to the interest packet name in the interest table, packaging the UDP request data packet in the UDP format and the corresponding IP address after the NDN interest packet is successfully matched, and sending the UDP request data packet.
According to another aspect of the present application, a forwarding device for implementing network interconnection and routing is provided, and the forwarding method is used for performing network interconnection and routing forwarding. The beneficial effects are as follows: the interconnection and intercommunication between the network using the IP protocol and the NDN network are realized, namely, a user of the network using the IP protocol can access the data of the NDN network, and a user of the NDN network can access the data of the network using the IP protocol.
A forwarding method for realizing network interconnection and routing can realize interconnection and intercommunication between a network using an IP protocol and an NDN network and improve the compatibility and usability of the network.
Drawings
Fig. 1 is a schematic diagram of an NDN network and IP network interconnection architecture according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a communication process between an IP network and an NDN network when a user of the IP network accesses the NDN network to obtain data of the NDN network according to another embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating a communication time between an IP network and an NDN network when a user of the IP network accesses the NDN network to obtain NDN network data according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of an IP network user accessing NDN network data according to another embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a communication process between an NDN network and an IP network when a user of the NDN network accesses the IP network to obtain IP network data according to another embodiment of the present invention;
fig. 6 is a schematic flow chart illustrating a communication time between the NDN network and the IP network when a user of the NDN network accesses the IP network to obtain IP network data according to another embodiment of the present invention;
fig. 7 is a schematic diagram of a NDN network user accessing an IP network to obtain IP network data according to another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 to 7 schematically show a forwarding method and apparatus for implementing network interworking and routing according to an embodiment of the present invention.
As shown in fig. 1, a method for implementing network interconnection and interworking and forwarding of a route includes: s1, constructing an IP-NDN border gateway server;
s2, the interaction between the network running the IP protocol and the NDN network is realized by using an IP-NDN border gateway server, and the method comprises the following steps:
s21, converting an Internet protocol stack and an NDN protocol stack on the basis of an application layer on an IP-NDN border gateway server to realize that a network user running an IP protocol accesses the NDN network to acquire NDN network data;
and S22, converting an Internet protocol stack and an NDN protocol stack on the basis of an application layer on the IP-NDN border gateway server, and accessing the network running the IP protocol by an NDN network user to acquire the network data running the IP protocol.
Constructing an IP-NDN border gateway server, specifically: searching available boundary nodes on an NDN (named data networking) network, setting a plurality of NDN boundary nodes, and connecting the set NDN boundary nodes with an IP (Internet protocol) network, as shown in figure 1;
registering a boundary node of NDN connected with an IP network into the IP network, and installing an Internet protocol stack in the IP network to simultaneously run two sets of protocols of the Internet protocol stack and the NDN protocol stack so as to enable the boundary node of the NDN to become an IP-NDN boundary gateway server;
the interaction between a network running an IP protocol and an NDN network is realized through an IP-NDN border gateway server, and specifically, the method at least comprises the following steps: registering the content information of the NDN to an IP-NDN border gateway server, so that the IP can know the content information of the NDN, and an IP network user can acquire NDN network data conveniently;
and registering the content information of the IP network to an IP-NDN gateway server in a format of the { interest packet name, IP } of the NDN network to form a { interest packet name, IP } interest table, so that the NDN network can know the content information of the IP network, and a user of the NDN network can conveniently acquire IP network data.
The method for realizing the interaction between the network running the IP protocol and the NDN network through the IP-NDN border gateway server specifically comprises the following steps:
the method comprises the steps that an Internet protocol stack and an NDN protocol stack are converted on an IP-NDN border gateway server based on an application layer, and an IP network user accesses the NDN network to obtain NDN network data;
and the Internet protocol stack and the NDN protocol stack are converted on the basis of an application layer on the IP-NDN border gateway server, so that the NDN network user can access the IP network to acquire IP network data.
The method comprises the following steps of performing Internet protocol stack and NDN protocol stack conversion on an IP-NDN border gateway server based on an application layer, and realizing that an IP network user accesses the NDN network to acquire NDN network data, wherein the NDN network data acquisition step comprises the following steps:
installing a Client APP Client based on an Internet protocol stack on an IP network Client, installing a Server APP Client based on the Internet protocol stack and a Commumer APP Client based on an NDN protocol stack on an IP-NDN border gateway Server at the same time, and installing a Producer APP Client on a Server in the NDN network;
in the embodiment, the Client APP Client based on the Internet Protocol stack is a Client APP Client based on a UDP Protocol, that is, a User Datagram Protocol, and the Server APP Client based on the Internet Protocol stack is a Server APP Client based on the UDP Protocol;
the Client APP Client encapsulates the NDN content interest packet name required to be acquired into a UDP data packet, wherein the IP address of the IP-NDN subnet border gateway server is used as a temporary destination address, and the encapsulated UDP data packet is routed and addressed in the IP subnet, as shown in (1) (2) in FIG. 4;
after receiving the UDP data packet, the Server APP client of the IP-NDN border gateway Server parses the UDP data packet to extract an NDN interest packet name in the UDP data packet, transmits the NDN interest packet name to the client of the client and encapsulates the NDN interest packet name into an NDN interest packet, and generates a conversion table { interest packet name, user IP } as shown in (3) in fig. 4;
running an NDN protocol in the NDN network to route and match the interest packet content in the NDN network, thereby finding the interest content on the corresponding Producer APP client, as shown in (4) (5) in fig. 4;
the Producer APP client encapsulates the content into an NDN data packet, as shown in (5) in fig. 4;
running the NDN protocol to match users in the NDN sub-network, and forwarding the NDN data packet requested by the IP-NDN border gateway server to the IP-NDN border gateway server, as shown in (6) (7) in FIG. 4;
after receiving an NDN data packet returned by an interest packet requested by an IP-NDN border gateway server, the IP-NDN border gateway server encapsulates the NDN data packet into a UDP data packet according to a generated conversion table { interest packet name, user IP };
the Client APP Client on the Client APP Server decapsulates the NDN data packet returned by the interest packet requested by the Client APP Client, takes out the data from the NDN data packet and transmits the data to the Server APP Client, encapsulates the data into a UDP data packet, and then sends the encapsulated UDP data packet to the Client APP Client on the IP subnet route, as shown in (8) (9) in FIG. 4.
The method for converting the Internet protocol stack and the NDN protocol stack on the basis of the application layer on the IP-NDN border gateway server to realize that the NDN network user accesses the IP network to acquire the IP network data comprises the following steps:
the method comprises the steps that a Client APP Client based on an NDN protocol stack is installed at a Client of the NDN network, a Client APP Client based on an Internet protocol stack and a Producer APP Client based on the NDN protocol stack are installed on an IP-NDN border gateway Server at the same time, and a Server APP Client based on the Internet protocol stack is installed at a Server of the IP network;
the Client APP Client based on the Internet protocol stack in the embodiment is a Client APP Client based on a UDP (user Datagram protocol) protocol, and the Server APP Client based on the Internet protocol stack is a Server APP Client based on a UDP protocol;
the Commumer APP client encapsulates the required content into an interest packet, and addresses and routes in the NDN network are shown as (1) (2) in FIG. 7;
after receiving the NDN interest packet request, the Producer APP Client of the IP-NDN border gateway server analyzes the NDN interest packet to match the NDN interest packet name in the data packet with the { interest packet name, IP } interest table on the server, and after the match is successful, the Client APP Client encapsulates the request data packet in the UDP format and sends the request data packet to the IP network, as shown in (4) in fig. 7;
running Internet protocol stack routing in the IP network to find the data content on the corresponding Server APP client, as shown in (5) (6) in fig. 7;
the Server APP Client encapsulates the content requested by the Client into a UDP (user Datagram protocol) data packet, and replies the data packet to the Client APP Client on the IP-NDN border gateway Server by routing and addressing in the IP network, as shown in (6) in FIG. 7;
the Client APP Client on the IP-NDN border gateway server receives the replied UDP data packet and then analyzes the data packet into pure data, and then transmits the pure data to the Producer APP Client on the IP-NDN border gateway server, and the pure data is packaged into an NDN data packet, and the NDN data packet is packaged and encapsulated as shown in (7) and (8) in FIG. 7 and is forwarded to the Commumer APP Client by routing in the NDN network through an NDN protocol.
A forwarding device for realizing network interconnection and intercommunication and routing is used for carrying out network interconnection and intercommunication and routing forwarding.
The method of the invention can interconnect and intercommunicate two networks based on different protocol stacks, namely the network running the IP protocol and the NDN network, so that the two networks can coexist in a synergic manner. In this embodiment, the network running the IP protocol takes the IP network as an example, and the interconnection and intercommunication between other networks running the IP protocol and the NDN network is still applicable to the method of the present invention. Interconnection and intercommunication between the network running the IP protocol and the NDN network can reduce resource consumption in the entire network, and is also beneficial to the development of new networks.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A forwarding method for realizing network interconnection and intercommunication and routing is characterized by comprising the following steps: constructing an IP-NDN border gateway server; the interaction between the network running the IP protocol and the NDN network is realized by using an IP-NDN border gateway server, and the method comprises the following steps:
the method comprises the steps that conversion between an Internet protocol stack and an NDN protocol stack is carried out on an IP-NDN border gateway server based on an application layer, and a network user running an IP protocol accesses an NDN network to obtain NDN network data;
and the NDN network user accesses the network running the IP protocol to acquire the network data running the IP protocol.
2. The forwarding method of claim 1, wherein the constructing an IP-NDN border gateway server comprises:
building a network for operating an IP protocol and an NDN network;
connecting a plurality of selected NDN network boundary nodes with a network running an IP protocol;
the NDN network boundary node connected with the network running the IP protocol is registered in the network running the IP protocol, and an Internet protocol stack is installed in the network running the IP protocol so as to simultaneously run two sets of protocols of the Internet protocol stack and the NDN protocol stack.
3. The method of claim 1, wherein the performing Internet protocol stack and NDN protocol stack conversion based on an application layer on the IP-NDN border gateway server, and the enabling a network user operating an IP protocol to access the NDN network to obtain NDN network data further comprises: and carrying out protocol conversion between the UDP Server Server and the Commumer client.
4. The forwarding method of claim 3, wherein the protocol conversion between the UDP Server and the client further comprises:
registering content information of the NDN network on an IP-NDN border gateway server, so that a network user running an IP protocol acquires NDN network data;
encapsulating the NDN content interest packet name to be acquired into a UDP data packet;
encapsulating the NDN content interest package;
and encapsulating the data content into UDP data packets according to the generated conversion table.
5. The forwarding method for implementing network interconnection and interworking and routing according to claim 4, wherein encapsulating the NDN interest packet name to be obtained into the UDP data packet comprises:
and sending the IP address of the IP-NDN subnet boundary gateway server as a temporary destination address to the IP-NDN subnet boundary gateway server.
6. The forwarding method of claim 4, wherein the encapsulating the NDN content interest packet specifically comprises: and analyzing the UDP data packet, taking out the NDN content interest packet name in the UDP data packet, packaging the NDN content interest packet according to the format of the NDN, and generating a corresponding conversion table.
7. The method of claim 1, wherein the performing Internet protocol stack and NDN protocol stack conversion based on an application layer on the IP-NDN border gateway server, and the implementing NDN network user accessing a network running an IP protocol to obtain IP network data comprises: and carrying out protocol conversion between the Producer server and the Client.
8. The forwarding method for implementing network interworking and routing according to claim 7, wherein the performing protocol conversion between the Producer server and the Client comprises:
registering content information of an IP network to an IP-NDN gateway server in an NDN format to form an interest table, so that NDN network users acquire network data operating an IP protocol;
routing the NDN interest packet;
matching the NDN interest package name with an interest table to obtain an IP address corresponding to the interest package name;
and packaging the data into an NDN data packet and replying.
9. The method according to claim 8, wherein matching the NDN interest packet name with the interest table to the IP address corresponding to the interest packet name specifically comprises: and analyzing the NDN interest packet, matching the NDN interest packet name in the NDN data packet with the IP address corresponding to the interest packet name in the interest table, packaging the UDP request data packet in the UDP format and the corresponding IP address after the NDN interest packet is successfully matched, and sending the UDP request data packet.
10. A forwarding apparatus for implementing network interconnection and routing, wherein the forwarding method for implementing network interconnection and routing according to any one of claims 1 to 9 is used for forwarding the network interconnection and routing.
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