CN101714945A - System and method for realizing internetwork communication - Google Patents
System and method for realizing internetwork communication Download PDFInfo
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- CN101714945A CN101714945A CN200910224386A CN200910224386A CN101714945A CN 101714945 A CN101714945 A CN 101714945A CN 200910224386 A CN200910224386 A CN 200910224386A CN 200910224386 A CN200910224386 A CN 200910224386A CN 101714945 A CN101714945 A CN 101714945A
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Abstract
The invention discloses a system for realizing internetwork equipment communication, comprising at least three communication equipment: source equipment, transfer equipment and destination equipment. A source equipment application unit organizes the network path reaching a destination equipment application unit, obtains the position of the next equipment according to the network path and sends the communication information to the next equipment of the source equipment through a source equipment port unit. The communication information comprises the network path and data information. A transfer equipment port unit obtains the position of the next equipment according to the network path in the received communication information and forwards the communication information to the next equipment of the transfer equipment through another port unit. A destination equipment port unit sends the received communication information to a destination equipment application unit to process the data information. The invention also discloses a method for realizing internetwork equipment communication. The embodiment of the invention can realize communication among the equipment in different networks in the industrial control field simply and conveniently.
Description
Technical field
The present invention relates to industrial control field, particularly relate to a kind of system and method for realizing internetwork communication.
Background technology
In industrial control field, for two equipment that are positioned at heterogeneous networks (bus), when it needs to carry out data interaction each other, because its communication protocol difference realizes often relatively more difficult alternately.
The conventional way of prior art is by using specifically developed protocol conversion module to carry out protocol conversion, thereby realizes being positioned at the data interaction between two equipment of heterogeneous networks (bus).As shown in Figure 1, device A and equipment C lay respectively among network X, the network Y, adopt different communication protocol respectively.Need the data interaction between realization device A and the equipment C now.At this moment, need to adopt equipment B to transmit data as communication transferring equipment agency.
At first, equipment B receives the packet that device A sends, and resolves this packet according to the communication protocol of network X, obtains the target device (equipment C) of needs forwarding and the information of objective network (network Y); In communication protocol the packet that receives is carried out protocol conversion according to network Y; At last the packet that regenerates is sent to equipment C.
The inventor finds in research process, in the existing method, must adopt transferring equipment as the agency, interim data is resolved and regenerated, therefore the communication protocol that needs transferring equipment while awareness network X and network Y, and the packet that receives carried out protocol conversion, cause transferring equipment B design more complicated.Therefore, need to use specially designed equipment in the prior art, make that the data communication between the equipment becomes complicated and is difficult in the heterogeneous networks to realize as transferring equipment.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of system and method for realizing internetwork communication, the communication between the equipment in the realization industrial control field that can be easy in the heterogeneous networks.
For achieving the above object, the invention provides following scheme: a kind of system that realizes internetwork communication, described system comprises at least three communication equipments; Wherein, described communication equipment comprises source device, destination device and at least one transferring equipment; Each communication equipment comprises at least one applying unit and at least one port unit;
Described source device is used for: the source device applying unit obtains the network path that arrives the destination device applying unit, the position that obtains next equipment according to described network path is sent to the communication information by the port unit that has an identical network agreement with described next equipment next equipment of this source device; Wherein, the described communication information comprises network path and data message;
Described transferring equipment is used for: the position that the transferring equipment port unit obtains next equipment of this transferring equipment according to the network path that is received from the communication information of an equipment, and the port unit that has the identical network agreement by next equipment with this transferring equipment is forwarded to the communication information next equipment of this transferring equipment;
Described destination device is used for: the destination device port unit will be received from the communication information of an equipment and deliver to the destination device applying unit, carry out processing data information.
Preferably, the applying unit of described communication equipment is connected by the device interior virtual bus with port unit;
Each applying unit of described communication equipment and each port unit all have the inner unique static identity of this communication equipment.
Preferably, the port unit of described communication equipment also is connected with the device external network;
Each port unit of described communication equipment has the network address in the device external network that this communication equipment connecting on this port unit.
Preferably, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
Source device applying unit traverses network topology diagram is known the position of destination device, and tissue obtains by the achieve the goal network path of equipment applying unit of described source device applying unit.
Preferably, described system also comprises intermediate equipment; Wherein, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
The source device applying unit sends source device and destination device information to intermediate equipment, receive that intermediate equipment returns by the achieve the goal network path of equipment of source device;
Described intermediate equipment is used for, according to described source device that receives and destination device information, and the traverses network topology diagram, tissue is sent to described source device by the achieve the goal network path of equipment of source device.
The present invention also provides a kind of method that realizes internetwork communication, and described method comprises:
The source device applying unit obtains the network path that arrives the destination device applying unit, the position that obtains next equipment according to described network path is sent to the communication information by the port unit that has an identical network agreement with described next equipment next equipment of this source device; Wherein, the described communication information comprises network path and data message;
The position that the transferring equipment port unit obtains next equipment of this transferring equipment according to the network path in the communication information that is received from an equipment, the port unit that has the identical network agreement by next equipment with this transferring equipment is forwarded to the communication information next equipment of this transferring equipment;
The destination device port unit will be received from the communication information of an equipment and deliver to the destination device applying unit, carry out processing data information.
Preferably, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
Source device applying unit traverses network topology diagram is known the position of destination device, and tissue obtains by the achieve the goal network path of equipment applying unit of source device applying unit.
Preferably, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
The source device applying unit sends source device and destination device information to intermediate equipment, receive that intermediate equipment returns by the achieve the goal network path of equipment of source device.
Preferably, described transferring equipment port unit obtains the position of next equipment of this transferring equipment according to the network path in the communication information that is received from an equipment before, also comprise:
Described transferring equipment port unit is according to the network path in the described communication information, determines it self is not last equipment in this network path.
Preferably, before the communication information that described destination device port unit will be received from an equipment is delivered to the destination device applying unit, also comprise:
Described destination device port unit is determined certainly as last equipment in this network path according to the network path in the described communication information.
Preferably, described method also comprises:
When between the port unit of coupled next equipment communication failure taking place in the arbitrary device port unit in the described network path and this network path, this equipment tissue returns the network path of the applying unit of source device, feedback error information.
According to specific embodiment provided by the invention, the invention discloses following technique effect:
In the described system and method for the embodiment of the invention, described transferring equipment only plays the effect of transmitting the communication information, the data message in the communication information is not resolved and regenerated, this transferring equipment does not need specifically to understand the communication protocol of source device network of living in and destination device network of living in, makes that thus the transferring equipment design is fairly simple.
Compared with prior art, the embodiment of the invention do not need to use specifically developed equipment as transferring equipment, but the arbitrary equipment in the network all can be realized the function of transferring equipment when practical application.Make in the heterogeneous networks data communication between the equipment become easy thus and in realization.
Description of drawings
Fig. 1 is the internetwork communication schematic diagram of prior art;
Fig. 2 is the system construction drawing of the realization internetwork communication of the embodiment of the invention;
Fig. 3 is the device model schematic diagram of the embodiment of the invention;
Fig. 4 is the described network path schematic diagram of the embodiment of the invention;
Fig. 5 is the concrete example structure figure of the embodiment of the invention;
Fig. 6 is the method flow diagram of the realization internetwork communication of the embodiment of the invention.
Embodiment
The object of the present invention is to provide a kind of system and method for realizing internetwork communication, can solve the communication issue between the equipment in the heterogeneous networks in the industrial control field.
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The described system and method for the embodiment of the invention, based on device model, mode with network path, set up network communication models, the communication of the equipment in the network realized equipment in another network, such communication is directly, the mutual restriction that can not be subjected to heterogeneous networks and communication protocol of equipment room.
With reference to Fig. 2, be the system construction drawing of the realization internetwork communication of the embodiment of the invention.Described system comprises at least three communication equipments; Wherein, for a concrete internetwork communication process, each communication equipment in the system is divided according to function, can be comprised source device 10, destination device 20 and at least one transferring equipment 30.
The applying unit 101 of described source device 10 obtains the network path that arrives destination device 20 applying units 201, the position that obtains next equipment that links to each other with source device 10 according to described network path is by being sent to described next equipment that links to each other with this source device 10 with port unit 102 that next equipment of this original equipment 10 has an identical network agreement with the communication information; Wherein, the described communication information comprises network path and data message;
After the port unit 301 of described transferring equipment 30 receives the described communication information of coupled last equipment transmission, determine certainly as transferring equipment according to the network path in the described communication information, and the position that obtains next coupled equipment, by the communication information being forwarded to described next equipment that links to each other with this transferring equipment 30 with port unit 302 that next equipment of this transferring equipment 30 has an identical network agreement;
After the port unit 202 of described destination device 20 receives the communication information of coupled last equipment transmission, determine certainly as destination device according to the network path in the described communication information, the communication information is delivered to applying unit 201, by the data message in the applying unit 201 processing communication informations.
Concrete, in order to realize above-mentioned data transmission procedure, it is identical with the network of described coupled last equipment connection that described transferring equipment receives network that the port unit of data connects; It is identical with the network of described coupled next equipment connection that described transferring equipment is transmitted network that the port unit of data connects.
Need to prove that in order to realize the internetwork communication between communication equipment, the applying unit of setting each communication equipment in the described system of the embodiment of the invention has identical data and generates and analysis mode.Therefore, the applying unit of destination device 20 processing that the data message received carries out that can directly achieve a butt joint.
In the described system of the embodiment of the invention, described transferring equipment only plays the effect of transmitting the communication information, the data message in the communication information is not resolved and regenerated, this transferring equipment does not need specifically to understand the communication protocol of source device network of living in and destination device network of living in, and the feasible thus device design of heavily changeing is fairly simple.
Compared with prior art, the described system of the embodiment of the invention do not need to use specifically developed equipment as transferring equipment, but the arbitrary equipment in the network all can be realized the function of transferring equipment when practical application.Make in the heterogeneous networks data communication between the equipment become easy thus and in realization.
In the described method of prior art, between source device and the destination device is indirect alternately, makes source device be subjected to the restriction of transferring equipment to the operational capacity of destination device.For example, hypothesis goal equipment is supported 10 operational orders, and transferring equipment is only supported 5 operational orders, and then this moment, source device can only be realized 5 operational orders to destination device.Especially when source device need be connected by several transferring equipment with destination device, this moment, source device can only be the minimum value of all transferring equipment operational capacities to the operational capacity of destination device.
But, in the described system of the embodiment of the invention, because transferring equipment only plays the effect of transmitting the communication information, the data message in the communication information is not resolved and regenerated, being equivalent to source device can directly realize the operation of destination device is controlled, make the source device not to be subjected to the influence of transferring equipment, solved the problem that source device in the prior art is restricted the operational capacity of destination device the operational capacity of destination device.
Below the described system of the embodiment of the invention is realized that the detailed process of across a network devices communicating is described in detail.
Source device, transferring equipment and destination device described in the described system of the embodiment of the invention, be according to the communication equipment in the network topology structure in a certain concrete data transmission procedure, the role who is served as divides.For each communication equipment, when it was in different data transmission procedures, the role that it served as was inequality, thereby its function that realizes also is inequality.
Wherein, source device is meant and is used for sending communication, the equipment of dateout information; Transferring equipment is meant and is used for interim data information, realizes the equipment that communication is transmitted; Destination device is meant and is used for received communication, the equipment of deal with data information.Therefore, in the whole data transmission procedure, through the transferring equipment equipment that achieves the goal, form a network link, can be referred to as network path by source device.
In actual applications, for a communication equipment, in different data transmission procedures, its role who serves as is also inequality.Be, same communication equipment can be used as source device, also can be used as transferring equipment, perhaps as destination device.When its role who specifically serves as not simultaneously, each communication equipment role in whole data transmission procedure is also inequality.In the described network communication models of the embodiment of the invention,,, set up the communication equipment model for the function of its specific implementation in the different pieces of information transmission course better is described to communication equipment in the network.
With reference to Fig. 3, be the communication equipment model schematic diagram of the embodiment of the invention.The embodiment of the invention is described waits for information in the device model, and communication equipment is combined by the device interior virtual bus of unit and linkage unit.Described unit is meant that communication equipment inside comprises the abstract model of the independent operating of data and behavior.
In the embodiment of the invention, unit can be divided into applying unit and port unit according to the interface features of communication equipment.Wherein, described applying unit connection device internal virtual bus is used to realize the tissue and the initiation of communicating by letter between communication equipment and the reception of the communication information and processing.Described port unit connection device internal virtual bus and device external network are used to realize the forwarding of communicating by letter between communication equipment.
For a communication equipment, generally can comprise at least one applying unit and at least one port unit, all applying units all are connected by the device interior virtual bus with port unit.Wherein, each applying unit of communication equipment and port unit all have the unique static identity of device interior.And, except that having the unique static identity of device interior, also have the network address of communication equipment on the device external network that this port is connecting for port unit.
Need to prove that for same communication equipment, the external network that its each port unit connected can be inequality.For example, for a certain communication equipment, may comprise port unit Port1 and port unit Port2, the external network that its port unit Port1 connects may be network X, and the external network that its port unit Port2 connects may be network Y.At this moment, for port unit Port1, have the network address of this communication equipment in network X; And, then have the network address of this communication equipment in network Y for port unit Port2.Thus, for same communication equipment, by different port units, can realize with each network in communicating by letter between the port unit of communication equipment.
Concrete, be being connected between equipment and the equipment by the realization that is connected between device port unit and the device port unit.Communication during the device port unit is realized with network according to the network address of communication equipment in whole network between the port unit of other equipment.Wherein, whole network is meant whole network topology structure described in the embodiment of the invention, and this network can comprise a plurality of sub-networks with different communication protocol.
Interconnected between each applying unit of device interior and the port unit is to realize by the virtual bus of device interior.The virtual bus of described device interior is an internal virtual bus that is connecting all devices unit.The all devices unit all can be visited mutually by described virtual bus, the static identity that unit has is equivalent to the address of each unit on described virtual bus in the equipment, and the unit in the equipment can be realized and the communicating by letter of other units by this static identity.
Therefore, for a certain communication equipment, the port unit of other communication equipments the applying unit that the communication source that the port unit of described communication equipment is transmitted (the received communication information from where) and communication objective (where the communication information is sent to) they can be described communication equipment inside and other port units and the network.Be, for different communication equipment, its communication each other must realize through the two port unit separately; Can not directly realize communication between the applying unit of different communication equipment.
The described system of the embodiment of the invention just is based on above-mentioned communication equipment model realization, below in conjunction with the said equipment model the described system of the embodiment of the invention is realized that the detailed process of across a network devices communicating is described in detail.
Need initiate communication when source device, during dateout information, the applying unit of source device all will participate in communicating by letter with port unit.At this moment, the applying unit tissue of source device is by the achieve the goal network path of equipment applying unit of source device.Described network path is specially: which transferring equipment source device need reach target device through.
Concrete, the applying unit of source device can obtain whole topology of networks figure, comprises the position and the connected mode of all-network equipment in the whole network in this topology diagram.The applying unit of source device can be known the position of destination device in network by the described network topology structure figure of traversal, and then tissue obtains the transferring equipment that need be passed through by the source device equipment of achieving the goal, forms network path.
Need to prove, generally speaking, may have many network paths from the source device equipment of achieving the goal, this moment, the applying unit of source device only need get final product from many network paths in one of selection.
Preferably, described network path also can be provided by the intermediate equipment in the network.Concrete, in whole network, intermediate equipment being set, this equipment stores whole topology of networks figure.When certain equipment need be initiated communication as source device, source device is with self information and need the information of the destination device of reception data to send to described intermediate equipment, by the information of intermediate equipment according to source device and destination device, by the traverses network topology diagram, tissue is by the achieve the goal network path of equipment of source device, and selects wherein one to be back to source device.
Further, the network path that described intermediate equipment also can obtain all traversals all is back to source device, selects wherein realization communication by source device.
After the applying unit of source device is organized network path, obtain the positional information of next equipment that links to each other with self according to described network path, the communication information that will comprise this network path and data message is by being sent to described next equipment that links to each other with self with port unit that described next equipment has the identical network agreement.
Transferring equipment need be transmitted communication.After the communication information that the port unit of the transferring equipment equipment that receives sends, determine certainly as transferring equipment according to the network path that comprises in the described communication information, and obtaining the positional information of the next equipment that links to each other with self, the port unit that has the identical network agreement by next equipment with this transferring equipment is forwarded to described next equipment with the described communication information.
Concrete, transferring equipment judges according to the network path that comprises in the described communication information whether self is last equipment, when also having with next equipment that self links to each other in determining network path, determines certainly as transferring equipment.
Destination device needs received communication, deal with data information.When the port unit of destination device receives the communication information of equipment transmission, determine certainly as destination device according to the network path that comprises in the described communication information, the communication information is delivered to the applying unit of destination device, by the data message that comprises in the applying unit received communication information, handle this data message.
Concrete, destination device judges according to the network path that comprises in the described communication information whether self is last equipment, when determining it self is in the network path during last equipment, determines from as destination device.
So far, finished the data communication between the equipment in the heterogeneous networks.
Preferably, in data transmission procedure, the port unit of any one equipment in the network path with this network path in when communicating between the port unit of the next equipment that links to each other with self, if generation communication failure, then this equipment can return the network path of source device applying unit according to the routing information tissue that sends, and feedback error information is given source device.
With reference to Fig. 4, be the described network path schematic diagram of the embodiment of the invention.
In actual applications, more than one of the possibility of transferring equipment described in the network path is the forwarding that may need a plurality of transferring equipment of process from the source device equipment of achieving the goal.As shown in Figure 4, comprise n transferring equipment, wherein n is greater than 1 integer that equals 1.
The formation of network path shown in Figure 4 and put in order be the port unit a1-of the port unit-transferring equipment 1 of the applying unit-source device of source device the port unit b1-of transferring equipment 1-the port unit an-of transferring equipment n the port unit bn-of transferring equipment the applying unit of port unit-destination device of destination device.
Its communication information transport process is: the applying unit of source device is initiated communication, and the port unit of source device sends the communication information; Through the forwarding of transferring equipment 1, the communication information is sent to destination device to the port unit of transferring equipment n; The port unit of destination device receives this communication information, and its applying unit is handled the communication information.
Below by the specific implementation process of the concrete example explanation embodiment of the invention, in conjunction with Fig. 5.Comprise network X and network Y in the network configuration shown in Figure 5, the communication protocol of network X and network Y is inequality.Comprise device A, equipment B and equipment C in the example shown in Figure 5; Wherein, device A is a source device; Equipment B is a transferring equipment; Equipment C is a destination device.Device A is connected by network X with equipment B; Equipment B is connected by network Y with equipment C.
Need to prove, for for simplicity, only just can realize communication between device A and the equipment C through a transfer in the example, in actual applications, its implementation procedure is identical with it during through multiple transfer.
In order to realize communicating by letter between device A and the equipment C, the applying unit AppA1 of device A is by the traverses network topology diagram, tissue is also selected a network path: the communication information through the equipment B transfer, reaches the applying unit AppC1 of equipment C by the applying unit AppA1 of device A.
At this moment, need to comprise in the described network path: the network address, equipment B the network address, equipment B the network address and equipment C the network address among network Ys among network Ys among network Xs of device A in network X.
Set, the port unit PortA1 of device A has the network address of device A in network X; The port unit PortB1 of equipment B has the network address of equipment B in network X, and the port unit PortB2 of equipment B has the network address of equipment B in network Y; The port unit PortC1 of equipment C has the network address of equipment C in network Y.
At this moment, described network path can specifically describe and be: the applying unit AppA1-of device A〉the port unit PortA1-of device A〉the port unit PortB1-of equipment B〉the port unit PortB2-of transferring equipment B〉the port unit PortC1-of equipment C〉the applying unit AppC1 of equipment C.
The concrete transmission course of the communication information is:
After the applying unit AppA1 that is arranged in the device A of network X organizes and obtains above-mentioned network path, obtain the position (being the network address of equipment B in network X) of the next equipment (being equipment B) that links to each other with device A in this network path, by described position, the port unit PortA1 of device A will comprise that the communication information of this network path and data message is sent to equipment B;
After having equipment B port unit PortB1 of the network address in network X in the equipment B and receiving the communication information that device A sends, determine certainly as transferring equipment (not being last equipment) according to the network path that comprises in the described communication information, and determine that the next equipment that links to each other with self is that equipment C and equipment C are among the network Y, at this moment, port unit PortB1 delivers to the port unit PortB2 that has equipment B network address in network Y with the described communication information, by port unit PortB2 the described communication information is forwarded to equipment C.
After port unit PortC1 among the equipment C receives the communication information of equipment B forwarding, determine certainly as destination device (last equipment) according to the network path that comprises in the described communication information, the applying unit AppC1 of equipment C receives the data message in the described communication information, and handles this data message.
Thus, realized the data communication between the equipment in the heterogeneous networks, and equipment B only plays the effect of transmitting the communication information, the data message in the communication information is not resolved and regenerated, equipment B does not need specifically to understand the communication protocol of device A network X of living in and equipment C network Y of living in, makes that thus the equipment B design is fairly simple.
Compared with prior art, the described system of the embodiment of the invention do not need to use specifically developed equipment as transferring equipment, but the arbitrary equipment in the network all can be realized the function of transferring equipment when practical application.Make in the heterogeneous networks data communication between the equipment become easy thus and in realization.
Corresponding to the system of the described realization across a network of embodiment of the invention devices communicating, the embodiment of the invention also provides a kind of method that realizes internetwork communication.With reference to Fig. 6, be the described method flow diagram of the embodiment of the invention, described method specifically may further comprise the steps:
Step S10: the source device applying unit obtains the network path that arrives the destination device applying unit, the position that obtains next equipment according to described network path is sent to the communication information by the port unit that has an identical network agreement with described next equipment next equipment of this source device; Wherein, the described communication information comprises network path and data message;
Need to prove that the described network path that arrives the destination device applying unit that obtains is specially:
The applying unit of source device obtains whole topology of networks figure, by traveling through described network topology structure figure, can know the position of destination device in network, and then tissue obtains the transferring equipment that need be passed through by the source device equipment of achieving the goal, form network path.
Need to prove, generally speaking, may have many network paths from the source device equipment of achieving the goal, this moment, the applying unit of source device only need get final product from many network paths in one of selection.
Preferably, described network path also can be provided by the intermediate equipment in the network.Concrete, intermediate equipment is set in network, this equipment stores whole topology of networks figure.Source device sends to intermediate equipment with the information of self information and destination device, by the information of intermediate equipment according to source device and destination device, by the traverses network topology diagram, tissue is by the achieve the goal network path of equipment of source device, and selects wherein one to be back to source device.
Further, the network path that described intermediate equipment also can obtain all traversals all is back to source device, selects wherein realization communication by source device.
Step S20: the position that the transferring equipment port unit obtains next equipment according to the network path in the communication information that is received from an equipment, the port unit that has the identical network agreement by next equipment with this transferring equipment is forwarded to the communication information next equipment of this transferring equipment;
Concrete, transferring equipment judges according to the network path that comprises in the described communication information whether self is last equipment, when also having with next equipment that self links to each other in determining network path, determines certainly as transferring equipment.
Step S30: the destination device port unit will be received from the communication information of an equipment and deliver to the destination device applying unit, carry out processing data information.
Concrete, destination device judges according to the network path that comprises in the described communication information whether self is last equipment, when determining it self is in the network path during last equipment, determines from as destination device.
Preferably, described method also comprises: in data transmission procedure, the port unit of any one equipment in the network path with this network path in when communicating between the port unit of the next equipment that links to each other with self, if generation communication failure, then this equipment can return the network path of source device applying unit according to the routing information tissue that sends, and feedback error information is given source device.
In the described method of the embodiment of the invention, described transferring equipment only plays the effect of transmitting the communication information, the data message in the communication information is not resolved and regenerated, this transferring equipment does not need specifically to understand the communication protocol of source device network of living in and destination device network of living in, and the feasible thus device design of heavily changeing is fairly simple.
Compared with prior art, the described method of the embodiment of the invention do not need to use specifically developed equipment as transferring equipment, but the arbitrary equipment in the network all can be realized the function of transferring equipment when practical application.Make in the heterogeneous networks data communication between the equipment become easy thus and in realization.
More than to a kind of system and method for realizing internetwork communication provided by the present invention, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, part in specific embodiments and applications all can change.In sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. a system that realizes internetwork communication is characterized in that, described system comprises at least three communication equipments; Wherein, described communication equipment comprises source device, destination device and at least one transferring equipment; Each communication equipment comprises at least one applying unit and at least one port unit;
Described source device is used for: the source device applying unit obtains the network path that arrives the destination device applying unit, the position that obtains next equipment according to described network path is sent to the communication information by the port unit that has an identical network agreement with described next equipment next equipment of this source device; Wherein, the described communication information comprises network path and data message;
Described transferring equipment is used for: the position that the transferring equipment port unit obtains next equipment of this transferring equipment according to the network path that is received from the communication information of an equipment, and the port unit that has the identical network agreement by next equipment with this transferring equipment is forwarded to the communication information next equipment of this transferring equipment;
Described destination device is used for: the destination device port unit will be received from the communication information of an equipment and deliver to the destination device applying unit, carry out processing data information.
2. system according to claim 1 is characterized in that, the applying unit of described communication equipment is connected by the device interior virtual bus with port unit;
Each applying unit of described communication equipment and each port unit all have the inner unique static identity of this communication equipment.
3. system according to claim 2 is characterized in that, the port unit of described communication equipment also is connected with the device external network;
Each port unit of described communication equipment has the network address in the device external network that this communication equipment connecting on this port unit.
4. system according to claim 1 is characterized in that, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
Source device applying unit traverses network topology diagram is known the position of destination device, and tissue obtains by the achieve the goal network path of equipment applying unit of described source device applying unit.
5. system according to claim 1 is characterized in that described system also comprises intermediate equipment; Wherein, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
The source device applying unit sends source device and destination device information to intermediate equipment, receive that intermediate equipment returns by the achieve the goal network path of equipment of source device;
Described intermediate equipment is used for, according to described source device that receives and destination device information, and the traverses network topology diagram, tissue is sent to described source device by the achieve the goal network path of equipment of source device.
6. a method that realizes internetwork communication is characterized in that, described method comprises:
The source device applying unit obtains the network path that arrives the destination device applying unit, the position that obtains next equipment according to described network path is sent to the communication information by the port unit that has an identical network agreement with described next equipment next equipment of this source device; Wherein, the described communication information comprises network path and data message;
The position that the transferring equipment port unit obtains next equipment of this transferring equipment according to the network path in the communication information that is received from an equipment, the port unit that has the identical network agreement by next equipment with this transferring equipment is forwarded to the communication information next equipment of this transferring equipment;
The destination device port unit will be received from the communication information of an equipment and deliver to the destination device applying unit, carry out processing data information.
7. method according to claim 6 is characterized in that, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
Source device applying unit traverses network topology diagram is known the position of destination device, and tissue obtains by the achieve the goal network path of equipment applying unit of source device applying unit.
8. method according to claim 6 is characterized in that, described source device applying unit obtains the network path that arrives the destination device applying unit and is specially:
The source device applying unit sends source device and destination device information to intermediate equipment, receive that intermediate equipment returns by the achieve the goal network path of equipment of source device.
9. method according to claim 6 is characterized in that, described transferring equipment port unit obtains the position of next equipment of this transferring equipment according to the network path in the communication information that is received from an equipment before, also comprises:
Described transferring equipment port unit is according to the network path in the described communication information, determines it self is not last equipment in this network path.
10. method according to claim 7 is characterized in that, before the communication information that described destination device port unit will be received from an equipment is delivered to the destination device applying unit, also comprises:
Described destination device port unit is determined certainly as last equipment in this network path according to the network path in the described communication information.
11. method according to claim 7 is characterized in that, described method also comprises:
When between the port unit of coupled next equipment communication failure taking place in the arbitrary device port unit in the described network path and this network path, this equipment tissue returns the network path of the applying unit of source device, feedback error information.
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| CN200910224386A CN101714945A (en) | 2009-12-02 | 2009-12-02 | System and method for realizing internetwork communication |
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| CN200910224386A CN101714945A (en) | 2009-12-02 | 2009-12-02 | System and method for realizing internetwork communication |
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| CN103929357A (en) * | 2013-01-11 | 2014-07-16 | 浙江大华技术股份有限公司 | Data transmission method and network equipment |
| WO2017162043A1 (en) * | 2016-03-22 | 2017-09-28 | 阿里巴巴集团控股有限公司 | Access method, configuration method and apparatus used for inter-device service |
| CN108347713A (en) * | 2012-04-27 | 2018-07-31 | 交互数字专利控股公司 | WTRU and the method executed by WTRU |
| CN110557387A (en) * | 2019-08-29 | 2019-12-10 | 浙江大搜车软件技术有限公司 | cross-network equipment communication method, device, system, server and readable storage medium |
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| CN114301826A (en) * | 2021-12-23 | 2022-04-08 | 杭州数梦工场科技有限公司 | Message transmission method and device |
| CN115632979A (en) * | 2022-12-19 | 2023-01-20 | 成都菁蓉联创科技有限公司 | Communication data forwarding method, system and storage medium |
| US11903075B2 (en) | 2012-04-27 | 2024-02-13 | Interdigital Patent Holdings, Inc. | Resource allocation for device-to-device (D2D) communications |
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| US11903075B2 (en) | 2012-04-27 | 2024-02-13 | Interdigital Patent Holdings, Inc. | Resource allocation for device-to-device (D2D) communications |
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