CN104980488A

CN104980488A - Message transfer method, related devices and communication system

Info

Publication number: CN104980488A
Application number: CN201510126208.2A
Authority: CN
Inventors: 朱建平; 刘诗毅; 李希源; 王红岩
Original assignee: Shenzhen Tencent Computer Systems Co Ltd
Current assignee: Shenzhen Tencent Computer Systems Co Ltd
Priority date: 2015-03-20
Filing date: 2015-03-20
Publication date: 2015-10-14
Anticipated expiration: 2035-03-20
Also published as: CN104980488B

Abstract

The embodiments of the invention disclose a message transfer method, related devices and a communication system. The message transfer method comprises the steps that: a transfer component Ts deployed in a source edge node receives a request message, wherein the request message carries a service identifier si; the transfer component Ts calls a service plug-in spi corresponding to the service identifier si to carry out service logic processing on the request message to obtain a request message subjected to service logic processing; the transfer component Ts packages the request message subjected to service logic processing with a tunnel head to obtain a request message packaged with the tunnel head; and the transfer component Ts transmits the request message packaged with the tunnel head to a next-hop node of the source edge node in the transfer route. According to the technical scheme provided by the embodiment of the invention, the multi-service capability of nodes in the data transmitting network is increased, and the cost and code implementation complexity in the multi-service support scene are reduced.

Description

Message transmitting method and relevant apparatus and communication system

Technical field

The present invention relates to networking technology area, specifically relate generally to a kind of message transmitting method and relevant apparatus and communication system.

Background technology

Along with the develop rapidly of Internet technology and terminal technology, many Internet services are had to relate to network data transmission and data interaction.Accelerating the transmission of data between each network node, is the important means improved service quality and promote Consumer's Experience.

In the prior art, message circulates between the node of data transmission network (such as content distributing network etc.), participate in the iso-ip Internetworking protocol ISO-IP (IP of node (such as source fringe node, transit node and object fringe node etc.) by message of circulation, Internet Protocol) address identifies business belonging to message, and then business determines the business processing logic of message and the transmission path etc. in data transmission network belonging to message.Processed the service logic and transmission logic etc. of the message of multiple business by a Business Processing transport module in prior art.

The present inventor finds in research and practice process; at least there is following technical problem in prior art: usually the code of its Business Processing transport module can be caused to become complexity when the business of the node support participating in circulation is more in prior art high, and upgrade its Business Processing transport module code after working as the business needing to suspend node when supported business changes.

Summary of the invention

The embodiment of the present invention provides message transmitting method and relevant apparatus and communication system, supports multiple services ability, reduce the cost under Supporting multi-services scene and codes implement complexity to the node strengthened in data transmission network.

The embodiment of the present invention provides a kind of method of message transmission on the one hand, comprising:

The transmission assembly Ts that disposes in the fringe node of source receives request message, and described request message carries service identification si, deploys described transmission assembly Ts and N number of business plug-in unit in the fringe node of described source, described N be greater than 1 integer;

Described transmission assembly Ts calls the business plug-in unit spi corresponding with described service identification si and carries out business logic processing to obtain the request message after business logic processing to described request message, and described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit;

Described transmission assembly Ts carries out tunnel head encapsulation process to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, wherein, the path description of the transmission path carrying the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in;

Next-hop node from described transmission assembly Ts to the described source fringe node on described transmission path send described in carry out the request message after tunnel head encapsulation.

Second aspect present invention provides a kind of method of message transmission, comprising:

The transmission assembly Td that disposes in object fringe node receives request message, and described request message carries service identification si, wherein, deploys a described transmission assembly Td and M business plug-in unit in described object fringe node, described M be greater than 1 integer;

Described transmission assembly Td carries out tunnel head decapsulation process to obtain the request message of decapsulation tunnel head to described request message; The request message that described transmission assembly Td calls the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing, wherein, described business plug-in unit dpi is one of them the business plug-in unit in described M business plug-in unit.

Third aspect present invention provides a provenance fringe node, comprising:

Transmission assembly and N number of business plug-in unit, described N be greater than 1 integer;

Wherein, described transmission assembly is for receiving the request message carrying service identification si; Call the business plug-in unit spi corresponding with described service identification si and carry out business logic processing to obtain the request message after business logic processing to described request message, described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit;

Described business plug-in unit spi, for calling described transmission assembly, tunnel head encapsulation process is carried out to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, wherein, the path description of the transmission path carrying the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in;

Described transmission assembly also carries out the request message after tunnel head encapsulation described in sending to the next-hop node of the described source fringe node on described transmission path.

Fourth aspect present invention provides a kind of object fringe node, comprising:

Transmission assembly and M business plug-in unit, described M be greater than 1 integer;

Described transmission assembly is used for, and receives the request message carrying service identification si; Tunnel head decapsulation process is carried out to obtain the request message of decapsulation tunnel head to described request message; The request message calling the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing;

Described business plug-in unit dpi, for under the calling of described transmission assembly, to described decapsulation, the request message of tunnel head carries out business logic processing to obtain the request message after business logic processing, and described business plug-in unit dpi is one of them the business plug-in unit in described M business plug-in unit.

Fifth aspect present invention provides a kind of communication system, comprising:

Source fringe node, at least one transit node and object fringe node;

Wherein, the transmission assembly Ts disposed in the fringe node of described source, for receiving request message, described request message carries service identification si, and deploy described transmission assembly Ts and N number of business plug-in unit in the fringe node of described source, described N is positive integer; Described transmission assembly Ts also for, call the business plug-in unit spi corresponding with described service identification si and carry out business logic processing to obtain the request message after business logic processing to described request message, described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit; Tunnel head encapsulation process is carried out to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, wherein, the path description of the transmission path carrying the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in; To the described source fringe node on described transmission path next-hop node send described in carry out the request message after tunnel head encapsulation.

Wherein, the transmission assembly Tz disposed in described transit node, for receiving the request message carrying described service identification si, the next-hop node to this transit node on described transmission path sends described request message;

The transmission assembly Td disposed in described object fringe node, for receiving request message, described request message carries service identification si, and wherein, deploy a described transmission assembly Td and M business plug-in unit in described object fringe node, described M is positive integer; Described transmission assembly Td also for, tunnel head decapsulation process is carried out to obtain the request message of decapsulation tunnel head to described request message; The request message of the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing, wherein, described business plug-in unit dpi is one of them the business plug-in unit in described M business plug-in unit.

Can find out, in embodiment of the present invention scheme, transmission assembly Ts and N number of business plug-in unit is disposed in source/destination fringe node, wherein, business logic processing is responsible for by business plug-in unit, transmission assembly Ts is responsible for transmission logic process, transmission assembly Ts can call the business plug-in unit corresponding with service identification and carry out business logic processing to obtain the request message after business logic processing to request message, this is just equivalent to relieve the code coupled relation realized between the code of service logic and the code realizing transmission logic, and prior art processes service logic and the transmission logic of the message of multiple business by a Business Processing transport module, it is direct code coupled relation between its service logic and code of transmission logic.The such scheme of the present embodiment is by removing the code coupled relation between the code of service logic and the code of transmission logic cleverly, make each business plug-in unit of responsible business logic processing no longer can need to pay close attention to the specific implementation of transmission logic process, this is just conducive to the design complexities of simplification business plug-in unit, when supported business changes, only can need newly-increased or amendment related service plug-in unit, affect other business hardly, after prior art then needs to suspend operation, code update is carried out to unique Business Processing transport module.Generally speaking, the such scheme of the present embodiment is conducive to the node strengthened in data transmission network and supports multiple services ability, is conducive to the cost under reduction Supporting multi-services scene and codes implement complexity.

Term " first ", " second ", " the 3rd " " 4th " etc. (if existence) in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein such as can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.

For ease of the following proposal of the better embodiment of the present invention, below some concepts that may introduce simply are introduced.

Content distributing network (CDN, Content Delivery Network) be in Internet, increase the new network architecture of one deck, the content of server in station can be published to the network " edge " closest to user, user can be made to obtain required content nearby, to solve the network congestion situation of Internet, improve the response speed of user's access websites.

Below by several possible network architecture of accompanying drawing citing, some technical schemes of some embodiments of the present invention specifically can be implemented based on the network architecture shown in Fig. 1-a ~ Fig. 1-d citing, are certainly also not limited to the network architecture of above-mentioned citing.

Wherein, source fringe node can be CDN or other nodes accelerating in transmission network, and source fringe node can be disposed by business service business and provide.Wherein, object fringe node can be CDN or other nodes accelerating in transmission network, and source fringe node can be disposed by business service business and provide.

Wherein, user terminal or service server can be connected to source fringe node.Source fringe node, several transit nodes (if existence) and object fringe node can form one and accelerate transmission path, and the acceleration transmission path of formation can provide acceleration transmission service for the message (as request message, response message etc.) from user terminal or service server.

Such as in the network architecture shown in Fig. 1-d, router-level topology server can be used for calculating more excellent or optimum transmission path, can calculate optimum between each source fringe node in transmission network to each object fringe node or more excellent transmission path according to the information such as the network RTT gathered, packet loss, availability and capacity.Distribution node, for distributing transmission path, gets up-to-date transmission path from router-level topology server, and by reporting node to be pushed to each source fringe node (can be referred to as under some scene to accelerate source point); Further, source fringe node regularly can report the quantity of operation image data of transmission path to each object fringe node, and quantity of operation image data passes to distribution node by reporting node.Report node can transfer transmission path distribution and transmission path report, cross operator transmission etc. can be optimized.

Described from the angle of source fringe node below.

An embodiment of message transmitting method of the present invention, wherein, a kind of message transmitting method can comprise the transmission assembly Ts disposed in the fringe node of source and receive request message, wherein, described request message carries service identification si, deploy described transmission assembly Ts and N number of business plug-in unit in the fringe node of described source, described N be greater than 1 integer; Described transmission assembly Ts calls the business plug-in unit spi corresponding with described service identification si and carries out business logic processing to obtain the request message after business logic processing to described request message, and described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit; Described transmission assembly Ts carries out tunnel head encapsulation process to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, described in encapsulate in the tunnel head of the request message of tunnel head the path description of the transmission path carrying the described request message that the object IP address based on described request message obtains; Next-hop node from described transmission assembly Ts to the described source fringe node on described transmission path send described in carry out the request message after tunnel head encapsulation.

Refer to Fig. 1-e, Fig. 1-e is the schematic flow sheet of a kind of message transmitting method that one embodiment of the invention provides.As shown in Fig. 1-e, a kind of message transmitting method that one embodiment of the invention provides can comprise following content:

101, the transmission assembly Ts disposed in the fringe node of source receives request message.Wherein, described request message carries service identification si.Wherein, in the fringe node of described source, deploy described transmission assembly Ts and N number of business plug-in unit, described N be greater than 1 integer.

Optionally, described N such as can equal 2,3,4,5,7,10,20,30,43,50 or other integers being greater than 1.

Wherein, the transmission assembly Ts disposed in the fringe node of source can receive the request message of user terminal or server.

102, described transmission assembly Ts calls the business plug-in unit spi corresponding with described service identification si and carries out business logic processing to obtain the request message after business logic processing to described request message.Described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit.

Wherein, business plug-in unit spi carries out business logic processing to described request message and is mainly concerned with and carries out application layer business logic processing etc. to described request message.

Under the calling of described transmission assembly Ts, business plug-in unit spi carries out business logic processing to obtain the request message after business logic processing to described request message.

Optionally, in possible execution modes more of the present invention, can be relation one to one between service identification and business plug-in unit, the business plug-in unit that is different service identifications is corresponding different.Or the corresponding business plug-in unit of single service identification, certain several service identification may correspond to same business plug-in unit, the corresponding same business plug-in unit of multiple service identifications of such as corresponding identical services type, it can be such as relation one to one between type of service and business plug-in unit, that is different types of service may correspond to different business plug-in units, under this scene, the business plug-in unit spi that described service identification si is corresponding, can be regarded as is business plug-in unit spi corresponding to type of service belonging to described service identification si.

103, described transmission assembly Ts carries out tunnel head encapsulation process to obtain encapsulating the request message of tunnel head to the request message after described business logic processing.Wherein, the path description of the transmission path carrying the described request message that the object IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in.

Optionally, in possible execution modes more of the present invention, the path description of the transmission path (transmission path in such as accelerating network or CND network) of the described request message that can obtain based on the object IP address of described request message (object IP address herein can for the purpose of the IP address of fringe node), the path description of the transmission path of the described request message that specifically can only obtain based on the object IP address of described request message, or can based on the path description of the transmission path of the object IP address of the IP address of source fringe node and described request message and the described request message obtained, the path description of the transmission path of the described request message that certainly also can obtain based on object IP address and the out of Memory of described request message.

104, next-hop node from described transmission assembly Ts to the described source fringe node on described transmission path send described in carry out the request message after tunnel head encapsulation.

Wherein, the next-hop node of the described source fringe node on described transmission path may be the transit node between source fringe node and object fringe node, also may be exactly object fringe node (such as there is not transit node).Wherein, when there is at least 1 transit node between source fringe node and object fringe node, the transmission assembly Tz disposed in transit node can receive the request message carrying described service identification si, and can send described request message to the next-hop node of this transit node on described transmission path.

Can find out, in the technical scheme of the present embodiment, transmission assembly Ts and N number of business plug-in unit is disposed in the fringe node of source, wherein, business logic processing is responsible for by business plug-in unit, transmission assembly Ts is responsible for transmission logic process, transmission assembly Ts can call the business plug-in unit corresponding with service identification and carry out business logic processing to obtain the request message after business logic processing to request message, this is just equivalent to relieve the code coupled relation realized between the code of service logic and the code realizing transmission logic, and prior art processes service logic and the transmission logic of the message of multiple business by a Business Processing transport module, it is direct code coupled relation between its service logic and code of transmission logic.The such scheme of the present embodiment is by removing the code coupled relation between the code of service logic and the code of transmission logic cleverly, make each business plug-in unit of responsible business logic processing no longer can need to pay close attention to the specific implementation of transmission logic process, this is just conducive to the design complexities of simplification business plug-in unit, when supported business changes, only can need newly-increased or amendment related service plug-in unit, affect other business hardly, after prior art then needs to suspend operation, code update is carried out to unique Business Processing transport module.Generally speaking, the such scheme of the present embodiment is conducive to the node strengthened in data transmission network and supports multiple services ability, is conducive to the cost under reduction Supporting multi-services scene and codes implement complexity.

Optionally, in some possible execution modes of the present invention, transmission assembly Ts can call and be deployed in the object IP address etc. of the route agent's assembly in the fringe node of described source based on described request message, obtains the path description of the transmission path of described request message from described router-level topology server.

Optionally, in some possible execution modes of the present invention, described method also comprises: described transmission assembly Ts receives the response message of described request message; Described transmission assembly Ts carries out tunnel head decapsulation process to obtain the response message of decapsulation tunnel head to described response message; The response message that described transmission assembly Ts calls described business plug-in unit spi tunnel head to described decapsulation carries out business logic processing to obtain the response message after business logic processing; Described transmission assembly Ts sends the response message after described business logic processing.

Optionally, in some possible execution modes of the present invention, the tunnel head of described request message carries virtual connections mark.

Described from the angle of object fringe node below.

Another embodiment of message transmitting method of the present invention, wherein, another kind of message transmitting method can comprise the transmission assembly Td disposed in object fringe node and receive request message, described request message carries service identification si, wherein, deploy a described transmission assembly Td and M business plug-in unit in described object fringe node, described M be greater than 1 integer; Described transmission assembly Td carries out tunnel head decapsulation process to obtain the request message of decapsulation tunnel head to described request message; The request message that described transmission assembly Td calls the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing, and described business plug-in unit dpi is one of them the business plug-in unit in described M business plug-in unit.

Refer to Fig. 2, Fig. 2 is the schematic flow sheet of a kind of message transmitting method that another embodiment of the present invention provides.As shown in Figure 2, a kind of message transmitting method that an alternative embodiment of the invention provides can comprise following content:

201, the transmission assembly Td disposed in object fringe node receives request message.

Described request message carries service identification si, wherein, deploys a described transmission assembly Td and M business plug-in unit in described object fringe node, described M be greater than 1 integer.

Optionally, described M such as can equal 2,3,4,5,7,10,21,30,47,50 or other integers being greater than 1.

202, described transmission assembly Td carries out tunnel head decapsulation process to obtain the request message of decapsulation tunnel head to described request message.

203, the request message that described transmission assembly Td calls the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing.

Wherein, described business plug-in unit dpi is one of them the business plug-in unit in described M business plug-in unit.

Further, if object fringe node is not service server, so described transmission assembly Td also can send the request message after described business logic processing.Such as described transmission assembly Td also can send the request message after described business logic processing to user terminal or service server.

Can find out, in the technical scheme of the present embodiment, transmission assembly Ts and N number of business plug-in unit is disposed in object fringe node, wherein, business logic processing is responsible for by business plug-in unit, transmission assembly Ts is responsible for transmission logic process, transmission assembly Ts can call the business plug-in unit corresponding with service identification and carry out business logic processing to obtain the request message after business logic processing to request message, this is just equivalent to relieve the code coupled relation realized between the code of service logic and the code realizing transmission logic, and prior art processes service logic and the transmission logic of the message of multiple business by a Business Processing transport module, it is direct code coupled relation between its service logic and code of transmission logic.The such scheme of the present embodiment is by removing the code coupled relation between the code of service logic and the code of transmission logic cleverly, make each business plug-in unit of responsible business logic processing no longer can need to pay close attention to the specific implementation of transmission logic process, this is just conducive to the design complexities of simplification business plug-in unit, when supported business changes, only can need newly-increased or amendment related service plug-in unit, affect other business hardly, after prior art then needs to suspend operation, code update is carried out to unique Business Processing transport module.Generally speaking, the such scheme of the present embodiment is conducive to the node strengthened in data transmission network and supports multiple services ability, is conducive to the cost under reduction Supporting multi-services scene and codes implement complexity.

Optionally, in possible execution modes more of the present invention, in the tunnel head of described request message, carry the path description of the transmission path of the described request message that the object IP address based on described request message obtains.Wherein, described method also can comprise further: described transmission assembly Td receives the response message of described request message; Described transmission assembly Td calls and carries out business logic processing to obtain the response message after business logic processing with described business plug-in unit dpi to described response message; Described transmission assembly Td carries out tunnel head encapsulation process to obtain encapsulating the response message of tunnel head to the response message after described business logic processing; Upper hop node from described transmission assembly Td to the described object fringe node on described transmission path send described in carry out the response message after tunnel head encapsulation.

Optionally, in possible execution modes more of the present invention, in the tunnel head of described request message, carry the path description of the transmission path of the described request message that the object IP address based on described request message obtains.Wherein, described method also can comprise further: described business plug-in unit dpi generates the response message of described request message; Described transmission assembly Td carries out tunnel head encapsulation process to obtain encapsulating the response message of tunnel head to described response message; Upper hop node from described transmission assembly Td to the described object fringe node on described transmission path send described in carry out the response message after tunnel head encapsulation.

Optionally, in possible execution modes more of the present invention, also carry virtual connections mark in the tunnel head of described request message, described method also comprises: described transmission assembly Td records the corresponding relation between described virtual connections mark and the path description of described transmission path.

Optionally, in possible execution modes more of the present invention, described response message carries described service identification si.

Optionally, in some possible execution modes of the present invention, the tunnel head of described response message carries virtual connections mark.

For ease of better understanding and implement the such scheme of the embodiment of the present invention, some embody rule scenes of illustrating below are described.

Refer to Fig. 3-a, Fig. 3-a is the schematic flow sheet of a kind of message transmitting method that an alternative embodiment of the invention provides.Wherein, scheme shown in Fig. 3-a can be implemented based on the network architecture shown in Fig. 1-a or 1-b or 1-d.

As shown in Fig. 3-a, a kind of message transmitting method that an alternative embodiment of the invention provides can comprise following content:

301, user terminal sends the request message carrying service identification si to source fringe node.

302, the transmission assembly Ts disposed in the fringe node of source receives request message.

Described transmission assembly Ts calls the business plug-in unit spi corresponding with described service identification si and carries out business logic processing to obtain the request message after business logic processing to described request message.Described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit.

Wherein, in the fringe node of described source, deploy described transmission assembly Ts and N number of business plug-in unit, described N be greater than 1 integer.

Under the calling of described transmission assembly Ts (transmission assembly Ts calls described business plug-in unit spi by the calling interface of described business plug-in unit spi), business plug-in unit spi carries out business logic processing to obtain the request message after business logic processing to described request message.

Optionally, in possible execution modes more of the present invention, can be relation one to one between service identification and business plug-in unit, such as, shown in Fig. 3-b illustrates, the business plug-in unit that is different service identifications is corresponding different.Such as, or the corresponding business plug-in unit of single service identification, certain several service identification may correspond to same business plug-in unit, shown in Fig. 3-c illustrates.Such as, the corresponding same business plug-in unit of multiple service identifications of corresponding identical services type.Such as, between type of service and business plug-in unit can be relation one to one.That is, different types of service may correspond to different business plug-in units, and under this scene, the business plug-in unit spi that described service identification si is corresponding, can be regarded as is business plug-in unit spi corresponding to type of service belonging to described service identification si.

303, described transmission assembly Ts carries out tunnel head encapsulation process to obtain encapsulating the request message of tunnel head to the request message after described business logic processing.Wherein, the path description of the transmission path carrying the described request message that the object IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in.

Wherein, described transmission assembly Ts under the calling of business plug-in unit spi (business plug-in unit spi calls described transmission assembly Ts by the calling interface of described transmission assembly Ts), can carry out tunnel head encapsulation process to obtain encapsulating the request message of tunnel head to the request message after described business logic processing.

Wherein, the data structure of the tunnel head of request message as shown in Fig. 3-d citing, can also be not limited to data structure shown in Fig. 3-d citing certainly.

Shown in Fig. 3-d illustrates, the tunnel head of request message can comprise following field:

Evil spirit digital section (Magic Num field),

Bag long word section (len field),

Tunneling protocol version field (head ver field),

Type of message (type field), for identify common message or for calculate RTT ACK message,

Virtual connections identification field (vid field),

Bag sequence number field (seq field),

Source IP address field (src ip field),

Source port field (src port field),

Object IP address field (dst ip field),

Destination interface field (dst port field),

Timestamp field (Time stamp field),

Transmission path field (id1 ~ idn), for the path description of bearer transmission path.Such as usually maximum 8 jump except source fringe node (starting point) and object fringe node (terminal), often jump through 1, node ID is replaced with the IP of node.

304, next-hop node from described transmission assembly Ts to the described source fringe node on described transmission path send described in carry out the request message after tunnel head encapsulation.

Wherein, the next-hop node of the described source fringe node on described transmission path may be the transit node between source fringe node and object fringe node, also may be exactly object fringe node (such as there is not transit node).In the present embodiment, there is the situation of 1 transit node between source fringe node and object fringe node, the transmission assembly Tz disposed in transit node can receive the request message carrying described service identification si, and can send described request message to the next-hop node of this transit node on described transmission path.

305, the transmission assembly Tz disposed in transit node receives the request message carrying described service identification si, and transmission assembly Tz sends described request message to the next-hop node of this transit node on described transmission path.

Optionally, in some possible execution modes of the present invention, transit node can record the mapping relations between virtual connections mark and the path description of transmission path, and concrete example is as used the mapping table shown in Fig. 3-e citing to record mapping relations.

306, the transmission assembly Td disposed in object fringe node receives request message.

Described transmission assembly Td carries out tunnel head decapsulation process to obtain the request message of decapsulation tunnel head to described request message.

307, the request message that described transmission assembly Td calls the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing.

308, described transmission assembly Td sends the request message after described business logic processing to user terminal or service server.

Wherein, described transmission assembly Td under the calling of business plug-in unit dpi (business plug-in unit dpi calls described transmission assembly Td by the calling interface of described transmission assembly Td), can send the request message after described business logic processing to user terminal or service server.

309, the transmission assembly Td disposed in object fringe node receives the response message of request message.

310, transmission assembly Td calls and carries out business logic processing to obtain the response message after business logic processing with described business plug-in unit dpi to described response message.

311, described transmission assembly Td carries out tunnel head encapsulation process to obtain encapsulating the response message of tunnel head to the response message after described business logic processing.

The virtual connections mark etc. that the tunnel head that the tunnel head of response message can carry request message carries.

312, upper hop node from described transmission assembly Td to the described object fringe node on described transmission path send described in carry out the response message after tunnel head encapsulation.

313, the transmission assembly Tz disposed in transit node receives the response message of request message, and transmission assembly Tz can send the response message of described request message to the upper hop node of this transit node on described transmission path.

Optionally, in some possible execution modes of the present invention, transit node, according to the mapping relations between the virtual connections mark of record and the path description of transmission path, determines the upper hop node of this transit node on described transmission path.

314, the transmission assembly Ts disposed in the fringe node of source receives the response message of request message.

Described transmission assembly Ts carries out tunnel head decapsulation process to obtain the response message of decapsulation tunnel head to described response message.

315, the response message that described transmission assembly Ts calls described business plug-in unit spi tunnel head to described decapsulation carries out business logic processing to obtain the response message after business logic processing.

316, described transmission assembly Ts sends the response message after described business logic processing to user terminal or service server.

Can find out, in the technical scheme of the present embodiment, transmission assembly Ts and N number of business plug-in unit is disposed in source fringe node and object fringe node, wherein, business logic processing is responsible for by business plug-in unit, transmission assembly Ts is responsible for transmission logic process, transmission assembly Ts can call the business plug-in unit corresponding with service identification and carry out business logic processing to obtain the request message after business logic processing to request message, this is just equivalent to relieve the code coupled relation realized between the code of service logic and the code realizing transmission logic, and prior art processes service logic and the transmission logic of the message of multiple business by a Business Processing transport module, it is direct code coupled relation between its service logic and code of transmission logic.The such scheme of the present embodiment is by removing the code coupled relation between the code of service logic and the code of transmission logic cleverly, make each business plug-in unit of responsible business logic processing no longer can need to pay close attention to the specific implementation of transmission logic process, this is just conducive to the design complexities of simplification business plug-in unit, when supported business changes, only can need newly-increased or amendment related service plug-in unit, affect other business hardly, after prior art then needs to suspend operation, code update is carried out to unique Business Processing transport module.Generally speaking, the such scheme of the present embodiment is conducive to the node strengthened in data transmission network and supports multiple services ability, is conducive to the cost under reduction Supporting multi-services scene and codes implement complexity.

Refer to Fig. 4, Fig. 4 is the schematic flow sheet of a kind of message transmitting method that an alternative embodiment of the invention provides.Wherein, Fig. 4 illustrate shown scheme can based on Fig. 1-c illustrate shown in the network architecture in implement.

As shown in Figure 4, a kind of message transmitting method that an alternative embodiment of the invention provides can comprise following content:

401, user terminal sends the request message carrying service identification si to source fringe node.

402, the transmission assembly Ts disposed in the fringe node of source receives request message.

403, described transmission assembly Ts carries out tunnel head encapsulation process to obtain encapsulating the request message of tunnel head to the request message after described business logic processing.Wherein, the path description of the transmission path carrying the described request message that the object IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in.

404, next-hop node from described transmission assembly Ts to the described source fringe node on described transmission path send described in carry out the request message after tunnel head encapsulation.

405, the transmission assembly Tz disposed in transit node receives the request message carrying described service identification si, and transmission assembly Tz sends described request message to the next-hop node of this transit node on described transmission path.

Optionally, in some possible execution modes of the present invention, transit node can record the mapping relations between virtual connections mark and the path description of transmission path.

406, the transmission assembly Td disposed in object fringe node receives request message.

407, the request message that described transmission assembly Td calls the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing.

408, in object fringe node, business plug-in unit dpi generates the response message of request message.

409, described transmission assembly Td carries out tunnel head encapsulation process to obtain encapsulating the response message of tunnel head to the response message after described business logic processing.

410, upper hop node from described transmission assembly Td to the described object fringe node on described transmission path send described in carry out the response message after tunnel head encapsulation.

411, the transmission assembly Tz disposed in transit node receives the response message of request message, and transmission assembly Tz can send the response message of described request message to the upper hop node of this transit node on described transmission path.

412, the transmission assembly Ts disposed in the fringe node of source receives the response message of request message.

413, the response message that described transmission assembly Ts calls described business plug-in unit spi tunnel head to described decapsulation carries out business logic processing to obtain the response message after business logic processing.

414, described transmission assembly Ts sends the response message after described business logic processing to user terminal or service server.

Also be provided for the relevant apparatus implementing such scheme below.

See Fig. 5, the embodiment of the present invention provides a provenance fringe node 500, comprising:

Transmission assembly 510 and N number of business plug-in unit 520.

Wherein, described transmission assembly 510 is for receiving the request message carrying service identification si; Call the business plug-in unit spi corresponding with described service identification si and carry out business logic processing to obtain the request message after business logic processing to described request message, described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit.

Described business plug-in unit spi, for calling described transmission assembly 510, tunnel head encapsulation process is carried out to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, wherein, the path description of the transmission path carrying the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in.

Described transmission assembly 510 also carries out the request message after tunnel head encapsulation described in sending to the next-hop node of the described source fringe node on described transmission path.

Optionally, in some possible execution modes of the present invention, described transmission assembly also for, call the object iso-ip Internetworking protocol ISO-IP address of route agent's assembly based on described request message, obtain the path description of the transmission path of described request message from described router-level topology server.

Optionally, in some possible execution modes of the present invention, described transmission assembly also for, receive the response message of described request message; Tunnel head decapsulation process is carried out to obtain the response message of decapsulation tunnel head to described response message; The response message calling described business plug-in unit spi tunnel head to described decapsulation carries out business logic processing to obtain the response message after business logic processing; Send the response message after described business logic processing.

Be understandable that, the function of each functional module of the source fringe node 500 of the present embodiment can according to the method specific implementation in said method embodiment, and its specific implementation process with reference to the associated description of said method embodiment, can repeat no more herein.

See Fig. 6, the embodiment of the present invention also provides a kind of object fringe node, can comprise:

Transmission assembly 610 and M business plug-in unit 620;

Described transmission assembly 610 for, receive and carry the request message of service identification si; Tunnel head decapsulation process is carried out to obtain the request message of decapsulation tunnel head to described request message; The request message calling the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing;

Optionally, in some possible execution modes of the present invention, described transmission assembly 610 is also for sending the request message after described business logic processing.

Optionally, in some possible execution modes of the present invention, in the tunnel head of described request message, carry the path description of the transmission path of the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains;

Wherein, described transmission assembly also for, receive the response message of described request message; Call, with described business plug-in unit dpi, business logic processing is carried out to obtain the response message after business logic processing to described response message; Tunnel head encapsulation process is carried out to obtain encapsulating the response message of tunnel head to the response message after described business logic processing; To the described object fringe node on described transmission path upper hop node send described in carry out the response message after tunnel head encapsulation.

Wherein, described business plug-in unit dpi also for, generate the response message of described request message; Call described transmission assembly and tunnel head encapsulation process is carried out to obtain encapsulating the response message of tunnel head to described response message;

Described transmission assembly also for, to the described object fringe node on described transmission path upper hop node send described in carry out the response message after tunnel head encapsulation.

Optionally, in some possible execution modes of the present invention, also carry in the tunnel head of described request message virtual connections mark, described transmission assembly 610 also for, record described virtual connections mark with the path description of described transmission path between corresponding relation.

Optionally, in some possible execution modes of the present invention, described response message carries described service identification si.

Be understandable that, the function of each functional module of the object fringe node 600 of the present embodiment can according to the method specific implementation in said method embodiment, and its specific implementation process with reference to the associated description of said method embodiment, can repeat no more herein.

See the structured flowchart that Fig. 7, Fig. 7 are the source fringe nodes 700 that another embodiment of the present invention provides.

Wherein, source fringe node 700 can comprise: at least 1 processor 701, at least 1 network interface 704, memory 705, at least 1 communication bus 702.Communication bus 702 is for realizing the connection communication between these assemblies.

Wherein, source fringe node 700 also can comprise user interface 703, specifically can comprise: display (such as touch-screen, LCD, CRT, holographic imaging or projection etc.), pointing device (such as mouse, trace ball (trackball) touch-sensitive plate or touch-screen etc.), camera and/or sound pick up equipment etc.

Wherein, memory 705 can comprise read-only memory and random access memory, and provides instruction and data to processor 701.A part in memory 705 can also comprise nonvolatile RAM etc.

In some embodiments, memory 705 stores following element, executable module or data structure, or their subset, or their superset: transmission assembly 710 and N number of business plug-in unit 720 etc.

Wherein, described transmission assembly 710 is for receiving the request message carrying service identification si; Call the business plug-in unit spi corresponding with described service identification si and carry out business logic processing to obtain the request message after business logic processing to described request message, described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit.

Described business plug-in unit spi, for calling described transmission assembly 710, tunnel head encapsulation process is carried out to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, wherein, the path description of the transmission path carrying the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in.

Described transmission assembly 710 also carries out the request message after tunnel head encapsulation described in sending to the next-hop node of the described source fringe node on described transmission path.

See the structured flowchart that Fig. 8, Fig. 8 are the object fringe nodes 800 that another embodiment of the present invention provides.

Wherein, object fringe node 800 can comprise: at least 1 processor 801, at least 1 network interface 804, memory 805, at least 1 communication bus 802.Communication bus 802 is for realizing the connection communication between these assemblies.

Wherein, object fringe node 800 also can comprise user interface 803, specifically can comprise: display (such as touch-screen, LCD, CRT, holographic imaging or projection etc.), pointing device (such as mouse, trace ball (trackball) touch-sensitive plate or touch-screen etc.), camera and/or sound pick up equipment etc.

Wherein, memory 805 can comprise read-only memory and random access memory, and provides instruction and data to processor 801.A part in memory 805 can also comprise nonvolatile RAM etc.

In some embodiments, memory 805 stores following element, executable module or data structure, or their subset, or their superset: transmission assembly 810 and N number of business plug-in unit 820 etc.

Described transmission assembly 810 for, receive and carry the request message of service identification si; Tunnel head decapsulation process is carried out to obtain the request message of decapsulation tunnel head to described request message; The request message calling the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing;

Optionally, in some possible execution modes of the present invention, described transmission assembly 810 is also for sending the request message after described business logic processing.

Optionally, in some possible execution modes of the present invention, also carry in the tunnel head of described request message virtual connections mark, described transmission assembly 810 also for, record described virtual connections mark with the path description of described transmission path between corresponding relation.

See Fig. 9, the embodiment of the present invention also provides a kind of communication system, comprising:

Source fringe node 910, at least one transit node 920 and object fringe node 930.

The transmission assembly Ts disposed in described source fringe node 910, for receiving request message, described request message carries service identification si, and deploy described transmission assembly Ts and N number of business plug-in unit in the fringe node of described source, described N is positive integer; Described transmission assembly Ts also for, call the business plug-in unit spi corresponding with described service identification si and carry out business logic processing to obtain the request message after business logic processing to described request message, described business plug-in unit spi is one of them the N number of business plug-in unit in described N number of business plug-in unit; Tunnel head encapsulation process is carried out to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, wherein, the path description of the transmission path carrying the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in; To the described source fringe node on described transmission path next-hop node send described in carry out the request message after tunnel head encapsulation.

Wherein, the transmission assembly Tz disposed in described transit node 920, for receiving the request message carrying described service identification si, the next-hop node to this transit node on described transmission path sends described request message;

The transmission assembly Td disposed in object fringe node 930, for receiving request message, described request message carries service identification si, and wherein, deploy described transmission assembly Td and N number of business plug-in unit in described object fringe node, described N is positive integer; Described transmission assembly Td also for, tunnel head decapsulation process is carried out to obtain the request message of decapsulation tunnel head to described request message; The request message of the business plug-in unit dpi corresponding with described service identification si tunnel head to described decapsulation carries out business logic processing to obtain the request message after business logic processing, wherein, described business plug-in unit dpi is one of them the N number of business plug-in unit in described N number of business plug-in unit.

Wherein, described transmission assembly Td, also for receiving the response message of described request message; Call, with described business plug-in unit dpi, business logic processing is carried out to obtain the response message after business logic processing to described response message; Tunnel head encapsulation process is carried out to obtain encapsulating the response message of tunnel head to the response message after described business logic processing; To the described object fringe node on described transmission path upper hop node send described in carry out the response message after tunnel head encapsulation;

Or described business plug-in unit dpi is also for generating the response message of described request message; Described transmission assembly Td is also for carrying out tunnel head encapsulation process to obtain encapsulating the response message of tunnel head to described response message; To the described object fringe node on described transmission path upper hop node send described in carry out the response message after tunnel head encapsulation.

Can find out, in the technical scheme of the present embodiment, transmission assembly Ts and N number of business plug-in unit is disposed in source/destination fringe node, wherein, business logic processing is responsible for by business plug-in unit, transmission assembly Ts is responsible for transmission logic process, transmission assembly Ts can call the business plug-in unit corresponding with service identification and carry out business logic processing to obtain the request message after business logic processing to request message, this is just equivalent to relieve the code coupled relation realized between the code of service logic and the code realizing transmission logic, and prior art processes service logic and the transmission logic of the message of multiple business by a Business Processing transport module, it is direct code coupled relation between its service logic and code of transmission logic.The such scheme of the present embodiment is by removing the code coupled relation between the code of service logic and the code of transmission logic cleverly, make each business plug-in unit of responsible business logic processing no longer can need to pay close attention to the specific implementation of transmission logic process, this is just conducive to the design complexities of simplification business plug-in unit, when supported business changes, only can need newly-increased or amendment related service plug-in unit, affect other business hardly, after prior art then needs to suspend operation, code update is carried out to unique Business Processing transport module.Generally speaking, the such scheme of the present embodiment is conducive to the node strengthened in data transmission network and supports multiple services ability, is conducive to the cost under reduction Supporting multi-services scene and codes implement complexity.

The embodiment of the present invention also provides a kind of computer-readable storage medium, and wherein, this computer-readable storage medium can have program stored therein, and comprises the part or all of step of any one message transmitting method recorded in said method embodiment when this program performs.

It should be noted that, for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.

In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.

In several embodiments that the application provides, should be understood that, disclosed device, the mode by other realizes.Such as, device embodiment described above is only schematic, the such as division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical or other form.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.

If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprises all or part of step of some instructions in order to make a computer equipment (can be personal computer, server or the network equipment etc.) perform method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), portable hard drive, magnetic disc or CD etc. various can be program code stored medium.

The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1-a ~ Fig. 1-d is the schematic diagram of a kind of network architecture that the embodiment of the present invention provides;

Fig. 1-e is the schematic flow sheet of a kind of message transmitting method that the embodiment of the present invention provides;

Fig. 2 is the schematic flow sheet of the another kind of message transmitting method that the embodiment of the present invention provides;

Fig. 3-a is the schematic flow sheet of the another kind of message transmitting method that the embodiment of the present invention provides;

Fig. 3-b ~ Fig. 3-c is the schematic diagram of the mapping relations between the another kind of service identification that provides of the embodiment of the present invention and business plug-in unit;

Fig. 3-d is the structural representation of the tunnel head of the message that the embodiment of the present invention provides;

Fig. 3-e is the schematic diagram of corresponding relation between the virtual connections mark that provides of the embodiment of the present invention with path description;

Fig. 4 is the schematic flow sheet of the another kind of message transmitting method that the embodiment of the present invention provides;

Fig. 5 is the schematic diagram of the provenance fringe node that the embodiment of the present invention provides;

Fig. 6 is the schematic diagram of a kind of object fringe node that the embodiment of the present invention provides;

Fig. 7 is the schematic diagram of another provenance fringe node that the embodiment of the present invention provides;

Fig. 8 is the schematic diagram of the another kind of object fringe node that the embodiment of the present invention provides;

Fig. 9 is the schematic diagram of the communication system that the embodiment of the present invention provides.

Embodiment

Support multiple services ability to the node strengthened in data transmission network, reduce the cost under Supporting multi-services scene and codes implement complexity.

The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.

Below be described in detail respectively.

Claims

1. a method for message transmission, is characterized in that, comprising:

2. method according to claim 1, is characterized in that,

Described method also comprises: described transmission assembly Ts calls and is deployed in the object iso-ip Internetworking protocol ISO-IP address of the route agent's assembly in the fringe node of described source based on described request message, obtains the path description of the transmission path of described request message from described router-level topology server.

3. method according to claim 1 and 2, is characterized in that,

Described method also comprises:

Described transmission assembly Ts receives the response message of described request message; Described transmission assembly Ts carries out tunnel head decapsulation process to obtain the response message of decapsulation tunnel head to described response message; The response message that described transmission assembly Ts calls described business plug-in unit spi tunnel head to described decapsulation carries out business logic processing to obtain the response message after business logic processing; Described transmission assembly Ts sends the response message after described business logic processing.

4. the method according to any one of claims 1 to 3, is characterized in that, the tunnel head of described request message carries virtual connections mark.

5. a method for message transmission, is characterized in that, comprising:

6. method according to claim 5, is characterized in that,

Described method also comprises:

Described transmission assembly Td sends the request message after described business logic processing.

7. the method according to claim 5 or 6, is characterized in that, carries the path description of the transmission path of the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains in the tunnel head of described request message;

Wherein, described method also comprises:

Described transmission assembly Td receives the response message of described request message;

Described transmission assembly Td calls and carries out business logic processing to obtain the response message after business logic processing with described business plug-in unit dpi to described response message;

Described transmission assembly Td carries out tunnel head encapsulation process to obtain encapsulating the response message of tunnel head to the response message after described business logic processing;

Upper hop node from described transmission assembly Td to the described object fringe node on described transmission path send described in carry out the response message after tunnel head encapsulation.

8. the method according to claim 5 or 6, is characterized in that, carries the path description of the transmission path of the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains in the tunnel head of described request message;

Wherein, described method also comprises:

Described business plug-in unit dpi generates the response message of described request message;

Described transmission assembly Td carries out tunnel head encapsulation process to obtain encapsulating the response message of tunnel head to described response message;

9. the method according to any one of claim 7 to 8, it is characterized in that, also carry virtual connections mark in the tunnel head of described request message, described method also comprises: described transmission assembly Td records the corresponding relation between described virtual connections mark and the path description of described transmission path.

10. method according to claim 9, is characterized in that, described response message carries described service identification si.

11. 1 provenance fringe nodes, is characterized in that, comprising:

12. source according to claim 11 fringe nodes, it is characterized in that, described transmission assembly also for, call the object iso-ip Internetworking protocol ISO-IP address of route agent's assembly based on described request message, obtain the path description of the transmission path of described request message from described router-level topology server.

13. source fringe nodes according to claim 11 or 12, is characterized in that,

Described transmission assembly also for, receive the response message of described request message; Tunnel head decapsulation process is carried out to obtain the response message of decapsulation tunnel head to described response message; The response message calling described business plug-in unit spi tunnel head to described decapsulation carries out business logic processing to obtain the response message after business logic processing; Send the response message after described business logic processing.

14., according to claim 11 to the source fringe node described in 13 any one, is characterized in that, the tunnel head of described request message carries virtual connections mark.

15. 1 kinds of object fringe nodes, is characterized in that, comprising:

16. object fringe nodes according to claim 15, is characterized in that, described transmission assembly is also for sending the request message after described business logic processing.

17. object fringe nodes according to claim 15 or 16, is characterized in that, carry the path description of the transmission path of the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains in the tunnel head of described request message;

18. object fringe nodes according to claim 15 or 16, is characterized in that, carry the path description of the transmission path of the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains in the tunnel head of described request message;

19. object fringe nodes according to claim 17 or 18, it is characterized in that, also carry in the tunnel head of described request message virtual connections mark, described transmission assembly also for, record described virtual connections mark with the path description of described transmission path between corresponding relation.

20. object fringe nodes according to claim 19, is characterized in that, described response message carries described service identification si.

21. 1 kinds of communication systems, is characterized in that, comprising:

Source fringe node, at least one transit node and object fringe node;

Wherein, the transmission assembly Ts disposed in the fringe node of described source, for receiving request message, described request message carries service identification si, and deploy described transmission assembly Ts and N number of business plug-in unit in the fringe node of described source, described N is positive integer; Described transmission assembly Ts also for, call the business plug-in unit spi corresponding with described service identification si and carry out business logic processing to obtain the request message after business logic processing to described request message, described business plug-in unit spi is one of them the business plug-in unit in described N number of business plug-in unit; Tunnel head encapsulation process is carried out to obtain encapsulating the request message of tunnel head to the request message after described business logic processing, wherein, the path description of the transmission path carrying the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains is encapsulated in the tunnel head of the request message of tunnel head described in; To the described source fringe node on described transmission path next-hop node send described in carry out the request message after tunnel head encapsulation;

22. communication systems according to claim 21, is characterized in that, carry the path description of the transmission path of the described request message that the object iso-ip Internetworking protocol ISO-IP address based on described request message obtains in the tunnel head of described request message;