CN100433628C

CN100433628C - Transmission line resource dynamic management adapting process

Info

Publication number: CN100433628C
Application number: CNB021511845A
Authority: CN
Inventors: 许粤萍; 朱延功; 陈多磊
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2002-12-03
Filing date: 2002-12-03
Publication date: 2008-11-12
Anticipated expiration: 2022-12-03
Also published as: CN1505324A

Abstract

The present invention discloses a dynamic management adaptation method for transmission. Line resources statically programmed are dynamically programmed again; then, through a network management command, chain addition or chain deletion is implemented to manage the line resources dynamically. Dynamic transmission resource allocation can be provided for each data access unit so that the maximal transmission resource can be allocated to a user in a system; when failure occurs in a transmission line, resources can be reallocated to the access units, which ensures that the user who receives service has desired sufficient bandwidth. Thus, the utilization rate of the line resources is improved, the normal work of the system is not influenced, and no human intervention is needed. The present invention can be used for the line management of a data communication network.

Description

Transmission line resource dynamic management adaptation method

Technical field

The invention belongs to data communication field, relate in particular to the management of connecting system line resource.

Background technology:

The E1 circuit is a kind of main transmission medium in the connecting system.Article one, the E1 circuit provides the transmission channel of a 2M.Under the situation that many E1 circuit coexistences are arranged, existing system is not generally done dynamic management and planning to line resource, that is to say, finishes the static allocation of line resource from the beginning, and after the starting device, the user of each bar circuit can not change again.When a variety of causes causes circuit unavailable, when perhaps the lane assignment scheme changed, existing system is interrupting service at first, then line resource was reallocated.

To the reallocation of line resource is that method by artificial configuration realizes.When implementing reallocation, must guarantee that all there are administrative staff at two ends and need processing simultaneously, time-consuming bothersome; At one end under no one's the situation, can not make real-time processing as required, not meet intellectuality, real-time operation, the remote-operated demand of present resource management.

Artificial intervention not only needs interrupting service, and influences Qos, brings loss to operator.By retrieval, also do not have to find and to carry out the method for dynamic management to inserting system communications line road (E1 trunk line) resource domestic and international patent.

Summary of the invention

Technical problem to be solved by this invention is: provide a kind of to inserting the method that system communications line road resource is carried out dynamic management, solve the problem that to carry out Dynamic Programming to line resource in the prior art, overcome the shortcoming that in the prior art line resource is only had the static management function, line resource is carried out dynamic management flexibly and effectively.

A kind of E1/T1 transmission line resource dynamic management adaptation method of connecting system comprises following operating procedure:

Step 1 is carried out static programming to line resource, and starts the resource use;

Step 2 is done Dynamic Programming to line resource;

The step 3 local network management is assigned the webmaster order;

The step 4 resource management module is analyzed the webmaster order;

Step 5 judges that adding chain still deletes chain;

If step 6 adds chain, then add the pre-negotiation of chain, and implement to add the order of chain webmaster

If step 7 is deleted chain, then delete chain link analysis process, and implement to delete the order of chain webmaster;

Adopt the method for the invention, not only can distribute, for the user distributes maximum transfer resource in system by each data access unit being provided dynamic transmission resources; Can also when breaking down, transmission line carry out redistributing of resource, the bandwidth that the user of guarantee acceptance service is enough and required to access unit; Do not influence system's operate as normal.Compare with existing method, realizing the substance progress from static state to the dynamic management aspect the circuit resource management, reached flexible management, do not needed the effect of human intervention, improved the utilance of line resource.

Description of drawings

Fig. 1 system group network rough schematic

The method of Fig. 2 Link Resource Manager

Fig. 3 system adds the state diagram of chain operation

Fig. 4 system deletes the state diagram of chain operation

Embodiment

Be described in further detail implementing the present invention below in conjunction with accompanying drawing:

Fig. 1 is a simple system group network schematic diagram.Node A and Node B are represented two data access units respectively, and always total between the two M+N bar E1 link links to each other, and wherein the M bar is the circuit of actual use, and the N bar is an extension wire.

Fig. 2 has described the step of line resource management.

Main consideration is come into operation and alternative two kinds of circuit purposes.Circuit to plan is come into operation divides into groups according to the actual requirements again.Because circuit is used to carry out broadband data transmission, data mode is an ATM cell, abides by new IMA (the Inverse Multiplexing for ATM) consensus standard of releasing of atm forum, and circuit is carried out preliminary grouping.

Step 2 is done Dynamic Programming to line resource

Line resource in using is rethought distribution, and possible purpose has two kinds: a kind of is active mode, promptly does suitably on lane assignment according to the traffic requirement of business datum and adjusts; A kind of is passive mode, uses when disconnected in the line, and this is a kind of emergency measures of reducing the loss.

The step 3 local network management is assigned the webmaster order;

The webmaster personnel issue an order according to the actual requirements, require to give assigned I MA group to increase a circuit, perhaps reduce by a circuit from assigned I MA group.The reason of issuing orders may be that the bandwidth that the data traffic rising causes originally distributing to certain IMA group can not continue to satisfy the demands, or resource redundancy appears in utilized bandwidth that data traffic decline causes originally distributing to certain IMA group now.When the circuit that is coming into operation unavailable for a certain reason, when can't recover rapidly again in the short time, in order business not to be caused excessive influence, minimization of loss, the webmaster personnel also can issue an order, and reinstate alternative circuit, are increased in the IMA group of generation problem to go temporarily.After the problem for the treatment of solves, recover original use configuring condition again.All be that remote operation is carried out as this step 1.

The step 4 resource management module is analyzed the webmaster order

Resource management module is received the webmaster order, at first distinguishes command type, sends the dynamic management request to far-end then, whether supports this resource management mode to determine opposite equip..The transmission of solicited message can be by network management system, also can be other reliably communication modes rapidly.If in preset time, received the support response of remote equipment, so next further analyze order, whether need to confirm pre-negotiation.If newly-increased circuit must be consulted in advance.If reduce by a circuit, must finish link analysis earlier.

Does the step 5 judgement add chain? still delete chain?

The pre-negotiations process that increases link is as follows:

The negotiations process of IMA group itself, the IMA group state machine that has comprised the circuit two ends is unavailable from using, and returns to the process of upstate then again, though the needed time of this process is very short, the influence of business is more or less all existed.The operation that increases link must cause the negotiations process of an IMA group.The purpose of consulting is to confirm the availability of extension wire not disturbing under the professional situation in advance, guarantee for the order of successful implementation webmaster provides to greatest extent, thereby it is minimum to order enforcement to drop to the harmful effect that business is brought.

The circuit coupling is initiated by near-end, carries out successively at an extension wire.If circuit can be used, write down this line number, the match is successful, finishes pre-negotiations process.If circuit is unavailable, turns to and investigate next bar circuit, until having investigated all extension wires.

Fig. 3 is the state diagram signal that system adds the chain operation, and a circuit matching process of initiating with near-end A is an example, is described in detail:

1) proximal device A sends matching request information for far-end B, for extension wire is created interim IMA group.Matching request information comprises: the group number and the IMA of circuit matching request sign, the alternative line number of near-end, interim IMA group are set up upright parameter.

2) far-end is received matching request, extracts all solicited messages of record.

3) remote equipment is selected article one from the extension wire set, creates interim IMA group.

4) IMA group in two ends begins to consult, and confirms the availability of extension wire.

5) if consult successfully, to step 8).If the merit of failing to consultations, remote equipment are deleted interim IMA group, and order is selected next bar from the extension wire set, creates interim IMA group once more, gets back to step 4).If remote equipment has traveled through all extension wires, still not success, it fails to match for this secondary line, to step 6).

6) remote equipment sends to near-end that it fails to match replys.Interim IMA group is separately deleted at two ends respectively.

7) proximal device order from the extension wire set is selected next bar, gets back to step 1).If proximal device has traveled through all extension wires, still not success, then pre-negotiation failure, near-end notice local network management does not allow to increase link.

8) the match is successful for this secondary line, and remote equipment is write down the extension wire number of current use, sends to near-end that the match is successful replys.Proximal device is also write down the line number that this coupling is used.Interim IMA group is separately deleted at two ends respectively.

9) proximal device notice local network management allows to increase link, and reports this secondary line near-end that the match is successful uses, distal line number.The enforcement that continues in the step 6 adds the order of chain webmaster.

It is as follows that enforcement adds the command operation of chain webmaster:

The A proximal device sends formal interpolation LINK request to far-end.Solicited message comprises: the group number and the IMA that formally add request flag, alternative line number, assigned I MA group are set up upright parameter.

The B proximal device adds the pre-circuit of consulting to obtain in the assigned I MA group to.

The C far-end is received request, extracts solicited message, and the circuit of the extension wire that remote equipment was write down when the match is successful circuit number adds in the assigned I MA group.

D two ends IMA organizes negotiation, confirms the availability of extension wire.

E consults successfully, to local network management report command execution results, comprises the number of links of current configuration, the actual number of links that activates.

If step 7 is deleted chain, then delete chain link analysis process, and implement to delete the order of chain webmaster

The operation of deletion link can cause the negotiations process of an IMA group too.The purpose of link analysis is not disturb under the situation of regular traffic as far as possible, knows a link in the current use at the line number of two ends correspondence, thus will order implement to drop to the harmful effect that business is brought minimum.

Circuit analysis is initiated by near-end, and the current use circuit of organizing at an IMA carries out.

Fig. 4 is the state diagram signal that system deletes the chain operation, and a circuit analytic process of initiating with near-end A is an example, is described in detail:

1) proximal device is given far-end transmitting line analysis request information.Analysis request information comprises: circuit analysis request flag, current line number to be analyzed, the IMA group at this circuit place.

2) proximal device is the selected circuit confinement of analyzing.

3) far-end is received analysis request, extracts record request information.And the state of local IMA group analyzed.

4) if far-end is observed IMA group state to change (one of certain IMA group is used circuit to move to the confinement state by operating state), to step 6).If do not change, this circuit analysis failure of far-end notice near-end.Proximal device is removed the circuit confinement.

5) near-end order from the current use line set of assigned I MA group is selected next bar, gets back to step 1).If proximal device has traveled through all circuits in the set, still not success, then circuit analysis failure, near-end is removed the circuit confinement, and the notice local network management does not allow to carry out the deletion link operation.

6) far-end is noted the line number of the link that state transition takes place, and analyzes successful respond to the near-end transmitting line, reports the line number of this link at local terminal.

7) proximal device is removed the circuit confinement.Require far-end this link of being kept in detention simultaneously.

8) far-end this link of being kept in detention.

9) near-end is analyzed IMA group state, if find that this circuit is kept in detention, and then link analysis success.Near-end reports webmaster can carry out the deletion link operation.The order of chain webmaster is deleted in the enforcement that continues in the step 7.

The order of chain webmaster is deleted in enforcement

The A proximal device sends formal deletion LINK request to far-end.Solicited message comprises: the IMA group at formal removal request sign, deletion line number, this circuit place.

The B proximal device is the circuit of knowing in circuit analysis deletion from assigned I MA group.

The C far-end is received request, extracts solicited message, also the deletion from the IMA group of selected circuit.

IMA group in D two ends is consulted both sides after the stipulated time of setting, and the particular link of IMA group is used in confinement simultaneously, discharges specific internal buffer.

In sum, adopt the method for the invention, obtaining breakthrough aspect the circuit resource dynamic management, compared with prior art, realizing from static state to dynamic lifting, improved the utilance of line resource, reached flexible management, do not needed the effect of human intervention, satisfied in the communication connecting system line resource managed may command, the demand that can monitor is applicable to and utilizes the E1/T1 narrowband resource to carry out the occasion of wideband transmit.

Claims

The E1/T1 transmission line resource dynamic management adaptation method of 1 one kinds of connecting systems is characterized in that: may further comprise the steps:

Step 1 is carried out static programming to line resource, and starts the resource use;

Step 2 is done Dynamic Programming to line resource;

The step 3 local network management is assigned the webmaster order;

The step 4 resource management module is analyzed the webmaster order;

Step 5 judges that adding chain still deletes chain;

If step 6 adds chain, then add the pre-negotiation of chain, and implement to add the order of chain webmaster;

If step 7 is deleted chain, then delete chain link analysis process, and implement to delete the order of chain webmaster.
The E1/T1 transmission line resource dynamic management adaptation method of 2 connecting systems as claimed in claim 1 is characterized in that:

Described static programming is to realize by the mode that the circuit that comes into operation is divided into groups.
The E1/T1 transmission line resource dynamic management adaptation method of 3 connecting systems as claimed in claim 1 is characterized in that:

Described Dynamic Programming is according to the business datum flow, carries out adaptive again to lane assignment; When perhaps disconnected in the line, carry out adaptive again to lane assignment.
The 4 E1/T1 transmission line resource dynamic management adaptation methods as claim 1 or 2 or 3 described connecting systems is characterized in that, step 6 is described, and to add the pre-negotiation step of chain as follows:

1) proximal device A sends matching request information for far-end B, for extension wire is created interim IMA group;

2) far-end is received matching request, extracts all solicited messages of record;

3) remote equipment is selected article one from the extension wire set, creates interim IMA group;

4) IMA group in two ends begins to consult, and confirms the availability of extension wire;

5) successfully forward step 8) to if consult; If the merit of failing to consultations, remote equipment are deleted interim IMA group, and order is selected next bar from the extension wire set, creates interim IMA group once more, gets back to step 4); If remote equipment has traveled through all extension wires, still not success, it fails to match for this secondary line, to step 6);

6) remote equipment sends to near-end that it fails to match replys; Interim IMA group is separately deleted at two ends respectively;

7) proximal device order from the extension wire set is selected next bar, gets back to step 1); If proximal device has traveled through all extension wires, still not success, then pre-negotiation failure, near-end notice local network management does not allow to increase the instruction of link;

8) the match is successful for this secondary line, and remote equipment is write down the extension wire number of current use, sends to near-end that the match is successful replys; Proximal device is also write down the line number that this coupling is used; Interim IMA group is separately deleted at two ends respectively; Proximal device notice local network management allows to increase link, and reports this secondary line near-end that the match is successful uses, distal line number; The enforcement that continues in the step 6 adds the order of chain webmaster;

The operating procedure that enforcement adds the order of chain webmaster is as follows:

The A proximal device sends formal interpolation LINK request to far-end;

The B proximal device adds the pre-circuit of consulting to obtain in the assigned I MA group to;

The C far-end is received request, extracts solicited message, and the circuit of the extension wire that remote equipment was write down when the match is successful circuit number adds in the assigned I MA group;

D two ends IMA organizes negotiation, confirms the availability of extension wire;

E consults successfully, to local network management report command execution results, comprises the number of links of current configuration, the actual number of links that activates.
The E1/T1 transmission line resource dynamic management adaptation method of 5 connecting systems as claimed in claim 4 is characterized in that: the described matching request information of step 1) comprises: the group number and the IMA of circuit matching request sign, the alternative line number of near-end, interim IMA group are set up upright parameter.
The 6 E1/T1 transmission line resource dynamic management adaptation methods as claim 1 or 2 or 3 described connecting systems is characterized in that, the described chain link analysis process of deleting of step 7 is as follows:

1) proximal device is given far-end transmitting line analysis request;

2) proximal device is the selected circuit confinement of analyzing;

3) far-end is received analysis request, extracts record request information; And the state of local IMA group analyzed;

4) state changes if far-end is observed the IMA group, then forwards step 6) to; If do not change, this circuit analysis failure of far-end notice near-end; Proximal device is removed the circuit confinement;

5) near-end order from the current use line set of assigned I MA group is selected next bar, gets back to step 1); If proximal device has traveled through all circuits in the set, still not success, then circuit analysis failure, near-end is removed the circuit confinement, and the notice local network management does not allow to carry out the deletion link operation;

6) far-end is noted the line number of the link that state transition takes place, and analyzes successful respond to the near-end transmitting line, reports the line number of this link at local terminal;

7) proximal device is removed the circuit confinement; Require far-end this link of being kept in detention simultaneously;

8) far-end this link of being kept in detention;

9) near-end is analyzed IMA group state, if find that this circuit is kept in detention, and then link analysis success; Near-end reports webmaster can carry out the deletion link operation; The order of chain webmaster is deleted in the enforcement that continues in the step 7;

It is as follows that chain webmaster command operation step is deleted in enforcement:

The A proximal device sends formal deletion LINK request to far-end;

The B proximal device is the circuit of knowing in circuit analysis deletion from assigned I MA group;

The C far-end is received request, extracts solicited message, also the deletion from the IMA group of selected circuit;

IMA group in D two ends is consulted both sides after the stipulated time of setting, and the particular link of IMA group is used in confinement simultaneously, discharges specific internal buffer;

E consults successfully, to local network management report command execution results.
The E1/T1 transmission line resource dynamic management adaptation method of 7 connecting systems as claimed in claim 6, it is characterized in that: the described analysis request of step 1) comprises: circuit analysis request flag, current line number to be analyzed, the IMA group at this circuit place.