CN100466619C - Access business service quality control device and method - Google Patents

Access business service quality control device and method Download PDF

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Publication number
CN100466619C
CN100466619C CNB2006100375046A CN200610037504A CN100466619C CN 100466619 C CN100466619 C CN 100466619C CN B2006100375046 A CNB2006100375046 A CN B2006100375046A CN 200610037504 A CN200610037504 A CN 200610037504A CN 100466619 C CN100466619 C CN 100466619C
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side interface
network side
scheduler
access
service quality
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Chinese (zh)
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CN1937578A (en
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高波
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Shandong Dahai New Energy Development Co ltd
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Huawei Technologies Co Ltd
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    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2115—Third party
    • G—PHYSICS
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    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
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    • H04L65/10—Architectures or entities
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    • H04W40/00—Communication routing or communication path finding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal
    • H—ELECTRICITY
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    • H—ELECTRICITY
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    • H04W—WIRELESS COMMUNICATION NETWORKS
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    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • H—ELECTRICITY
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    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S370/00—Multiplex communications
    • Y10S370/901—Wide area network
    • Y10S370/902—Packet switching
    • Y10S370/903—Osi compliant network
    • Y10S370/906—Fiber data distribution interface, FDDI
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S370/00—Multiplex communications
    • Y10S370/901—Wide area network
    • Y10S370/902—Packet switching
    • Y10S370/903—Osi compliant network
    • Y10S370/907—Synchronous optical network, SONET

Abstract

The invention discloses a quality-of-access service control device, comprising plural schedulers, at least a network-side interface and transmission control module, where each network-side module corresponds to at least two schedulers; the scheduler is used to schedule a corresponding VP-carried access service to corresponding network-side interface in quality-of-service (QoS) grades; the transmission control module controls the scheduler corresponding to the network-side interface to send access services in its scheduling queue from the network-side interface via cable to network-side equipment. And the invention also discloses a quality-of-access service control method. And the invention reduces the influenced service range into a VP and besides, implements control of qualities of different PVC services in the same VP.

Description

A kind of control device of access business service quality and method thereof
Technical field
(Asynchronism Transfer Mode, ATM) network relate to the control device and the method thereof of a kind of access business service quality in the ATM network particularly to the present invention relates to asynchronous transfer mode.
Background technology
Along with developing rapidly of broadband services, increasing customer requirements provides the broadband services access service of high-quality high reliability.In atm network, converge by the business of access device many different users, be transferred to the switching equipment on upper strata then by the network side interface.Be illustrated in figure 1 as the schematic diagram that converges of atm network access service in the prior art.(Permanent Virtual Channel PVC), realizes the carrying of different user business datum with this to dispose a Permanent Virtual Path at each user on access device.When configuration connects, can realize the bandwidth of customer service and the promise of service priority according to flow parameter, promptly based on virtual path (Virtual Channel, service quality VC) (Quality of Service, QoS).When generation is congested, preferentially abandon the business datum of low service priority PVC, guarantee that the business datum of high service priority PVC obtains normal consistency.For the identical situation of PVC service priority, then take place when congested in certain customer service, other customer services of all equal priority all can be affected, and bandwidth all can not get guaranteeing.Along with the increase of access customer number, the PVC that equipment converges is more and more, and increasing at the congested probability of generation like this, the coverage of bringing thus is also more and more wider, thereby has reduced service quality on the whole.
In order to reduce the coverage of congestion situation as far as possible to customer service, be necessary on based on the basis of the QoS of VC, to introduce a kind of mechanism, in the same priority customer service, mark off different zones, so that the influence of congested generation is limited in certain zone, make other regional customer services unaffected, thereby reach the purpose that reduces congested coverage.Be convenient management and configuration, (Virtual Path VP) identifies, for using same VPI symbol (Virtual Path Identity with Virtual Channel with dividing each zone of coming out, VPI) VC connection all is divided in the zone, forms a VP group.
As shown in Figure 2, the control device for a kind of access business service quality of being provided in the prior art is used for reducing as far as possible the coverage of congestion situation to customer service.This device is positioned on the access device, comprise a plurality of schedulers, a plurality of network side interface and send control module, each scheduler is corresponding to a network side interface and a VP, be used for the access service that different PVC in this VP is carried is added its scheduling queue according to service quality rating, and under the transmission order control that sends control module, be sent to this network side interface corresponding with it, this network side interface sends to network equipment by cable with access service more then, for example ATM switch.Wherein, scheduler and VP and network side interface are to concern one to one, promptly, each scheduler is responsible for dispatching the access service that different PVC is carried in the VP, and under the control of transmission control module, send it to network side interface corresponding with it, realized that the service quality based on PVC is controlled in the same VP.Each scheduler all has independently scheduling queue, in the PVC institute data carried by data that the high service priority of priority scheduling when congested takes place, thereby guarantees the bandwidth of high service priority PVC.The bandwidth of scheduler can be provided with, and is used for guaranteeing that the flow sum by all PVC data of same scheduler is no more than the bandwidth that scheduler is set.Scheduling queue between the different schedulers is independent of each other, if the PVC in a certain scheduler does not have data flow, even the congested bandwidth that also can't seize this scheduler takes place other schedulers.Therefore, by this device, the affected scope of business has been reduced in the same VP during congested generation, and is congested if certain business in VP has taken place, the business in affected just this VP, and other VP's is professional unaffected.
But, this device makes each VP business take a network side interface respectively, each port has the cable of receiving network equipment again, therefore, the use amount of network side interface and cable is too much, increased cost, and, the network side interface too much to take for the rare atm network of network side interface resource be major defect.
Summary of the invention
Technical problem to be solved by this invention is, a kind of control device and method thereof of access business service quality are provided, the scope of influenced business is reduced in the VP when making generation congested under the situation that takies less network side interface and cable, realizes the control to the service quality of different PVC business in the same VP simultaneously.
In order to solve the problems of the technologies described above, the present invention proposes a kind of control device of access business service quality, comprise a plurality of schedulers, send control module and at least one network side interface, wherein,
Each scheduler is used to dispatch the access service that described Virtual Channel carries corresponding to a Virtual Channel;
Described transmission control module is used to control described scheduler access service is sent to the map network side interface;
Described network side interface is used for described access service is sent to network equipment;
Wherein, at least two schedulers of each network side interface correspondence, the described scheduler that described transmission control module is controlled this network side interface correspondence is sent to this network side interface with its access service of dispatching.
Wherein, described transmission control module is sent to this network side interface according to principle control described at least two schedulers corresponding with described network side interface of round-robin scheduling with its access service of dispatching.
Wherein, described transmission control module further comprises:
Correspondence relation storage is used to store the correspondence relationship information between described network side interface and the described scheduler;
Driver element is used for inquiring about the described corresponding relation of described correspondence relation storage, and issues the transmission order according to the principle of round-robin scheduling to described scheduler.
Wherein, the principle of described round-robin scheduling is: described transmission control module control is sent to described network side interface in the mode that sends in turn with the access service in its scheduling queue with the corresponding described scheduler of described network side interface.
Wherein, the mode of the access service that Virtual Channel carried that described scheduler schedules is corresponding with it is: according to service quality rating order from high to low access service is added its scheduling queue successively, and preferentially abandon the low access service of service quality rating when generation is congested.
Correspondingly, the present invention also provides a kind of control method of access business service quality, it is realized on the access business service quality control device that includes transmission control module, network side interface and scheduler, at least two schedulers of described each network side interface correspondence, this method comprises the steps:
(a) each scheduler receives the access service that Virtual Channel carried corresponding with it, and the access service that is received is added in its scheduling queue;
(b) send described at least two schedulers of control module control the access service in its scheduling queue is sent to the map network side interface corresponding to each network side interface;
(c) the network side interface is sent to network equipment with the access service that is received.
Wherein, described step (b) further comprises the steps:
(b1) send the control module inquiry and be stored in the network side interface of its memory cell and the mapping table of scheduler;
(b2) send control module according to described corresponding relation, at least two schedulers controlling each network side interface correspondence according to the principle of round-robin scheduling are sent to described network side interface with the business in its scheduling queue.
Wherein, the principle of described round-robin scheduling is: send control module control and in the mode that sends in turn the access service in its scheduling queue is sent to described network side interface with the corresponding described scheduler of described network side interface.
Wherein, comprise in the described step (a):
(a1) described each scheduler adds access service in its scheduling queue successively according to service quality rating order from high to low.
Wherein, described step (a1) further comprises: described each scheduler preferentially abandons the low access service of service quality rating when generation is congested.
Implement the present invention, have following beneficial effect:
The present invention is by a kind of control device and method thereof of access business service quality, provide a scheduler to the access service that each VP carried, realized that the service quality based on PVC is controlled in the same VP, and by making the corresponding two or more schedulers of a network-side port, the business that the transmission control module is dispatched these schedulers according to the principle of round-robin scheduling sends to their pairing network side interfaces in turn, and the congested influence that causes that under the situation of saving network side interface resource and respective cable resource certain bar PVC burst flow is caused is limited in the VP at this PVC place.
Description of drawings
Fig. 1 is that the access service of atm network converges schematic diagram in the prior art;
Fig. 2 is the control device schematic diagram of access business service quality in the prior art;
Fig. 3 is the execution mode schematic diagram of the control device of access business service quality among the present invention;
Fig. 4 is that the functional module that sends control module among Fig. 3 is formed schematic diagram;
Fig. 5 is the execution mode schematic diagram of the round-robin scheduling principle corresponding with execution mode among Fig. 2;
Fig. 6 is the schematic flow sheet of the control method of access business service quality among the present invention.
Embodiment
The present invention is by a kind of control device and method thereof of access business service quality, provide a scheduler to the access service that each VP carried, realized that the service quality based on PVC is controlled in the same VP, and by making the corresponding two or more schedulers of a network-side port, the business that the transmission control module is dispatched these schedulers according to the principle of round-robin scheduling sends to their pairing network side interfaces in turn, and the congested influence that causes that under the situation of saving network side interface resource and respective cable resource certain bar PVC burst flow is caused is limited in the VP at this PVC place.Below in conjunction with accompanying drawing the present invention is done further in detail clearly explanation.
Fig. 3 is the embodiment schematic diagram of the control device of access business service quality among the present invention, and this device comprises scheduler 1, scheduler 2, scheduler 3, a network side interface 4 and sends control module 5.Network side interface 4 corresponding 3 schedulers: scheduler 1, scheduler 2, scheduler 3.Each scheduler is used for a access service that Virtual Channel carried corresponding with it is dispatched to network side interface 2 corresponding with it according to service quality rating, promptly, the corresponding scheduler of each VP, this scheduler is responsible for the business of different PVC in this VP is added scheduling queue successively according to service quality rating order from high to low, under the control that sends control module, send to corresponding network side interface 4 then, and when generation is congested, preferentially abandon the low business of service quality rating; The scheduling queue of scheduler 1, scheduler 2, scheduler 3 is independent of each other, if the PVC in the scheduler 1 professional owing to flow uprush taken place congested, only can have influence on the scheduling queue of scheduler 1, less than influence, so just the congested influence that causes that certain PVC business burst flow is caused has been limited in the VP at this PVC place to the scheduling queue of scheduler 2 and scheduler 3.
Send control module 5 and be used for controlling scheduler 1, scheduler 2, scheduler 3 access service of its scheduling queue is sent to network side interface 4, by network side interface 4 access service that receives is sent to network equipment by cable then.Because corresponding a plurality of schedulers of network side interface, therefore, sending control module 5 is that (Round Robin, principle control scheduler 1 RR), scheduler 2, scheduler 3 are sent to network side interface 4 with the access service in its scheduling queue according to round-robin scheduling.
As shown in Figure 4, as a kind of execution mode, send control module 5 and may further include correspondence relation storage 51 and driver element 52.Correspondence relation storage 51 is used to store the correspondence relationship information between described network side interface and the described scheduler.Driver element 52 is used for inquiring about the described corresponding relation of described correspondence relation storage, and issues the transmission order according to the principle of round-robin scheduling to described scheduler.
Above said round-robin scheduling principle be meant that sending control module 5 controls is sent to network side interface 4 in the mode that sends in turn with the access service in its scheduling queue with network side interface 4 corresponding schedulers 1, scheduler 2, scheduler 3.Here in conjunction with Fig. 5 this is illustrated.As shown in Figure 5, formation 11, formation 21, formation 31 are respectively the scheduling queue of scheduler 1, scheduler 2, scheduler 3.Send control module 5 inquiry correspondence relation storage 51 and learn that scheduler 1, scheduler 2, scheduler 3 are corresponding to network side interface 4,52 pairs of schedulers 1 of driver element issue and send order then, control it and be sent to network side interface 4 coming a top cell 111 in the scheduling queue 11, successively scheduler 2, scheduler 3 are issued subsequently and send order, control them and be sent to network side interface 4 coming a top cell 211 and cell 311 in scheduling queue 21 and the scheduling queue 31.Certainly, it is at random that 5 pairs of 3 schedulers of transmission control module issue the order that sends order, can be earlier scheduler 1 to be issued, and also can issue scheduler 2 or scheduler 3 earlier.No matter earlier who is issued, on the whole, the send opportunity that 3 schedulers are enjoyed is impartial, and what send promptly that 5 pairs of 3 schedulers of control module carry out is the fair control that sends.The present invention above cited only be a kind of execution mode in the round-robin scheduling principle, repeat no more for other execution mode herein.
The above only is a kind of execution mode of the control device of access business service quality among the present invention, in actual applications, this device can comprise a plurality of network side interfaces, each network side interface can send the pairing a plurality of schedulers of control module 5 each network side interface of control and in the mode that sends in turn the access service in its scheduling queue is sent to network side interface corresponding with it corresponding at least two schedulers as required.
Correspondingly, the present invention also provides a kind of control method of access business service quality, and it realizes that on the control device of above-mentioned access business service quality its schematic flow sheet comprises step as shown in Figure 6:
Step S6001: each scheduler receives the access service that Virtual Channel carried corresponding with it, and the access service that is received is added in its scheduling queue.
Scheduler is according to service quality rating order from high to low access service to be added in its scheduling queue successively, and preferentially abandons the low access service of service quality rating when generation is congested.
Step S6002: send described at least two schedulers of control module control the access service in its scheduling queue is sent to the map network side interface corresponding to each network side interface.
This step specifically comprises following two steps:
Step S7001: send the control module inquiry and be stored in the network side interface of its memory cell and the mapping table of scheduler.
Step S7002: send control module according to described corresponding relation, at least two schedulers controlling each network side interface correspondence according to the principle of round-robin scheduling are sent to described network side interface with the business in its scheduling queue.
The principle of so-called round-robin scheduling is meant, sends control module control and in the mode that sends in turn the access service in its scheduling queue is sent to described network side interface with the corresponding described scheduler of described network side interface.Its embodiment repeats no more as previously mentioned herein.
Step S6003: the network side interface is sent to network equipment with the access service that is received.
Above disclosed only is preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.

Claims (10)

1, a kind of control device of access business service quality comprises a plurality of schedulers, sends control module and at least one network side interface, wherein,
Each scheduler is used to dispatch the access service that described Virtual Channel carries corresponding to a Virtual Channel;
Described transmission control module is used to control described scheduler access service is sent to the map network side interface:
Described network side interface is used for described access service is sent to network equipment;
It is characterized in that:
At least two schedulers of each network side interface correspondence, the described scheduler that described transmission control module is controlled this network side interface correspondence is sent to this network side interface with its access service of dispatching.
2, the control device of access business service quality as claimed in claim 1, it is characterized in that described transmission control module is sent to this network side interface according to principle control described at least two schedulers corresponding with described network side interface of round-robin scheduling with its access service of dispatching.
3, the control device of access business service quality as claimed in claim 2 is characterized in that, described transmission control module further comprises:
Correspondence relation storage is used to store the correspondence relationship information between described network side interface and the described scheduler;
Driver element is used for inquiring about the described corresponding relation of described correspondence relation storage, and issues the transmission order according to the principle of round-robin scheduling to described scheduler.
4, as the control device of each described access business service quality of claim 2-3, it is characterized in that the principle of described round-robin scheduling is: described transmission control module control is sent to described network side interface in the mode that sends in turn with the access service in its scheduling queue with the corresponding described scheduler of described network side interface.
5, as the control device of each described access business service quality of claim 1-3, it is characterized in that, the mode of the access service that Virtual Channel carried that described scheduler schedules is corresponding with it is: according to service quality rating order from high to low access service is added its scheduling queue successively, and preferentially abandon the low access service of service quality rating when generation is congested.
6, a kind of control method of access business service quality, it is realized on the access business service quality control device that includes transmission control module, network side interface and scheduler, at least two schedulers of described each network side interface correspondence is characterized in that this method comprises the steps:
(a) each scheduler receives the access service that Virtual Channel carried corresponding with it, and the access service that is received is added in its scheduling queue;
(b) send described at least two schedulers of control module control the access service in its scheduling queue is sent to the map network side interface corresponding to each network side interface;
(c) the network side interface is sent to network equipment with the access service that is received.
7, the control method of access business service quality as claimed in claim 6 is characterized in that, described step (b) further comprises the steps:
(b1) send the control module inquiry and be stored in the network side interface of its memory cell and the mapping table of scheduler;
(b2) send control module according to described corresponding relation, at least two schedulers controlling each network side interface correspondence according to the principle of round-robin scheduling are sent to described network side interface with the business in its scheduling queue.
8, the control method of access business service quality as claimed in claim 7, it is characterized in that the principle of described round-robin scheduling is: send control module control and in the mode that sends in turn the access service in its scheduling queue is sent to described network side interface with the corresponding described scheduler of described network side interface.
9, as the control method of each described access business service quality of claim 6-8, it is characterized in that, comprise in the described step (a):
(a1) described each scheduler adds access service in its scheduling queue successively according to service quality rating order from high to low.
10, the control method of access business service quality as claimed in claim 9 is characterized in that, described step (a1) further comprises: described each scheduler preferentially abandons the low access service of service quality rating when generation is congested.
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