CN101242393B - System and method for improving user board bandwidth allocation - Google Patents
System and method for improving user board bandwidth allocation Download PDFInfo
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- CN101242393B CN101242393B CN2007100801052A CN200710080105A CN101242393B CN 101242393 B CN101242393 B CN 101242393B CN 2007100801052 A CN2007100801052 A CN 2007100801052A CN 200710080105 A CN200710080105 A CN 200710080105A CN 101242393 B CN101242393 B CN 101242393B
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Abstract
The inventive embodiment discloses two systems for improving user bandwidth allocation. The first system is provides with a interface switch unit, and two interfaces on a user board, when the user board needs to improve bandwidth allocation, the two interfaces connect with the main control unit, bandwidth allocation is acquired by two interfaces, so that the total bandwidth allocation of the user board is improved. The second system employs a user board supporting rate mode selection and a main control single board, when the user board needs to improve bandwidth allocation, the user board selects corresponding rate mode according to the property of service flow, and transmits service data flow to the main control single board, the main control single board allocates bandwidth according to the rate mode of the received service data flow, so that bandwidth allocation of the user board is improved. The system and method of the invention can improve the bandwidth allocation of a user board in accordance with service requirement.
Description
Technical field
The present invention relates to network communications technology field, particularly improve the system and method that user board bandwidth distributes.
Background technology
Along with the fast development of broadband technology, during broadband access is applied to daily life more and more widely and works.At present, digital subscriber line (XDSL) is the technology of main flow in the broadband access, uses the most extensively, and the user is maximum.
The XDSL technical development is very fast; By the ADSL technology progressively develop into ADSL2 technology, VDSL technology, ADSL2+ is technological and VDSL2 technology etc.; Corresponding XDSL connecting system; Be digital subscriber line access multiplex (DSLAM), also develop into Internet protocol (IP) DSALM and IP kernel DSLAM by ATM(Asynchronous Transfer Mode) DSLAM.
Fig. 1 is the structure chart of the digital user line access system of prior art.User's plate in this system is made up of digital subscriber line (XDSL) and the Service Processing Unit that comprises IP kernel device, and wherein the implementation of IP kernel device can be FPGA implementation, NP implementation or ASIC implementation.This system adopts the Business Processing mode in the complete set, and the bandwidth of distributing on each the groove position on the Ethernet switching chip (LSW) and each continuous user's plate is fixed, and is generally 1GE.In order to satisfy professional continuous growth to bandwidth demand; The bandwidth of distributing for each user's plate needs constantly to increase; If be that each user's plate distributes very big bandwidth when design, like 2GE, then for only needing the 1GE bandwidth with regard to the business that can realize; Must cause waste of bandwidth, the increase of cost; If only the bandwidth that satisfies the current business demand is provided during design for each user's plate, then, need develop user's plate again along with the continuous growth of business to bandwidth demand, also can cause the huge waste of cost, and implementation procedure is complicated.
In addition; Most IP kernel DSLAM equipment all is to be placed on the Service Processing Unit that comprises IP kernel device on user's plate to realize that this implementation has been brought a lot of drawbacks at present; Particularly increase the cost that user's plate is developed, limited the extensibility of user's plate.Problem about this respect has been carried out detailed elaboration in related patent U.S. Patent No., repeat no more here.
Summary of the invention
In view of this, the embodiment of the invention provides two kinds on the one hand and has improved the system that user board bandwidth distributes, and provides two kinds on the other hand and has improved the method that user board bandwidth distributes, and can improve the allocated bandwidth of user's plate according to Business Stream character.
A kind of system that improves the user board bandwidth distribution that the embodiment of the invention provides comprises: at least one user's plate, interface switch unit, master control veneer, backup interface switch unit and backup master control veneer, wherein,
Said user's plate links to each other with said interface switch unit with second interface through self-contained first interface, links to each other with said backup interface switch unit with the 4th interface through self-contained the 3rd interface;
Said interface switch unit links to each other with said master control veneer, is used to be operatively connected to the user's plate of self and the annexation of said master control veneer;
Said master control veneer is for the user's plate that is connected to self each groove position through said interface switch unit distributes bandwidth;
Said backup interface switch unit links to each other with said backup master control veneer, is used to be operatively connected to the annexation of self user's plate and said backup master control veneer;
Said backup master control veneer is for the user's plate that is connected to self each groove position through said backup interface switch unit distributes bandwidth.
The another kind that the embodiment of the invention provides improves the system that user board bandwidth distributes, and comprising: a plurality of user's plates of supporting rate model selection, the master control veneer of supporting rate model selection and the backup master control veneer of supporting rate model selection, wherein
Said each user's plate links to each other with said master control veneer and said backup master control veneer respectively, and each user's buttress carries out rate mode according to Business Stream character to be selected, and according to the rate mode of selecting business data flow is sent to continuous said master control veneer; Can't business data flow sent to said backup master control veneer according to the rate mode of selecting when said master control veneer obtains allocated bandwidth;
Said master control veneer receives the business data flow that said user's plate sends, and is that corresponding user's plate distributes bandwidth according to the transmission rate pattern of said business data flow;
Said backup master control veneer receives the business data flow that said user's plate sends, and is that corresponding user's plate distributes bandwidth according to the transmission rate pattern of said business data flow.
The another kind that the embodiment of the invention provides improves the method that user board bandwidth distributes, and this method adopts the user's plate and the master control veneer of supporting rate model selection, comprising:
Said user's buttress carries out rate mode according to the character of business data flow to be selected, and according to the rate mode of selecting business data flow is sent to master control veneer; Said master control veneer distributes bandwidth according to the rate mode of the business data flow that receives for corresponding user's plate;
When said master control veneer can't provide allocated bandwidth for all user's plates; User's plate that can't be assigned to bandwidth is sent to the backup master control veneer with business data flow, and said backup master control veneer distributes bandwidth according to the rate mode of the business data flow that receives for corresponding user's plate.
Visible by above technical scheme; The embodiment of the invention is through being provided with the interface switch unit in system; And two interfaces are set on user's plate, when user's plate need improve allocated bandwidth, two interfaces are linked to each other with main control unit; Obtain allocated bandwidth simultaneously through two interfaces, thereby improve the total allocated bandwidth of user's plate.The embodiment of the invention can also be through adopting the user's plate and the master control veneer of supporting rate model selection; When user's plate need improve allocated bandwidth; User's buttress selects corresponding rate mode that business data flow is sent to master control veneer according to the character of Business Stream; Master control veneer is that corresponding user's plate distributes bandwidth according to the rate mode of the business data flow that receives, thereby improves the allocated bandwidth of user's plate.
Description of drawings
Fig. 1 is the structure chart of the digital user line access system of prior art;
Fig. 2 is the structural representation of the raising user board bandwidth distribution system of the embodiment of the invention one;
Fig. 3 is the structure chart of user's plate in the system shown in Figure 2;
Fig. 4 is the structural representation of the raising user board bandwidth distribution system of the embodiment of the invention two;
Fig. 5 realizes improving the sketch map of user board bandwidth distribution system for adopting machine frame formula structure.
Embodiment
For making the object of the invention, technical scheme and beneficial effect clearer,, the present invention is done detailed description further below in conjunction with embodiment and accompanying drawing.
A kind of system that improves user board bandwidth that the embodiment of the invention provides; Through the interface switch unit is set in system; And two interfaces that link to each other with the interface switch unit are set on user's plate; Whether two interfaces by interface switch unit control user plate all link to each other with master control veneer, thereby realize improving the purpose that user board bandwidth distributes according to Business Stream character.
This system comprises: at least one user's plate, interface switch unit and master control veneer, wherein,
User's plate links to each other with the interface switch unit with second interface through self-contained first interface; The interface switch unit links to each other with master control veneer, is used to be operatively connected to the user's plate of self and the annexation of master control veneer; Master control veneer distributes bandwidth for the user's plate that is connected to self each groove position through the interface switch unit.
Fig. 2 is the structural representation of the raising user board bandwidth distribution system of the embodiment of the invention one.This system comprises: a plurality of user's plates, first master control veneer, second master control veneer and the first and second interface switch units.Be set with 6 pairs of user's plate connecting systems in the present embodiment.Wherein, user's plate Service Processing Unit of comprising XDSL and comprising IP kernel device; First and second master control veneers are respectively first and second LSW.Second master control veneer is the backup veneer of first master control veneer; The second interface switch unit is the backup interface switch unit of the first interface switch unit.
Fig. 3 is the structure chart of user's plate in the system shown in Figure 2, and each user's plate comprises XDSL and Service Processing Unit.Service Processing Unit comprises four interfaces, and wherein first interface links to each other with the first interface switch unit with second interface, and at least one interface links to each other with the groove position of a LSW through the first interface switch unit; The 3rd interface links to each other with the second interface switch unit with the 4th interface.
Suppose that in advance the bandwidth that each the groove position for each user's plate and LSW is provided with is 1GE, but wherein at least one the user's plate that is connected to system needs the bandwidth of 2GE to realize business, supposes that user's plate 1 needs the 2GE bandwidth.Initial annexation is: user's plate 1 to 12 links to each other with the first and second master control crosspoints respectively; And first interface by self links to each other with the groove position of a LSW through the first interface switch unit respectively, and the allocated bandwidth of 1GE is provided for each user's plate by each the groove position on the LSW.
When user's plate 1 needs the allocated bandwidth of 2GE; The first interface switch unit does not need in user's plate of 2GE bandwidth with other; Like user's plate 12,, and second interface of user's plate 1 is connected on original subscriber's plate 12 and the groove position that a LSW links to each other with the disconnection that is connected of the groove position of a LSW; Like this, the bandwidth that is assigned to of user's plate 1 just is 2GE.Simultaneously, being connected of the groove position of the 3rd interface of the second interface switch unit excited users plate 12 on the second master control crosspoint or the 4th interface and the 2nd LSW, user's plate 12 obtains allocated bandwidth from the second master control crosspoint.
In like manner; If the user's plate 1 in user's plate of connecting system needs the bandwidth of 2GE to user's plate 6; Then the groove position on the first interface switch unit disconnect user plate 7 to 10 and the LSW is connected; Simultaneously second interface of user's plate 1 to 6 is connected respectively on the groove position of the LSW that user's plate 7 to 10 took originally, like this, the bandwidth that user's plate 1 to 6 distributes becomes 2GE by original 1GE.Simultaneously, the 3rd interface of the second interface switch unit excited users plate 7 to 10 or the 4th interface are connected with the 2nd LSW's, are that user's plate 7 to 10 provides allocated bandwidth by the second master control switching board.
In embodiment illustrated in fig. 2, master control veneer is LSW, and when the user's plate in this system included only XDSL, said master control veneer was the service processing board with service processing function, and this service processing board can be realized through ASIC.Technical scheme about Service Processing Unit is separated from user's plate has been carried out detailed elaboration in related patent U.S. Patent No., repeats no more here.
System shown in Figure 2 is specially adapted to the not situation of supporting rate model selection of user's plate and master control veneer, also is applicable to the situation of user's plate and the model selection of master control veneer supporting rate certainly.
The embodiment of the invention also provides other a kind of system that user board bandwidth distributes that improves, and this system applies is in user's plate and master control veneer of supporting rate model selection.In this system, each user's plate links to each other with master control veneer respectively, and each user's buttress carries out rate mode according to Business Stream character to be selected, and according to the rate mode of selecting business data flow is sent to continuous master control veneer; Master control veneer receives the business data flow that user's plate sends, and is that corresponding user's plate distributes bandwidth according to the transmission rate pattern of business data flow.
Be illustrated in figure 4 as the structural representation of the raising user board bandwidth distribution system of the embodiment of the invention two.In this system, each user's plate links to each other respectively at a LSW; Link to each other with the 2nd LSW respectively simultaneously.Suppose that a user's plate and a LSW support the rate mode of 2GE allocated bandwidth to select.
The setting initial condition is: user's plate 1 to user's plate 12 is distributed the bandwidth of 1GE respectively by a LSW.At this moment, if because business demand, user's plate 1 confirms that according to the character of business data flow needs distribute the bandwidth of 2GE, then user's plate 1 is selected corresponding rate mode, and according to the rate mode of selecting business data flow is sent to a LSW; The one LSW receives the business data flow that user's plate 1 sends, and is the bandwidth that corresponding user's plate 1 distributes 2GE according to the rate mode of this business data flow.At this moment; Because the total bandwidth of a LSW is fixed, therefore when the bandwidth of distributing for user's plate 1 is 2GE, certainly exists a user's plate outside user's plate 1 and can't obtain allocated bandwidth from a LSW; At this moment, the allocated bandwidth of this user's plate can be provided by the 2nd LSW.The 2nd LSW is the backup of a LSW.
In like manner; If user's plate 1 to 6 is because the bandwidth that business demand need be distributed 2GE; Then user's plate 1 to 6 is selected rate mode according to Business Stream character; And business data flow being sent to a LSW according to the rate mode of selecting, a LSW intercepts and captures when searching out the business data flow that user's plate 1 to 6 sends, and is the bandwidth that corresponding user's plate distributes 2GE according to the rate mode of the business data flow that receives.In this case, can't obtain user's plate 7 to 12 of allocated bandwidth, can obtain allocated bandwidth from the 2nd LSW from a LSW.
In embodiment illustrated in fig. 4; User's plate comprises XDSL and Service Processing Unit; When including only XDSL in user's plate, said master control veneer is the service processing board with service processing function with the backup master control veneer, and this service processing board can be realized through ASIC.
The method of utilizing system shown in Figure 2 to realize that user board bandwidth distributes comprises: two interfaces are set on user's plate; When needs improve the allocated bandwidth of user's plate; Two interfaces of said user's plate are connected on the master control switching board simultaneously, obtain allocated bandwidth through said two interfaces.
If said master control switching board can't provide allocated bandwidth for all user's plates, then through the backup master control veneer, i.e. second master control veneer among Fig. 2 is for user's plate that can't be assigned to bandwidth provides allocated bandwidth.
Utilize system shown in Figure 4 to improve the method that user board bandwidth distributes; This method adopts the user's plate and the master control veneer of supporting rate model selection; Comprise: said user's buttress carries out rate mode according to the character of business data flow to be selected, and according to the rate mode of selecting business data flow is sent to master control veneer; Said master control veneer distributes bandwidth according to the rate mode of the business data flow that receives for corresponding user's plate.
When said master control veneer can't provide allocated bandwidth for all user's plates; User's plate that can't be assigned to bandwidth is sent to the backup master control veneer with business data flow, and said backup master control veneer distributes bandwidth according to the rate mode of the business data flow that receives for corresponding user's plate.
Be illustrated in figure 5 as the sketch map that adopts machine frame formula structure to realize improving the user board bandwidth distribution system; In this machine frame formula structure; Each shared groove position of master control veneer is divided into two parts, and promptly the business of full frame both can have been handled in each groove position, also can only handle the business of half frame; When handling half frame business, the traffic handing capacity and the allocated bandwidth of this groove position double.
The system and method that the raising user board bandwidth that adopts the embodiment of the invention to provide distributes; The bandwidth of each the groove position in the system can flexible allocation; Master control veneer both can have been handled the business of each groove position of full frame; Also can handle the professional groove of half frame position, when handling half frame, the business of each groove position, bandwidth processing ability can double.Handle the distributed processing mode of half frame through this each master control veneer, the exchange chip capacity requirement of master control veneer can reduce by half, thereby reduces cost; Perhaps under same cost, can increase the disposal ability of each professional groove position.
The embodiment of the invention is through using the user's plate and the master control veneer of supporting rate model selection; Or through the interface switch unit is set in system; Can realize flexible, dynamic assignment that ply-yarn drill groove bit strip is wide; Can be along with the business development traffic handing capacity of each groove position of upgrading, and increase master control veneer as required.Handle in early days under the low situation of capacity, can reduce initial cost.
Visible by above embodiment, the embodiment of the invention one is through adopting the user's plate and the master control veneer of supporting rate model selection, and every block of user's plate is connected on two master control veneers, on the control user plate allocated bandwidth how much.The embodiment of the invention two is through being provided with the interface switch unit in system, through being connected of interface switch unit control user plate and master control veneer, thereby be controlled to be the bandwidth of user's plate distribution.Method and system through adopting the embodiment of the invention to provide can improve the allocated bandwidth on user's plate as required, has avoided that user board bandwidth can't change bandwidth and the cost waste that causes in the prior art.
In a word, the above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. one kind is improved the system that user board bandwidth distributes, and it is characterized in that this system comprises: at least one user's plate, interface switch unit, master control veneer, backup interface switch unit and backup master control veneer, wherein,
Said user's plate links to each other with said interface switch unit with second interface through self-contained first interface, links to each other with said backup interface switch unit with the 4th interface through self-contained the 3rd interface;
Said interface switch unit links to each other with said master control veneer, is used to be operatively connected to the user's plate of self and the annexation of said master control veneer;
Said master control veneer is for the user's plate that is connected to self each groove position through said interface switch unit distributes bandwidth;
Said backup interface switch unit links to each other with said backup master control veneer, is used to be operatively connected to the annexation of self user's plate and said backup master control veneer;
Said backup master control veneer is for the user's plate that is connected to self each groove position through said backup interface switch unit distributes bandwidth.
2. the system of claim 1 is characterized in that, said master control veneer is: Ethernet switching chip LSW;
Said user's plate comprises: digital subscriber line XDSL and the Internet protocol IP kernel that is used for Business Processing.
3. the system of claim 1 is characterized in that, said master control veneer is: have the service processing board of service processing function, said service processing board is realized by integrated circuit ASIC;
Said user's plate comprises: digital subscriber line XDSL.
4. the system of claim 1 is characterized in that, said user's plate and master control switching board are for supporting to improve user's plate and the master control switching board that user board bandwidth distributes.
5. the system of claim 1 is characterized in that, said interface switch unit is an electronic switch.
6. one kind is improved the system that user board bandwidth distributes, and it is characterized in that this system comprises: a plurality of user's plates of supporting rate model selection, the master control veneer of supporting rate model selection and the backup master control veneer of supporting rate model selection, wherein
Said each user's plate links to each other with said master control veneer and said backup master control veneer respectively, and each user's buttress carries out rate mode according to Business Stream character to be selected, and according to the rate mode of selecting business data flow is sent to continuous said master control veneer; Can't business data flow sent to said backup master control veneer according to the rate mode of selecting when said master control veneer obtains allocated bandwidth;
Said master control veneer receives the business data flow that said user's plate sends, and is that corresponding user's plate distributes bandwidth according to the transmission rate pattern of said business data flow;
Said backup master control veneer receives the business data flow that said user's plate sends, and is that corresponding user's plate distributes bandwidth according to the transmission rate pattern of said business data flow.
7. system as claimed in claim 6 is characterized in that, is provided with the rate mode selected cell in user's plate of said supporting rate model selection, and said rate mode selected cell carries out rate mode according to the character of business data flow and selects.
8. system as claimed in claim 6 is characterized in that, said user's plate comprises: digital subscriber line XDSL and Service Processing Unit; Said master control veneer is Ethernet switching chip LSW with the backup master control veneer; Or
Said user's plate comprises: XDSL; Said master control veneer is the service processing board with service processing function with the backup master control veneer.
9. one kind is improved the method that user board bandwidth distributes, and it is characterized in that, this method adopts the user's plate and the master control veneer of supporting rate model selection, comprising:
Said user's buttress carries out rate mode according to the character of business data flow to be selected, and according to the rate mode of selecting business data flow is sent to master control veneer; Said master control veneer distributes bandwidth according to the rate mode of the business data flow that receives for corresponding user's plate;
When said master control veneer can't provide allocated bandwidth for all user's plates; User's plate that can't be assigned to bandwidth is sent to the backup master control veneer with business data flow, and said backup master control veneer distributes bandwidth according to the rate mode of the business data flow that receives for corresponding user's plate.
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| CN103533306B (en) * | 2013-10-11 | 2017-01-18 | 浙江宇视科技有限公司 | Intelligent distribution device and method of video bandwidth |
| CN108243440B (en) * | 2016-12-26 | 2020-11-20 | 大唐移动通信设备有限公司 | Inter-board rate switching method and device |
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| WO2000022784A1 (en) * | 1998-10-14 | 2000-04-20 | General Datacomm, Inc. | Hot insertable utopia interface with automatic protection switching for backplane applications |
| CN1482769A (en) * | 2002-09-13 | 2004-03-17 | 华为技术有限公司 | Master-standby switching and load sharing system and method based on Ethernet access platform |
| CN1852201A (en) * | 2005-12-30 | 2006-10-25 | 华为技术有限公司 | Access-in apparatus capable of smooth updating band-width and method thereof |
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| WO2000022784A1 (en) * | 1998-10-14 | 2000-04-20 | General Datacomm, Inc. | Hot insertable utopia interface with automatic protection switching for backplane applications |
| CN1482769A (en) * | 2002-09-13 | 2004-03-17 | 华为技术有限公司 | Master-standby switching and load sharing system and method based on Ethernet access platform |
| CN1852201A (en) * | 2005-12-30 | 2006-10-25 | 华为技术有限公司 | Access-in apparatus capable of smooth updating band-width and method thereof |
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