CN104283812B - A kind of method and system for identifying user's access bandwidth - Google Patents
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Abstract
The present invention discloses a kind of method and system for identifying user's access bandwidth.Authentication platform receives the authentication information that user sends, the authentication information includes user account, the descending available bandwidth of user is found according to user account, the corresponding relation between the descending available bandwidth preserved in mapping table and DSCP values is searched, the corresponding relation is sent to BRAS；The DSCP values changed by BRAS according to the corresponding relation in user uplink IP packets, and the IP packets are issued into carrier network；When IP packets pass through the edge device of carrier network, the SRD of IDC outlets, the corresponding relation of record source address, source port and DSCP values are deployed in, and IP packets are sent to CP/SP.The present invention transmits the access bandwidth of user using dscp field in IP packets, and to assist CP/SP to provide different services come the user for different access bandwidths according to the information, operator can also provide the service of differentiation for different user according to the information.
Description
Technical field
The invention belongs to the IP network communications field, more particularly to a kind of method and system for identifying user's access bandwidth.
Background technology
With the scale covering of Internet and developing rapidly for Internet technology, based on IP（Internet protocol）Carry out
The internet video of transmission applies also just flourishing, high speed development.
Difference based on resolution ratio, current internet video is broadly divided into following several：1080p（It is full HD）、720p、
1080i、480p.Under same coded format, different resolution ratio correspond to different video code flows substantially, that is, different
Bandwidth demand.
In existing video code flow transmit process, due to video code flow supplier（Follow-up abbreviation CP/SP）It can not know
The available bandwidth of broadband user, therefore the code stream of its suitable access bandwidth can not be actively provided a user, it can only be answered by its video
Client selects there is provided several code stream options for user or is polled detection to select different codes by client
Stream.
On the other hand, operator also lacks from source and effectively identified under these users when developing high access bandwidth user
The effective means of row data flow, it is impossible to which the edge for entering backbone network in data is just ensured to customer flow.
Accordingly, it would be desirable to which a kind of effective means identify user's access bandwidth.
The content of the invention
In view of more than, the present invention proposes a kind of method and system for identifying user's access bandwidth.
According to an aspect of the present invention, the method for proposing mark user's access bandwidth, wherein：Authentication platform receives user and sent
Authentication information, the authentication information includes user account, finds the descending available bandwidth of user according to user account, searches mapping
Corresponding relation between the descending available bandwidth and DSCP values that are preserved in table, BRAS is sent to by the corresponding relation；By BRAS roots
The DSCP values changed according to the corresponding relation in user uplink IP packets, and the IP packets are issued into carrier network；Work as IP
When packet passes through the edge device of carrier network, the SRD of IDC outlets, record source address, source port and DSCP values are deployed in
Corresponding relation, and IP packets are sent to CP/SP.
In one embodiment of the invention, the method for mark user's access bandwidth, CP/SP receives IP packets,
Dscp field value in IP data packet heads searches corresponding available downstream bandwidth in the mapping table that operator provides, and selects
With the code stream of bandwidth match.
In one embodiment of the invention, the method for mark user's access bandwidth, when downlink traffic enters key
During network edge, SRD matches source address of the list item in the list item in SRD, SRD including data flow, source port, destination address, mesh
Port, the DSCP values of protocol number and data flow, corresponding DSCP is selected according to the destination address of data flow, destination interface
Value, and DSCP values are carried in the IP packets of downlink traffic.
In one embodiment of the invention, the method for mark user's access bandwidth, operator passes through offline mode
Mapping table is sent to CP/SP, or the interface with CP/SP is provided by operator, mapping table is sent to CP/SP by the interface.
In one embodiment of the invention, also preserve descending in the method for mark user's access bandwidth, mapping table
Corresponding relation between available bandwidth, DSCP values and user gradation.
According to a further aspect of the invention, it is also proposed that mark user's access bandwidth system, wherein：Authentication platform, is configured at
The authentication information that user sends is received, the authentication information includes user account, the descending available of user is found according to user account
Bandwidth, searches the corresponding relation between the descending available bandwidth preserved in mapping table and DSCP values, the corresponding relation is sent to
BRAS；The DSCP values changed by BRAS according to the corresponding relation in user uplink IP packets, and the IP packets are issued into fortune
Seek business's network；SRD, is deployed in IDC outlets, is configured at record source address, the corresponding relation of source port and DSCP values, and by IP numbers
CP/SP is sent to according to bag.
In one embodiment of the invention, the system of mark user's access bandwidth, in addition to：CP/SP, is configured at
Receive IP packets, dscp field value in IP data packet heads search in the mapping table that operator provides it is corresponding it is available under
Row bandwidth, and select the code stream with bandwidth match.
In one embodiment of the invention, the system of mark user's access bandwidth, downlink traffics of the SRD in user
During into backbone edges, source address of the list item in the list item in SRD, SRD including data flow, source port, destination are matched
Location, destination interface, the DSCP values of protocol number and data flow, it is corresponding according to the destination address of data flow, destination interface selection
DSCP values, and DSCP values are carried in the IP packets of downlink traffic.
In one embodiment of the invention, the system of mark user's access bandwidth, operator passes through offline mode
Mapping table is sent to CP/SP, or the interface with CP/SP is provided by operator, mapping table is sent to CP/SP by the interface.
In one embodiment of the invention, also preserve descending in the system of mark user's access bandwidth, mapping table
Corresponding relation between available bandwidth, DSCP values and user gradation.
The present invention by identifying user's access bandwidth so that so that CP/SP can actively provide a user its suitable access
The code stream of bandwidth.Further, operator can effectively identify the downstream data flow of these users from source.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 show the value of the dscp field of RFC2597 suggestions.
Fig. 2 show using DSCP to identify user gradation and user's access bandwidth.
Fig. 3 show the method flow diagram that user's access bandwidth is identified in one embodiment of the invention.
Fig. 4 show the method flow diagram that user's access bandwidth is identified in another embodiment of the present invention.
Fig. 5 show the structural representation for the system that user's access bandwidth is identified in one embodiment of the invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless had in addition
Body illustrates that the part and the positioned opposite and numerical value of step otherwise illustrated in these embodiments is not limited the scope of the invention.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
The description only actually at least one exemplary embodiment is illustrative below, never as to the present invention
And its any limitation applied or used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing a part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
In the head-coating structure of IP packets as defined in RFC791,8-13 are Differentiated Services
Code Point（Differentiated services code points, DSCP）, i.e., for realizing the differentiated service in IP data packet transfer procedures.Should
Field has 6, and that disposes in a network at present is also main using first 3, i.e., usually said IPP（IP Precedence,
IP priority）Position.The DSCP values of 6 have 64 kinds of possible values.Existing RFC has been merely given as following more common build
View：
Default PHB（Per hop behavior, per hop behavior）The PHB of-acquiescence, value is 0.
Expedited Forwarding（EF）The PHB of PHB-fast-forwarding, value is 46.
Assured Forwarding（AF）The PHB of PHB-guarantee forwarding, value show RFC2597 referring to Fig. 1, Fig. 1
It is recommended that dscp field value.
Class Selector PHBs-compatible with IPP PHB.
For the PHB of AF classes, RFC2597 also gives specific value suggestion, and it is divided into 4 Class（Class1,
Class2, Class3, Class4）, corresponding 3 classes forward demand to each Class respectively again（Low Drop, Med Drop, High
Drop）, each PHB value suggestion such as Fig. 1.
In existing RFC, how concrete regulation does not distinguish different Class, or how by different flows
It is put into different Class, the present invention is by the network boundary of operator, according to the access bandwidth information pair of broadband user
This 4 class Class is encoded and assignment, the corresponding different Class values of different access rate scopes, specific corresponding to relation
Can be as shown in Figure 2.Fig. 2 show using DSCP to identify user gradation and user's access bandwidth.Certainly, Fig. 2 is example
Property explanation, operator how many can plant divide Class according to the bandwidth types of its broadband user, however it is not limited to be arranged in Fig. 2
4 classes gone out.DSCP value has 64 kinds（0-63）, can neatly be divided into multiple groups, that is, be divided into multiple Class.
In the broadband network, user has different access band width in physical, typical such as 2M, 4M, 8M, 16M.Such as above institute
State, the video definition of current main flow is also substantially 4 kinds：1080p（It is full HD）、720p、1080i、480p.If operator
The available bandwidth information of user can be carried by the way that DSCP values are real-time in network boundary, and in IP data forwarding process,
The field will not typically change, and CP/SP is after IP packets are received, it is possible to select suitable clear according to the information
Degree and the video code flow of suitable coded format send user to.Such as, compression of the coding of SD form to video is larger, but clearly
Clear degree can be reduced；The coding of high-definition format preserves the original quality of video as far as possible, and definition can be improved, but need the number of transmission
It is just many according to amount, it is desirable to higher access bandwidth.
For every class broadband user, the grade that RFC defines can also be continued to use and be refined as 3 class clients again：Gold medal, silver medal, copper
Board.Wherein, gold, silver and bronze are used to divide user gradation, it will be understood by those skilled in the art that the present invention can be marked with other
Know to represent different grades, can also be not limited to be divided into 3 class hierarchies, can be changed as needed.The present invention's
In one embodiment, the mark of the class user of gold, silver and bronze three can be realized by operator, for example, the mapping table in Fig. 2 come
Realize.It can also be identified according to CP/SP itself demand, i.e. according to the attribute of itself user（Defined with operator
User property it is substantially unrelated）To change or redefine DSCP values.
With being continuously increased for network insertion bandwidth, the available access bandwidth species of user may change, so
It is accomplished by operator and one interface is provided, when the mapping table in Fig. 2 updates, operator notifies this to CP/SP in time
The change of mapping relations.
Based on the above, the present invention proposes in a kind of packet using IP dscp field to transmit the access band of user
Width, to assist CP/SP to provide different services come the user for different access bandwidths according to the information, operator can also basis
The information to provide the service of differentiation for different user.Improve bearer network intellectuality, strengthen terminal user's attribute with it is upper
The collaboration of layer application.
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
Fig. 3 show the method flow diagram that user's access bandwidth is identified in one embodiment of the invention, and this method includes following
Step：
Step 31, authentication platform receives the authentication information that user sends, and the authentication information includes user account, according to user
Account finds the descending available bandwidth of user, searches the corresponding pass between the descending available bandwidth preserved in mapping table and DSCP values
System, BRAS is sent to by the corresponding relation（Broadband Remote Access Server, BAS Broadband Access Server）.
In another embodiment of the invention, descending available bandwidth, DSCP values and user gradation are also preserved in mapping table
Between corresponding relation.Mapping table can be as shown in Figure 2.Wherein, descending available bandwidth is, for example, 1M, and DSCP value is, for example,
11。
When preserving the corresponding relation between descending available bandwidth and DSCP values in mapping table, i.e. pass through AF and mark user institute
Class, do not differentiate between the grade of user.This mode does not need IP network to enable QoS, it is only necessary to being capable of the transparent transmission DSCP values
.
When preserving the corresponding relation between descending available bandwidth, DSCP values and user gradation in mapping table, i.e. mark is used
The grade of Class and user where family.This mode needs IP network to enable QoS, refers to the router in IP network saturating
While passing the dscp field, moreover it is possible to carry out differentiation scheduling according to the DSCP values of data flow.For the stream of different brackets user
Amount, can carry out differentiation scheduling, for example, user gradation is divided into gold, silver and bronze, then the flow of the golden user of priority scheduling, then dispatch silver
The flow of user, then dispatch the flow of copper user.
Step 32, the DSCP values changed by BRAS according to the corresponding relation in user uplink IP packets, and by the IP numbers
Carrier network is issued according to bag.
Step 33, when IP packets pass through the edge device of carrier network, it is deployed in IDC（Internet Data
Center, Internet data center）The SRD of outlet（Stateful Record Device, stateful mapped device, for example,
Smart6）, the corresponding relation of record source address, source port and DSCP values, and IP packets are sent to CP/SP.
Also as shown in figure 3, another embodiment of the present invention, further comprising the steps of：
Step 34, CP/SP receives IP packets, and the dscp field value in IP data packet heads is searched carrier authorization and put down
Corresponding available downstream bandwidth in the mapping table that platform is provided, and select the code stream with bandwidth match.Such as, the user to 2M sends
The code stream of SD, the user to 8M sends the code stream of high definition.
Wherein, operator passes through offline mode（For example, transmitted by ftp file, the mode such as mail）Send and reflect to CP/SP
Firing table, or the interface with CP/SP is provided by operator, mapping table is sent to CP/SP by the interface.
Fig. 4 show the method flow diagram that user's access bandwidth is identified in another embodiment of the present invention, wherein, will by SDR
The mark of uplink traffic is mapped in downlink traffic, to realize significant notation and the differentiated service to user's up-downgoing stream.Should
Method comprises the following steps：
Step 41, when downlink traffic enters backbone edges, the list item that SRD is matched in the list item in SRD, SRD includes
The source address of data flow, source port, destination address, destination interface, the DSCP values of protocol number and data flow, according to data flow
Destination address, destination interface select corresponding DSCP values, and by the carrying of DSCP values in the IP packets of downlink traffic.
Step 42, operator carries out differentiation scheduling according to the DSCP values to the downlink traffic of user.
Fig. 5 show the structural representation for the system that user's access bandwidth is identified in one embodiment of the invention.The system bag
Include：Authentication platform, BRAS and SRD.
Authentication platform, is configured at and receives the authentication information that user sends, the authentication information includes user account, according to user
Account finds the descending available bandwidth of user, searches the corresponding pass between the descending available bandwidth preserved in mapping table and DSCP values
System, BRAS is sent to by the corresponding relation.
Also preserved in another embodiment of the present invention, in mapping table descending available bandwidth, DSCP values and user gradation it
Between corresponding relation.
BRAS, the DSCP values changed according to the corresponding relation in user uplink IP packets, and the IP packets are issued
Carrier network.
SRD, is deployed in IDC outlets, is configured at record source address, the corresponding relation of source port and DSCP values, and by IP numbers
CP/SP is sent to according to bag.
Also as shown in figure 5, another embodiment of the present invention, in addition to：
CP/SP, is configured at reception IP packets, and the dscp field value in IP data packet heads searches what operator provided
Corresponding available downstream bandwidth in mapping table, and select the code stream with bandwidth match.
Wherein, operator sends mapping table by offline mode to CP/SP, or is provided and connect with CP/SP by operator
Mouthful, mapping table is sent to CP/SP by the interface.
In another embodiment of the invention, SRD is when the downlink traffic of user enters backbone edges, in matching SRD
List item, the list item in SRD includes source address, source port, destination address, destination interface, protocol number and the data of data flow
The DSCP values of stream, select corresponding DSCP values, and DSCP values are carried descending according to the destination address of data flow, destination interface
In the IP packets of flow.
Operator carries out differentiation scheduling according to the DSCP values to the downlink traffic of user.
Similar, the present invention can also be with the video playback for mobile subscriber, because mobile terminal has different
Screen size, different screen may correspond to present invention bandwidth mentioned above, by being built in PDSN（Packet Data
Serving Node, packet data serving node）Internal DPI（Deep-packet detection）Terminal class used in equipment identification user
Type, obtains the screen size of terminal, beats different dscp field values for the terminal uplink stream of different screen size by PDSN, realizes
For the suitable code stream automatic adaptation of different mobile terminal.
Prior art because not knowing about user's access bandwidth caused by code stream passively select, the present invention can by CP/SP actively
Selection is suitable for the code stream definition of user's available bandwidth.
In the existing RFC standards of flexible utilization of the present invention about DSCP definition and recommend value, it is completely compatible with standard.
Due to dscp field assignment in operator edge, up-downgoing flow mark mapping grasped completely by operator, from source
Effectively mark, end-to-end fully controllable.
By the standard, contacting between user property and upper strata CP/SP has been got through, operator has been improved and upstream and downstream is used
The service ability at family.
So far, the present invention is described in detail.In order to avoid the design of the masking present invention, this area institute is not described public
Some details known.Those skilled in the art can be appreciated how to implement technology disclosed herein as described above, completely
Scheme.
The method and device of the present invention may be achieved in many ways.For example, can by software, hardware, firmware or
Person's software, hardware, firmware any combinations come realize the present invention method and device.The step of for methods described it is above-mentioned
Order is not limited to order described in detail above merely to illustrate, the step of method of the invention, unless with other sides
Formula is illustrated.In addition, in certain embodiments, the present invention can be also embodied as recording to program in the recording medium, these
Program includes the machine readable instructions for being used to realize the method according to the invention.Thus, the present invention also covering storage is used to perform
The recording medium of the program of the method according to the invention.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel are it should be understood that above example is merely to illustrate, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
1. identify the method for user's access bandwidth, it is characterised in that：
Authentication platform receives the authentication information that user sends, and the authentication information includes user account, use is found according to user account
The descending available bandwidth at family, searches the descending available bandwidth and differentiated services code points preserved in mapping table（DSCP）Between value
Corresponding relation, BAS Broadband Access Server is sent to by the corresponding relation（BRAS）；
The DSCP values changed by BRAS according to the corresponding relation in user uplink IP packets, operator is issued by the IP packets
Network；
When IP packets pass through the edge device of carrier network, Internet data center is deployed in（IDC）What is exported has shape
State mapped device（SRD）, the corresponding relation of record source address, source port and DSCP values, and IP packets are sent to CP/SP.
2. the method for user's access bandwidth is identified according to claim 1, it is characterised in that：
CP/SP receives IP packets, and the dscp field value in IP data packet heads is searched right in the mapping table that operator provides
The available downstream bandwidth answered, and select the code stream with bandwidth match.
3. the method for mark user's access bandwidth according to claim 1 or claim 2, it is characterised in that：
When downlink traffic enters backbone edges, the list item that SRD is matched in the list item in SRD, SRD is with including the source of data flow
Location, source port, destination address, destination interface, the DSCP values of protocol number and data flow, according to the destination address of data flow, mesh
Port select corresponding DSCP values, and by the carrying of DSCP values in the IP packets of downlink traffic.
4. the method for mark user's access bandwidth according to claim 1 or claim 2, it is characterised in that：
Operator sends mapping table by offline mode to CP/SP, or provides the interface with CP/SP by operator, by this
Interface sends mapping table to CP/SP.
5. the method for mark user's access bandwidth according to claim 1 or claim 2, it is characterised in that：
The corresponding relation between descending available bandwidth, DSCP values and user gradation is also preserved in mapping table.
6. identify the system of user's access bandwidth, it is characterised in that：
Authentication platform, is configured at and receives the authentication information that user sends, the authentication information includes user account, according to user account
The descending available bandwidth of user is found, the corresponding relation between the descending available bandwidth preserved in mapping table and DSCP values is searched,
The corresponding relation is sent to BRAS；
BRAS, is configured at the DSCP values changed according to the corresponding relation in user uplink IP packets, and the IP packets are sent out
To carrier network；
SRD, is deployed in IDC outlets, is configured at record source address, the corresponding relation of source port and DSCP values, and by IP packets
It is sent to CP/SP.
7. the system of user's access bandwidth is identified according to claim 6, it is characterised in that also included：
CP/SP, is configured at reception IP packets, and the dscp field value in IP data packet heads searches the mapping that operator provides
Corresponding available downstream bandwidth in table, and select the code stream with bandwidth match.
8. the system of user's access bandwidth is identified according to claim 6 or 7, it is characterised in that：
SRD is when the downlink traffic of user enters backbone edges, the list item in matching SRD, and the list item in SRD includes data flow
Source address, source port, destination address, destination interface, the DSCP values of protocol number and data flow, according to the purpose of data flow
Address, destination interface select corresponding DSCP values, and DSCP values are carried in the IP packets of downlink traffic.
9. the system of user's access bandwidth is identified according to claim 6 or 7, it is characterised in that：
Operator sends mapping table by offline mode to CP/SP, or provides the interface with CP/SP by operator, by this
Interface sends mapping table to CP/SP.
10. the system of user's access bandwidth is identified according to claim 6 or 7, it is characterised in that：
The corresponding relation between descending available bandwidth, DSCP values and user gradation is also preserved in mapping table.
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| CN112637128B (en) * | 2020-11-25 | 2022-07-08 | 四川新网银行股份有限公司 | Identity mutual trust method and system for data center host |
| CN113285922B (en) * | 2021-04-22 | 2022-04-01 | 新华三信息安全技术有限公司 | Table item processing method and device |
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| CN102469087A (en) * | 2010-11-17 | 2012-05-23 | 中兴通讯股份有限公司 | Method and system for realizing control of quality of service, |
| CN103167318A (en) * | 2011-12-13 | 2013-06-19 | 中国电信股份有限公司 | Streaming media processing method, device, server and system |
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| CN102469087A (en) * | 2010-11-17 | 2012-05-23 | 中兴通讯股份有限公司 | Method and system for realizing control of quality of service, |
| CN103167318A (en) * | 2011-12-13 | 2013-06-19 | 中国电信股份有限公司 | Streaming media processing method, device, server and system |
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