CN102905318B

CN102905318B - Method, network server and access network (AN) for downlink bandwidth allocation in network

Info

Publication number: CN102905318B
Application number: CN201210370495.8A
Authority: CN
Inventors: 赵亚梅; 李然; 马召亮; 刘燕
Original assignee: Huawei Technologies Co Ltd
Current assignee: Zhoutuo Information Technology Jiangsu Co ltd
Priority date: 2012-09-28
Filing date: 2012-09-28
Publication date: 2015-05-27
Anticipated expiration: 2032-09-28
Also published as: CN102905318A

Abstract

The invention provides a method, a network server and an access network (AN) for downlink bandwidth allocation in network. The method includes that the network server acquires downlink bandwidth information of an access line which connects the AN and a terminal, the access line downlink bandwidth information of the AN is added to an online message which is sent by the terminal when accessing to a network access server (NAS) through the AN and received by the AN, and the network server at least distributes the downlink bandwidth information for actually controlling the flow sent to the terminal for the NAS according to the access line downlink bandwidth information of the AN. By means of the technical scheme, the NAS can acquire the downlink bandwidth information of a AN side without adding extra message and protocol interaction, thereby the proper downlink bandwidth for actually controlling the flow which is sent to the terminal can be distributed for the NAS, and the problem of packet loss of the downlink flow at AN can be effectively solved.

Description

A kind of method that in network, downlink bandwidth distributes, the webserver and AN

Technical field

The present invention relates to the communication technology, particularly relate to method, the webserver and AN that in a kind of network, downlink bandwidth distributes.

Background technology

Terminal is by access node (Access Node, AN) access network access server (NetworkAccess Server, NAS) under scene, NAS can according to the downlink bandwidth information of self configuration, or according to Certificate Authority and charging (Authentication Authorization and Accounting, AAA) the downlink bandwidth information that server or strategic server issue carries out bandwidth control and flow scheduling to terminal, to reduce network congestion and packet loss, be reached for the object that more multiple terminals provides more high-quality service.For NAS configurating downlink bandwidth, user equipment downlink flow, namely network side is to the flow of end side, and except the bandwidth by NAS configuration limits, the line attachment downlink bandwidth be also connected with terminal by AN node limits.If the downlink bandwidth value of NAS configuration is greater than the line attachment downlink bandwidth value of AN node, so within the unit interval, NAS sends to the downlink traffic of AN just may be greater than the downlink traffic that AN node sends to terminal, thus the problem of downlink traffic at AN node packet loss can occur.

In order to reduce packet loss, needing the downlink bandwidth information of NAS perception AN node, and being adjusted to the downlink bandwidth of terminal distribution according to this information in good time, speed limit and scheduling can be carried out at NAS to user equipment downlink flow, reduce user equipment downlink flow packet loss.In prior art, Access Node Control Protocol (Access Node Control Protocol can be configured, ANCP) function, ANCP provides the passage that control information between NAS and AN is transmitted, can the downlink bandwidth information of perception AN by this ANCP agreement NAS.

But configuration ANCP function can cause the problems such as configuration is complicated, maintenance cost is higher, the overhead of increase AN, NAS, even aaa server or strategic server, reduces system handling property.

Summary of the invention

Embodiments provide method, the webserver and AN that in a kind of network, downlink bandwidth distributes, for solving the problem of downlink traffic at AN node packet loss, also realize configuration complexity that downlink bandwidth adjust bring, problem that maintenance cost high by disposing ANCP for avoiding in prior art simultaneously.

First aspect, provide a kind of method that in network, downlink bandwidth distributes, described method comprises:

The webserver obtains the line attachment downlink bandwidth information that AN is connected with terminal, the described line attachment downlink bandwidth information of described AN be described AN receive terminal by send during described AN access network NAS reach the standard grade message time, reach the standard grade described in adding in message;

The described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

In the first possible implementation of described first aspect, the described webserver is described NAS, and the described webserver obtains the line attachment downlink bandwidth information that AN is connected with terminal, comprising:

Described NAS receive described AN send described in reach the standard grade message, described in reach the standard grade and comprise the described line attachment downlink bandwidth information of described AN in message.

In the first possible implementation of described first aspect, additionally provide the implementation that the second of described first aspect is possible, in the implementation that the second of described first aspect is possible, the described webserver is at least according to the described line attachment downlink bandwidth information of described AN, be used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow, comprise:

Described NAS sends message identifying to aaa server, and the certification receiving the described message identifying of correspondence that described aaa server sends accepts message;

Described NAS judges that described certification accepts whether to comprise the downlink bandwidth information that described aaa server is described terminal distribution in message, and according to the line attachment downlink bandwidth information of judged result and described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

In the implementation that the second of described first aspect is possible, additionally provide the third possible implementation of described first aspect, in the third possible implementation of described first aspect, the described described line attachment downlink bandwidth information according to judged result and described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS, comprising:

When described judged result be described certification accept in message, to comprise described aaa server be the downlink bandwidth information of described terminal distribution time, be the minimum value in the downlink bandwidth information of described terminal distribution and the described line attachment downlink bandwidth information of described AN by described aaa server, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described judged result be described certification accept in message, not comprise described aaa server be the downlink bandwidth information of described terminal distribution time, judge whether described NAS this locality is configured with the downlink bandwidth information controlling to be sent to described terminal flow, and according to local whether being configured with of described NAS control to be sent to the judged result of the downlink bandwidth information of described terminal flow and the line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

In the third possible implementation of described first aspect, additionally provide the 4th kind of possible implementation of described first aspect, in the 4th kind of possible implementation of described first aspect, described according to NAS this locality whether be configured with the judged result of downlink bandwidth information and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS, comprising:

Be configured with when controlling to be sent to the downlink bandwidth information of described terminal flow in described NAS this locality, the control of described this locality configuration is sent to the minimum value in the downlink bandwidth information of described terminal flow and the described line attachment downlink bandwidth information of described AN, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

Do not configure in described NAS this locality when controlling to be sent to the downlink bandwidth information of described terminal flow, by the described line attachment downlink bandwidth information of described AN, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

In the 5th kind of possible implementation of described first aspect, the described webserver is aaa server, and the described webserver obtains the line attachment downlink bandwidth information that described AN is connected with terminal, comprising:

Described aaa server receives the message identifying that described NAS sends, and described message identifying comprises the described line attachment downlink bandwidth information of described AN.

In the 5th kind of possible implementation of described first aspect, additionally provide the 6th kind of possible implementation of described first aspect, in the 6th kind of possible implementation of described first aspect, the described webserver is at least according to the described line attachment downlink bandwidth information of described AN, be used in for NAS divides the downlink bandwidth information that working control is sent to described terminal flow, comprise:

When described aaa server this locality is configured with for controlling the downlink bandwidth information being sent to described terminal flow, minimum value in the line attachment downlink bandwidth information of the described AN downlink bandwidth information of described this locality configuration comprised with the described message identifying received, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described aaa server not to be configured in this locality control to be sent to the downlink bandwidth information of described terminal flow time, by the described line attachment downlink bandwidth information of described AN, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS;

Described aaa server sends certification to described NAS and accepts message, and described certification receives message and is included as the downlink bandwidth information that described working control that described NAS determines is sent to described terminal flow.

Second aspect, provide a kind of method that in network, downlink bandwidth distributes, described method comprises: the reach the standard grade message of AN receiving terminal by sending during described AN access network NAS;

Described AN adds the line attachment downlink bandwidth information that described AN is connected with described terminal in described message of reaching the standard grade;

The message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to the webserver by described AN, so that the described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

In the first possible implementation of described second aspect, additionally provide the first possible implementation kind of described second aspect, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to the webserver by described AN, so that the described webserver is at least according to the line attachment downlink bandwidth information of described AN, be used in for NAS divides the downlink bandwidth information that working control is sent to described terminal flow, comprise:

When the described webserver is described NAS, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to described NAS by described AN, so that described NAS is at least according to the line attachment downlink bandwidth information of described AN, for described NAS divides the downlink bandwidth information being used in downlink traffic and controlling; Or,

When the described webserver is AAA, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to described NAS by described AN, and by described NAS, the message identifying of the described line attachment comprising described AN is sent to described aaa server, so that described aaa server, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

The third aspect, provide the webserver that in a kind of network, downlink bandwidth distributes, the described webserver comprises:

Acquiring unit, for obtaining the line attachment downlink bandwidth information that AN is connected with terminal, the described line attachment downlink bandwidth information of described AN be described AN receive terminal by send during described AN access network NAS reach the standard grade message time, reach the standard grade described in adding in message;

Allocation units, for the described line attachment downlink bandwidth information of described AN at least obtained according to described acquiring unit, are used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

In the first possible implementation of the described third aspect, the described webserver is described NAS, described acquiring unit, by message of reaching the standard grade described in the line attachment downlink bandwidth information comprising described AN that receives described AN and send, obtains the line attachment downlink bandwidth information of described AN.

In the first possible implementation of the described third aspect, additionally provide the implementation that the second of the described third aspect is possible, in the implementation that the second of the described third aspect is possible, described allocation units also comprise:

Transmitting-receiving subelement, for sending message identifying to aaa server, and the certification receiving the described message identifying of correspondence that described aaa server sends accepts message;

Judgment sub-unit, for judging the described certification that described transmitting-receiving subelement receives accepts whether to comprise the downlink bandwidth information that described aaa server is described terminal distribution in message;

Determine subelement, for according to the judged result of described judgment sub-unit and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

In the implementation that the second of the described third aspect is possible, additionally provide the third possible implementation of the described third aspect, in the third possible implementation of the described third aspect, when described judgment sub-unit judge described certification accept in message, to comprise described aaa server be the downlink bandwidth information of described terminal distribution time

Describedly determine that described aaa server is the minimum value in the downlink bandwidth information of described terminal distribution and the described line attachment downlink bandwidth information of described AN by subelement, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described judgment sub-unit judge described certification accept in message, not comprise described aaa server be the downlink bandwidth information of described terminal distribution time, judge whether described NAS this locality is configured with and control to be sent to the downlink bandwidth information of described terminal flow,

Whether described described NAS this locality determining that subelement judges according to described judgment sub-unit is configured with the judged result controlling to be sent to the downlink bandwidth information of described terminal flow, and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information controlled for downlink traffic of described NAS.

In the third possible implementation of the described third aspect, additionally provide the 4th kind of possible implementation of the described third aspect, in the 4th kind of possible implementation of the described third aspect, when described judgment sub-unit judges that the configuration of described NAS this locality controls to be sent to the downlink bandwidth information of described terminal flow

Describedly determine that the control of described this locality configuration is sent to minimum value in the downlink bandwidth information of described terminal flow and the described line attachment downlink bandwidth information of described AN by subelement, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described judgment sub-unit judge described NAS this locality do not configure control be sent to the downlink bandwidth information of described terminal flow time, by the described line attachment downlink bandwidth information of described AN, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

In the 4th kind of possible implementation of the described third aspect, additionally provide the 5th kind of possible implementation of the described third aspect, in the 5th kind of possible implementation of the described third aspect, the described webserver is aaa server,

The message identifying comprising the described line attachment downlink bandwidth information of described AN that described acquiring unit sends by receiving described NAS, the described line attachment downlink bandwidth information of the described AN that message of reaching the standard grade described in acquisition carries.

In the 5th kind of possible implementation of the described third aspect, additionally provide the 6th kind of possible implementation of the described third aspect, in the 6th kind of possible implementation of the described third aspect, described allocation units also comprise judgment sub-unit and determine subelement, wherein

Described judgment sub-unit, during for judging whether described aaa server this locality is configured with for controlling the downlink bandwidth information being sent to described terminal flow;

Determine subelement, during for judging that when described judgment sub-unit described aaa server this locality is configured with for controlling the downlink bandwidth information being sent to described terminal flow, by the minimum value in the downlink bandwidth information of described this locality configuration and the described line attachment downlink bandwidth information of described AN, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described judgment sub-unit judge described aaa server not to be configured in this locality control to be sent to the downlink bandwidth information of described terminal flow time, describedly determine that subelement is by the described line attachment downlink bandwidth information of described AN, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS;

Correspondingly, the described webserver also comprises transmitting element,

Described transmitting element, accepts message for sending certification to described NAS, and described certification receives message and is included as the downlink bandwidth information that described working control that described NAS determines is sent to described terminal flow.

Fourth aspect, provide the access node AN that in a kind of network, downlink bandwidth distributes, described AN comprises:

Receiving element, for the reach the standard grade message of receiving terminal by sending during described AN access network NAS;

Adding device, for adding the line attachment downlink bandwidth information that described AN is connected with described terminal in message of reaching the standard grade described in receiving at described receiving element;

Transmitting element, for described adding device is added described AN described line attachment downlink bandwidth information after described in message of reaching the standard grade send to the webserver, so that the described webserver is at least according to the line attachment downlink bandwidth information of described AN, be used in for NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

In the first possible implementation of described fourth aspect, when the described webserver is described NAS, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to described NAS by described transmitting element, so that described NAS is at least according to the line attachment downlink bandwidth information of described AN, for described NAS divides the downlink bandwidth information being used in downlink traffic and controlling; Or,

When the described webserver is AAA, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to described NAS, and by described NAS, the message identifying of the described line attachment comprising described AN is sent described aaa server, so that described aaa server is at least according to the line attachment downlink bandwidth information of described AN, be used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Pass through technique scheme, the described webserver contains the message of reaching the standard grade of the bandwidth information of the line attachment that described AN is connected with described terminal by receiving package, obtain the line attachment downlink bandwidth information that described AN is connected with terminal, the described webserver is at least according to the described line attachment downlink bandwidth information of described AN, the downlink bandwidth information that working control is sent to described terminal flow is used in for described NAS divides, because described message of reaching the standard grade is the message of terminal by sending during described AN access NAS, therefore, technique scheme can when not increasing extra message and protocol interaction, described NAS just can know the downlink bandwidth information of described AN side, and then can be used in for described NAS divides the suitable downlink bandwidth that working control is sent to described terminal flow, effectively can solve the problem of downlink traffic at described AN node packet loss, also effectively avoid realizing by disposing ANCP the configuration complexity that downlink bandwidth adjust brings in prior art simultaneously, the problem that maintenance cost is high.

Accompanying drawing explanation

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

The schematic flow sheet of the method that downlink bandwidth distributes in a kind of network that Fig. 1 provides for the embodiment of the present invention;

A kind of specific implementation schematic flow sheet of the method that Fig. 2 distributes for downlink bandwidth in a kind of network shown in Fig. 1;

The another kind of specific implementation schematic flow sheet of the method that Fig. 3 distributes for downlink bandwidth in a kind of network shown in Fig. 1;

The schematic flow sheet of the method that downlink bandwidth distributes in the another kind of network that Fig. 4 provides for the embodiment of the present invention;

The network server structure schematic diagram that in a kind of network that Fig. 5 provides for the embodiment of the present invention, downlink bandwidth distributes;

A kind of implementation structural representation of the webserver that Fig. 5 A distributes for downlink bandwidth in a kind of network shown in Fig. 5;

The another kind of implementation structural representation of the webserver that Fig. 5 B distributes for downlink bandwidth in a kind of network shown in Fig. 5;

The AN structural representation that in a kind of network that Fig. 6 provides for the embodiment of the present invention, downlink bandwidth distributes;

The network server structure schematic diagram that in the another kind of network that Fig. 7 provides for the embodiment of the present invention, downlink bandwidth distributes;

A kind of implementation structural representation of the webserver that Fig. 7 A distributes for downlink bandwidth in the another kind of network shown in Fig. 7;

The another kind of implementation structural representation of the webserver that Fig. 7 B distributes for downlink bandwidth in the another kind of network shown in Fig. 7;

The AN structural representation that in the another kind of network that Fig. 8 provides for the embodiment of the present invention, downlink bandwidth distributes.

Embodiment

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

In order to solve the problem that in prior art, special configuration ANCP function causes, in the embodiment of the present invention, make full use of the message occurred in existing procedure, the line attachment downlink bandwidth information of AN is added in existing message, make NAS can know the downlink bandwidth information of AN side, and owing to just utilizing existing message, do not need additionally to increase special message or protocol interaction, realization is disposed simply, maintenance cost is low, reduces process complexity and the performance pressures of each equipment.Concrete, the present invention provides following embodiment.

See Fig. 1, embodiments provide a kind of method that in network, downlink bandwidth distributes, described method comprises:

110, the webserver obtains the line attachment downlink bandwidth information that AN is connected with terminal, the described line attachment downlink bandwidth information of described AN be described AN receive terminal by send during described AN access network NAS reach the standard grade message time, reach the standard grade described in adding in message;

120, the described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Alternatively, the described webserver is described NAS, and the described webserver obtains the line attachment downlink bandwidth information that AN is connected with terminal, comprising:

Alternatively, the described webserver is aaa server, and the described webserver obtains the line attachment downlink bandwidth information that described AN is connected with terminal, comprising:

Alternatively, the described webserver can also be Network Policy Server.

Described NAS obtains and is used in after working control is sent to the downlink bandwidth information of described terminal flow for described NAS divides, the downlink bandwidth information that described NAS can be sent to described terminal flow according to described working control carries out bandwidth control and flow scheduling to the flow being sent to described terminal, to avoid network congestion and packet loss, be reached for the object that more multiple terminals provides more high-quality service.

Alternatively, the described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow, comprises:

Alternatively, the described described line attachment downlink bandwidth information according to judged result and described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS, comprising:

Alternatively, described according to NAS this locality whether be configured with the judged result of downlink bandwidth information and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS, comprising:

When described NAS this locality configuration controls to be sent to the downlink bandwidth information of described terminal flow, the control of described this locality configuration is sent to the minimum value in the downlink bandwidth information of described terminal flow and the described line attachment downlink bandwidth information of described AN, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

Alternatively, the described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for NAS divides the downlink bandwidth information that working control is sent to described terminal flow, comprises:

For the technical scheme of the clearer description embodiment of the present invention, be that described NAS and the technical scheme of described aaa server two kinds of situations to the embodiment of the present invention are described for the described webserver respectively below:

See Fig. 2, the described webserver is that described NAS distributes, and described NAS is that to obtain being sent to for working control the flow process of the downlink bandwidth information of described terminal flow according to described NAS as follows:

201: terminal is when accessing NAS by AN, and terminal sends to AN message of reaching the standard grade.

Wherein, when terminal accesses NAS by AN, can send message of reaching the standard grade, first this message of reaching the standard grade can send to AN by terminal, sends to NAS more afterwards by AN, thus makes terminal access NAS.

Alternatively, according to the concrete access way that terminal adopts, this message of reaching the standard grade can be DHCP (Dynamic Host Configuration Protocol, DHCP) message, IPV6 DHCP (Dynamic Host Configuration Protocol for IPv6, DHCPV6) message or Ethernet bearing peer-peer protocol (Point-to-Point Protocol Over Ethernet, PPPOE) message.Such as, when terminal adopts peer-peer protocol (Point-to-Point Protocol, PPP) to dial up on the telephone, terminal is PPPOE message to the message that AN sends.

202:AN adds the line attachment downlink bandwidth information that AN is connected with terminal in this reaches the standard grade message.

Such as, when message of reaching the standard grade is DHCP message, AN adds the line attachment downlink bandwidth information of this AN in the option option82 of DHCP message; Or,

When message of reaching the standard grade is DHCPV6 message, AN adds the line attachment downlink bandwidth information of this AN in the option option18 of DHCPV6 message; Or,

When message of reaching the standard grade is PPPOE message, AN adds the line attachment downlink bandwidth information of this AN in the option 0x105tag of PPPOE message.

Line attachment downlink bandwidth information due to this AN is the configuration information of AN self, and AN can know self information, reaches the standard grade in the corresponding option of message described in can the line attachment downlink bandwidth information of this AN being added in the manner described above afterwards.

The message of reaching the standard grade of the line attachment downlink bandwidth information that with the addition of AN is sent to NAS by 203:AN.

Now, NAS has just known the line attachment downlink bandwidth information of AN.

204:NAS sends authentication request packet to aaa server, to carry out terminal authentication.

205: after certification is passed through, the NAS certifications receiving aaa server transmission accept message.

206:NAS judges certification accepts whether to comprise in message the downlink bandwidth information of aaa server configuration, if so, performs step 207, otherwise, perform step 208.

207:NAS compares the downlink bandwidth information of aaa server configuration and the line attachment downlink bandwidth information of AN, by the minimum value in both, is defined as the user equipment downlink bandwidth information finally come into force.

208:NAS judges whether this locality is configured with downlink bandwidth information, if so, performs step 209, otherwise performs step 210.

The downlink bandwidth information of the more local configuration of 209:NAS and the line attachment downlink bandwidth information of AN, by the minimum value in both, be defined as the user equipment downlink bandwidth information finally come into force.

The line attachment downlink bandwidth information of AN is defined as the user equipment downlink bandwidth information finally come into force by 210:NAS.

After determining at NAS the user equipment downlink bandwidth information finally come into force, just can carry out bandwidth control and flow scheduling according to this information to terminal, to reduce network congestion and packet loss, be reached for the object that more multiple terminals provides more high-quality service.

In addition, the user equipment downlink bandwidth value that the present embodiment finally comes into force more than the line attachment downlink bandwidth value of AN, can not can reduce the packet loss at AN place.

Optionally, can configure unlatching or closing function in the present embodiment on NAS, when being configured to open, NAS completes the configuration of downlink bandwidth value according to above-mentioned flow process; When being configured to close, NAS conventionally can complete the configuration of downlink bandwidth value.

In the present embodiment, the downlink bandwidth information of self can be sent to NAS by AN, the downlink bandwidth value that NAS can send with reference to this AN when configuring the downlink bandwidth information of self, the downlink bandwidth value that NAS can be avoided to configure is greater than the downlink bandwidth value of AN, and then reduces the packet loss at AN place.

Participate in Fig. 3, the described webserver is described aaa server, and described NAS obtains described aaa server and issues that to be sent to the flow process of the downlink bandwidth information of described terminal flow for working control as follows:

301: terminal is when accessing NAS by AN, and terminal sends to AN message of reaching the standard grade.

302:AN adds the line attachment downlink bandwidth information of AN in this reaches the standard grade message.

The message of reaching the standard grade of the line attachment downlink bandwidth information that with the addition of AN is sent to NAS by 303:AN.

The particular content of 301 ~ 303 can see step 201 ~ 203.

The line attachment downlink bandwidth information of AN is sent to aaa server by 304:NAS, and such as, this information can be carried in authentication request packet and send to aaa server by NAS.

305:AAA server judges whether this locality is assigned with downlink bandwidth information, if so, performs step 306, otherwise performs step 307.

The downlink bandwidth information of the more local distribution of 306:AAA server and the line attachment downlink bandwidth information of AN, by the minimum value in both, be defined as the user equipment downlink bandwidth information finally come into force.

The line attachment downlink bandwidth information of AN is defined as the user equipment downlink bandwidth information finally come into force by 307:AAA server.

The user equipment downlink bandwidth information finally come into force can be sent to NAS by aaa server, and such as, the user equipment downlink bandwidth information finally come into force can be received message by certification and send to NAS by aaa server.Afterwards, the user equipment downlink bandwidth information that NAS finally can come into force according to this, carries out bandwidth control and flow scheduling to terminal, to reduce network congestion and packet loss, is reached for the object that more multiple terminals provides more high-quality service.

Wherein, this user equipment downlink bandwidth information finally come into force can be that aaa server accepts to send to NAS in message in certification.

Optionally, can configure unlatching or closing function in the present embodiment on aaa server, when being configured to open, aaa server completes the configuration of downlink bandwidth value according to above-mentioned flow process; When being configured to close, aaa server conventionally can complete the configuration of downlink bandwidth value.

Visible, because described message of reaching the standard grade is the message of described terminal by sending during described AN access NAS, by comprising the line attachment downlink bandwidth information that described AN connects in described terminal in described message of reaching the standard grade, and the downlink bandwidth information of the described line attachment of described AN is sent to the described webserver by message of reaching the standard grade described in passing through, reasonably divide for described NAS the downlink bandwidth information that working control is sent to described terminal flow that is used in for the described webserver, therefore, technique scheme can when not increasing extra message and protocol interaction, described NAS just can know the downlink bandwidth information of described AN side, and then can be used in for described NAS divides the suitable downlink bandwidth that working control is sent to described terminal flow, effectively can solve the problem of downlink traffic at described AN node packet loss, also effectively avoid realizing by disposing ANCP the configuration complexity that downlink bandwidth adjust brings in prior art simultaneously, the problem that maintenance cost is high.

See Fig. 4, embodiments provide a kind of method that in network, downlink bandwidth distributes, described method comprises:

The message of reaching the standard grade that 410:AN receiving terminal sends when accessing NAS by described AN;

420: described AN adds the line attachment downlink bandwidth information that described AN is connected with described terminal in described message of reaching the standard grade;

The message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to the webserver by 430: described AN, so that the described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Alternatively, according to the concrete access way that described terminal adopts, described in reach the standard grade message can for DHCP message, DHCPV6 message or PPPOE message.Such as, when described terminal adopts PPP to dial up on the telephone, message of reaching the standard grade described in described terminal sends to described AN is PPPOE message.

Alternatively, described AN in described message of reaching the standard grade, add line attachment downlink bandwidth information that described AN is connected with terminal can in the following way:

When described message of reaching the standard grade is DHCP message, described AN adds the described line attachment downlink bandwidth information of described AN in the option option82 of DHCP message; Or,

When described message of reaching the standard grade is DHCPV6 message, described AN adds the described line attachment downlink bandwidth information of described AN in the option option18 of DHCPV6 message; Or,

When described message of reaching the standard grade is PPPOE message, described AN adds the described line attachment downlink bandwidth information of described AN in the option 0x105tag of PPPOE message.

Alternatively, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN is sent to the webserver by described AN, so that the described webserver is at least according to the line attachment downlink bandwidth information of described AN, be used in for NAS divides the downlink bandwidth information that working control is sent to described terminal flow, comprise:

Visible, the line attachment downlink bandwidth information that described AN connects in described terminal by comprising described AN in described message of reaching the standard grade, and the downlink bandwidth information of the described line attachment of described AN is sent to the described webserver by message of reaching the standard grade described in passing through, so that the described webserver reasonably divides for described NAS the downlink bandwidth information that working control is sent to described terminal flow that is used in, therefore, technique scheme can when not increasing extra message and protocol interaction, described NAS just can know the downlink bandwidth information of described AN side, and then can be used in for described NAS divides the suitable downlink bandwidth that working control is sent to described terminal flow, effectively can solve the problem of downlink traffic at described AN node packet loss, also effectively avoid realizing by disposing ANCP the configuration complexity that downlink bandwidth adjust brings in prior art simultaneously, the problem that maintenance cost is high.

See Fig. 5, embodiments provide the structural representation of the webserver 50 that downlink bandwidth distributes in a kind of network, the described webserver 50 comprises:

Acquiring unit 51, for obtaining the line attachment downlink bandwidth information that AN is connected with terminal, the described line attachment downlink bandwidth information of described AN be described AN receive terminal by send during described AN access network NAS reach the standard grade message time, reach the standard grade described in adding in message;

Allocation units 52, at least according to the described line attachment downlink bandwidth information of the described AN of described acquiring unit 51 acquisition, are used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Alternatively, the described webserver 50 is described NAS, and described acquiring unit 51, by message of reaching the standard grade described in the line attachment downlink bandwidth information comprising described AN that receives described AN and send, obtains the line attachment downlink bandwidth information of described AN.

Alternatively, see Fig. 5 A, described allocation units 52 also comprise:

Transmitting-receiving subelement 53, for sending message identifying to aaa server, and the certification receiving the described message identifying of correspondence that described aaa server sends accepts message;

Judgment sub-unit 54, for judging the described certification that described transmitting-receiving subelement 53 receives accepts whether to comprise the downlink bandwidth information that described aaa server is described terminal distribution in message;

Determine subelement 55, for according to the judged result of described judgment sub-unit 54 and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

Alternatively, when described judgment sub-unit 54 judge described certification accept in message, to comprise described aaa server be the downlink bandwidth information of described terminal distribution time,

Describedly determine that described aaa server is the minimum value in the downlink bandwidth information of described terminal distribution and the described line attachment downlink bandwidth information of described AN by subelement 55, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described judgment sub-unit 54 judge described certification accept in message, not comprise described aaa server be the downlink bandwidth information of described terminal distribution time, judge whether described NAS this locality is configured with and control to be sent to the downlink bandwidth information of described terminal flow,

Whether described described NAS this locality determining that subelement 55 judges according to described judgment sub-unit is configured with the judged result controlling to be sent to the downlink bandwidth information of described terminal flow, and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information controlled for downlink traffic of described NAS.

Alternatively, when described judgment sub-unit 54 judges that the configuration of described NAS this locality controls to be sent to the downlink bandwidth information of described terminal flow,

Describedly determine that the control of described this locality configuration is sent to minimum value in the downlink bandwidth information of described terminal flow and the described line attachment downlink bandwidth information of described AN by subelement 55, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described judgment sub-unit 54 judge described NAS this locality do not configure control be sent to the downlink bandwidth information of described terminal flow time, describedly determine that subelement 55 is by the described line attachment downlink bandwidth information of described AN, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

Alternatively, the described webserver 50 is aaa server,

Described acquiring unit 51 is by receiving the message identifying comprising the described line attachment downlink bandwidth information of described AN that described NAS sends, the described line attachment downlink bandwidth information of the described AN that message of reaching the standard grade described in acquisition carries.

Alternatively, see Fig. 5 B, described allocation units 52 also comprise judgment sub-unit 56 and determine subelement 57, wherein,

Described judgment sub-unit 56, during for judging whether described aaa server this locality is configured with for controlling the downlink bandwidth information being sent to described terminal flow;

Determine subelement 57, during for judging that when described judgment sub-unit 56 described aaa server this locality is configured with for controlling the downlink bandwidth information being sent to described terminal flow, by the minimum value in the downlink bandwidth information of described this locality configuration and the described line attachment downlink bandwidth information of described AN, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described judgment sub-unit 56 judge described aaa server not to be configured in this locality control to be sent to the downlink bandwidth information of described terminal flow time, describedly determine that subelement 57 is by the described line attachment downlink bandwidth information of described AN, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS;

Correspondingly, the described webserver 50 also comprises transmitting element 58,

Described transmitting element 58, accepts message for sending certification to described NAS, and described certification receives message and is included as the downlink bandwidth information that described working control that described NAS determines is sent to described terminal flow.

Visible, by the described webserver 50 that the embodiment of the present invention provides, message of reaching the standard grade described in the described webserver 50 receives is the message of described terminal by sending during described AN access NAS, by comprising the line attachment downlink bandwidth information that described AN connects in described terminal in described message of reaching the standard grade, the described webserver 50 reasonably can divide for described NAS the downlink bandwidth information that working control is sent to described terminal flow that is used in, therefore, technique scheme can when not increasing extra message and protocol interaction, described NAS just can know the downlink bandwidth information of described AN side, and then can be used in for described NAS divides the suitable downlink bandwidth that working control is sent to described terminal flow, effectively can solve the problem of downlink traffic at described AN node packet loss, also effectively avoid realizing by disposing ANCP the configuration complexity that downlink bandwidth adjust brings in prior art simultaneously, the problem that maintenance cost is high.

See Fig. 6, the embodiment of the present invention additionally provides the AN60 that in a kind of network, downlink bandwidth distributes, and described AN60 comprises:

Receiving element 61, for the reach the standard grade message of receiving terminal by sending during described AN access network NAS;

Adding device 62, for adding the line attachment downlink bandwidth information that described AN is connected with described terminal in message of reaching the standard grade described in described receiving element 61 reception;

Transmitting element 63, for described adding device 62 is added described AN described line attachment downlink bandwidth information after described in message of reaching the standard grade send to the webserver, so that the described webserver is at least according to the line attachment downlink bandwidth information of described AN, be used in for NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Alternatively, described AN60 in described message of reaching the standard grade, add line attachment downlink bandwidth information that described AN60 is connected with terminal can in the following way:

When described message of reaching the standard grade is DHCP message, described AN60 adds the described line attachment downlink bandwidth information of described AN60 in the option option82 of DHCP message; Or,

When described message of reaching the standard grade is DHCPV6 message, described AN60 adds the described line attachment downlink bandwidth information of described AN60 in the option option18 of DHCPV6 message; Or,

When described message of reaching the standard grade is PPPOE message, described AN60 adds the described line attachment downlink bandwidth information of described AN60 in the option 0x105tag of PPPOE message.

Alternatively, when the described webserver is described NAS, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN60 is sent to described NAS by described transmitting element 63, so that described NAS is at least according to the line attachment downlink bandwidth information of described AN60, for described NAS divides the downlink bandwidth information being used in downlink traffic and controlling; Or,

When the described webserver is aaa server, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN60 is sent to described NAS, and by described NAS, the message identifying of the described line attachment comprising described AN is sent described aaa server, so that described aaa server is at least according to the line attachment downlink bandwidth information of described AN60, be used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Visible, by the described AN60 that the embodiment of the present invention provides, the line attachment downlink bandwidth information that described AN60 connects in described terminal by comprising described AN60 in described message of reaching the standard grade, and the downlink bandwidth information of the described line attachment of described AN60 is sent to the described webserver by message of reaching the standard grade described in passing through, so that the described webserver is reasonably the downlink bandwidth information of described AN side, therefore, technique scheme can when not increasing extra message and protocol interaction, described NAS just can know the downlink bandwidth information of the described line attachment of described AN60, and then can be used in for described NAS divides the suitable downlink bandwidth that working control is sent to described terminal flow, effectively can solve the problem of downlink traffic at described AN60 node packet loss, also effectively avoid realizing by disposing ANCP the configuration complexity that downlink bandwidth adjust brings in prior art simultaneously, the problem that maintenance cost is high.

See Fig. 7, embodiments provide the structural representation of the webserver 70 that downlink bandwidth distributes in a kind of network, the described webserver 70 comprises:

Resolver 71, for obtaining the line attachment downlink bandwidth information that AN is connected with terminal, the described line attachment downlink bandwidth information of described AN be described AN receive that terminal sends when accessing NAS by described AN reach the standard grade message time, reach the standard grade described in adding in message;

Processor 72, at least according to the described line attachment downlink bandwidth information of the described AN of described resolver 71 acquisition, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Alternatively, the described webserver 70 is described NAS, and see Fig. 7 A, the described webserver 70 also comprises: receiver 73, to reach the standard grade message for receiving described in the line attachment downlink bandwidth information comprising described AN that described AN sends;

Described resolver 71 is by the line attachment downlink bandwidth information of the AN described in Receive message that reaches the standard grade described in described receiver 73 reception.

Alternatively, the described webserver 70 also comprises:

Transmitter 74, for sending message identifying to aaa server;

The certification of described receiver 73 also for receiving the described message identifying of correspondence that described aaa server sends accepts message;

When described processor 72 is also for judging the described certification that described receiver 73 receives accepts whether to comprise the downlink bandwidth information that described aaa server is described terminal distribution in message;

Described processor 72 also for according to the result of described judgement and the described line attachment downlink bandwidth information of described AN, determines the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

Alternatively, when described processor device 72 judge described certification accept in message, to comprise described aaa server be the downlink bandwidth information of described terminal distribution time,

Described aaa server is the minimum value in the downlink bandwidth information of described terminal distribution and the described line attachment downlink bandwidth information of described AN by described processor 72, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described processor 72 judge described certification accept in message, not comprise described aaa server be the downlink bandwidth information of described terminal distribution time, judge whether described NAS this locality is configured with and control to be sent to the downlink bandwidth information of described terminal flow,

Described processor 72 is also according to the result of described judgement, and the described line attachment downlink bandwidth information of described AN, determines the downlink bandwidth information controlled for downlink traffic of described NAS.

Alternatively, when described processor 72 judges that the configuration of described NAS this locality controls to be sent to the downlink bandwidth information of described terminal flow,

The control of described this locality configuration is sent to the minimum value in the downlink bandwidth information of described terminal flow and the described line attachment downlink bandwidth information of described AN by described processor 72, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described processor 72 judge described NAS this locality do not configure control be sent to the downlink bandwidth information of described terminal flow time, described processor 72, by the described line attachment downlink bandwidth information of described AN, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

Alternatively, the described webserver 70 is aaa server, and see Fig. 7 B, the described webserver 70 also comprises:

Receiver 75, for receiving the message identifying comprising the described line attachment downlink bandwidth information of described AN that described NAS sends;

Described resolver 71 obtains the described line attachment downlink bandwidth information of described AN by the described message identifying that described receiver 75 receives.

Alternatively, described processor 72 is also for judging whether described aaa server this locality is configured with the downlink bandwidth information for controlling to be sent to described terminal flow, when judging that described aaa server this locality is configured with for controlling the downlink bandwidth information being sent to described terminal flow, by the minimum value in the downlink bandwidth information of described this locality configuration and the described line attachment downlink bandwidth information of described AN, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS; Or,

When described processor 72 judge described aaa server not to be configured in this locality control to be sent to the downlink bandwidth information of described terminal flow time, by the described line attachment downlink bandwidth information of described AN, be defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS;

Correspondingly, the described webserver 70 also comprises:

Transmitter 76, accepts message for sending certification to described NAS, and described certification receives message and is included as the downlink bandwidth information that described working control that described NAS determines is sent to described terminal flow.

Visible, by the described webserver 70 that the embodiment of the present invention provides, message of reaching the standard grade described in the described webserver 70 receives is the message of described terminal by sending during described AN access NAS, by comprising the line attachment downlink bandwidth information that described AN connects in described terminal in described message of reaching the standard grade, the described webserver 70 reasonably can divide for described NAS the downlink bandwidth information that working control is sent to described terminal flow that is used in, therefore, technique scheme can when not increasing extra message and protocol interaction, described NAS just can know the downlink bandwidth information of described AN side, and then can be used in for described NAS divides the suitable downlink bandwidth that working control is sent to described terminal flow, effectively can solve the problem of downlink traffic at described AN node packet loss, also effectively avoid realizing by disposing ANCP the configuration complexity that downlink bandwidth adjust brings in prior art simultaneously, the problem that maintenance cost is high.

See Fig. 8, the embodiment of the present invention additionally provides the AN80 that in a kind of network, downlink bandwidth distributes, and described AN80 comprises:

Receiver 81, for the reach the standard grade message of receiving terminal by sending during described AN access network NAS;

Processor 82, for adding the line attachment downlink bandwidth information that described AN is connected with described terminal in message of reaching the standard grade described in described receiver 81 reception;

Transmitter 83, for described processor 82 be with the addition of described AN described line attachment downlink bandwidth information after described in message of reaching the standard grade send to the webserver, so that the described webserver is at least according to the line attachment downlink bandwidth information of described AN, be used in for NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Alternatively, described AN80 in described message of reaching the standard grade, add line attachment downlink bandwidth information that described AN80 is connected with terminal can in the following way:

When described message of reaching the standard grade is DHCP message, described AN80 adds the described line attachment downlink bandwidth information of described AN80 in the option option82 of DHCP message; Or,

When described message of reaching the standard grade is DHCPV6 message, described AN80 adds the described line attachment downlink bandwidth information of described AN80 in the option option18 of DHCPV6 message; Or,

When described message of reaching the standard grade is PPPOE message, described AN80 adds the described line attachment downlink bandwidth information of described AN80 in the option 0x105tag of PPPOE message.

Alternatively, when the described webserver is described NAS, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN80 is sent to described NAS by described transmitter 83, so that described NAS is at least according to the line attachment downlink bandwidth information of described AN80, for described NAS divides the downlink bandwidth information being used in downlink traffic and controlling; Or,

When the described webserver is aaa server, the message of reaching the standard grade of the described line attachment downlink bandwidth information comprising described AN80 is sent to described NAS, and by described NAS, the message identifying of the described line attachment comprising described AN80 is sent described aaa server, so that described aaa server is at least according to the line attachment downlink bandwidth information of described AN80, be used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow.

Visible, by the described AN80 that the embodiment of the present invention provides, the line attachment downlink bandwidth information that described AN80 connects in described terminal by comprising described AN80 in described message of reaching the standard grade, and the downlink bandwidth information of the described line attachment of described AN80 is sent to the described webserver by message of reaching the standard grade described in passing through, so that the described webserver reasonably divides for described NAS the downlink bandwidth information that working control is sent to described terminal flow that is used in, therefore, technique scheme can when not increasing extra message and protocol interaction, described NAS just can know the downlink bandwidth information of described AN80 side, and then can be used in for described NAS divides the suitable downlink bandwidth that working control is sent to described terminal flow, effectively can solve the problem of downlink traffic at described AN80 node packet loss, also effectively avoid realizing by disposing ANCP the configuration complexity that downlink bandwidth adjust brings in prior art simultaneously, the problem that maintenance cost is high.

Wherein, above-mentioned receiver 75 and transmitter 74 can for close be located at together with possess the equipment of sending function and receiving function, above-mentioned receiver 81 and transmitter 83 also can for close be located at together with possess the equipment of sending function and receiving function, the described equipment possessing sending function and receiving function can adopt netting twine, optical fiber, antenna to realize, and antenna can be linear antenna, loop aerial, array antenna etc.

Above-mentioned processor 72 or processor 82 can be central processing unit (Central Processing Unit, CPU), digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit (ASIC) (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (FieldProgrammable Gata Array, FPGA) or other programmable logic devices, discrete gate or transistor logic, discrete hardware components.

One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, foregoing routine can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: read-only memory (Read-Only Memory, English abbreviation is ROM), random-access memory (Random-Access Memory, RAM), magnetic disc or CD etc. various can be program code stored medium.

Last it is noted that above embodiment is only in order to exemplary illustration technical scheme of the present invention, be not intended to limit; Although be described in detail the beneficial effect that the present invention and the present invention bring with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of the claims in the present invention.

Claims

1. the method that in network, downlink bandwidth distributes, it is characterized in that, described method comprises:

The webserver obtains the line attachment downlink bandwidth information that access node AN is connected with terminal, the described line attachment downlink bandwidth information of described AN be described AN receive terminal by send during described AN access network access server NAS reach the standard grade message time, reach the standard grade described in adding in message;

The described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow;

Wherein, the described webserver is described NAS, and the described webserver obtains the line attachment downlink bandwidth information that AN is connected with terminal, comprising:

Described NAS receive described AN send described in reach the standard grade message, described in reach the standard grade and comprise the described line attachment downlink bandwidth information of described AN in message;

Wherein, the described webserver, at least according to the described line attachment downlink bandwidth information of described AN, is used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow, comprises:

Described NAS sends message identifying to authentication, authorization, accounting aaa server, and the certification receiving the described message identifying of correspondence that described aaa server sends accepts message;

Described NAS judges that described certification accepts whether to comprise the downlink bandwidth information that described aaa server is described terminal distribution in message, and according to the described line attachment downlink bandwidth information of judged result and described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS;

Wherein, the described described line attachment downlink bandwidth information according to judged result and described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS, comprising:

When described judged result be described certification accept in message, not comprise described aaa server be the downlink bandwidth information of described terminal distribution time, judge whether described NAS this locality is configured with the downlink bandwidth information controlling to be sent to described terminal flow, and according to local whether being configured with of described NAS control to be sent to the judged result of the downlink bandwidth information of described terminal flow and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS.

2. method according to claim 1, it is characterized in that, described whether being configured with according to described NAS this locality controls to be sent to the judged result of the downlink bandwidth information of described terminal flow and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS, comprising:

3. the webserver that in network, downlink bandwidth distributes, it is characterized in that, the described webserver comprises:

Acquiring unit, for obtaining the line attachment downlink bandwidth information that access node AN is connected with terminal, the described line attachment downlink bandwidth information of described AN be described AN receive terminal by send during described AN access network access server NAS reach the standard grade message time, reach the standard grade described in adding in message;

Allocation units, for the described line attachment downlink bandwidth information of described AN at least obtained according to described acquiring unit, are used in for described NAS divides the downlink bandwidth information that working control is sent to described terminal flow;

Wherein, the described webserver is described NAS, and described acquiring unit, by message of reaching the standard grade described in the line attachment downlink bandwidth information comprising described AN that receives described AN and send, obtains the line attachment downlink bandwidth information of described AN;

Wherein, described allocation units also comprise:

Transmitting-receiving subelement, for sending message identifying to authentication, authorization, accounting aaa server, and the certification receiving the described message identifying of correspondence that described aaa server sends accepts message;

Determine subelement, for according to the judged result of described judgment sub-unit and the described line attachment downlink bandwidth information of described AN, determine the downlink bandwidth information being sent to described terminal flow for working control of described NAS;

Wherein, when described judgment sub-unit judge described certification accept in message, to comprise described aaa server be the downlink bandwidth information of described terminal distribution time,

4. the webserver according to claim 3, is characterized in that,

When described judgment sub-unit judge described NAS this locality be configured with control be sent to the downlink bandwidth information of described terminal flow time,

When described judgment sub-unit judge described NAS this locality do not configure control be sent to the downlink bandwidth information of described terminal flow time,

Describedly determine that subelement is by the described line attachment downlink bandwidth information of described AN, is defined as the downlink bandwidth information being sent to described terminal flow for working control of described NAS.