CN107995125A - A kind of traffic scheduling method and device - Google Patents
A kind of traffic scheduling method and device Download PDFInfo
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- CN107995125A CN107995125A CN201711144532.2A CN201711144532A CN107995125A CN 107995125 A CN107995125 A CN 107995125A CN 201711144532 A CN201711144532 A CN 201711144532A CN 107995125 A CN107995125 A CN 107995125A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
- H04L47/2425—Traffic characterised by specific attributes, e.g. priority or QoS for supporting services specification, e.g. SLA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/56—Queue scheduling implementing delay-aware scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/50—Queue scheduling
- H04L47/62—Queue scheduling characterised by scheduling criteria
- H04L47/625—Queue scheduling characterised by scheduling criteria for service slots or service orders
- H04L47/6255—Queue scheduling characterised by scheduling criteria for service slots or service orders queue load conditions, e.g. longest queue first
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5061—Pools of addresses
Abstract
The application provides a kind of traffic scheduling method and device, this method are applied to resource pool controller, including：Detect the load parameter of each BRAS network elements in the resource pool of this resource pool controller control；For the load parameter of target BRAS network elements, the DHCP message response policy of the target BRAS network elements is determined；The DHCP message response policy determined is sent to the target BRAS network elements.The method provided using the application, can be according to the load parameter of BRAS network elements, determine the DHCP message response policy with the BRAS network elements, so as to promote to load the DHCP message that light BRAS network elements respond terminal at first, establish and connect with terminal so that the IPoE flows of terminal are scheduled to the light BRAS network elements of load and are forwarded to.
Description
Technical field
This application involves computer communication field, more particularly to a kind of traffic scheduling method and device.
Background technology
BRAS (Broadband Access Server, BAS Broadband Access Server) has flexible access authentication mode, has
The address management function of effect, powerful subscriber management function, and it is capable of providing abundant flexible business and control function.Wherein,
BRAS supports PPPoE (Point to Point Protocol over Ethernet, the point-to-point protocol based on Ethernet) to connect
Enter authentication mode and IPoE (IP over Ethernet, the Internet protocol based on Ethernet) access authentication mode.Wherein,
IPoE access authentications mode can refer to by DHCP (Dynamic Host Configuration Protocol, DynamicHost
Configuration protocol) message triggering etc. mode carry out access authentication.
In IPoE access authentication procedures, terminal can broadcast DHCP- to multiple BRAS network elements in BRAS resource pools
DISCOVER (DHCP discoveries) message.BRAS network elements are receiving the DHCP-DISCOVER messages, can extract the DHCP-
User information in DISCOVER messages, and using the user's information certification request is initiated to certificate server.When certification passes through
Afterwards, BRAS network elements can return to DHCP-OFFER (offer) message to user terminal.User terminal selecting received DHCP- at first
OFFER, and with send this at first received DHCP-OFFER messages BRAS network elements establish connect so that user terminal send
Flow is forwarded to via the BRAS.
However, when the BRAS loads indicated by user terminal at first received DHCP-OFFER messages are very heavy, user is whole
End is still established with the BRAS of load weight and is connected, and causes BRAS network element loads to aggravate, so that the work for considerably increasing BRAS is born
Lotus, greatly reduces the certification of BRAS network elements and message forwarding ground efficiency.
The content of the invention
In view of this, the application provides a kind of traffic scheduling method and device, to by the load parameter of BRAS network elements,
Determine the matched DHCP message response policy of load parameter with the BRAS network elements so that load light BRAS network elements and preferentially stand
DHCP message is responded, the BRAS network elements for loading weight are not responding to or postpone to respond DHCP message, so as to promote to load light
BRAS network elements are established with terminal and connected, therefore the IPoE flows of terminal are scheduled to the light BRAS network elements of load and are forwarded to.
Specifically, the application is achieved by the following technical solution：
According to the first aspect of the application, there is provided a kind of traffic scheduling method, the method are applied to resource pool controller,
Including：
Detect the load parameter of each BAS Broadband Access Server BRAS network elements in the resource pool of this resource pool controller control；
For the load parameter of target BRAS network elements, the dynamic host configuration protocol DHCP of the target BRAS network elements is determined
Message response strategy；The DHCP message response policy includes：Response delay duration or the instruction being not responding to；The target BRAS
Network element is any BRAS network elements in the resource pool；
The DHCP message response policy determined is sent to the target BRAS network elements.
According to the second aspect of the application, there is provided a kind of flow scheduling device, described device are applied to resource pool controller,
Including：
Detection unit, each BAS Broadband Access Server BRAS nets in resource pool for detecting the control of this resource pool controller
The load parameter of member；
Determination unit, for the load parameter for target BRAS network elements, determines the dynamic master of the target BRAS network elements
Machine configuration protocol DHCP message response strategy；The DHCP message response policy includes：Response delay duration or the finger being not responding to
Show；The target BRAS network elements are any BRAS network elements in the resource pool；
Transmitting element, for sending the DHCP message response policy determined to the target BRAS network elements.
The application proposes a kind of traffic scheduling method, and BRAS resource pool controllers can detect the money of this resouce controller control
The load parameter of each BRAS network elements in the pond of source；And according to the load parameter of BRAS network elements, determine the load with the BRAS network elements
The matched DCHP message responses strategy of parameter, and the DHCP message response policy that this is determined is sent to the BRAS network elements.
Due to controller can be in resource pool each BRAS network elements load parameter, for each BRAS network elements determine and its
Matched DHCP message response policy so that load light BRAS network elements and preferentially make an immediate response DHCP message, load the BRAS of weight
Network element is not responding to or postpones to respond DHCP message.Also, since terminal always with receiving indicated by dhcp response message at first
BRAS network elements, that is, load light BRAS network elements and establish connection, connection is established without the BRAS network element very heavy with the load, from
And realize and be forwarded to the IPoE flow schedulings of terminal to light BRAS network elements are loaded.
Brief description of the drawings
Fig. 1 is a kind of group-network construction figure of IPoE systems shown in one exemplary embodiment of the application；
Fig. 2 is a kind of interaction figure of IPoE access authentications shown in one exemplary embodiment of the application；
Fig. 3 is a kind of flow chart of traffic scheduling method shown in one exemplary embodiment of the application；
Fig. 4 is a kind of hardware structure diagram of resource pool controller shown in one exemplary embodiment of the application；
Fig. 5 is a kind of block diagram of flow scheduling device shown in one exemplary embodiment of the application.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During attached drawing, unless otherwise indicated, the same numbers in different attached drawings represent the same or similar key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.
It is only merely for the purpose of description specific embodiment in term used in this application, and is not intended to be limiting the application.
It is also intended in the application and " one kind " of singulative used in the attached claims, " described " and "the" including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wraps
Containing the associated list items purpose of one or more, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, do not departing from
In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
Referring to Fig. 1, Fig. 1 is a kind of group-network construction figure of IPoE systems shown in one exemplary embodiment of the application.
The networking of usual IPoE systems is mainly made of terminal, BRAS access devices and certificate server.
Wherein, above-mentioned terminal, refers to all by LAN or the user terminal of wide area network access band access device.
Above-mentioned BRAS access devices, also referred to as BRAS network elements, it may include the effect of three aspects：Before certification, resistance
Only user accesses Internet resources；In verification process, interacted with certificate server, complete the work(of authentication/mandate/charging
Energy；Pass through in certification rear, it is allowed to which user accesses authorized Internet resources.
In IPoE systems, DHCP service is configured with usual BRAS network elements, furthermore, it is understood that BRAS network elements can conduct
Dynamic Host Configuration Protocol server is terminal distribution IP address etc..Certainly, in the IPoE systems can also other configuration DHCP server, BRAS network elements
On be configured with DHCP-relay (DHCP relay), i.e. BRAS network elements are handed between both sides can be forwarded between terminal and Dynamic Host Configuration Protocol server
Mutual DHCP message, the distribution of IP address of terminal are completed by Dynamic Host Configuration Protocol server.BRAS network elements can be by Dynamic Host Configuration Protocol server for eventually
The IP address of end distribution returns to terminal.
In addition, in order to solve the problems, such as that it is low that traditional BRAS network elements disperse the resource utilization brought of deployment, while in order to
Cut operating costs, multiple in Metropolitan Area Network (MAN) can at least being had the function of to, above-mentioned BRAS network elements are concentrated and are deployed in resource pool,
BRAS resource pools as shown in Figure 1 are formed, to realize centralized management and control to BRAS network elements.
Wherein, BRAS resource pools are configured with resource pool controller as shown in Figure 1.The resource pool controller is mainly used for pipe
Manage each BRAS network elements in the resource pool.For example, obtain the load parameter of each BRAS network elements of the resource pool, and to the resource
Send instructions under each BRAS network elements in pond etc..
Described following for convenient, be resource pool by the summary of BRAS resource pools, resource pool controller is sketched into device in order to control.
Above-mentioned certificate server, interacts with BRAS network elements, completes the authentication, authorization, accounting to user.At present, mesh
Preceding RADIUS (Remote Authentication Dial-In User Service, remote authentication dial-in user service) service
Device can support to be authenticated IPoE user, authorize and charging.
Schematically illustrating for the simply IPoE system group networks of foregoing description, in practical applications, can also basis in the networking
Increase network equipment such as actual demand etc..For example, in this application, before convergence switch, resource pool are can also configure in the networking
Put interchanger etc..Terminal is accessed by convergence switch, and the message that terminal is sent is forwarded to by the preposition interchanger of resource pool
BRAS network elements in BRAS resource pools etc..Certainly, BRAS network elements can also establish VXLAN tunnels etc. between convergence switch.This
In networking not to the IPoE systems carry out it is specifically defined.The access process of lower IPoE is described below.
IPoE authentication modes can refer to carry out access authentication by modes such as DHCP message triggerings.IPoE certifications can be again
Referred to as DHCP+OPTION extended fields are authenticated.Be used as DHCP extension OPTION fields be mainly OPTION60 and
OPTION82。
Wherein, Vendor and Service Option information is carried in OPTION60, is to initiate DHCP by user terminal to ask
The information carried when asking, BRAS access devices only need transparent transmission.Its effect in the application is for identifying user terminal
Type, so as to identify customer service type, Dynamic Host Configuration Protocol server can rely on the type of user terminal and user's industry that identify
Service type distributes different service IP address for user terminal.And OPTION82 information be by be configured with DHCP-SNOOPING or
The BRAS access devices that person is configured with DHCP-Relay are inserted in the DHCP message that terminal is sent, and are mainly used to identify user's end
The on-position at end.
Referring to Fig. 2, Fig. 2 is a kind of interaction figure of IPoE access authentications shown in one exemplary embodiment of the application.
Terminal can send DHCP-DISCOVERY messages by each BRAS network elements into BRAS resource pools in a broadcast manner, under
Face receives this by taking BRAS network element configurations have Dynamic Host Configuration Protocol server as an example, to any one BRAS network element in BRAS resource pools
Process flow after DHCP-DISCOVERY messages is introduced.
Step 201：Terminal broadcasts DHCP-DISCOVERY messages to BRAS network elements.
Step 202：BRAS network elements are inserted into OPTION extended fields；
After BRAS network elements receive the DHCP-DISCOVERY messages of the terminal broadcast, BRAS network elements can be in the DHCP-
OPTION extended fields are inserted into DISCOVERY messages, for example, insertion OPTION82.
Step 203：BRAS network elements can create IPoE sessions.
BRAS network elements can extract the user information of DHCP-DISCOVERY messages carrying, such as source MAC, User ID
Deng, then utilize the user's information etc. create IPoE sessions.
Step 204：BRAS network elements send authentication request message to certificate server.
BRAS network elements can utilize the user information that said extracted arrives, and construct authentication request message.BRAS network elements will can carry
The authentication request message for having user information is sent to certificate server.
Step 205：Certificate server can be authenticated the user information carried in the authentication request message.
Certificate server can extract the user's letter carried in the authentication request message after the authentication request message is received
Breath, is then authenticated the user's information.Authentication result generally comprises certification success and authentification failure.
Step 206：Certificate server is to BRAS network element return authentication response messages.
After being authenticated to user information, certificate server can be to BRAS network element return authentication response messages.If certification
Success, certificate server can receive message to BRAS network element return authentications, which receives that authorization message can be carried in message.If
Authentification failure, certificate server can refuse message to BRAS network elements return authentication.
Step 207：BRAS network elements renewal IPoE session status for certification by or authentification failure state.
If the certification that BRAS network elements receive certificate server return receives message, BRAS network elements can obtain certification receiving
The authorization message carried in message, while it is certification by state that will receive the corresponding IPoE session updates of message with the certification,
Authorization message is added for the IPoE sessions at the same time, and DHCP-OFFER messages are returned to terminal.If BRAS network elements receive certification
The certification corresponding IPoE session updates of refusal message are certification not by state by the certification refusal message that server returns,
And DHCP-DISCOVERY messages corresponding with the IPoE sessions are abandoned, do not return for DHCP-DISCOVERY messages
DHCP-OFFER messages.
Step 208：If certification is by the way that BRAS network elements return to DHCP-OFFER messages to terminal.
It should be noted that in certification by rear, BRAS network elements are all to return to DHCP-OFFER messages to terminal immediately.By
DHCP-DISCOVERY can be sent by each BRAS network elements into BRAS resource pools in a broadcast manner initial when in terminal
Message, so each BRAS network elements can return to the DHCP- of the DHCP-DISCOVERY messages for the terminal broadcast to the terminal
OFFER messages.Therefore, terminal can receive multiple DHCP-OFFER messages for coming from different BRAS network elements and returning.Terminal can
Selection received DHCP-OFFER messages, and being sent to the BRAS network elements for sending the DHCP-OFFER messages that the selection goes out at first
DHCP-REQUEST messages.
Assuming that the BRAS network elements selected are above-mentioned BRAS network elements, it is then followed by performing following step.
Step 209：Terminal sends DHCP-REQUEST (request) message to BRAS network elements.
Step 210：BRAS network elements are the terminal distribution IP address, and update IPoE sessions, by what is recorded in IPoE sessions
User Status is arranged to presence.
Step 211：BRAS network elements return to DHCP-ACK messages to the terminal.
For terminal after the DHCP-ACK messages are received, terminal can obtain the IP carried in DHCP-ACK (response) message
Address and relevant address parameter information.
Step 212：BRAS equipment sends charging to certificate server and starts message, starts to the user's charging.
It should be noted that when being separately configured with Dynamic Host Configuration Protocol server in above-mentioned IPoE systems, BRAS network elements are as DHCP-
During RELAY, the identifying procedure of above-mentioned IPoE is essentially identical, unlike, BRAS network elements user authentication by when by DHCP-
DISCOVERY messages are transmitted to Dynamic Host Configuration Protocol server, the DHCP reports that then both forwardings interact between terminal and Dynamic Host Configuration Protocol server
Text, such as DHCP-OFFER messages, DHCP-REQUEST messages, DHCP-ACK messages.Distribution for IP address is taken by DHCP
It is engaged in what device was completed.
It can be seen that from above-mentioned IPoE verification process since BRAS network elements can be stood after DHCP-DISCOVERY messages are received
Respond, and terminal is to establish connection with receiving the BRAS network elements indicated by the source address of DHCP-OFFER messages at first,
This allow for no matter BRAS network elements load it is multiple, can all make an immediate response DHCP-DISCOVERY messages so that terminal is received at first
To DHCP-OFFER messages may be from loading very heavy BRAS network elements so that terminal and the very heavy BRAS network elements of the load
Connection is established, and the IPoE service traffics of the follow-up terminal are forwarded by the very heavy BRAS network elements of the load, is more increased
The load of the BRAS network elements, so as to considerably increase the live load of BRAS, greatly reduces the certification of BRAS network elements and message
Forwarding ground efficiency.
In view of this, the application proposes a kind of traffic scheduling method, and BRAS resource pool controllers can detect this resources control
The load parameter of each BRAS network elements in the resource pool of device control；And according to the load parameter of BRAS network elements, determine and the BRAS
The matched DCHP message responses strategy of load parameter of network element, and the DHCP message response policy that this is determined is sent to this
BRAS network elements.
Due to controller can be in resource pool each BRAS network elements load parameter, for each BRAS network elements determine and its
Matched DHCP message response policy so that load light BRAS network elements and preferentially make an immediate response DHCP message, load the BRAS of weight
Network element is not responding to or postpones to respond DHCP message.Also, since terminal always with receiving indicated by dhcp response message at first
BRAS network elements, that is, load light BRAS network elements and establish connection, connection is established without the BRAS network element very heavy with the load, from
And realize and be forwarded to the IPoE flow schedulings of terminal to light BRAS network elements are loaded.
The traffic scheduling method provided below the application is described in detail.
Referring to Fig. 3, Fig. 3 is a kind of flow chart of traffic scheduling method shown in one exemplary embodiment of the application, the party
Method can be applied to the controller of BRAS resource pools, it may include step 301 to step 303.
Step 301：Controller can detect the load parameter of each BRAS network elements in the resource pool of this resouce controller control；
Controller can detect the load parameter of each BRAS network elements in the resource pool of this resource pool controller control in real time,
The load parameter of each BRAS network elements in the resource pool of this resource pool controller control can also be periodically detected.
Specifically, the load parameter of usual BRAS network elements includes a variety of different types of load parameters.For example, BRAS network elements
Load included by load parameter type may include：Online user number, cpu busy percentage, memory usage and uplink and downlink
Uninterrupted.Merely just load parameter type is exemplarily illustrated, it is not carried out specifically defined.
Here the load parameter of each BRAS network elements is detected, it can be understood as to included by the load parameter of each BRAS network elements
The load parameter value of a variety of load parameter types is detected.For example, can be regarded as the online user number to each BRAS network elements,
The parameter value of cpu busy percentage, memory usage and uplink and downlink uninterrupted is detected.
In an optional implementation manner, each BRAS network elements in real time can report the load parameter of oneself in resource pool
To controller, the load parameter of each BRAS network elements is detected by controller.
For example, BRAS network elements can be by the online user number of itself, cpu busy percentage, memory usage and uplink and downlink flow
The parameter value real-time report of size is detected line number of users, cpu busy percentage, the memory of each BRAS network elements by controller to controller
The parameter value of occupancy and uplink and downlink uninterrupted.
In another optional implementation, each BRAS network elements in resource pool can be periodically to controller report sheet
The load parameter of equipment.Or controller periodically can issue load parameter to each BRAS network elements and report instruction, each BRAS nets
The load parameter of this equipment is reported to controller by member after receiving the load parameter and reporting instruction.
Specifically, average value of each load parameter value within this cycle can be calculated respectively in this week end of term, BRAS network elements,
Then the average value for each load parameter value being calculated is reported to controller as load parameter.Certainly, BRAS network elements are also
Each load parameter value at all this moment in the end of term can be reported to controller.Here, without specifically defined.
The above-mentioned exemplary illustration that each BRAS network elements method is simply detected to controller, does not carry out it specifically defined.
Step 302：For the load parameter of target BRAS network elements, the DHCP message response of the target BRAS network elements is determined
Strategy；The DHCP message response policy includes：Response delay duration or the instruction being not responding to.
Wherein, above-mentioned target BRAS network elements are any BRAS network elements in the resource pool.
In the embodiment of the present application, every kind of load parameter type is all corresponding with first threshold and second threshold, and first
Threshold value is less than second threshold.BRAS network elements can safeguard the correspondence of all kinds of load parameter types, first threshold and second threshold.
For example, it is assumed that load parameter type includes online user number, cpu busy percentage, memory usage and uplink and downlink stream
Measure size.The correspondence of all kinds of load parameter types, first threshold and second threshold can be as shown in table 1.Certainly, it is also corresponding
Relation can also use other Method of Data Organization, and form is one of which, here not to the data organization side of the correspondence
Formula is especially limited.
| Load parameter type | Online user number | Cpu busy percentage | Memory usage | Uplink and downlink uninterrupted |
| First threshold | 6000 | 80% | 80% | 6G |
| Second threshold | 8000 | 90% | 90% | 9G |
Table 1
In addition, above-mentioned DHCP message can refer to DHCP-DISCOVERY messages that user terminal is sent etc..Certainly, also may be used
To refer to other DHCP messages in dhcp process, here without specifically defined.
Above-mentioned response DHCP message, it can be understood as in user authentication by rear, BRAS network elements are sent to user terminal
DHCP-OFFER messages.It is of course also possible to being interpreted as BRAS network elements is receiving the DHCP-DISCOVERY messages of terminal transmission
Afterwards, it is authenticated, and in certification by rear, DHCP-OFFER messages is returned to terminal.
In the embodiment of the present application, in order to enable loading light BRAS network elements first sends out DHCP-OFFER messages, gone back on BRAS
It is configured with different DHCP message response policies.Load parameter corresponding to each DHCP message response policy is different.
DHCP message response policy 1：Zero will be arranged to for the response delay duration of DHCP message.
The 1 corresponding condition of DHCP message response policy is：M included by the load parameter of above-mentioned target BRAS network elements
Load parameter value is respectively less than or equal to the corresponding first threshold of load parameter type belonging to M load parameter value difference.
Wherein, the load parameter of BRAS network elements is made of M different types of load parameter values.M is the integer more than 0.
For example, it is assumed that the load parameter type of target BRAS network elements includes online user number, cpu busy percentage, EMS memory occupation
Rate and uplink and downlink uninterrupted this 4 load parameter values, at this time M=4.
If this 4 load parameter values are respectively less than the corresponding first threshold of each load parameter value (for example, the ginseng of online user number
Numerical value is less than the corresponding first threshold of online user number, and the parameter value of cpu busy percentage is less than corresponding first threshold of cpu busy percentage
Value, the parameter value of memory usage are less than the corresponding first threshold of memory usage, and the parameter value of uplink and downlink uninterrupted is less than
The corresponding first threshold of uplink and downlink uninterrupted), controller can determine that the DHCP message response policy of target BRAS network elements is
Zero will be arranged to for the response delay duration of DHCP message.
DHCP message response policy 2：It will be arranged to specify duration for the response delay duration of DHCP message.
The 1 corresponding condition of DHCP message response policy is：N number of load included by the load parameter of target BRAS network elements
Parameter value is respectively more than the corresponding first threshold of load parameter type belonging to N number of load parameter value, and the BRAS nets
M load parameter value included by the load parameter of member is respectively joined no more than the load belonging to M load parameter value difference
The corresponding second threshold of several classes of types.Wherein, the load parameter of BRAS network elements is made of M different types of load parameter values.M and
N is the integer more than 0.N is less than or equal to M.
For example, it is assumed that the load parameter of target BRAS network elements include online user number, cpu busy percentage, memory usage with
And uplink and downlink uninterrupted this 4 load parameter values, M=4 at this time.
At least one load parameter value is more than the load parameter value pair in this 4 load parameter values of target BRAS network elements
(such as the parameter value of online user number is more than the corresponding first threshold of online user number, the ginseng of cpu busy percentage to the first threshold answered
Numerical value is more than the corresponding first threshold of the cpu busy percentage, at this time N=2), and this 4 load parameter values are respectively less than each load ginseng
The corresponding second threshold of numerical value is (for example, the parameter value of online user number is less than the corresponding second threshold of online user number, CPU profits
It is less than the corresponding second threshold of cpu busy percentage with the parameter value of rate, the parameter value of memory usage is corresponded to less than memory usage
Second threshold, the parameter value of uplink and downlink uninterrupted is less than the corresponding second threshold of uplink and downlink uninterrupted).Then this time control
Device processed can determine that the DHCP message response policy of target BRAS network elements is that will be set for the response delay duration of DHCP message
To specify duration.
DHCP message response policy 3：It is not responding to DHCP message.
The 3 corresponding condition of DHCP message response policy is：X load included by the load parameter of target BRAS network elements
Parameter value is all higher than the corresponding second threshold of load parameter type belonging to X load parameter value difference.The X is more than 0
Integer, X are less than or equal to M；
For example, it is assumed that the load parameter of BRAS network elements include online user number, cpu busy percentage, memory usage and it is upper,
This 4 load parameter values of the parameter value of downlink traffic size, at this time M=4.
4 load parameter value at least one load parameters of BRAS network elements are more than corresponding second threshold of the load parameter value
(for example, the parameter value of online user number is more than the corresponding second threshold of online user number, the parameter value of cpu busy percentage is more than value
The corresponding second threshold of cpu busy percentage, at this time X=2) when, controller can determine that the DHCP message response of target BRAS network elements
Strategy is to be not responding to DHCP message.
Below by taking above-mentioned DHCP message is DHCP-DISCOVERY messages as an example, above-mentioned traffic scheduling method is carried out detailed
Ground explanation.
1) when controller detects that N number of load parameter value included by the load parameter of target BRAS network elements is respectively more than
The corresponding first threshold of load parameter type belonging to N number of load parameter value difference, and the load parameter institute of the BRAS network elements
Including M load parameter value respectively no more than M load parameter value affiliated load parameter type corresponding the respectively
During two threshold values, controller can determine that the corresponding DHCP message response policy of target BRAS network elements is：By for DHCP message
Response delay duration is arranged to specify duration.
Wherein, this specifies duration, can be preset by developer.Alternatively, this specify duration also can by controller according to
The load parameter of the BRAS network elements is calculated.
Specifically, controller can join according to M load parameter value included by the BRAS network element load parameters and each load
The corresponding coefficient of numerical value, calculates the grade of load value of the BRAS network elements.
The pre-configured correspondence of grade of load value and duration, the BRAS network elements are calculated in controller in controller
After grade of load value, controller can the grade of load value that calculate as keyword, in the pre-configured grade of load value
In the correspondence of duration, duration corresponding with the keyword is searched, and using the duration as specified duration.
Certainly, specified duration, merely just a kind of example to specifying duration calculation can be also calculated using other methods
Property explanation, it is not carried out specifically defined.
2) when controller detects that X load parameter value included by the load parameter of target BRAS network elements is all higher than the X
A load parameter value respectively belonging to load parameter type corresponding second threshold when, the controller can determine that target BRAS nets
The DHCP message response policy of member is to be not responding to DHCP message.
3) when controller detects that the M load parameter value that the load parameter of target BRAS network elements is included is respectively less than the M
The corresponding first threshold of a load parameter value, then controller determine that the DHCP message response policy of target BRAS network elements is
Zero will be arranged to for the response delay duration of DHCP message.
For example, it is assumed that resource pool includes 3 BRAS network elements, it is respectively BRAS network elements 1, BRAS network elements 2 and BRAS network elements
3。
Each load parameter value of BRAS network elements 1 is respectively：Online user number 7000, cpu busy percentage 85%, memory usage
75% and uplink and downlink uninterrupted 7G.
Each load parameter value of BRAS network elements 2 is respectively：Online user number 8500, cpu busy percentage 85%, memory usage
75% and uplink and downlink uninterrupted 7G.
Each load parameter value of BRAS network elements 3 is respectively：Online user number 5000, cpu busy percentage 70%, memory usage
75% and uplink and downlink uninterrupted 5G.
The correspondence of each load parameter type, first threshold and the second threshold that are recorded in controller is still as shown in table 1.
By the detection to BRAS network elements 1, controller detects that the parameter value 7000 of the online user number of BRAS network elements 1 is big
The corresponding first threshold 6000 of online user number in table 1, and it is less than second threshold 8000；The parameter value of cpu busy percentage
85% cpu busy percentage being more than in table 1 corresponds to first threshold 80%, and is less than second threshold 90%；The parameter of memory usage
Value 75% is less than the corresponding first threshold 75% of memory usage in table 1, and the parameter value of uplink and downlink uninterrupted is more than table 1
In the corresponding first threshold 6G of uplink and downlink uninterrupted and be less than second threshold 9G.
Due to controller detect the CPU usage that the load parameter of BRAS network elements 1 includes, memory usage and it is upper,
The parameter value of downlink traffic size is all higher than first threshold (the i.e. parameter value of CPU usage corresponding with each load parameter type
First threshold corresponding more than the CPU usage, the parameter value of memory usage are more than corresponding first threshold of the memory usage
Value, the parameter value of uplink and downlink uninterrupted are more than the corresponding first threshold of uplink and downlink uninterrupted), and all loads
Parameter value is both less than load parameter type corresponding second threshold (the i.e. parameter value of online user number belonging to the load parameter value
Second threshold corresponding less than online user number, the parameter value of cpu busy percentage is less than the corresponding second threshold of cpu busy percentage, interior
The parameter value for depositing occupancy is less than the corresponding second threshold of memory usage, and the parameter value of uplink and downlink uninterrupted is less than upper and lower
The corresponding second threshold of row uninterrupted), controller can determine that the DHCP message response policy of BRAS network elements 1 is to be directed to
The response delay duration of DHCP-DISCOVERY messages is arranged to specify duration.
By the detection to BRAS network elements 2, controller detects that the parameter value 8500 of the online user number of BRAS network elements 2 is big
The corresponding second threshold 8000 of online user number in table 1；The CPU that the parameter value 85% of cpu busy percentage is more than in table 1 is utilized
Rate corresponds to first threshold 80%, and is less than second threshold 90%；The memory that the parameter value 75% of memory usage is less than in table 1 accounts for
With the corresponding first threshold 75% of rate, the uplink and downlink uninterrupted that the parameter value of uplink and downlink uninterrupted is more than in table 1 corresponds to
First threshold 6G and be less than second threshold 9G.
Since controller detects that the CPU usage that the load parameter of BRAS network elements 2 includes is corresponded to more than the CPU usage
Second threshold, controller can determine that the DHCP message response policies of BRAS network elements 2 to be not responding to DHCP-DISCOVERY messages.
By the detection to BRAS network elements 3, controller detects that the parameter value 5000 of the online user number of BRAS network elements 3 is small
The corresponding first threshold 6000 of online user number in table 1；The CPU that the parameter value 70% of cpu busy percentage is less than in table 1 is utilized
Rate corresponds to first threshold 80%；The parameter value 75% of memory usage is less than the corresponding first threshold of memory usage in table 1
75%；The parameter value 5G of uplink and downlink uninterrupted is less than the corresponding first threshold 6G of uplink and downlink uninterrupted in table 1.
Since controller detects the CPU usage that the load parameter of BRAS network elements 3 includes, memory usage, online uses
Amount and uplink and downlink uninterrupted are respectively less than corresponding first threshold, and (i.e. the parameter value of online user number is less than online
The corresponding first threshold of number of users, the parameter value of cpu busy percentage are less than the corresponding first threshold of cpu busy percentage, memory usage
Parameter value be less than the corresponding first threshold of memory usage, it is big that the parameter value of uplink and downlink uninterrupted is less than uplink and downlink flow
Small corresponding first threshold), controller can determine that the DHCP message response policy of BRAS network elements 3 is that will be directed to DHCP-
The response delay duration of DISCOVERY messages is arranged to zero.
Step 303：The DHCP message response policy determined is sent to the target BRAS network elements.
In the embodiment of the present application, after the DHCP message response policy of target BRAS network elements is determined, controller can
The DHCP message response policy determined directly is issued to BRAS network elements by interfaces such as NETCONF or restful api.
Certainly, the record of the DHCP message response policy that each BRAS network elements are current in resource pool can be safeguarded on controller.
After the DHCP message response policy for determining target BRAS network elements, controller can obtain target BRAS network elements from the record
Current DHCP message response policy.
Whether controller can detect current DHCP message response policy identical with the DHCP message response policy determined, such as
Fruit controller detects that current DHCP message response policy is differed with the DHCP message response policy determined, then passes through
The interfaces such as NETCONF or restful api, the DHCP message determined is sent to the target BRAS network elements and responds plan
Slightly.
For example, it is assumed that controller obtains the current DHCP message response of the target BRAS network elements got from above-mentioned record
Strategy is that response delay duration is zero, that is, make an immediate response DHCP-DISCOVERY messages, and the target BRAS network elements determined
For DHCP message response policy to be not responding to, controller determines the current DHCP message response policy of target BRAS network elements with determining
DHCP message response policy it is different, then the DHCP message response policy determined can be sent to target BRAS network elements.Mesh
BRAS network elements are marked after the DHCP message response policy is received, DHCP message response modification can be not responding to DHCP-
DISCOVERY。
For another example assume that controller obtains the current DHCP message of the target BRAS network elements got from above-mentioned record and rings
Should strategy to be not responding to, and the DHCP message response policy for the target BRAS network elements determined is to set the response delay duration to be
Zero, controller determines the current DHCP message response policy of target BRAS network elements and the DHCP message response policy determined not
Together, then the DHCP message response policy determined can be sent to target BRAS network elements.Target BRAS network elements are receiving this
After DHCP message response policy, the response delay duration of DHCP message can be arranged to zero, and receiving DHCP-
Make an immediate response the DHCP-DISCOVERY messages after DISCOVERY messages.
The load parameter of each BRAS network elements in resource pool is can detect due to controller, when the load excessive of BRAS network elements
When, controller can control the BRAS network elements of the load excessive to postpone response DHCP-DISCOVERY messages or be not responding to DHCP-
DISCOVERY messages, when the load of BRAS network elements is light, control controllable BRAS network elements to make an immediate response DHCP-DISCOVERY reports
Text so that terminal receives at first loads the DHCP-OFFER messages that light BRAS network elements are sent, and the BRAS net light with the load
Member establishes connection, it is achieved thereby that the IPoE flow schedulings of terminal are forwarded to light BRAS network elements are loaded.
Referring to Fig. 4, the application also provides a kind of hardware architecture diagram of resource pool controller, which includes：
Communication interface 401, processor 402, memory 403 and bus 404；Wherein, communication interface 401, processor 402 and memory
403 complete mutual communication by bus 404.
Wherein, communication interface 401, for communicating with BRAS network elements.Processor 402 can be a CPU, memory 403
It can be nonvolatile memory (non-volatile memory), and the logic of flow scheduling is stored with memory 403
Instruction, processor 402 can perform the logical order of the flow scheduling stored in memory 403, to realize stream shown in above-mentioned Fig. 3
The function of flow scheduling in journey.
So far, the hardware configuration description shown in Fig. 4 is completed.
Fig. 5 is refer to, Fig. 5 is a kind of block diagram of flow scheduling device shown in one exemplary embodiment of the application.The dress
Put and can be applied to resouce controller, it may include unit as follows.
Detection unit 501, each BAS Broadband Access Server in resource pool for detecting the control of this resource pool controller
The load parameter of BRAS network elements；
Determination unit 502, for the load parameter for target BRAS network elements, determines the dynamic of the target BRAS network elements
Host configuration DHCP message response policy；The DHCP message response policy includes：Response delay duration is not responding to
Instruction；The target BRAS network elements are any BRAS network elements in the resource pool；
Transmitting element 503, for sending the DHCP message response policy determined to the target BRAS network elements.
Optionally, the load parameter includes M different types of load parameter values；M is the integer more than 0；
The determination unit 502, if specifically for M load ginseng included by the load parameter of the target BRAS network elements
Numerical value be respectively less than or equal to M load parameter value respectively belonging to load parameter type corresponding first threshold when, it is definite
The DHCP message response policy of the target BRAS network elements is that will be arranged to zero for the response delay duration of DHCP message；If institute
State N number of load parameter value included by the load parameter of target BRAS network elements and be respectively more than N number of load parameter value difference institute
The corresponding first threshold of load parameter type of category, and M load parameter included by the load parameter of target BRAS network elements
Value respectively no more than M load parameter value respectively belonging to load parameter type corresponding second threshold when, determine described in
The DHCP message response policy of target BRAS network elements is to be arranged to specify duration for the response delay duration of DHCP message；Its
In, N is less than or equal to M；N is the integer more than 0；The first threshold is less than second threshold；If the target BRAS network elements is negative
Carry X load parameter value included by parameter be all higher than X load parameter value distinguish belonging to load parameter type corresponding the
Two threshold values, it is determined that the DHCP message response policy of the target BRAS network elements is to be not responding to DHCP message；The X is more than 0
Integer, X is less than or equal to M.
Optionally, the transmitting element 503, rings specifically for the current DHCP message for detecting the target BRAS network elements
Should tactful whether identical with DHCP message response policy that is determining；If differing, send and determine to the target BRAS network elements
The DHCP message response policy gone out.
Optionally, the determination unit 502 is when determining the specified duration, specifically for according to the target BRAS nets
M load parameter value and the corresponding coefficient of default each load parameter value included by the load parameter of member, described in calculating
The grade of load value of BRAS network elements；Using the grade of load value that calculates as keyword, default grade of load value with
In the correspondence of duration, duration corresponding with the keyword is searched, as the specified duration.
Optionally, the load parameter type includes at least：Online user number, cpu busy percentage, memory usage and
Uplink and downlink uninterrupted.
The function of unit and effect realizes that process specifically refers to step is corresponded in the above method in above device
Realize process, details are not described herein.
For device embodiment, since it corresponds essentially to embodiment of the method, so related part is real referring to method
Apply the part explanation of example.Device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation may or may not be physically separate, can be as the component that unit is shown or can also
It is not physical location, you can with positioned at a place, or can also be distributed in multiple network unit.Can be according to reality
Need to select some or all of module therein to realize the purpose of application scheme.Those of ordinary skill in the art are not paying
In the case of going out creative work, you can to understand and implement.
The foregoing is merely the preferred embodiment of the application, not limiting the application, all essences in the application
God and any modification, equivalent substitution, improvement and etc. within principle, done, should be included within the scope of the application protection.
Claims (10)
- A kind of 1. traffic scheduling method, it is characterised in that the method is applied to resource pool controller, including：Detect the load parameter of each BAS Broadband Access Server BRAS network elements in the resource pool of this resource pool controller control；For the load parameter of target BRAS network elements, the dynamic host configuration protocol DHCP message of the target BRAS network elements is determined Response policy；The DHCP message response policy includes：Response delay duration or the instruction being not responding to；The target BRAS network elements For any BRAS network elements in the resource pool；The DHCP message response policy determined is sent to the target BRAS network elements.
- 2. according to the method described in claim 1, it is characterized in that, the load parameter includes M different types of load ginsengs Numerical value；M is the integer more than 0；The load parameter for target BRAS network elements, determines the dynamic host configuration protocol DHCP of the target BRAS network elements Message response strategy, including：If M load parameter value included by the load parameter of the target BRAS network elements is respectively less than or equal to this M load Parameter value respectively belonging to load parameter type corresponding first threshold when, determine that the DHCP message of the target BRAS network elements is rung Should tactful be that will be arranged to zero for the response delay duration of DHCP message；If N number of load parameter value included by the load parameter of the target BRAS network elements is respectively more than N number of load parameter The corresponding first threshold of load parameter type belonging to value difference, and M included by the load parameter of target BRAS network elements Load parameter value respectively no more than M load parameter value respectively affiliated load parameter type corresponding second threshold when, The DHCP message response policy for determining the target BRAS network elements is that will be arranged to refer to for the response delay duration of DHCP message Timing is long；Wherein, N is less than or equal to M；N is the integer more than 0；The first threshold is less than second threshold；If X load parameter value included by the load parameter of the target BRAS network elements is all higher than the X load parameter value point The corresponding second threshold of not affiliated load parameter type, it is determined that the DHCP message response policy of the target BRAS network elements is not Respond DHCP message；The X is the integer more than 0, and X is less than or equal to M.
- 3. according to the method described in claim 1, it is characterized in that, described send the institute determined to the target BRAS network elements DHCP message response policy is stated, including：Detect the current DHCP message response policy of the target BRAS network elements is with the DHCP message response policy determined It is no identical；If differing, the DHCP message response policy determined is sent to the target BRAS network elements.
- 4. according to the method described in claim 2, it is characterized in that, the specified duration is determined as follows：M load parameter value and default each load parameter according to included by the load parameter of the target BRAS network elements It is worth corresponding coefficient, calculates the grade of load value of the BRAS network elements；Using the grade of load value that calculates as keyword, in the correspondence of default grade of load value and duration, Duration corresponding with the keyword is searched, as the specified duration.
- 5. the method according to any claim in claim 2, it is characterised in that the load parameter type is at least wrapped Include：Online user number, cpu busy percentage, memory usage and uplink and downlink uninterrupted.
- A kind of 6. flow scheduling device, it is characterised in that described device is applied to resource pool controller, including：Detection unit, each BAS Broadband Access Server BRAS network elements in resource pool for detecting the control of this resource pool controller Load parameter；Determination unit, for the load parameter for target BRAS network elements, determines that the DynamicHost of the target BRAS network elements is matched somebody with somebody Put protocol DHCP message response strategy；The DHCP message response policy includes：Response delay duration or the instruction being not responding to；Institute Target BRAS network elements are stated as any BRAS network elements in the resource pool；Transmitting element, for sending the DHCP message response policy determined to the target BRAS network elements.
- 7. device according to claim 6, it is characterised in that the load parameter includes M different types of load ginsengs Numerical value；M is the integer more than 0；The determination unit, if equal specifically for M load parameter value included by the load parameter of the target BRAS network elements When being respectively smaller than first threshold corresponding equal to the M affiliated load parameter type of load parameter value difference, the mesh is determined The DHCP message response policy of mark BRAS network elements is that will be arranged to zero for the response delay duration of DHCP message；If the target N number of load parameter value included by the load parameter of BRAS network elements is respectively more than negative belonging to N number of load parameter value difference The corresponding first threshold of parameter type is carried, and M load parameter value included by the load parameter of target BRAS network elements is divided equally Not Bu great Yu M load parameter value respectively belonging to load parameter type corresponding second threshold when, determine the target The DHCP message response policy of BRAS network elements is to be arranged to specify duration for the response delay duration of DHCP message；Wherein, N Less than or equal to M；N is the integer more than 0；The first threshold is less than second threshold；If the load ginseng of the target BRAS network elements X included load parameter value of number is all higher than corresponding second threshold of load parameter type belonging to X load parameter value difference Value, it is determined that the DHCP message response policy of the target BRAS network elements is to be not responding to DHCP message；The X is whole more than 0 Number, X are less than or equal to M.
- 8. device according to claim 6, it is characterised in that the transmitting element, specifically for detecting the target Whether the current DHCP message response policy of BRAS network elements and the DHCP message response policy determined are identical；If differing, The DHCP message response policy determined is sent to the target BRAS network elements.
- 9. device according to claim 7, it is characterised in that the determination unit is when determining the specified duration, tool Body is used for M load parameter value and default each load ginseng according to included by the load parameter of the target BRAS network elements The corresponding coefficient of numerical value, calculates the grade of load value of the BRAS network elements；The grade of load value to calculate is used as key Word, in the correspondence of default grade of load value and duration, searches duration corresponding with the keyword, is specified as described Duration.
- 10. device according to claim 7, it is characterised in that the load parameter type includes at least：Online user Number, cpu busy percentage, memory usage and uplink and downlink uninterrupted.
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| CN110933182A (en) * | 2019-12-12 | 2020-03-27 | 新华三大数据技术有限公司 | Load sharing method, device and system |
| WO2022268032A1 (en) * | 2021-06-22 | 2022-12-29 | 华为云计算技术有限公司 | Video stream scheduling system and related product |
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