CN1842019A - Dynamic control method for service bandwidth - Google Patents
Dynamic control method for service bandwidth Download PDFInfo
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- CN1842019A CN1842019A CN 200510033885 CN200510033885A CN1842019A CN 1842019 A CN1842019 A CN 1842019A CN 200510033885 CN200510033885 CN 200510033885 CN 200510033885 A CN200510033885 A CN 200510033885A CN 1842019 A CN1842019 A CN 1842019A
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Abstract
The invention relates to a business band wide dynamic control method which identifies the business type of the user on the switch device, identifies the data business and the band wide business of the user; it separately identifies the dynamic band wide of the data business and the band wide accession business; when each type business band wide of user or the total business band wide over the allowance threshold value, it controls the band wide of the user. When the business band wide of user or the total business band wide dose not over the allowance threshold value, it can dynamic adjust the band wide allowance of the data business and the accession business.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of business band width dynamic control method.
Background technology
Development along with various broad band value-added services such as online live, tele-medicine, Web TV, long-distance education, real-time video meetings, terminal use's bandwidth requirement is increasing, can save the convergence-level network bandwidth in a large number though adopt multicasting technology, reduce offered load, but the bandwidth requirement of access layer network equipment does not reduce, along with the development of various broad band value-added services, the bandwidth requirement of access layer network equipment is more and more higher on the contrary.So how rationally satisfy user bandwidth, become a bottleneck of access layer network equipment gradually.
CAR (Committed access rate, be Committed Access Rate) be a kind of bandwidth management techniques that is used in the control IP message transmissions speed during the network congestion, can carry out speed limit to burst flow, and can use IP precedence (IP Precedence) and QoS (quality-of-service) mark to distinguish the IP message.Adopt CAR to finish code stream size control on the port according to Mean Speed and peak rate, when the real-time code stream Mean Speed on the port or peak rate surpassed given numerical value, directly dropping packets did not need to notify management equipment.
The major defect that prior art adopts CAR to carry out bandwidth control is:
1, CAR can not distinguish user business type, i.e. data service (Internet data), value-added service (as the Internet Protocol Television business);
2, can not be in actual code flow rate notice management equipment during greater than user's actual bandwidth, service bandwidth that more can not the real time altering user distributes, can not the dynamic adjusting data business, the bandwidth of value-added service;
To a user, his amount of bandwidth is restricted, if can not adjust user's miscellaneous service bandwidth, for example when user's Internet data occupied bandwidth was excessive, mosaic will appear in the IPTV program that the user watches, effect is watched in influence; When the IPTV program occupied bandwidth of perhaps watching was excessive, then networking speed can be very slow.
Therefore 3, when the CAR dropping packets, management equipment can not known packet loss, effective leading subscriber bandwidth.
Summary of the invention
Technical problem to be solved by this invention is: when overcoming prior art and adopting CAR to carry out bandwidth control, can not distinguish user business type, can not dynamically adjust the shortcoming of service bandwidth, a kind of business band width dynamic control method is provided, user business type is discerned, and each professional bandwidth is dynamically controlled.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
This business band width dynamic control method may further comprise the steps:
A, on access device, user business type is distinguished identification user's data business and broad band value-added service;
B, the dynamic bandwidth of described data service and broad band value-added service is discerned respectively;
C, when all types of service bandwidth of user or total service bandwidth surpass default permission threshold value, user's bandwidth is controlled.
In the described steps A, be two layers of forwarding or three layers are transmitted according to service message, or discern the type of service of message according to media access control address, VLAN, IP message tunneling type.
The allocated bandwidth of dynamic adjusting data business, value-added service satisfies user's bandwidth requirement.
Among the described step B, the control board of access device regularly reads the cell number on the user port, thereby calculates user's dynamic bandwidth; Or the business board of the access device cell number on the report of user port regularly, thereby calculate user's dynamic bandwidth; Or bandwidth template of the control board of access device configuration by the business board computation bandwidth, reports control board, thereby obtains user's dynamic bandwidth to business board when reaching certain threshold interval of bandwidth template.
Among the described step C, adopt following method that bandwidth is controlled alone or in combination:
A, transmission alarm are to management equipment;
B, do not allow the user to obtain this service;
All services of c, pressure end user;
D, the message that surpasses the given bandwidth of service directly abandon;
E, user's business is distributed priority in advance, the service message of low priority is abandoned;
F, the user's data service bandwidth is distributed to the value-added service bandwidth, preferentially guarantee value-added service; Perhaps, give the data service bandwidth user's value-added service allocated bandwidth, preferentially guarantee data service;
G, distributing to this user with other user's of plate idle bandwidth, obtain service to guarantee this user; Perhaps, distributing to this user, obtain service to guarantee this user with other user's of frame idle bandwidth.
Beneficial effect of the present invention is: the present invention distinguishes with broad band value-added service user's data is professional, and energy is the leading subscriber bandwidth dynamically, and the operating position of dynamical feedback user bandwidth realizes user's dynamic bandwidth control.When the total bandwidth of user data service, value-added service requires to surpass threshold value, can adopt and send alarm to management equipment, dropping packets, the service of pressure end user or do not satisfy action such as user's service, and these actions can be disposed, may be used alone, can also be used in combination.When the total bandwidth of user data service, value-added service requires to surpass threshold value, can the dynamic adjusting data business, the allocated bandwidth of value-added service, to satisfy user's bandwidth requirement to greatest extent.
Utilize the present invention, can make the big user of bandwidth demand obtain better service, user's cost saving that bandwidth demand is little.Can also effectively prevent user's malicious attack by the maximum bandwidth of limited subscriber, and owing to can control the bandwidth of value-added service, so the quality of user's value-added service can access effective assurance.
Description of drawings
Fig. 1 is an access device operation principle schematic diagram.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
Be illustrated in figure 1 as access device operation principle schematic diagram, user terminal is connected with user port on the access device business board by RTU (remote-terminal unit), control board on the access device is connected with video source by the ATM/IP network, and be connected with management equipment (as network management system), realize data service and Internet Protocol Television business simultaneously.Among the figure:
A is the interface that business board arrives user RTU;
B is the interface of access device uplink port to video source;
C is the interface that access device arrives network management system.
The invention provides a kind of business band width dynamic control method, realize dynamic control professional to data and the broad band value-added service bandwidth.Specifically may further comprise the steps:
1) distinguish user business type:
There is the branch of multicast MAC Address and unicast mac address MAC (media interviews control) address; Different business also can be transmitted according to specific VLAN; The protocol encapsulation type of IP message can differentiated service be unicast service or multicast service also.
Control board is two layers of forwarding or three layers are transmitted according to service message, or discerns the type of service of message and then identification user's data business and broad band value-added service according to MAC Address, VLAN, IP message tunneling type.
For example: the target MAC (Media Access Control) address that the Internet service message carries is user's a terminal MAC Address, this address is unique, and the target MAC (Media Access Control) address that the service message of Broadband TV (BTV) carries is 01-00-5E-xx-xx-xx, therefore the service message that with 01-00-5E is the target MAC (Media Access Control) address of beginning then is user's a Broadband TV service message, is not then to be the user's data service message.
2) user's dynamic bandwidth is discerned:
Dynamic bandwidth is received the bit number exactly in the regular hour, real-time traffic just, and unit is bit/s.How to obtain user's dynamic bandwidth, exactly bit number by receiving in the certain hour statistics.For example read the cell number x that has received on the user port earlier, start a timer, duration is t, behind this timer expiry, reads the cell number y on the user port again, thereby draws user's dynamic bandwidth b:
Bit number/t that b=(y-x) * cell comprises
This statistics can be carried out on master control borad, also can carry out at business board, specifically can adopt following method:
A, control board regularly read the cell number on the user port, thereby calculate user's dynamic bandwidth.
B, business board be the cell number on the report of user port regularly, thereby calculates user's dynamic bandwidth.
C, bandwidth template of control board configuration are given business board, by the business board computation bandwidth, report control board when reaching certain threshold interval of template, thereby obtain user's dynamic bandwidth.
3) can distinguish user's data service dynamic bandwidth and value-added service dynamic bandwidth according to the method for front, when user's dynamic bandwidth surpassed the permission threshold value, management equipment can be controlled user's dynamic bandwidth.For example can take following measure, can manage with the dynamic bandwidth that guarantees the user:
A, transmission alarm are to management equipment (network management system).
B, do not allow the user to obtain this service.
All services of c, pressure end user.
D, the message that surpasses the given bandwidth of service directly abandon.
E, user's business is distributed priority in advance, the service message of low priority is abandoned.
F, the user's data service bandwidth is distributed to the value-added service bandwidth, preferentially guarantee value-added service; Perhaps, give the data service bandwidth user's value-added service allocated bandwidth, preferentially guarantee data service.
G, distributing to this user with other user's of plate idle bandwidth, obtain service to guarantee this user; Perhaps, distributing to this user, obtain service to guarantee this user with other user's of frame idle bandwidth.
These measures are may be used alone, can also be used in combination.
When the total bandwidth of user data service, value-added service requires to surpass threshold value, can adopt and send alarm to management equipment, dropping packets, the service of pressure end user or do not satisfy action such as user's service, and these actions can be disposed, may be used alone, can also be used in combination.When the total bandwidth of user data service, value-added service requires to surpass threshold value, can the dynamic adjusting data business, the allocated bandwidth of value-added service, to satisfy user's bandwidth requirement to greatest extent.
The present invention distinguishes with broad band value-added service user's data is professional, and energy is the leading subscriber bandwidth dynamically, and the operating position of dynamical feedback user bandwidth realizes user's dynamic bandwidth control.Can make the big user of bandwidth demand obtain better service, user's cost saving that bandwidth demand is little.The present invention is owing to the bandwidth that can control value-added service, so the quality of user's value-added service can access effective assurance.For example adopt ADSL2+, a user's bandwidth maximum can reach 25M, but the bandwidth of service board itself is limited, and it is unappeasable all distributing 25M for all users, so just can distribute to the user who needs to limited resources, such as VIP user.
The certain user can utilize his terminal up, and a large amount of junk datas is uploaded on the network, causes other user normally not visit.Utilize the present invention, can effectively prevent user's malicious attack by the maximum bandwidth of limited subscriber, even the user has this intention, its harmfulness also is limited.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalent structure that all utilizations specification of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (7)
1, a kind of business band width dynamic control method is characterized in that, may further comprise the steps:
A, on access device, user business type is distinguished identification user's data business and broad band value-added service;
B, the dynamic bandwidth of described data service and broad band value-added service is discerned respectively;
C, when all types of service bandwidth of user or total service bandwidth surpass default permission threshold value, user's bandwidth is controlled.
2, business band width dynamic control method according to claim 1, it is characterized in that: in the described steps A, according to service message is two layers of forwarding or three layers are transmitted, or discerns the type of service of message according to media access control address, VLAN, IP message tunneling type.
3, business band width dynamic control method according to claim 1 and 2 is characterized in that: the allocated bandwidth of dynamic adjusting data business, value-added service, satisfy user's bandwidth requirement.
4, business band width dynamic control method according to claim 3 is characterized in that: among the described step B, the control board of access device regularly reads the cell number on the user port, thereby calculates user's dynamic bandwidth.
5, business band width dynamic control method according to claim 3 is characterized in that: among the described step B, the business board of access device is the cell number on the report of user port regularly, thereby calculates user's dynamic bandwidth.
6, business band width dynamic control method according to claim 3, it is characterized in that: among the described step B, bandwidth template of control board configuration of access device is given business board, by the business board computation bandwidth, when reaching certain threshold interval of bandwidth template, report control board, thereby obtain user's dynamic bandwidth.
7, business band width dynamic control method according to claim 3 is characterized in that: among the described step C, adopt following method that bandwidth is controlled alone or in combination:
A, transmission alarm are to management equipment;
B, do not allow the user to obtain this service;
All services of c, pressure end user;
D, the message that surpasses the given bandwidth of service directly abandon;
E, user's business is distributed priority in advance, the service message of low priority is abandoned;
F, the user's data service bandwidth is distributed to the value-added service bandwidth, preferentially guarantee value-added service; Perhaps, give the data service bandwidth user's value-added service allocated bandwidth, preferentially guarantee data service;
G, distributing to this user with other user's of plate idle bandwidth, obtain service to guarantee this user; Perhaps, distributing to this user, obtain service to guarantee this user with other user's of frame idle bandwidth.
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| CN 200510033885 CN1842019A (en) | 2005-03-28 | 2005-03-28 | Dynamic control method for service bandwidth |
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| CN 200510033885 CN1842019A (en) | 2005-03-28 | 2005-03-28 | Dynamic control method for service bandwidth |
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| CN2008100805113A Division CN101232459B (en) | 2005-03-28 | 2005-03-28 | Business band width dynamic control method and device |
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