CN109787921A - CDN bandwidth scheduling method, acquisition and dispatch server and storage medium - Google Patents
CDN bandwidth scheduling method, acquisition and dispatch server and storage medium Download PDFInfo
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Abstract
The present embodiments relate to Internet technical field, a kind of CDN bandwidth scheduling method, acquisition and dispatch server and storage medium are disclosed.This method comprises: obtaining the real-time total bandwidth of CDN；Wherein, CDN is implemented in default network and backup network, and real-time total bandwidth includes: the real-time bandwidth of default network and the real-time bandwidth of backup network；New bandwidth allocation ratio is calculated according to the principle of real-time total bandwidth, the service bandwidth of default network and the preferential bandwidth using default network；Wherein, bandwidth allocation ratio is used to determine allocation proportion of the bandwidth of CDN on default network and backup network；The fringe node of new bandwidth allocation ratio to CDN is issued, so that the fringe node of CDN distributes the bandwidth of corresponding ratio to default network and backup network according to new bandwidth allocation ratio.Embodiment of the present invention by realizing that CDN bandwidth is distributed automatically between the different networks, to advantageously reduce cost, improve CDN service quality.
Description
Technical field
The present invention relates to Internet technical field, in particular to a kind of CDN bandwidth scheduling method, acquisition and dispatch server
And storage medium.
Background technique
Content distributing network (Content Delivery Network, CDN), by network configuration node service everywhere
Device constructs one layer of intelligent virtual network on Internet basic, the content of website is published to the network " side closest to user
Edge " allows user to obtain required content nearby.With the rapid development of Internet, 4K HD video, interactive game, AR,
The application such as VR is constantly risen, and the demand to bandwidth is consequently increased.
Inventor has found the relevant technologies the prior art has at least the following problems: CDN node server is generally constructed in operator backbone
On the net, the fast development of business makes the also constantly growth, cost of in-fighting bandwidth caused by CDN fringe node access transit node
It is high.In addition, the pattern of Domestic Carriers " southern telecommunications, northern Netcom " causes maldistribution of the resources to weigh, such as telecommunications transit node
It is largely focused on south, and Netcom's transit node is largely focused on the north, and node is needed from computer room to provider backbone
To pass through multi-hop transfer, cause fringe node to return transit node delay longer.Therefore, it is unfavorable for based on single carrier network
The further development of CDN service.
Summary of the invention
Embodiment of the present invention is designed to provide a kind of CDN bandwidth scheduling method, acquisition and dispatch server and deposits
Storage media, by realizing that CDN bandwidth is distributed automatically between the different networks, to advantageously reduce cost, improve CDN service matter
Amount.
In order to solve the above technical problems, embodiments of the present invention provide a kind of CDN bandwidth scheduling method, it is applied to adjust
Spend server, comprising:
Obtain the real-time total bandwidth of CDN；Wherein, the CDN is implemented in default network and backup network, total band in real time
Width includes: the real-time bandwidth of default network and the real-time bandwidth of backup network；
According to the real-time total bandwidth, the service bandwidth of the default network and preferentially using the band of the default network
New bandwidth allocation ratio is calculated in wide principle；Wherein, the bandwidth allocation ratio is for determining that the bandwidth of the CDN exists
Allocation proportion on the default network and backup network；
Issue the fringe node of the new bandwidth allocation ratio to the CDN, for the CDN fringe node according to
The new bandwidth allocation ratio distributes the bandwidth of corresponding ratio to the default network and the backup network.
Embodiments of the present invention additionally provide a kind of CDN bandwidth scheduling method, comprising:
Acquire the real-time bandwidth of default network；
The real-time bandwidth of the default network is sent to CDN dispatch server, for the CDN dispatch server according to institute
New bandwidth allocation ratio is calculated in the real-time bandwidth for stating default network；Wherein, the bandwidth allocation ratio is for determining institute
State allocation proportion of the bandwidth of CDN on the default network and backup network.
Embodiments of the present invention additionally provide a kind of CDN bandwidth scheduling method, comprising:
Reception bandwidth distributes ratio；Wherein, the bandwidth allocation ratio is by the scheduling in CDN bandwidth scheduling method above-mentioned
Server issues；
The predetermined word segment value of IP data packet is set according to the bandwidth allocation ratio；
It is determined according to the predetermined word segment value and the IP data is transmitted using the default network or backup network of the CDN
Packet.
Embodiments of the present invention additionally provide a kind of dispatch server, comprising: memory and processor, memory storage
Computer program, processor run the computer program to realize CDN bandwidth scheduling method as described above.
Embodiments of the present invention additionally provide a kind of acquisition server, comprising: memory and processor, memory storage
Computer program, processor run the computer program to realize CDN bandwidth scheduling method as described above.
Embodiments of the present invention additionally provide a kind of storage medium, for storing computer-readable program, the calculating
Machine readable program is used to execute foregoing CDN bandwidth scheduling method for computer.
Embodiment of the present invention in terms of existing technologies, by the way that the node in CDN is implemented in default network simultaneously
And on backup network, so that CDN bandwidth (i.e. inner stream flow) can be carried out by presetting the route of network and backup network
Transmission.By obtaining the real-time total bandwidth of CDN, and according to real-time total bandwidth, the service bandwidth of default network and preferentially using pre-
If new bandwidth allocation ratio is calculated in the principle of the bandwidth of network, new bandwidth allocation ratio is then issued to CDN, thus
So that the bandwidth that CDN distributes corresponding ratio according to new bandwidth allocation ratio realizes CDN band to default network and backup network
Automatic dispatching of the width between default network and backup network.It on this basis, can be by more cost effective and quality
The route of service advantage is as default network, to advantageously reduce CDN service cost, improve service quality.
As one embodiment, the real-time total bandwidth of the acquisition CDN is specifically included:
Receive the real-time bandwidth of the default network；
According to the corresponding bandwidth allocation ratio of the real-time bandwidth of the real-time bandwidth of the default network and the default network
The real-time total bandwidth is calculated in value.
It is described according to the real-time total bandwidth, the service bandwidth of the default network and preferential as one embodiment
New bandwidth allocation ratio is calculated using the principle of the bandwidth of the default network, specifically includes:
Determine whether the real-time bandwidth of the default network is greater than service bandwidth, if more than the service bandwidth, then according to
The new bandwidth allocation ratio is calculated in preset formula.
As one embodiment, the preset formula are as follows:
P=T:(Z-T)；
Wherein, P is the new bandwidth allocation ratio, and Z is the real-time total bandwidth, and T is the service of the default network
Bandwidth.So as to fully using default transmitted data on network, be conducive to bring bigger economic benefit.
It, will if the real-time bandwidth of the default network is less than or equal to the service bandwidth as one embodiment
Apportioning cost is preset as the new bandwidth allocation ratio.
As one embodiment, the ratio between the service bandwidth of the default network and the planning bandwidth of the default network are greater than
75% and less than 85%.In this way, can prevent the real-time bandwidth of default network from planning bandwidth beyond it when real-time total bandwidth is uprushed,
Ensure the service quality of default network.
As one embodiment, further includes:
The running parameter of network and the backup network is preset described in real-time monitoring.
As one embodiment, the running parameter includes following one or any combination thereof:
The bandwidth of the default network and the respective transmission line of the backup network；
The biography of the type of service of the default network and the respective following one of the backup network or any combination thereof
Defeated bandwidth:
Program request, live streaming, web data；
The transmission bandwidth of the default network and the respective domain name granularity of the backup network；
Each downloading rate accounting of the default network and the respective transmission line of the backup network is respectively downloaded successfully
Rate accounting and the abnormal accounting of each downloading.To provide data to preset the dilatation of network and maintenance, be conducive to continue to optimize
Service quality.
As one embodiment, the bandwidth allocation ratio includes: to flow into distribution ratio and outflow distribution ratio；
The reception bandwidth distributes ratio specifically:
The fringe node of CDN receives the bandwidth allocation ratio；
The predetermined word segment value that IP data packet is set according to the bandwidth allocation ratio；It is true according to the predetermined word segment value
Surely the IP data packet is transmitted using the default network of the CDN or backup network, specifically included:
Predetermined word segment value of the fringe node according to the outflow distribution ratio setting outflow IP data packet, the network of CDN
Equipment is determined according to the predetermined word segment value of the outflow IP data packet and is transmitted using the default network or backup network of the CDN
The outflow IP data packet；
The inflow distribution ratio received is sent to the transit node of CDN, the transit node by the fringe node
The predetermined word segment value of IP data packet is flowed into according to the inflow distribution ratio setting, the network equipment is according to the inflow IP data
The predetermined word segment value of packet, which is determined, transmits the inflow IP data packet using the default network or backup network of the CDN.
As one embodiment, the predetermined word segment value is differentiated services code points value.
Detailed description of the invention
Fig. 1 is the flow chart of first embodiment CDN bandwidth scheduling method according to the present invention；
Fig. 2 is the structural schematic diagram of the CDN system in embodiment according to the present invention；
Fig. 3 is the flow chart of second embodiment CDN bandwidth scheduling method according to the present invention；
Fig. 4 is the flow chart of third embodiment CDN bandwidth scheduling method according to the present invention；
Fig. 5 is the flow chart of the 4th embodiment CDN bandwidth scheduling method according to the present invention；
Fig. 6 is IP agreement packet TOS form schematic diagram；
Fig. 7 is the structural schematic diagram of the 5th embodiment dispatch server according to the present invention；
Fig. 8 is the structural schematic diagram of sixth embodiment acquisition server according to the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Each embodiment be explained in detail.However, it will be understood by those skilled in the art that in each embodiment party of the present invention
In formula, many technical details are proposed in order to make reader more fully understand the present invention.But even if without these technical details
And various changes and modifications based on the following respective embodiments, claimed technical solution of the invention also may be implemented.
The first embodiment of the present invention is related to a kind of CDN bandwidth scheduling methods, applied to CDN system as shown in Figure 2
In dispatch server 109.The CDN system is implemented on default network 100 and backup network 101.Default network 100 wraps
Include but be not limited to network (such as self-built cloud net) that CDN service quotient voluntarily constructs, preferably carrier network etc..CDN service quotient
The network voluntarily constructed compared to carrier network can more cost effective and service quality more preferably, such as resource distribution is more equal
Weighing apparatus is delayed lower.Default network can certainly be cost and the preferable carrier network of service quality.Currently, operator
Network generally can be used as backup network, may be relatively higher compared to its cost for default network, thereby increases and it is possible to due to resource
Being unevenly distributed weighing apparatus etc. has that delay is larger.Implementation of the present embodiment for default network and carrier network
It is not particularly limited.The CDN system further include: several fringe nodes 102 and transit node 103, first node interchanger
104, the source interchanger 106, second times of second node interchanger 105, first times source interchanger 107, acquisition server 108.For letter
Change diagram, respectively illustrates a fringe node 102 and a transit node 103 in Fig. 2.The CDN bandwidth tune of present embodiment
Degree method is applied to dispatch server 109.
Referring to Fig. 1, the CDN bandwidth scheduling method of present embodiment includes step 101 to step 103.
Step 101: obtaining the real-time total bandwidth of CDN.
Wherein, real-time total bandwidth includes: the real-time bandwidth of default network and the real-time bandwidth of backup network.The reality of CDN
When total bandwidth can be divided into flow into total bandwidth and outflow total bandwidth.It flows into total bandwidth and for example refers to that therefrom trochanterion flows to edge
The bandwidth of node, outflow total bandwidth for example refer to the bandwidth that transit node is flowed to from fringe node.It is total in real time in present embodiment
Bandwidth includes flowing into total bandwidth and outflow total bandwidth, and so without being limited thereto, in practical applications, real-time total bandwidth may be stream
Enter total bandwidth or outflow total bandwidth.Default network and backup network can respectively include plurality of transmission lines, at this time, it may be necessary to
Each transmission lines of default network are acquired to obtain the real-time bandwidth of every transmission lines respectively, equally to backup network
Plurality of transmission lines be acquired to obtain the real-time bandwidth of each transmission lines respectively, wherein each item transmission of default network
Route can be corresponded with each transmission lines of backup network, so without being limited thereto.It is similar with the real-time total bandwidth of CDN, it presets
Network and the real-time bandwidth of backup network, which are also classified into, flows into bandwidth and outflow bandwidth.For simplicity, in present embodiment
Default network and backup network are illustrated by taking a transmission lines as an example respectively.
Step 101 obtains the real-time total bandwidth of CDN and specifically includes: the real-time bandwidth of default network is received, according to default network
The corresponding bandwidth allocation ratio calculation of real-time bandwidth of real-time bandwidth and default network obtain real-time total bandwidth.Wherein, band
Width distribution ratio is used to determine allocation proportion of the bandwidth of CDN on default network and backup network.Preset the real-time of network
Bandwidth can be collected by acquisition server 108, as shown in Fig. 2, acquisition server 108 can be handed over by first time source of acquisition
Change planes 106 and the port data of second time source interchanger 107 obtain the real-time bandwidth of default network 100.Acquisition server 108
The real-time bandwidth of default network can be periodically collected, such as acquisition once obtains the reality of a default network per minute
Time Bandwidth.In some instances, can also according to the fluctuation situation of real-time bandwidth be arranged frequency acquisition, such as bandwidth fluctuation compared with
Higher bandwidth frequency acquisition is arranged in the big period, bandwidth fluctuation is smaller, more stable period, lower bandwidth is arranged and adopts
Collect frequency, present embodiment is not particularly limited bandwidth acquisition mode.Acquisition server 108 is by collected default network
100 real-time bandwidth real-time report is to dispatch server 109.In present embodiment, due to default network and backup network it
Between bandwidth distribute according to a certain percentage, i.e., the real-time bandwidth of collected default network both corresponds to specific band every time
Width distribution ratio.For example, the default bandwidth distribution ratio between default network and backup network is 8:2, at this point, collecting reality
When total bandwidth in preset network distribution bandwidth account for 80%.Therefore, dispatch server 109 is according to the default network received
The real-time total bandwidth of CDN can be calculated in real-time bandwidth and its corresponding bandwidth allocation ratio, i.e. the real-time total bandwidth of CDN is equal to pre-
If the quotient of the real-time bandwidth of network and corresponding bandwidth allocation ratio.The acquisition side of present embodiment total bandwidth real-time for CDN
Formula is not particularly limited.In some instances, acquisition server can also collect the real-time bandwidth of backup network, and report
Dispatch server, similarly, dispatch server can be according to the real-time bandwidths and its corresponding bandwidth allocation radiometer of backup network
Calculation obtains the real-time total bandwidth of CDN.
Step 102: according to real-time total bandwidth, the service bandwidth of default network and the preferential bandwidth using default network
New bandwidth allocation ratio is calculated in principle.
Wherein it is possible to be determined newly according to the difference size of the service bandwidth of default network and the service bandwidth of backup network
The calculation of bandwidth allocation ratio.Assuming that the ratio between the service bandwidth and the service bandwidth of backup network of default network are greater than 50%
And less than 100%, that is, when the service bandwidth difference of the service bandwidth and backup network of presetting network is less big, can pre-establish
Corresponding relationship between real-time total bandwidth and new bandwidth allocation ratio, by the corresponding relationship for example with table side shown in table one
Formula is stored, and is then tabled look-up according to real-time total bandwidth and corresponding new bandwidth allocation ratio can be obtained.
Table one
Present embodiment is not particularly limited the calculation of new bandwidth allocation ratio.Wherein, new bandwidth point
It can be divided into ratio and flow into distribution ratio and outflow distribution ratio.The service bandwidth of default network can also be divided into inflow service band
Wide and outflow service bandwidth.Wherein, distribution ratio is flowed into according to the inflow service bandwidth meter for flowing into total bandwidth and default network
It obtains, outflow distribution ratio is similarly calculated according to the outflow service bandwidth of outflow total bandwidth and default network.It needs
Illustrate, due to the more preferably preferred network such as default network corresponding cost, performance, so according to real-time total bandwidth and in advance
If the principle based on the preferential bandwidth using default network when the service bandwidth of network determines new bandwidth allocation ratio, that is, filling
Divide on the basis of the service bandwidth using default network, the part that will exceed the service bandwidth of default network is switched to backup network.
Step 103: issue the fringe node of new bandwidth allocation ratio to CDN, for CDN fringe node according to new
Bandwidth allocation ratio distributes the bandwidth of corresponding ratio to default network and backup network.
Wherein, the new bandwidth allocation ratio being calculated is issued to each edge section in CDN by dispatch server 109
Point, so that each fringe node distributes the bandwidth of corresponding ratio to default network and spare net according to new bandwidth allocation ratio
Network.As shown in Fig. 2, in practical applications, acquisition server 108 and dispatch server 109 can be different servers, and two
Person is all connected with back source interchanger, or is also possible to same based on cost consideration acquisition server 108 and dispatch server 109
Server.Bandwidth allocation ratio is issued to first node interchanger 104 by first time source interchanger 106 and second node is handed over
Change planes 105, the fringe node being then issued to again under each node switch.It is so without being limited thereto, it can also be each fringe node
A dispatch server is respectively set, at this point, bandwidth allocation ratio can directly be issued to corresponding fringe node.
When default network and backup network include plurality of transmission lines, need to obtain the real-time of every transmission lines respectively
Bandwidth, and the corresponding bandwidth allocation ratio of every transmission lines is calculated, by the corresponding bandwidth allocation ratio of every transmission lines
Value is issued to fringe node, so that fringe node can carry out bandwidth according to the bandwidth allocation ratio of the transmission line at place
Distribution.
Present embodiment compared with prior art, by CDN while being implemented in default network and backup network, and according to
The principle that the service bandwidth of the real-time total bandwidth of CDN, the service bandwidth of default network and default network preferentially uses calculates
To new bandwidth allocation ratio, by updating the total bandwidth of bandwidth allocation Ratio control CDN in default network and backup network
On bandwidth allocation so that default Network Priority undertakes data transmission, to reduce the transmission of the data in backup network, in turn
It advantageously reduces cost, improve transmission quality.
Second embodiment of the present invention is related to a kind of CDN bandwidth scheduling method, present embodiment and first embodiment
It is roughly the same, it is in place of the main distinction, in the first embodiment, new bandwidth allocation ratio is obtained by lookup table mode,
And in the present embodiment, new bandwidth allocation ratio is calculated, in real time by preset formula so as to adjust for greater flexibility
Whole bandwidth allocation ratio.
Referring to Fig. 3, the CDN bandwidth scheduling method of present embodiment includes step 301 to step 305.
Step 301: obtaining the real-time total bandwidth of CDN.
Step 301 is identical as the step 101 of first embodiment, and details are not described herein again.
Step 302: determining whether the real-time bandwidth of default network is greater than service bandwidth, if more than service bandwidth, then execute
Step 303, if being less than or equal to service bandwidth, 304 are thened follow the steps.
Wherein, the ratio between the service bandwidth of default network and the planning bandwidth of default network can be greater than 75% and be less than
85%, for example, the service bandwidth of default network plans the 80% of bandwidth for it.Planning bandwidth refers to the maximum that network can carry
Bandwidth, service bandwidth refer to the large bandwidth for being conducive to can be provided when network stabilization work.For example, the planning band of default network
Width is 10Gbps (Gigabits per second), and the service bandwidth for presetting network is 8Gbps, service band of the present embodiment for default network
Wide value is not particularly limited.Since the real-time total bandwidth of CDN is according to bandwidth allocation ratio in default network and spare
It is distributed between network, so presetting the bandwidth also proportional increase on network, such as in bandwidth when real-time total bandwidth increases
When distribution ratio is 1:2, when real-time total bandwidth increases 3Gbps, then the real-time bandwidth for presetting network distribution, which corresponds to, to be increased
Therefore 1Gbps by setting its preset ratio for planning bandwidth for the service bandwidth of default network, can be prevented total in real time
Bandwidth time-division of uprushing is assigned to the real-time bandwidth of default network and plans bandwidth beyond its, ensures the service quality of default network.
Step 303: new bandwidth allocation ratio being calculated according to preset formula.
Wherein, preset formula may is that
P=T:(Z-T)；
Wherein, P is new bandwidth allocation ratio, and Z is real-time total bandwidth, and T is the service bandwidth of default network.
It should be noted that flowing into distribution ratio and outflow distribution ratio can be used above-mentioned formula and is calculated.For example, meter
When calculating inflow distribution ratio, P indicates to flow into distribution ratio in formula, and T indicates the inflow service bandwidth of default network, and Z expression flows into total
Bandwidth；When calculating outflow distribution ratio, quantity corresponding replace in formula flows out relevant parameter.
Step 304: using default apportioning cost as new bandwidth allocation ratio.
Wherein, default apportioning cost is, for example, 1:0, i.e. transmission line of all bandwidth of CDN by presetting network.
Below from small to large to real-time total bandwidth, it is counted during and changing from big to small according to step 302 to step 304
It calculates and obtains new bandwidth allocation ratio and its scheduling effect of bandwidth is illustrated.
Assuming that the service bandwidth of default network is 8Gbps, according to the first round, the real-time bandwidth of collected default network is obtained
Real-time total bandwidth to CDN is 10Gbps, since real-time total bandwidth is greater than the service bandwidth of default network, so according to above-mentioned public affairs
New bandwidth allocation ratio is calculated in formula are as follows: 8:(10-8)=4:1.
The real-time bandwidth that second wheel collects default network is 10Gbps, corresponding real-time total bandwidth are as follows: 10/ (4/5)=
12.5Gbps, real-time total bandwidth are still greater than the service bandwidth of default network, and new bandwidth is calculated according to above-mentioned formula at this time
Distribute ratio are as follows: 8:(12.5-8)=16:9.Since 16:9 is less than 4:1, it, can be automatic when real-time total bandwidth increases
It turns bandwidth allocation ratio down, by more bandwidth allocations to backup network, realizes that the race height of bandwidth is cut out.
The real-time bandwidth that third round collects default network is 7Gbps, and it is 7/ (16/25) that real-time total bandwidth, which is calculated,
=11Gbps, real-time total bandwidth reduce, but are still greater than the service bandwidth 8Gbps of default network, are calculated according to above-mentioned formula
To new bandwidth allocation ratio are as follows: 8:(11-8)=8:3, since 8:3 is greater than 16:9, so when real-time total bandwidth reduces, from
It is dynamic to tune up bandwidth allocation ratio, by more bandwidth allocations to default network, realize the drop amount switchback of bandwidth.
The real-time bandwidth that fourth round collects default network is 5Gbps, and corresponding to and real-time total bandwidth is calculated is 5/ (8/
11)=6.875Gbps, i.e., real-time total bandwidth is less than the service bandwidth 8Gbps of default network, at this time using 1:0 as new bandwidth
Ratio is distributed, default network is assigned to so that all bandwidth be divided equally, realizes the full dose switchback of bandwidth.
By step 302 to step 304, can (service bandwidth for being greater than default network) larger in real-time total bandwidth and
When being continuously increased, more bandwidth are switched into backup network automatically, in real-time total bandwidth when larger but continuous decline, automatically by portion
Bandwidth switchback is divided to preset network, at real-time total bandwidth smaller (service bandwidth for being less than or equal to default network), by institute
There is bandwidth full dose to be switched to default network, so as to maximumlly utilize the transmission of default network implementations CDN inner stream flow.
Step 305: issue the fringe node of new bandwidth allocation ratio to CDN, for CDN fringe node according to new
Bandwidth allocation ratio distributes the bandwidth of corresponding ratio to default network and backup network.
Step 305 is identical as the step 103 of first embodiment, and details are not described herein again.
Present embodiment compared with prior art, by CDN while being implemented in default network and backup network, and according to
The principle that the service bandwidth of the real-time total bandwidth of CDN, the service bandwidth of default network and default network preferentially uses calculates
To new bandwidth allocation ratio, by updating the total bandwidth of bandwidth allocation Ratio control CDN in default network and backup network
On bandwidth allocation reduce the biography of CDN bandwidth in backup network so that default Network Priority undertakes the transmission of CDN bandwidth
It is defeated, and then cost can be reduced, improve transmission quality.Also, new bandwidth allocation ratio is calculated according to preset formula, it can be flexible
Ground is according to the variation of real-time total bandwidth preferentially by bandwidth allocation to default network.
Third embodiment of the present invention is related to a kind of CDN bandwidth scheduling method, please continue to refer to Fig. 2, this method application
Acquisition server 108 in Fig. 2.Referring to Fig. 4, the CDN bandwidth scheduling method of present embodiment includes step 401,402.
Step 401: acquiring the real-time bandwidth of default network.
Default net is obtained by the port data of first time source interchanger 106 of acquisition and second time source interchanger 107
The real-time bandwidth of network.
Step 402: the real-time bandwidth of default network being sent to CDN dispatch server, for CDN dispatch server according to pre-
If new bandwidth allocation ratio is calculated in the real-time bandwidth of network.Wherein, bandwidth allocation ratio is used to determine the edge clothes of CDN
Allocation proportion of the device bandwidth of being engaged on default network and backup network.
In one example, the CDN bandwidth scheduling method of present embodiment can also include real-time monitoring preset network with
And the running parameter of backup network.The running parameter includes following one or any combination thereof:
The bandwidth of default network and the respective transmission line of backup network；
Preset the transmission bandwidth of the type of service of network and the respective following one of backup network or any combination thereof:
Program request, live streaming, web data；
The transmission bandwidth of default network and the respective domain name granularity of backup network；
Each downloading rate accounting of default network and the respective transmission line of backup network, each downloading success rate accounting with
And each abnormal accounting of downloading.
Can acquire the downloading rate of the transmission line of default network and backup network in real time, download success rate and under
It carries abnormal.Downloading rate is for example divided into multiple rate periods, and multiple sections can also be divided by downloading success rate and downloading exception,
Downloading rate accounting refers to accounting of some downloading rate in multiple rate periods.Downloading success rate refers to some downloading
Accounting of the success rate in multiple success rate sections downloads abnormal accounting and refers to some downloading unnatural proportions in multiple anomaly ratios
Accounting in example section.
By the bandwidth, the transmission bandwidth of different service types and the transmission belt of domain name granularity that monitor different transmission lines
Width is convenient for subsequent dilatation convenient for grasping the actual demand of bandwidth.Each downloading rate by monitoring different transmission lines accounts for
Than, each downloading success rate accounting and it is each download abnormal accounting etc., safeguarded convenient for route bad to service performance in time.
Present embodiment compared with prior art, by acquiring the real-time bandwidth of default network in real time, and reports to scheduling
Server, so that new bandwidth allocation ratio can be calculated in dispatch server according to default network bandwidth priority principle
Value, and then control distribution of the CDN total bandwidth on default network and backup network.By preferentially distributing and preferentially using default
Network bandwidth can reduce cost, improve service quality.
4th embodiment of the invention is related to a kind of CDN bandwidth scheduling method, please continue to refer to Fig. 2, this method application
CDN in Fig. 2.Wherein, CDN includes: several fringe nodes 102, transit node 103 and the network equipment, the network equipment
For example, first node interchanger 104, the source interchanger of source interchanger 106, second times of second node interchanger 105, first times
107.Referring to Fig. 5, the CDN bandwidth scheduling method of present embodiment includes step 501 to step 503.
Step 501: reception bandwidth distributes ratio.
Specifically, each fringe node reception bandwidth in CDN distributes ratio.The bandwidth allocation ratio is by such as first or
Dispatch server in CDN bandwidth scheduling method described in two embodiments issues.
Step 502: the predetermined word segment value of IP data packet is set according to bandwidth allocation ratio.
Step 503: the default network or backup network transmission of IP data packet for using CDN are determined according to predetermined word segment value.
Specifically, step 502, in 503, for outflow distribution ratio, fringe node is according to outflow distribution ratio setting outflow IP
The network equipment of the predetermined word segment value of data packet, CDN is determined according to the predetermined word segment value of outflow IP data packet using the default of CDN
Network or backup network transmission outflow IP data packet；For distribution ratio is flowed into, then fringe node distributes the inflow received
Than the transit node for being sent to CDN, transit node flows into the predetermined word segment value of IP data packet, network according to distribution ratio setting is flowed into
Equipment is determined according to the predetermined word segment value for flowing into IP data packet flows into IP number using default network or the backup network transmission of CDN
According to packet.Wherein, predetermined word segment value can be differentiated services code points value (differentiated services code
Point, DSCP), it is so without being limited thereto.
In present embodiment, the network equipment includes first node interchanger 104 and second node interchanger in Fig. 2
105 (being referred to as core switch).Core switch is used to be that IP data packet selects default network or spare according to IP agreement
Network, concrete principle are as follows:
Firstly, please referring to IP agreement format shown in following table.
Wherein, the format of 8 service types (TOS) is as shown in Figure 6.DSCP value is TOS (Type Of Service, service
Type) first six digits, then two are currently unused (currently unused, CU) field.Present embodiment selection
DSCP is as preset field, so that core switch determines the transmission line of IP data packet according to DSCP value.
Specifically, core switch routing priority are as follows: artificial specified circuit is by > OSPF > default route.Artificial specified circuit by
DSCP value is arranged by the service type of IP data packet, core switch executes not after receiving IP data packet according to DSCP value
Same routing.For example, core switch is according to OSPF (Open Shortest Path when DSCP value is Binary Zero 00 000
First, ospf) the default transmitted data on network of agreement selection.If DSCP value is equal to 1 (i.e. Binary Zero 00
001) when, core switch forces selection backup network to transmit data, so without being limited thereto.
Describe how CDN according to the new bandwidth allocation ratio received distributes corresponding bandwidth to pre- below with reference to Fig. 2
If network 100 and default network 101.
In Fig. 2, exercise boundary gateway protocol between first node interchanger 104 and second node interchanger 105
(BorderGatewayProtocol, BGP), so that first time source interchanger 106 and second time source interchanger 107 pass through BGP
Learn the routing entry of peer node, and also mutually study pair between first node interchanger 104 and second node interchanger 105
The routing entry of side.Assuming that when the fringe node under first node interchanger 104 will return transit node, if target transit node
Also it is the transit node under first node interchanger 104, then routing forwarding directly can be carried out by first node interchanger 104；
If target transit node is the transit node below second node interchanger 105, gateway (the is reached after packet encapsulation
One node switch 104) after, route selection can be carried out by routing table, then deliver a packet to first time source exchange
Machine 106, then by second time source interchanger 107 being transferred to the transit node under second node interchanger 105 again, (i.e. data packet is logical
Default network transmission is crossed to transit node), or data packet is transmitted under second node interchanger 105 by backup network
Transit node.Data packet returns to principle and is same as above.
Wherein, fringe node 102 receives scheduling result from dispatch server 109, and scheduling result includes: local IP, purpose
IP and new bandwidth allocation ratio.When fringe node initiates downloading request to transit node, according to domain name mapping to target
IP, and the Target IP is matched with the Target IP that dispatch server issues, if successful match, according to new bandwidth allocation
Ratio is that DSCP value is arranged in unit by a network connection.
In present embodiment, when fringe node 102 initiates downloading request to transit node 103, according to dispatch server 109
The bandwidth allocation ratio setting DSCP value issued.Wherein, outflow DSCP value is arranged by fringe node 102, and flows into DSCP value then
It is arranged by transit node.Specifically, bandwidth allocation ratio is arranged by a network connection for unit fringe node based on the received
Flow out DSCP value.Fringe node by the packet header HTTP carrier state code to transit node 103, when 103 returned data of transit node
It is arranged according to the status code and flows into DSPC value.Core switch parses DSCP value from the IP data packet received, if flowing into
DSCP value is 1, then backup network is selected to transmit data, if flowing into DSCP value is 0, selects default transmitted data on network, for
Outflow DSCP value is also processed similarly.
Present embodiment compared with prior art, by acquiring the real-time bandwidth of default network in real time, and reports to scheduling
Server, so that new bandwidth allocation ratio can be calculated in dispatch server according to default network bandwidth priority principle
Value, and then control distribution of the CDN total bandwidth on default network and backup network.By preferentially distributing and preferentially using default
Network bandwidth can reduce cost, improve service quality.Also, IP data packet is arranged by fringe node or transit node
DSCP value realize the Route Selection of default network and backup network, it is easy to accomplish.
5th embodiment of the invention is related to a kind of dispatch server.As shown in fig. 7, the dispatch server includes: to deposit
Reservoir 702 and processor 701；
Wherein, the memory 702 is stored with the instruction that can be executed by least one described processor 701, described instruction
It is executed by least one described processor 701 to realize: obtaining the real-time total bandwidth of CDN；Wherein, the CDN is implemented in default net
Network and backup network, the real-time total bandwidth include: the real-time bandwidth of default network and the real-time bandwidth of backup network；
New bandwidth allocation ratio is calculated according to the service bandwidth of the real-time total bandwidth, the default network；Its
In, the bandwidth allocation ratio is used to determine distribution ratio of the bandwidth of the CDN on the default network and backup network
Example；
The new bandwidth allocation ratio is issued to CDN, so that the CDN is distributed according to the new bandwidth allocation ratio
The bandwidth of corresponding ratio is to the default network and the backup network.
One or more processors 701 and memory 702, in Fig. 7 by taking a processor 701 as an example.Processor 701,
Memory 702 can be connected by bus or other modes, in Fig. 7 for being connected by bus.Memory 702 is used as one
Kind non-volatile computer readable storage medium storing program for executing, it is executable to can be used for storing non-volatile software program, non-volatile computer
Program and module.Non-volatile software program, instruction and the mould that processor 701 is stored in memory 702 by operation
Block realizes above-mentioned CDN bandwidth scheduling method thereby executing the various function application and data processing of equipment.
Memory 702 may include storing program area and storage data area, wherein storing program area can store operation system
Application program required for system, at least one function.In addition, memory 702 may include high-speed random access memory, may be used also
To include nonvolatile memory, a for example, at least disk memory, flush memory device or the storage of other nonvolatile solid states
Device.In some embodiments, it includes the memory remotely located relative to processor 701 that memory 702 is optional, these are remote
Journey memory can pass through network connection to external equipment.The example of above-mentioned network includes but is not limited to internet, enterprises
Net, local area network, mobile radio communication and combinations thereof.
One or more module is stored in memory 702, when being executed by one or more processor 701, is held
CDN bandwidth scheduling method in the above-mentioned any means embodiment of row.
Above equipment can be performed embodiment of the present invention provided by method, have the corresponding functional module of execution method and
Beneficial effect, the not technical detail of detailed description in the present embodiment, reference can be made to method provided by embodiment of the present invention.
Present embodiment is implemented in default network and backup network, dispatch service compared with prior art, by CDN simultaneously
The principle that device is preferentially used according to the real-time total bandwidth of CDN, the service bandwidth of default network and the service bandwidth of default network
New bandwidth allocation ratio is calculated, so that CDN is by the total bandwidth of received bandwidth allocation Ratio control CDN pre-
If the bandwidth allocation in network and backup network, so that default Network Priority undertakes the transmission of CDN bandwidth, reduce spare
The transmission of CDN bandwidth on network, and then cost can be reduced, improve transmission quality.Also, new bandwidth is calculated according to preset formula
Ratio is distributed, it can be neatly according to the variation of real-time total bandwidth preferentially by bandwidth allocation to default network.
Sixth embodiment of the invention is related to a kind of acquisition server.As shown in figure 8, the acquisition server includes: to deposit
Reservoir 802 and processor 801；
Wherein, the memory 802 is stored with the instruction that can be executed by least one described processor 801, described instruction
It is executed by least one described processor 801 to realize the CDN bandwidth scheduling method as described in third embodiment.
Compared with prior art, acquisition server acquires the real-time bandwidth of default network to present embodiment in real time, and reports
To dispatch server, so that new bandwidth point can be calculated in dispatch server according to default network bandwidth priority principle
With ratio, and then control distribution of the CDN total bandwidth on default network and backup network.By preferentially distributing and preferentially using
Default network bandwidth, can reduce cost, improve service quality.
7th embodiment of the invention is related to a kind of non-volatile memory medium, for storing computer-readable program,
The computer-readable program is used to execute above-mentioned all or part of embodiment of the method for computer.
That is, it will be understood by those skilled in the art that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, which is stored in a storage medium, including some instructions are to make
It obtains an equipment (can be single-chip microcontroller, chip etc.) or processor (processor) executes side described in each embodiment of the present invention
The all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (15)
1. a kind of CDN bandwidth scheduling method is applied to dispatch server characterized by comprising
Obtain the real-time total bandwidth of CDN；Wherein, the CDN is implemented in default network and backup network, the real-time total bandwidth packet
It includes: the real-time bandwidth of default network and the real-time bandwidth of backup network；
According to the real-time total bandwidth, the service bandwidth of the default network and preferentially using the bandwidth of the default network
New bandwidth allocation ratio is calculated in principle；Wherein, the bandwidth allocation ratio is used to determine the bandwidth of the CDN described
Allocation proportion on default network and backup network；
Issue the fringe node of the new bandwidth allocation ratio to the CDN, for the CDN fringe node according to
New bandwidth allocation ratio distributes the bandwidth of corresponding ratio to the default network and the backup network.
2. CDN bandwidth scheduling method according to claim 1, which is characterized in that the real-time total bandwidth of the acquisition CDN, tool
Body includes:
Receive the real-time bandwidth of the default network；
According to the corresponding bandwidth allocation radiometer of the real-time bandwidth of the real-time bandwidth of the default network and the default network
Calculation obtains the real-time total bandwidth.
3. CDN bandwidth scheduling method according to claim 2, which is characterized in that described according to the real-time total bandwidth, institute
It states the service bandwidth of default network and new bandwidth allocation preferentially is calculated using the principle of the bandwidth of the default network
Ratio specifically includes:
Determine whether the real-time bandwidth of the default network is greater than service bandwidth, if more than the service bandwidth, then according to default
The new bandwidth allocation ratio is calculated in formula.
4. CDN bandwidth scheduling method according to claim 3, which is characterized in that the preset formula are as follows:
P=T:(Z-T)；
Wherein, P is the new bandwidth allocation ratio, and Z is the real-time total bandwidth, and T is the service bandwidth of the default network.
5. CDN bandwidth scheduling method according to claim 3, which is characterized in that if the real-time bandwidth of the default network
Less than or equal to the service bandwidth, then using default apportioning cost as the new bandwidth allocation ratio.
6. CDN bandwidth scheduling method according to any one of claim 1 to 5, which is characterized in that the default network
The ratio between planning bandwidth of service bandwidth and the default network is greater than 75% and less than 85%.
7. a kind of CDN bandwidth scheduling method characterized by comprising
Acquire the real-time bandwidth of default network；
The real-time bandwidth of the default network is sent to CDN dispatch server, for the CDN dispatch server according to described pre-
If new bandwidth allocation ratio is calculated in the real-time bandwidth of network；Wherein, the bandwidth allocation ratio is for determining the CDN
Allocation proportion of the bandwidth on the default network and backup network.
8. CDN bandwidth scheduling method according to claim 7, which is characterized in that further include:
The running parameter of network and the backup network is preset described in real-time monitoring.
9. CDN bandwidth scheduling method according to claim 8, which is characterized in that the running parameter includes following one
Or any combination thereof:
The bandwidth of the default network and the respective transmission line of the backup network；
The transmission belt of the type of service of the default network and the respective following one of the backup network or any combination thereof
It is wide:
Program request, live streaming, web data；
The transmission bandwidth of the default network and the respective domain name granularity of the backup network；
Each downloading rate accounting of the default network and the respective transmission line of the backup network, each downloading success rate account for
Than and each download abnormal accounting.
10. a kind of CDN bandwidth scheduling method characterized by comprising
Reception bandwidth distributes ratio；Wherein, the bandwidth allocation ratio is by CDN band such as described in any one of claims 1 to 6
Dispatch server in wide dispatching method issues；
The predetermined word segment value of IP data packet is set according to the bandwidth allocation ratio；
It is determined according to the predetermined word segment value and the IP data packet is transmitted using the default network or backup network of the CDN.
11. CDN bandwidth scheduling method according to claim 10, which is characterized in that the bandwidth allocation ratio includes: stream
Enter distribution ratio and outflow distribution ratio；
The reception bandwidth distributes ratio specifically:
The fringe node of CDN receives the bandwidth allocation ratio；
The predetermined word segment value that IP data packet is set according to the bandwidth allocation ratio；It is adopted according to predetermined word segment value determination
The IP data packet is transmitted with the default network or backup network of the CDN, is specifically included:
Predetermined word segment value of the fringe node according to the outflow distribution ratio setting outflow IP data packet, the network equipment of CDN
Described in default network or the backup network transmission determined according to the predetermined word segment value of the outflow IP data packet using the CDN
Flow out IP data packet；
The inflow distribution ratio received is sent to the transit node of CDN by the fringe node, the transit node according to
The predetermined word segment value for flowing into distribution ratio setting and flowing into IP data packet, the network equipment is according to the inflow IP data packet
Predetermined word segment value, which is determined, transmits the inflow IP data packet using the default network or backup network of the CDN.
12. CDN bandwidth scheduling method according to claim 10, which is characterized in that the predetermined word segment value is difference clothes
Business code point value.
13. a kind of dispatch server characterized by comprising memory and processor, memory store computer program, place
It manages device and runs the computer program to realize such as CDN bandwidth scheduling method described in any one of claims 1 to 6.
14. a kind of acquisition server characterized by comprising memory and processor, memory store computer program, place
Reason device runs the computer program to realize the CDN bandwidth scheduling method as described in any one of claim 7 to 9.
15. a kind of storage medium, which is characterized in that for storing computer-readable program, the computer-readable program is used for
The CDN bandwidth scheduling method as described in any one of claims 1 to 12 is executed for computer.
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