CN105049368A - Priority-based load balancing algorithm in hybrid network - Google Patents
Priority-based load balancing algorithm in hybrid network Download PDFInfo
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- CN105049368A CN105049368A CN201510527054.8A CN201510527054A CN105049368A CN 105049368 A CN105049368 A CN 105049368A CN 201510527054 A CN201510527054 A CN 201510527054A CN 105049368 A CN105049368 A CN 105049368A
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- network interface
- hybrid network
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Data Exchanges In Wide-Area Networks (AREA)
Abstract
This invention discloses a priority-based load balancing algorithm in a hybrid network. The load balancing algorithm specifically comprises the following steps: periodically monitoring the total traffic (M1, M2...Mi) of all slave network ports in Bonding through a miimon function in a Bonding link; prioritizing transport protocols, and periodically sampling the IP flows (m1, m2...mi) and the IP transport protocol priority levels (L1, L2...Li); storing above information into a structure array of a client by using the IP as a hash key, setting the weight as gamma and setting the threshold of the network port as N, wherein the formula is as shown in the description; when the formula as shown in the description is satisfied, starting a strategy adjustment; performing quicksort for gamma<i>; if gamma<j> is less than gamma<i> and greater than gamma<k>, reducing the traffic of the IP flows of gamma<j> and gamma<k> so that the IP flow of gamma<i> sends and receives data successfully; when the formula as shown in the description is satisfied, stopping the strategy adjustment. According to the invention, the load balancing of the whole hybrid network is ensured dynamically in real time; the important data is ensured to be sent normally in a complicated and congested network environment; the problem of packet loss due to network congestion is reduced to the most extent; and the user experience is improved.
Description
Technical field
The present invention relates to networking technology area, specifically under a kind of hybrid network based on the load-balancing algorithm of priority.
Background technology
Present most of server all carries many gigabits network interface, utilizes network card binding to increase the network bandwidth, can do corresponding redundancy again simultaneously, be applied to a lot of scenes at present.The network card binding pattern carried under (SuSE) Linux OS, Linuxbonding drives and provides one and multiple Network Interface Unit is tied to single network interface arranges and use, for the platform of Network Load Balance and network redundancy.Network Load Balance for bonding is that we commonly use in file server, such as, three pieces of network interface cards, is used as one piece and carrys out use, and solve an IP address, flow is excessive, the problem that server network pressure is excessive.If in Intranet, file server, in order to the convenience on Management and application, is with same IP address mostly.For the local network of hundred M, file server is when multiple user uses simultaneously, and network pressure is great, and in order to solve same IP address, break through stream quantitative limitation, netting twine and the throughput of network interface card to data are conditional after all.If when limited resource, realize Network Load Balance, the best way is exactly bonding.
Under normal circumstances, network interface card receives only the ethernet frame that object hardware address is self Mac, all filters for other Frame, to alleviate the burden of driver.But network interface card also supports that another is called the pattern mixing promisc, can receive frames all on network, such as tcpdump.Bonding also runs under this scheme, and have modified the mac address in driver, makes into identical, can receive the Frame of specific mac by the Mac address of two pieces of network interface cards.Then corresponding Frame is sent to bond driver handles.The at present research at home and abroad of bond process belongs to relative maturity period, but, due to the asymmetry of LnuxBonding technology, just utilize ARP negotiation mechanism to realize for the load balancing receiving data, cause in the network interface of server B onding equipment the phenomenon occurring " is busy how not busy ".Raise if the user side transmitted same network interface constantly increases or transmits data speed simultaneously, cause this network interface load down, exceed network interface maximum transfer speed, the transmission speed of each user side IP flow in network interface will sharply decline, cause the reduction of network I/O performance like this, affect server write performance.
Summary of the invention
Based on the load-balancing algorithm of priority under the hybrid network the object of the present invention is to provide and a kind ofly make load balancing, improving user experience, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
Based on a load-balancing algorithm for priority under hybrid network, concrete steps are as follows:
1) monitor: monitor the summation (M of each slave network interface flow in Bonding by the miimon periodicity of function in Bonding link
1, M
2m
i);
2) priority divides: the priority level dividing host-host protocol, and wherein HTTP, FTP and P2P are Three Estate, and the flow (m of HTTP>FTP>P2P, each IP of periodic samples
1, m
2m
i) and the host-host protocol priority (L of each IP
1, L
2l
i);
3) samples storage data: be that Hash keys preserves above information in the Array for structural body of user side with IP, if weights are γ, network interface threshold value is N,
when
shi Qiyong adjustable strategies;
4) scheduling mechanism: to γ
icarry out quicksort, if γ
i> γ
j> γ
k, so reduce γ
jand γ
kthe flow that place IP flows, ensures γ
iwhat place IP flowed transmits and receive data smoothly, when
time, adjustable strategies terminates.
As the further scheme of the present invention: the hardware of described hybrid network comprises server box, router and terminal, two wired network adapter and wireless network card is provided with in described server box, in described server box, LinuxCentos system is housed, by configuration DHCP and DNS, the routing forwarding rule of amendment fire compartment wall and router, start finger daemon and many network card bindings technology of AP certificate server, build an Ethernet access in radio, the hybrid network platform that wireless network and wired network export simultaneously.
As the present invention's further scheme: described terminal is desktop computer, notebook computer, panel computer or mobile phone.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention can be real-time the load balancing of the whole hybrid network of dynamic guarantee, effectively solve the problem such as " is busy how not busy " and " how busy congested ", ensure that important data normally can send in the network environment that complexity is congested, the packet loss problem that maximum deduction and exemption network congestion causes, this invention is applied in real life scene or business model, can Consumer's Experience be improved.
Accompanying drawing explanation
Fig. 1 is the hardware topology figure of hybrid network in the present invention.
Fig. 2 is the hierarchical structure schematic diagram of algorithm in the present invention.
Fig. 3 is schematic flow sheet of the present invention.
Embodiment
Be described in more detail below in conjunction with the technical scheme of embodiment to this patent.
Refer to Fig. 1-3, based on the load-balancing algorithm of priority under a kind of hybrid network, concrete steps are as follows:
1) monitor: monitor the summation (M of each slave network interface flow in Bonding by the miimon periodicity of function in Bonding link
1, M
2m
i);
2) priority divides: the priority level dividing host-host protocol, and wherein HTTP, FTP and P2P are Three Estate, and the flow (m of HTTP>FTP>P2P, each IP of periodic samples
1, m
2m
i) and the host-host protocol priority (L of each IP
1, L
2l
i);
3) samples storage data: be that Hash keys preserves above information in the Array for structural body of user side with IP, if weights are γ, network interface threshold value is N,
when
shi Qiyong adjustable strategies;
4) scheduling mechanism: to γ
icarry out quicksort, if γ
i> γ
j> γ
on k, so reduce γ
jand γ
kthe flow that place IP flows, ensures γ
iwhat place IP flowed transmits and receive data smoothly, when
time, adjustable strategies terminates.
Six kinds of algorithms have been achieved in current Bonding module, i.e. round robin algorithm (balance-rr), main algorithm (active-backup), XOR algorithm (balance-xor), flooding algorithm (broadcast), traffic load equalization algorithm (balance-tlb) and adaptability load-balancing algorithm (balance-alb), wherein the first five is planted algorithm and can only process the load balancing sending data, and last a kind of algorithm can process the load balancing transmitted and receive data.
The hardware of described hybrid network comprises server box 1, router two and terminal, two wired network adapter and wireless network card is provided with in described server box 1, in described server box 1, LinuxCentos system is housed, by configuration DHCP and DNS, the routing forwarding rule of amendment fire compartment wall and router two, start finger daemon and many network card bindings technology of AP certificate server, build an Ethernet access in radio, the hybrid network platform that wireless network and wired network export simultaneously, described terminal is desktop computer 3, notebook computer 4, panel computer 5 or mobile phone 6.
Under described hybrid network based on the central principle of the load-balancing algorithm of priority be: monitor each slave network interface flow summation in Bonding by the link monitoring periodicity of function in Bonding module, monitoring adopts all network interfaces in circulation Bonding, sampled by the short period, namely in the short period, each second calculates once each network interface traffic conditions, the maximum threshold of network interface work is repeatedly exceeded when finding that there is certain network interface flow and having within the cycle, just start the weighted value calculating this network interface, if weighted value is less than weight limit value, just judge this network interface high capacity, adjustable strategies is called in triggering, adjustable strategies can by IP flow current limliting corresponding in this network interface, and flow is shared in other the idle network interfaces in residue Bonding, the Multi-netmouth in whole Bonding equipment is made to realize receiving data load balance.
It is in the Array for structural body of Hash keys with IP that the information of user side IP is kept at one, the data length summation that last second, this user side received is recorded, both are subtracted each other the transmission speed obtaining user side current time by the data length summation that acquisition per second active user's termination receives in link monitoring function simultaneously.While record transmission speed, also to record the host-host protocol of IP, judge the priority of agreement, record priority L
iif adjustable strategies is triggered, just carry out weight calculation according to the data in overload IP array.
Network interface threshold value in the present invention considers the disposal ability of network interface card actual bandwidth, and setting network interface peak work capacity is close to theoretical maximum transfer speed; Short period sampling be when network traffics are very large often can due to CPU Schedule Interrupt cause current time from trawl performance to data be zero, the monitoring therefore adopting the method for short period sampling to avoid error in data to cause was lost efficacy; Weighted value is the importance of some HTTP considered in practical business and the non-essential setting weight calculation of P2P, and whether adjustable strategies is greater than weight limit value to determine whether according to the weighted value after calculating is carried out flow adjustment to network interface IP.
The adjustable strategies of the load-balancing algorithm based on priority under described hybrid network is as follows: first, n the user side transmitted in this load network interface is found from the Hash table that user side receives, owing to always having the very little test packet of flow between same network segment network interface in reception, on network interface transmission performance without impact, consider according to actual conditions, the minimum-rate of setting user side transfer of data is 8KB/s, lower than the user side IP flow Ignore All of this value, within n the user side not as adjustment; When n is 1, represents in this network interface and only have a user side carrying out transfer of data, define such user side IP stream and be defined as single large discharge, this situation does not need adjustment; Otherwise the IP of n user side stream is pressed the order sequence from big to small of present weight value, these user sides of recirculation IP flows, flow principle according to the optimum IP of selection farthest other network interfaces that each IP flow point is fitted in Bonding to be got on, the method of distributing adjustment sends ARP bag by the machine, allows user side upgrade the arp cache table information of oneself.
It is as follows that the optimum IP of described selection flows principle: when in user side without only circulation n-1 time during single maximum stream flow, otherwise with regard to circulation n time; The circulation of this user side is skipped next when user side is single maximum stream flow; Be discontented with when selecting optimum IP stream and be enough to lower 3 points, just skip this user side circulation next one; It is the lightest network interface of present load that optimum IP flows place network interface; Optimum IP can not be caused after user side IP flow point is fitted on new network interface to flow place network interface and to exceed load threshold, if exceed load threshold can not exceed weight limit value; The speed that user side IP flows is less than the network interface of high capacity and optimum network interface flow summation difference; When the optimum IP stream place network interface selected equals the network interface of high capacity, stop circulation immediately.
Based on the analysis of complexity of the load-balancing algorithm of priority under described hybrid network: mainly add based on the load-balancing algorithm of priority under hybrid network and periodically monitor all Bonding network interfaces, user side IP traffic statistics, weighted value calculate and dynamic conditioning load network interface four modules, the packet information of all user sides of renewal per second in periodicity monitoring module, searching user side time complexity is O (n).User side flow and protocol type statistics are just to single processing data packets, and its time complexity is O (1).Check that the time complexity of all network interfaces is O (n).When after triggering Tuning function, filter out the user side needing adjustment, time complexity is O (n), carry out each IP weighted value to calculate, time complexity is O (n), then can sort according to weighted value size to needing the user side of adjustment, sort algorithm adopts quicksort, time complexity is O (nlogn), finally by sorted IP stream migration to optimum network interface, time complexity is O (n), and new algorithm time complexity is O (n+1+n (n+n+nlogn+n))=Ο (n
2(3+logn)+n+1)=Ο (n
2logn).
The present invention is on traditional bonding algorithm basis, add cycle dynamics poll network interface, the data traffic of each IP of sampling and host-host protocol, weights are calculated according to uninterrupted and host-host protocol priority, the mechanism such as quicksort are carried out by weights, the uninterrupted of each IP of real-time monitoring, improve the throughput of server data transport and the utilance of network interface, realize the load balancing of Multi-netmouth in hybrid network, solve single network interface load in the hybrid network under bonding pattern overweight, thus cause the situation of whole network congestion, and the packet that guarantee user is important can be received and dispatched smoothly simultaneously.
The present invention can be applied to the hybrid network of cable network together with wireless network convergence, energy Real-time Obtaining network interface flow and host-host protocol, the effect of load balancing is reached according to uninterrupted and treaty override level quicksort network interface traffic prioritization, the load balancing of the real-time whole hybrid network of dynamic guarantee, the throughput of server transceiving data in hybrid network of effective raising Multi-netmouth, solve the problem such as " is busy how not busy " and " how busy congested ", ensure that important data normally can send in the network environment that complexity is congested, the packet loss problem that maximum deduction and exemption network congestion causes, this invention is applied in real life scene or business model, Consumer's Experience can be improved.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned execution mode, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (3)
1. under hybrid network based on a load-balancing algorithm for priority, it is characterized in that, concrete steps are as follows:
1) monitor: monitor the summation (M of each slave network interface flow in Bonding by the miimon periodicity of function in Bonding link
1, M
2m
i);
2) priority divides: the priority level dividing host-host protocol, and wherein HTTP, FTP and P2P are Three Estate, and the flow (m of HTTP>FTP>P2P, each IP of periodic samples
1, m
2m
i) and the host-host protocol priority (L of each IP
1, L
2l
i);
3) samples storage data: be that Hash keys preserves above information in the Array for structural body of user side with IP, if weights are γ, network interface threshold value is N,
when
shi Qiyong adjustable strategies;
4) scheduling mechanism: to γ
icarry out quicksort, if γ
i> γ
j> γ
k, so reduce γ
jand γ
kthe flow that place IP flows, ensures γ
iwhat place IP flowed transmits and receive data smoothly, when
time, adjustable strategies terminates.
2. under hybrid network according to claim 1 based on the load-balancing algorithm of priority, it is characterized in that, the hardware of described hybrid network comprises server box (1), router (2) and terminal, two wired network adapter and wireless network card is provided with in described server box (1), in described server box (1), LinuxCentos system is housed, by configuration DHCP and DNS, the routing forwarding rule of amendment fire compartment wall and router (2), start finger daemon and many network card bindings technology of AP certificate server, build an Ethernet access in radio, the hybrid network platform that wireless network and wired network export simultaneously.
3. according to the load-balancing algorithm based on priority under the arbitrary described hybrid network of claim 1-2, it is characterized in that, described terminal is desktop computer (3), notebook computer (4), panel computer (5) or mobile phone (6).
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| CN201510527054.8A CN105049368A (en) | 2015-08-25 | 2015-08-25 | Priority-based load balancing algorithm in hybrid network |
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| CN201510527054.8A CN105049368A (en) | 2015-08-25 | 2015-08-25 | Priority-based load balancing algorithm in hybrid network |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105516014A (en) * | 2016-01-07 | 2016-04-20 | 曾戟 | Campus battle platform load balancing method and device |
| CN106453682A (en) * | 2016-10-14 | 2017-02-22 | 国网重庆市电力公司电力科学研究院 | Link layer multichannel management method |
| CN106937332A (en) * | 2017-04-21 | 2017-07-07 | 上海斐讯数据通信技术有限公司 | A kind of load-balancing method and system based on wireless routing device mixing |
| CN107645454A (en) * | 2016-07-22 | 2018-01-30 | 中国电信股份有限公司 | Virtualization and mixed networking method and system, the load balancing device of legacy equipment |
| CN107911239A (en) * | 2017-11-13 | 2018-04-13 | 郑州云海信息技术有限公司 | A kind of network card binding schema management method and device |
| CN111124819A (en) * | 2019-12-10 | 2020-05-08 | 中国建设银行股份有限公司 | Method and device for monitoring full link |
| CN112333250A (en) * | 2020-10-26 | 2021-02-05 | 天津市城市规划设计研究总院有限公司 | Response method and system for Internet of things data packet in intelligent building |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101599897A (en) * | 2009-06-10 | 2009-12-09 | 南京邮电大学 | A kind of peer-to-peer network flow control methods that detects based on application layer |
| CN101610283A (en) * | 2009-07-17 | 2009-12-23 | 浪潮电子信息产业股份有限公司 | A kind of method of dynamically balancing received load under network card binding state |
| US8284780B2 (en) * | 2008-01-14 | 2012-10-09 | At&T Intellectual Property I, L.P. | Adaptive edge-implemented traffic policy in a data processing network |
-
2015
- 2015-08-25 CN CN201510527054.8A patent/CN105049368A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8284780B2 (en) * | 2008-01-14 | 2012-10-09 | At&T Intellectual Property I, L.P. | Adaptive edge-implemented traffic policy in a data processing network |
| CN101599897A (en) * | 2009-06-10 | 2009-12-09 | 南京邮电大学 | A kind of peer-to-peer network flow control methods that detects based on application layer |
| CN101610283A (en) * | 2009-07-17 | 2009-12-23 | 浪潮电子信息产业股份有限公司 | A kind of method of dynamically balancing received load under network card binding state |
Non-Patent Citations (3)
| Title |
|---|
| 幸福等: "Linux服务器下多网口负载均衡算法的研究", 《计算机工程与应用》 * |
| 彭玮琳: "基于Linux的网络流量监控技术研究", 《中国优秀硕士学位论文全文数据库》 * |
| 石磊: "多网卡bonding技术的研究与实现", 《中国优秀博硕士学位论文全文数据库 (硕士)》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105516014A (en) * | 2016-01-07 | 2016-04-20 | 曾戟 | Campus battle platform load balancing method and device |
| CN105516014B (en) * | 2016-01-07 | 2019-06-25 | 曾戟 | A kind of load-balancing method and device of campus battle platform |
| CN107645454A (en) * | 2016-07-22 | 2018-01-30 | 中国电信股份有限公司 | Virtualization and mixed networking method and system, the load balancing device of legacy equipment |
| CN107645454B (en) * | 2016-07-22 | 2020-03-20 | 中国电信股份有限公司 | Hybrid networking method and system of virtualization and traditional equipment and load sharing device |
| CN106453682A (en) * | 2016-10-14 | 2017-02-22 | 国网重庆市电力公司电力科学研究院 | Link layer multichannel management method |
| CN106937332A (en) * | 2017-04-21 | 2017-07-07 | 上海斐讯数据通信技术有限公司 | A kind of load-balancing method and system based on wireless routing device mixing |
| CN106937332B (en) * | 2017-04-21 | 2020-12-29 | 台州市吉吉知识产权运营有限公司 | Load balancing method and system based on wireless routing equipment mixing |
| CN107911239A (en) * | 2017-11-13 | 2018-04-13 | 郑州云海信息技术有限公司 | A kind of network card binding schema management method and device |
| CN111124819A (en) * | 2019-12-10 | 2020-05-08 | 中国建设银行股份有限公司 | Method and device for monitoring full link |
| CN111124819B (en) * | 2019-12-10 | 2023-09-22 | 中国建设银行股份有限公司 | Method and device for full link monitoring |
| CN112333250A (en) * | 2020-10-26 | 2021-02-05 | 天津市城市规划设计研究总院有限公司 | Response method and system for Internet of things data packet in intelligent building |
| CN112333250B (en) * | 2020-10-26 | 2022-03-01 | 天津市城市规划设计研究总院有限公司 | Response method and system for Internet of things data packet in intelligent building |
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Application publication date: 20151111 |