CN104580066A - QoS (Quality of Service) implementation method of enterprise-level multimedia communication based on OpenFlow network - Google Patents
QoS (Quality of Service) implementation method of enterprise-level multimedia communication based on OpenFlow network Download PDFInfo
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- CN104580066A CN104580066A CN201310471295.6A CN201310471295A CN104580066A CN 104580066 A CN104580066 A CN 104580066A CN 201310471295 A CN201310471295 A CN 201310471295A CN 104580066 A CN104580066 A CN 104580066A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
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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
- H04L47/70—Admission control; Resource allocation
- H04L47/83—Admission control; Resource allocation based on usage prediction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
- H04L41/5019—Ensuring fulfilment of SLA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
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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
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/805—QOS or priority aware
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
Abstract
The invention relates to an implementation method of QoS (Quality of Service) in enterprise-level multimedia communication, in particular to a QoS (Quality of Service) implementation method of enterprise-level multimedia communication based on an OpenFlow network. According to the method, a plurality of service levels of enterprise-level multimedia applications based on SIP (Session Initiation Protocol) exchange are defined, and group control and management are performed on data streams of different service levels through a control plane separated from a network data network, so that the service quality on the aspects of network bandwidth, delay and the like is ensured for applications such as IP-based voice, videos and multimedia conferences.
Description
Technical field
The present invention relates to the implementation method of QoS in a kind of enterprise-level multimedia communication, particularly relate to a kind of QoS implementation method of the enterprise-level multimedia communication based on OpenFlow network.Thxe present method defines the grade of service of the multiple enterprise-level multimedia application based on SIP exchange, by carrying out grouping control and management from the control plane that network data plane is separated to the data flow of the different grade of service, for the application such as IP-based speech, video, multimedia conferencing provide the guarantee of the service quality such as the network bandwidth, delay.
Background technology
In recent years, along with appearance and the commercialization of multiple SIP switching system of increasing income, based on the enterprise-level multimedia application of SIP switch, such as IP phone, screen telephone, video conference etc., worldwide obtain applying more and more widely.These IP-based SIP multimedia services adopt computers or sip terminal access, and using simple, low-cost, is the multimedia application scheme of a low cost, and it is good to be particularly suitable for a network link basis, needs the enterprise-class tools of network office environment to use.
But these enterprise-level multimedia application are structured in traditional IP network, usually can only provide the service of best-effort type.The guarantee wanting to realize QoS in traditional IP network is not only very difficult, and usually need to be configured respectively each network equipment, not only increase the workload of network manager, and easily occur that allotting mistake causes network paralysis, almost do not have the solution of QoS to be adopted by reality so current.The service of this best-effort type is unobstructed under the abundant environment of Internet resources can meet the requirement of different multimedia application to performance, but, enterprise network is an office network, this on the net except based on except the multimedia application data flow of SIP also with other application data stream, such as accessed web page, download file, access Update Table storehouse record, data backup etc., operationally, network may block up very much, the service guarantees of best-effort rank cannot ensure the requirement of multimedia application to the network bandwidth and time delay when network congestion, cause these application service quality degradations even cannot use, have a strong impact on the efficiency of office.
OpenFlow is key technology Software Define Network (SDN) the next agreement of Next Generation Internet, is mainly used in the mutual communication of network data plane and the control plane be separated from each other in the network switch.Based in the network of OpenFlow, the controller of switch is separated with switch itself, a controller can control multiple switch, first data flow arrives controller, after the process of controller, pass to switch by OpenFlow agreement again carry out exchange process, thus achieve Comprehensive Control to whole network and management by controller.Dispose the IP multimedia application based on SIP in based on the enterprise network of OpenFlow, unified monitoring management can be carried out by the controller concentrated to Internet resources.But, because current OpenFlow agreement is not also to the support of QoS, directly the IP multimedia application based on SIP is deployed on OpenFlow network or the guarantee to QoS cannot be realized.
Abbreviation term
SIP Session Initiation Protocol session initiation protocol
QOS Quality of Service service quality
Summary of the invention
Technical problem to be solved:
For above deficiency, the invention provides the implementation method of a kind of QoS of the enterprise-level multimedia communication based on OpenFlow network, by the segmentation to Internet resources, different resource sheets is distributed to dissimilar data flow, thus the performance isolation achieved between different types of data stream, ensure that the service quality of different data streams.
The present invention to the support of QoS by expansion OpenFlow switch, is achieved and ensures the QoS of the IP multimedia application exchanged based on SIP in enterprise network.The present invention is applicable to the in-house network of enterprise, supports general OpenFlow switch.The all OpenFlow switch of network internal is managed by the control module concentrated, this control module concentrated is that keeper provides unified interface and comprehensively monitors network and manage, improve the utilization rate of Internet resources, decrease the probability of network system configuration error, reduce network management expense; By expanding the control module of OpenFlow switch to the support of QoS, achieving the flexile resource management of different types of data stream, ensure that the quality of service; By improving the control module of existing SIP switch, provide the collocation strategy of multiple QoS; The control module of OpenFlow switching stage control module and SIP switch carries out transmission and the renewal of qos policy by OpenFlow agreement, maintain the relatively independent of OpenFlow switch and SIP switch, be convenient to compatibility and the autgmentability of raising system.Simultaneously, the present invention by one end to end network performance appraising model network performance is estimated in real time, based on the network state that this is estimated, present invention also offers self adaptation and must flow flowcollector aggregation scheme FlowCollector to reduce the calculated load of controller, thus meet the requirement of large scale network to Centralized Controller performance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is in the embodiment of the present invention, describes a kind of schematic diagram of QOS implementation method of the enterprise-level multimedia communication based on OpenFlow network.
Fig. 2 is in the embodiment of the present invention, a kind of schematic diagram of network end-to-end performance estimation model.
Fig. 3 is in the embodiment of the present invention, a kind of schematic diagram of data flow polymerizer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
As shown in Figure 1, need to improve respectively SIP switch and OpenFlow switch based on the QoS implementation method of OpenFlow in enterprise-level SIP switch of the present invention; SIP switch segment needs in control section, increase qos policy and arranges module, for carrying out the configuration of QoS rank and parameter to the different IP multimedia application of this SIP switch support, QoS arranges interface and realizes based on web browser, can be carried out alternately (current version does not need to carry out alternately with SIP exchanger core) with SIP exchanger core by internal communication mechanism, and between OpenFlow switch Centralized Controller, be carried out the transmission of qos policy by OpenFlow agreement; OpenFlow switch segment needs in centralized control module, to increase QoS rule base, data flow polymerizer, flow controller, exchanges the modules such as queue management device.Wherein QoS rule base is for receiving the QoS rule sent from SIP switch, data flow polymerizer divides into groups to different data flow according to relevant QoS rule, flow controller carries out bandwidth statistics and management to different group data stream, different group data stream is mapped to different exchange queues according to QoS rule and processes by exchange queue management device, and the datum plane of switch does not need to improve.
The present invention adopts Confederal company to provide SIP SoftSwitch, and this switch provides one based on the comprehensive management platform of web browser.Original management platform comprises SIP parameter configuration module and user configuration module, and these parameters and user profile are stored in a database.The QoS configuration module increased provides one based on the user interface of web browser, can read relevant information, the information input variable of the configuration of the qos policy of minimizing from background data base, thus reduces the error rate of configuration.
The present invention supports general OpenFlow switch.May be provided with multiple stage OpenFlow switch in enterprise network, we adopt concentrated control module to carry out control and management to these switches.This control module concentrated is arranged on one independently on server, select different server configurations according to the switch quantity that network comprises, we advise that the network within 10 switches adopts Intel XEON CPU, 2G internal memory, 400G hard disk, the server of 1000M network interface card.
The centralized control software of OpenFlow switch is based on the NOX system development of increasing income.On NOX system, we achieve QoS rule base, support by source IP address, target ip address, port numbers, agreement, the data flow that QoS tier definition is different, and the qos parameter of support comprises the network bandwidth, time delay, and current control way selection.Flow-control module in centralized control software and queue management module constitute network end-to-end performance evaluation model (principle is shown in Fig. 2):
Bandwidth estimation principle is as follows: when new data stream needs to map, flow controller finds the set of streams type belonging to it according to data stream type, calculates by the heap(ed) capacity of comparing data stream group and the current volumeter that taken the requirement whether current ink bandwidth meets new data stream;
The time delay Computing Principle of network is as follows: suppose currently have 8 data streams to be mapped in different queues respectively, new data stream 9 arrives, its QoS grade is 6, it is mapped in queue 6 by we, network delay so for data flow 9 is exactly current queue 6, the time delay sum of all data flow in 7 and 8, in particular queue, the time delay of data flow is calculated by the maximum bandwidth process of this queue occupied bandwidth.The requirement whether current ink time delay meets data flow 9 is calculated by the time delay required by comparing data stream 9 and current time delay;
If current ink performance meets the demands, new data stream be mapped to the queue of its QoS ratings match in process.If current ink does not meet the demands, system may have in the queue be imbued with according to arranging data flow to throw away or be mapped to performance nearby to reduce packet loss.This Delay computation model avoids and carrys out this method of collection network time delay to the impact of offered load by sending test pack, and adding can treatable data traffic.
On this network performance estimation model, we additionally provide data flow polymerizer and dissimilar data flow are carried out packet aggregation (see schematic diagram 3).Data flow polymerizer is according to the set of streams QoS grade of different data flow being found to coupling, the resource of network carries out distributing and isolating according to set of streams, ensure that the service quality of different data streams group, reduce the computational load of Centralized Controller, improve the support to large scale network.According to the definition of qos policy, different data flow can be selected into whether going polymerization process with the performance improving system further.
QoS rule module in OpenFlow switch centralized control software is responsible for carrying out alternately with the QoS configuration module of SIP switch.Keeper carries out the configuration of qos policy by the QoS configuration module of SIP switching stage.Configure the QoS rule base also being passed to OpenFlow switch centralized control module while qos policy is stored in the built-in database of SIP switch by OpenFlow agreement.The present invention supports bidirectional inquiry and the renewal of QoS rule.Consider that qos policy may relate to the parameter of a large amount of SIP switch, qos policy configuration module is convenient to obtain relevant parameter to reduce the input variable of information as SIP switch end instead of OpenFlow switch end, reduce configuration error rate, maintain the relative independentability of SIP switch and OpenFlow switch simultaneously, improve the compatibility of whole system, stability and autgmentability.
The present invention is by improving general OpenFlow switch and SIP switch, the n-back test of the segmentation of the configuration of qos policy, Internet resources, the estimation of network performance and qos policy is carried out integrated, on the basis keeping SIP switch and OpenFlow switch function self as far as possible, achieve and the QoS of SIP multimedia application is ensured, for enterprise customer provides low cost, the multimedia application network environment of guaranteed qos.
Although the present invention with preferred embodiment openly as above; but they are not for limiting the present invention; anyly be familiar with this those skilled in the art; originally have in the spirit and scope of invention not departing from; can make various changes or retouch from working as, what therefore protection scope of the present invention should define with the claims of the application is as the criterion.
Claims (6)
1. the QoS implementation method based on the enterprise-level multimedia communication of OpenFlow network, it is characterized in that: the centralized control part comprising SIP switch QoS configuration section and OpenFlow switch, support that the multiple IP multimedia application exchanged based on SIP ensures with the QoS of conventional network application; The centralized control part of OpenFlow switch comprises QoS rule base, data flow polymerizer, flow controller, data flow swap table resources bank; The IP multimedia application based on SIP exchange supported comprises: screen meeting, IP phone, video request program and common database read business, web page access and data backup etc.
2. the QoS implementation method of a kind of enterprise-level multimedia communication based on OpenFlow network according to claim 1, it is characterized in that: the QoS configuration section of SIP switch is embedded in the management platform of SIP switch, the mode of web browser is adopted to realize, the configuration database of SIP switch can be read, mutual by the Centralized Controller of OpenFlow agreement and OpenFlow switch, support both-way communication pattern; Support multiple qos policy definition mode: source IP address, target ip address, port and QoS rank.
3. the QoS implementation method of a kind of enterprise-level multimedia communication based on OpenFlow network according to claim 1, it is characterized in that: the centralized control part of OpenFlow switch to be increased income network operating system exploitation based on NOX, supports general OpenFlow switch.The controller software of switch is arranged on general server, and the switch quantity controlled as required selects the configuration of server.
4. the QoS implementation method of a kind of enterprise-level multimedia communication based on OpenFlow network according to claim 1, it is characterized in that: dissimilar data flow is divided into different set of streams by the data flow polymerizer of the centralized control part of OpenFlow switch, distribute to different set of streams after being split by link circuit resource, thus achieve the performance isolation between various flows group.
5. the QoS implementation method of a kind of enterprise-level multimedia communication based on OpenFlow network according to claim 1, it is characterized in that: the centralized control part of OpenFlow switch provides the performance estimation model of a network end-to-end, this model mainly comprises data flow control and queue management device, by the bandwidth summation comparing data with existing stream in the maximum bandwidth of different queue and queue, data flow control judges whether this queue meets the bandwidth requirement of new data stream; Queue controller is mapped in the queue of coupling according to the QoS grade of new data stream, current time delay is estimated by cumulative all time delays being more than or equal to data flow in coupling queue number, and wherein the time delay of particular queue data flow is estimated divided by occupied bandwidth by this queue maximum bandwidth.
6. the QoS implementation method of a kind of enterprise-level multimedia communication based on OpenFlow network according to claim 1, it is characterized in that: the queue management device of the centralized control part of OpenFlow switch supports 8 priority queries, and data flow carries out static mappings by QoS ratings match mode; When network performance can not meet the requirement of new data stream, system can be selected packet loss according to configuration or lowly join mapping.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490962A (en) * | 2015-12-04 | 2016-04-13 | 哈尔滨工程大学 | QoS management method based on OpenFlow network |
| CN105610617A (en) * | 2015-12-29 | 2016-05-25 | 合肥工业大学 | QoS management mechanism for distinguishing user priorities in WLAN based on SDN and AP (Access Point) virtualization technique |
| CN106059960A (en) * | 2016-05-24 | 2016-10-26 | 北京交通大学 | Software defined network-based space network QoS guarantee method and management center |
| CN106803798A (en) * | 2017-03-06 | 2017-06-06 | 郑州云海信息技术有限公司 | Virtual switch QoS configuration management systems and Cloud Server under a kind of cloud platform |
| CN106856472A (en) * | 2015-12-09 | 2017-06-16 | 展讯通信（上海）有限公司 | Video call method, device and mobile terminal based on VoLTE |
| US10264035B2 (en) | 2016-02-23 | 2019-04-16 | At&T Intellectual Property I, L.P. | Method and apparatus for architecting multimedia conferencing services using SDN |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070230339A1 (en) * | 2006-04-03 | 2007-10-04 | Realtek Semiconductor Corp. | Network system capable of dynamically controlling data flow and its method |
| CN101119308A (en) * | 2007-08-21 | 2008-02-06 | 北京航空航天大学 | Routing device and method of wireless mobile self-organizing network of dynamic assurance service quality |
| CN101924781A (en) * | 2009-06-15 | 2010-12-22 | 日电（中国）有限公司 | Terminal equipment and QoS implementation method and flow classifier |
| CN102843300A (en) * | 2012-09-12 | 2012-12-26 | 盛科网络（苏州）有限公司 | Method and system for achieving controller load balance in Openflow switchboard system |
| CN103346922A (en) * | 2013-07-26 | 2013-10-09 | 电子科技大学 | Controller for determining network state based on SDN (Software Defined Networking) and determination method thereof |
| CN103347013A (en) * | 2013-06-21 | 2013-10-09 | 北京邮电大学 | OpenFlow network system and method for enhancing programmable capability |
-
2013
- 2013-10-11 CN CN201310471295.6A patent/CN104580066A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070230339A1 (en) * | 2006-04-03 | 2007-10-04 | Realtek Semiconductor Corp. | Network system capable of dynamically controlling data flow and its method |
| CN101119308A (en) * | 2007-08-21 | 2008-02-06 | 北京航空航天大学 | Routing device and method of wireless mobile self-organizing network of dynamic assurance service quality |
| CN101924781A (en) * | 2009-06-15 | 2010-12-22 | 日电（中国）有限公司 | Terminal equipment and QoS implementation method and flow classifier |
| CN102843300A (en) * | 2012-09-12 | 2012-12-26 | 盛科网络（苏州）有限公司 | Method and system for achieving controller load balance in Openflow switchboard system |
| CN103347013A (en) * | 2013-06-21 | 2013-10-09 | 北京邮电大学 | OpenFlow network system and method for enhancing programmable capability |
| CN103346922A (en) * | 2013-07-26 | 2013-10-09 | 电子科技大学 | Controller for determining network state based on SDN (Software Defined Networking) and determination method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 冯婧君: "《基于OpenFlow网络的Qos集中管理***的研究与实现》", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 赵生岗: "《IMS中QoS机制的研究与实现》", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490962A (en) * | 2015-12-04 | 2016-04-13 | 哈尔滨工程大学 | QoS management method based on OpenFlow network |
| CN105490962B (en) * | 2015-12-04 | 2018-10-26 | 哈尔滨工程大学 | A kind of QoS management methods based on OpenFlow networks |
| CN106856472A (en) * | 2015-12-09 | 2017-06-16 | 展讯通信（上海）有限公司 | Video call method, device and mobile terminal based on VoLTE |
| CN106856472B (en) * | 2015-12-09 | 2019-10-25 | 展讯通信（上海）有限公司 | Video call method, device and mobile terminal based on VoLTE |
| CN105610617A (en) * | 2015-12-29 | 2016-05-25 | 合肥工业大学 | QoS management mechanism for distinguishing user priorities in WLAN based on SDN and AP (Access Point) virtualization technique |
| US10264035B2 (en) | 2016-02-23 | 2019-04-16 | At&T Intellectual Property I, L.P. | Method and apparatus for architecting multimedia conferencing services using SDN |
| CN106059960A (en) * | 2016-05-24 | 2016-10-26 | 北京交通大学 | Software defined network-based space network QoS guarantee method and management center |
| CN106059960B (en) * | 2016-05-24 | 2019-06-04 | 北京交通大学 | A kind of spatial network QoS assurance and administrative center based on software defined network |
| CN106803798A (en) * | 2017-03-06 | 2017-06-06 | 郑州云海信息技术有限公司 | Virtual switch QoS configuration management systems and Cloud Server under a kind of cloud platform |
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