CN101145939A - Detection management method for private multicast server in broadband access network - Google Patents
Detection management method for private multicast server in broadband access network Download PDFInfo
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- CN101145939A CN101145939A CNA2006101541429A CN200610154142A CN101145939A CN 101145939 A CN101145939 A CN 101145939A CN A2006101541429 A CNA2006101541429 A CN A2006101541429A CN 200610154142 A CN200610154142 A CN 200610154142A CN 101145939 A CN101145939 A CN 101145939A
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Abstract
The invention discloses a detection and management method for illegal multicast servers in a broadband access network, relating to the communication field and resolving the prior problem of ineffectively managing the illegal multicast servers set up by user terminals. The method in the invention includes that a discovery strategy of illegal multicast servers is allocated on the convergent point broadband access server in the broadband access network; the discovery strategy of illegal multicast servers is applied to broadband access users; when the broadband access server receives the multicast source data flow of the broadband access users, the multicast data flow is intercepted to match the discovery strategy of illegal multicast servers, and the implementation of the actions related to the discovery of illegal multicast servers is accomplished according to the matching result of the discovery strategy of illegal multicast servers. The invention uses the management mode of realizing the discovery of illegal multicast servers based on the discovery strategy of illegal multicast servers, realizes the detection and control of discovering illegal multicast servers of terminal users of normal circuits and multicast broadband reliably, high efficiently and flexibly, and enhances the security of multicast broadband access network and the reliability of multicast service application.
Description
Technical field
The present invention relates to communication field, the method to the Service Management of user multicast data flow is provided in a kind of detection method that realizes group broadcast private server in the broadband access network and the BAS Broadband Access Server when providing towards broadband user's multicast service.
Background technology
The regulation of " network access server---the wideband network access server " formulated according to The Ministry of Information Industry of the People's Republic of China, MOII, general broadband network structure is according to Access Layer, convergence-level and backbone layer are divided.Place BAS Broadband Access Server in convergence-level and backbone layer, finish various access services the user.Being in the convergence-level BAS Broadband Access Server is that various wide band access users converge core node, is the tie that Access Layer and backbone layer are communicated with.In broadband access network, implement and dispose the multicast service function and be real-time jumbo broadband traffics such as realizing video and push the core and the basic bridge of wide-band terminal to.
General BAS Broadband Access Server when the multicast service networking is used as the limbic function node of PIM (protocol-independent pattern) network insert the user multicast management function of side realization towards multi-cast terminal based on IGMP (Internet Group Management Protocol), comprise the admittance control and management of various multicast channels and the distribution and the statistics of flux of multicast; Need realize maintenance management at network side with last attached device multicast router as the edge device of PIM (protocol-independent pattern) network based on the multicast routing table of PIMSM multicast routing protocols such as (protocol-independent sparse modes), and RP (point), the control and management of DR (Designated Router) multicast source server.When using based on the multicast service in the broadband access network, usually the multicast source server is implemented by operator as the business service point of departure of multicast service network and is managed, and because the big and professional video properties of multicast service flow, deployment to the multicast source server must be under the supervision and control of operator, this also is that multicast service can be runed, but can manage and very important precondition of commercialization and necessarily requiring.At present generally speaking, multicast server provides the part of multicast service as multicast service operator, when networking, all be placed on the network core layer, finally realize user's multicast service route and forwarding from the multicast source server to the multicast receiving terminal by multicast route network and multicast group management distributing network; If multi-cast terminal user or wide band access user are when being provided with the multicast source server privately, send multicast traffic stream from what user terminal can not stop to broadband network, like this under the network supervision rough sledding, these are set up multicast traffic stream illegally and will be received by other broadband access terminals user, bring the secure context problem for the wide-band terminal user, also can influence the normal multicast traffic stream of user simultaneously and receive processing; Do like this and also can take a large amount of broadband network bandwidth and network device processing resource, simultaneously, also can be affected to the multicast router equipment normal operation of converging with core network, also can't realize user multicast charging supervision as the core control point BAS Broadband Access Server of multicast broadband access network, so the user sets up the multicast source server illegally and gives multi-cast terminal, multicast router and broadband access network all can cause bigger harm, but badly influence the normal operation of broadband multicast service and whether the deployment of mass marketization implement.
Summary of the invention
In order to overcome above-mentioned defective, the object of the present invention is to provide a kind of detection management method that realizes group broadcast private server in the broadband access network, this method can customize the detection strategy to various multicast source servers flexibly, finds the multicast source server in the network in real time easily.
For achieving the above object, the present invention realizes the detection management method of group broadcast private server in the broadband access network, comprising:
(1) the private clothes of configuration multicast discovery strategy on the convergent point BAS Broadband Access Server of broadband access network;
(2) the private clothes of this multicast discovery strategy is applied to wide band access user;
Intercept this multicast traffic stream when (3) BAS Broadband Access Server receives the multicast source data flow of wide band access user and carry out the private clothes of multicast discovery strategy coupling, finish the execution that the private clothes of multicast are found relevant action according to the matching result of the private clothes of described multicast discovery strategy.
Wherein, the private clothes of multicast discovery strategy comprises in the described step (1): the configuration of the multicast source classification and Detection filtering function of Access Control List (ACL) is found the relevant configuration of carrying out action with the private clothes of multicast.
Wherein, described BAS Broadband Access Server comprises: the software processing module on bottom forwarding capability module and the CPU, wherein, the multicast source classification and Detection filtering function of described Access Control List (ACL) is finished by described bottom forwarding capability module, and the relevant execution action of the private clothes discovery of described multicast is finished by the software on the CPU.
Whether whether wherein, the private clothes of described multicast find that relevant execution action comprises: allow detected multicast source data are normally transmitted, the multicast source data are abandoned, whether need whether need to close associated user's access authority to the alarm subsystem alarm.
Wherein, the private clothes of described multicast find that the relevant multicast source private clothes discovery information of carrying out action is recorded in the private clothes of the multicast table of discovery, in the full back of the private clothes of this multicast table of discovery record the follow-up information that needs record are adopted and filter aging mode and upgrade.
Wherein, described bottom forwarding capability module detects when not using discovery strategy configuration of the private clothes of multicast or the Access Control List (ACL) BAS Broadband Access Server that it fails to match, and the multicast traffic stream that BAS Broadband Access Server is received carries out the forwarding processing of normal multicast route.
Wherein, in the described step (2), wide band access user comprises: circuit common and multicast wide-band terminal user.
Wherein, in the described step (3), when wide-band terminal user's multicast source data traffic is very big, described multicast traffic stream elder generation's transmitted to CPU speed limit and detect after carry out forward filtering by bottom forwarding capability module again.
Method of the present invention, in BAS Broadband Access Server, the mode of management is found in employing based on the private clothes of the private clothes of multicast discovery strategy realization multicast, can be reliable, efficiently and flexibly realize circuit common and multicast wide-band terminal user's private clothes are found to detect control, improve the fail safe and the multicast service reliability of applying of multicast broadband access network, find that in the multicast broadband access network, realizing the private clothes of multicast source management provides a kind of simple and effective implementation method.
Description of drawings
Fig. 1 is a multicast broadband access network hierarchical structure network topological diagram;
Fig. 2 is the on-premise network structure chart of multicast broadband access network at wide band access user and legal multicast server;
Fig. 3 implements group broadcast private server to find that the BAS Broadband Access Server of control and management realizes the structure chart based on tactful group broadcast private service discovery software organization.
Embodiment
The core concept of setting up multicast source server detection method in the realization broadband access network of the present invention illegally is: the aggregation node BAS Broadband Access Server of broadband access network because multicast traffic stream must be flowed through, by on BAS Broadband Access Server checkout equipment administration interface, disposing the various relevant detection strategy of multicast source server according to actual needs, the coupling multicast source detects strategy when BAS Broadband Access Server receives the multicast source data flow, the multicast traffic stream that meets the monitoring condition is write down and filters, and other multicast traffic streams are transmitted normally, the network manager can conveniently check the private clothes of multicast (unlicensed server) discovery record, also can customize the private clothes of multicast and find warning strategies, in time finish the multicast service security monitoring management.Adopt this method can navigate to each broadband access terminal user easily, comprise PPP dial user and IP access via telephone line user's multicast server setting, realize towards the monitoring management of each broadband multi-cast terminal user's multicast source authority not influencing under the situation that normal group multicast data circulation sends out.
Concrete grammar is as follows:
To connect the edge interface of the upper united mouth of multicast core backbone network as PIM (protocol-independent pattern) network in the multicast BAS Broadband Access Server, second line of a couplet mouth is as finishing multi-cast terminal user's access based on IGMP (Internet Group Management Protocol) multicast group control and management interface by the broadband two layer access net and converging.
At first to dispose the strategy of the private clothes discovery of multicast source of BAS Broadband Access Server by the management maintenance platform, the private clothes of multicast discovery strategy mainly comprises: the private clothes of multicast source categorical filtering function and multicast based on ACL (Access Control List (ACL)) are found relevant execution action, these are carried out action and comprise whether allowing detected multicast source data are normally transmitted, whether need the turnkey console alarm, whether need to close associated user's access authority.After finishing the configuration of the private clothes of multicast discovery strategy, as required, can use the private clothes of the multicast discovery strategy that configures based on circuit and multicast broadband user, what the private clothes of these multicasts discovery strategy can be instant simultaneously comes into force.
Like this, BAS Broadband Access Server is when receiving the multicast source data flow, at first detect and whether disposed the private clothes of multicast discovery strategy, carry out ACL (Access Control List (ACL)) coupling in the multicast source strategy according to the source IP in the multicast message and purpose IP address then, carry out action for the multicast traffic stream of coupling according to definition in the strategy and finish alarm, multicast packet abandons with relevant multicast user's business and closes, to PPP, the IP wide band access user is deleted the user and is forced to roll off the production line, all data flow forwarding processing under this circuit are then closed in access to private wire circuit, the private clothes information of the multicast source of will being correlated with simultaneously is recorded in the private clothes of the multicast table of discovery, the private clothes of multicast table of discovery can be checked for the keeper, the size of the private clothes of multicast table of discovery is according to the memory capacity definition of concrete equipment, the full back of record to follow-up need recorded information can the covering table in the oldest record replace aging, avoid the information reprocessing, consume CPU and handle resource.Carrying out normal multicast routing forwarding for the multicast traffic stream of not using multicast source private clothes discovery strategy or coupling ACL (Access Control List (ACL)) failure handles.
Realize that based on the private clothes of multicast discovery strategy the mode that the private clothes of multicast source are found relates generally to two software function entities on BAS Broadband Access Server: one is the configuration management of the private clothes of multicast source discovery strategy, comprised according to the network practical operation situation customizing the private clothes of various multicasts discovery strategy, private clothes discovery strategy and circuit and multicast user's binding is used; Another is that the private clothes of the multicast discovery strategy inspection of multicast traffic stream is moved with relevant execution.General BAS Broadband Access Server all comprises the software processing module on bottom forwarding capability module and the CPU; find detection efficiency in order to improve the private clothes of multicast; strategy inspection is finished by the bottom forwarding module; relevant execution action is gone up software module by CPU and is finished; consider the transmission characteristics of the continuously big flow of multicast traffic stream simultaneously; for fear of delivering to CPU on the too much multicast traffic stream; increase the processing load of CPU, bottom forward filtering mode is protected and is reduced CPU and takies resource after can and detecting by multicast traffic stream transmitted to CPU speed limit.
As shown in Figure 3, the BAS Broadband Access Server of implementing the private clothes discovery of multicast control and management is realized finding software organization's structure based on the private clothes of tactful multicast.Mainly comprise discovery strategy configuration of the private clothes of multicast and multi-cast business data transmit stage, relate to the configuration management of multicast private clothes discovery strategy, the private clothes of multicast are found interoperability between control and management and the several software modules of bottom multicast traffic stream forwarding control.The private clothes of the multicast service of BAS Broadband Access Server find that subsystem mainly comprises following components: the configuration management of multicast private clothes discovery strategy, the private clothes of multicast are found control and management and bottom multicast traffic stream forwarding control.Configuration and control and treatment flow process that the private clothes of multicast source are found are as follows:
(1) at first on the administration interface of BAS Broadband Access Server, creates the private clothes of multicast source discovery strategy;
(2) the private clothes of the relevant multicast source of configuration detect and filter ACL under the private clothes of the new multicast of creating discovery strategy, dispose the relevant control and management action of this ACL simultaneously, comprise alarm, and multicast traffic stream abandons with business function and closes;
(3) detect at needs and use this private clothes discovery strategy under the circuit of monitoring and the multicast user, to on the circuit and the configuration management of the private clothes of multicast user's application strategy multicast of having reached the standard grade discovery strategy directly notify bottom multicast traffic stream forwarding module, multicast user's application strategy notifies bottom to transmit policy configurations when customer call is reached the standard grade to reaching the standard grade;
(4) when receiving multicast traffic stream, the bottom forwarding module at first detects whether abandon this multicast traffic stream, if do not abandon then check whether dispose the private clothes of multicast source discovery strategy, if do not dispose then normally forwarding, otherwise check earlier whether the private clothes discovery of multicast filter table detected, if not then detect the private clothes of multicast discovery strategy, the private clothes of the multicast of the multicast traffic stream transmitted to CPU of coupling are found control and management, unmatched normal forwarding;
(5) the private clothes of multicast find behind the multicast traffic stream that control and management receives that according to the policy definition relevant action, notice bottom forwarding module abandons, or alarm, or closes related service; With the circuit information of multicast traffic stream, reference records such as multicast ip address information and time are found to check for the network manager in the record sheet at the private clothes of multicast simultaneously.
From top explanation as can be seen, in BAS Broadband Access Server, the mode of management is found in employing based on the private clothes of the private clothes of multicast discovery strategy realization multicast, can be reliable, efficiently and flexibly realize circuit common and multicast wide-band terminal user's private clothes are found to detect control, improve the fail safe and the multicast service reliability of applying of multicast broadband access network, find that in the multicast broadband access network, realizing the private clothes of multicast source management provides a kind of simple and effective implementation method.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technique scheme:
Shown in Figure 1 is typical multicast broadband access network hierarchical structure network topological diagram.The multicast broadband access network is by backbone layer, and convergence-level and Access Layer constitute.Broadband user's authentication is authorized and charging is finished by BAS Broadband Access Server, and BAS Broadband Access Server is connected to multicast router on the backbone network by two trunk link.
That shown in Figure 2 is the on-premise network figure of multicast broadband access network at wide band access user and legal multicast server: number in the figure (1), (2), (3) the line forwarding flow of multicast traffic stream on BAS Broadband Access Server of representing legal multicast server to, (4), (5) line is represented the flow direction of the multicast data flow of the multicast server transmission that the wide-band terminal user sets up illegally.
Disposed multicast broadband P PP access account user aaa@stb by name on the BAS Broadband Access Server, this user's multi-cast terminal devices set-top box is linked in the BAS Broadband Access Server by the PPP dial mode, the PC that can send multicast traffic stream that this user will set up illegally is linked in the networking, broadband by set-top box, and the multicast traffic stream address that this PC sends is 224.1.1.100; Network side at BAS Broadband Access Server has also inserted a legal multicast source server, and this multicast traffic stream address is 224.1.1.10.
Be the handling process that the private clothes of example explanation multicast are found with this aaa@stb user below:
The keeper disposes the private clothes of multicast discovery strategy on BAS Broadband Access Server, acl is the IP bag of 224.0.1.0 to 224.0.1.100 for the coupling destination address, and coupling is carried out action and is alarm and packet discard.
The keeper uses this private clothes discovery strategy under this PPP user account number aaa@stb, also use this strategy simultaneously on legal multicast server place in circuit.Set-top box is after the PPP dial-up access is reached the standard grade, and the multicast service configuration management should be transmitted by private clothes discovery strategy notice bottom.
The user will set up multicast server illegally and be linked in the broadband network, send illegal multicast traffic stream by set-top box to broadband network; The legal multicast server of network side also sends multicast data flow to BAS Broadband Access Server.
BAS Broadband Access Server detects after user side receives illegal multicast traffic stream transmits switch for opening, tactful in source address and matching destination address ACL according to configuration private clothes subsequently, obtains matching result for alarming and abandon, transmitted to CPU group of notifications Broadcast Control tubulation reason.
The multicast control and management is alarmed to turnkey console according to matching result, and the notice bottom is transmitted and closed the multicast forwarding function, and simultaneously with multicast address, circuit information and PPP information are recorded in the private clothes of the multicast table of discovery.And the private clothes of notice bottom forwarding carrying out multicast are found to filter.
Equally carry out ACL with user side and check when receiving the legal multicast traffic stream of network side, do not match continuous item, bottom carries out normal flow and transmits and handle afterwards.
The follow-up multicast forwarding switch of searching when receiving the illegal multicast traffic stream of user side is not transmitted, and then abandons relevant multicast packet.The data flow of the multicast server set up illegally of user just can't be scattered in broadband network by BAS Broadband Access Server like this, the network manager is after finding alarm, find that by checking the private clothes of multicast record can navigate to this final terminal equipment set-top box according to circuit and source IP address, has realized the management of group broadcast private server.
Employing can be flexible based on the private clothes of the BAS Broadband Access Server multicast discovery technique of the private clothes of multicast discovery strategy, efficient and realize in the multicast broadband access network control and management function reliably to multicast source, can realize circuit and PPP, the private clothes of multicast are found under the IP broadband access method, simultaneously by detecting and moving in conjunction with multiple execution flexibly, offer the convenient, flexible management control mode of keeper, adopt the speed limit and the strobe utility of bottom, avoided the private clothes of multicast to find the processing load that brings to BAS Broadband Access Server, realize and to run for multicast service, can manage and the marketization has been cleared away an important screen-like mountain peak and hindered.
Claims (8)
1. the detection management method of group broadcast private server in the realization broadband access network is characterized in that, comprising:
(1) the private clothes of configuration multicast discovery strategy on the convergent point BAS Broadband Access Server of broadband access network;
(2) the private clothes of this multicast discovery strategy is applied to wide band access user;
Intercept this multicast traffic stream when (3) BAS Broadband Access Server receives the multicast source data flow of wide band access user and carry out the private clothes of multicast discovery strategy coupling, finish the execution that the private clothes of multicast are found relevant action according to the matching result of the private clothes of described multicast discovery strategy.
2. the detection management method of group broadcast private server in the realization broadband access network as claimed in claim 1, it is characterized in that the private clothes of multicast discovery strategy comprises in the described step (1): filter with the private clothes of multicast based on the multicast source classification and Detection of Access Control List (ACL) and find relevant execution action.
3. the detection management method of group broadcast private server in the realization broadband access network as claimed in claim 2, it is characterized in that, described BAS Broadband Access Server comprises: the software processing module on bottom forwarding capability module and the CPU, wherein, described multicast source classification and Detection filtering function based on Access Control List (ACL) is finished by described bottom forwarding capability module, and the relevant execution action of the private clothes discovery of described multicast is finished by the software on the CPU.
4. as the detection management method of group broadcast private server in claim 2 or the 3 described realization broadband access networks, it is characterized in that, whether the private clothes of described multicast find that relevant execution action comprises: allow detected multicast source data are normally transmitted, whether the multicast source data are abandoned, whether need whether need to close associated user's access authority to the alarm subsystem alarm.
5. the detection management method of group broadcast private server in the realization broadband access network as claimed in claim 4, it is characterized in that, the private clothes of described multicast find that the relevant private clothes discovery of the multicast source as a result information of carrying out action is recorded in the private clothes of the multicast table of discovery, in the full back of the private clothes of this multicast table of discovery record the follow-up information that needs record are adopted and filter aging mode and upgrade.
6. the detection management method of group broadcast private server in the realization broadband access network as claimed in claim 3, it is characterized in that, described bottom forwarding capability module detects when not using discovery strategy configuration of the private clothes of multicast or the Access Control List (ACL) BAS Broadband Access Server that it fails to match, and the multicast traffic stream that BAS Broadband Access Server is received carries out the forwarding processing of normal multicast route.
7. the detection management method of group broadcast private server is characterized in that in the realization broadband access network as claimed in claim 1, and in the described step (2), wide band access user comprises: circuit common and multicast wide-band terminal user.
8. the detection management method of group broadcast private server in the realization broadband access network as claimed in claim 1, it is characterized in that, in the described step (3), when wide-band terminal user's multicast source data traffic is very big, described multicast traffic stream elder generation's transmitted to CPU speed limit and detect after carry out forward filtering by bottom forwarding capability module again.
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| CNA2006101541429A CN101145939A (en) | 2006-09-13 | 2006-09-13 | Detection management method for private multicast server in broadband access network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330409B (en) * | 2008-08-01 | 2010-11-10 | 杭州华三通信技术有限公司 | Method and system for detecting network loophole |
| CN112636974A (en) * | 2020-12-22 | 2021-04-09 | 安徽飞凯电子技术有限公司 | Communication equipment intelligent supervision system based on big data |
-
2006
- 2006-09-13 CN CNA2006101541429A patent/CN101145939A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101330409B (en) * | 2008-08-01 | 2010-11-10 | 杭州华三通信技术有限公司 | Method and system for detecting network loophole |
| CN112636974A (en) * | 2020-12-22 | 2021-04-09 | 安徽飞凯电子技术有限公司 | Communication equipment intelligent supervision system based on big data |
| CN112636974B (en) * | 2020-12-22 | 2022-08-02 | 安徽飞凯电子技术有限公司 | Communication equipment intelligent supervision system based on big data |
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Open date: 20080319 |