CN102025523A - Cross-virtual local area network multicast service processing method and device - Google Patents
Cross-virtual local area network multicast service processing method and device Download PDFInfo
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- CN102025523A CN102025523A CN2010106034639A CN201010603463A CN102025523A CN 102025523 A CN102025523 A CN 102025523A CN 2010106034639 A CN2010106034639 A CN 2010106034639A CN 201010603463 A CN201010603463 A CN 201010603463A CN 102025523 A CN102025523 A CN 102025523A
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- mapping relations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
Abstract
The invention discloses a cross-virtual local area network multicast service processing method and a device, and the method comprises the following steps: maintaining the mapping relationship between a source virtual local area network for providing multicast service and a destination virtual local area network for receiving the multicast service; and getting a mark of the virtual local area network in a multicast request message, getting the virtual local area network which needs to be added by reverse resolution according to address of a multicast group in the multicast request message, providing the multicast service if the matching between the mark of the virtual local area network and the source virtual local area network in the mapping relationship is successful and the matching between the virtual local area network which needs to be added and the destination virtual local area network in the mapping relationship is also successful, and discarding the message if the matching between the mark of the virtual local area network and the source virtual local area network in the mapping relationship fails or the matching between the virtual local area network which needs to be added and the destination virtual local area network in the mapping relationship fails. With the adoption of the method and the device, the safety of the networks can be improved.
Description
Technical field
The invention belongs to communication technical field, be specifically related to a kind of multicast service handling method and equipment of cross-VLAN.
Background technology
Along with broadband access technology and IPTV (Interactive Personality TV, the TV of personalized interaction) fast development of business, IPTV is also more and more higher to the requirement of access network, require access network equipment to support multicast service more flexibly on the one hand, consider the problem of network security on the other hand again.(IGMP tries to find out standard I GMP Snooping, IGMP:Internet Group Management Protocol, Internet Group Management Protocol) function only provides same VLAN (Virtual Local Area Network, VLAN) Nei multicast functionality, and the mode that most of operators adopt port to divide 802.1q VLAN is carried out user's isolation and location, therefore when implementing multicast, the user normally is among the different VLAN, if at this time also adopt standard I GMP Snooping, can cause each VLAN inside all will set up a multicast data flow, finally can't reach the effect of saving the network bandwidth; Adopt the travelling across VLAN multicasting technology then can address this problem well, Fig. 1 is the professional networking schematic diagram of IPTV, as shown in Figure 1, certain multicast program A is issued to DSLAM (Digital Subscriber Line Access Multiplexer from network side VLAN 2600, Digital Subscriber Line Access Multiplexer), DSLAM is that example is illustrated with ZXDSL9806 among the figure, for user 1 who belongs to VLAN 3601 and the user 2 who belongs to VLAN 3602, when their program request during program A, DSLAM will duplicate the data flow of program A to user 1 and user 2 from VLAN 2600.For program A, only there is a stream between DSLAM and the upper layer device always, so just reached the purpose of at utmost saving bandwidth.Therefore, realize that at access network the travelling across VLAN multicast is the requisite function of DSLAM or access node.
Present most access network equipment is all supported the travelling across VLAN multicasting technology, when the multicast protocol message of process user side, by the multicast group field in the message is carried out verification, counter parsing needs the M-VLAN that adds, thereby reaches the purpose of user side request travelling across VLAN multicast.But the deficiency of this processing mode is: the multicast request that allows any VLAN of user side to come exists certain hidden danger for network security.
Summary of the invention
Technical problem solved by the invention has been to provide a kind of multicast service handling method and equipment of cross-VLAN, provides fail safe in the multicast spanning virtual local area networks business procedure in order to raising.
A kind of multicast service handling method of cross-VLAN is provided in the embodiment of the invention, has comprised the steps:
Maintenance provides the mapping relations of the purpose VLAN of the source vlan of multicast service and receiving multicast business;
Obtain the VLAN ID VID in the multicast request message and parse the VLAN that desire adds multicast according to the multicast group address in the multicast request message is counter, if the source vlan of VID and mapping relations the match is successful and the VLAN of desire adding multicast and the purpose VLAN of mapping relations the match is successful, multicast service then is provided, if the source vlan of VID and mapping relations it fails to match or the VLAN of desire adding multicast and the purpose VLAN of mapping relations it fails to match, then with packet loss.
A kind of multicast service treatment facility of cross-VLAN is provided in the embodiment of the invention, has comprised:
The mapping relations module is used to safeguard the mapping relations of the purpose VLAN of source vlan that multicast service is provided and receiving multicast business;
Judge module, be used for obtaining the VID of multicast request message and parse the VLAN that desire adds multicast according to the multicast group address in the multicast request message is counter, if the source vlan of VID and mapping relations the match is successful and the VLAN of desire adding multicast and the purpose VLAN of mapping relations the match is successful, multicast service then is provided, if the source vlan of VID and mapping relations it fails to match or the VLAN of desire adding multicast and the purpose VLAN of mapping relations it fails to match, then with packet loss.
Beneficial effect of the present invention is as follows:
Because in the technical scheme that the embodiment of the invention provides, at first be the mapping relations of safeguarding the purpose VLAN of source vlan that multicast service is provided and receiving multicast business; VID in obtaining multicast request message and parse the VLAN that desire adds multicast then according to the multicast group address in the multicast request message is counter, if the source vlan of VID and mapping relations the match is successful and the VLAN of desire adding multicast and the purpose VLAN of mapping relations the match is successful, multicast service then is provided, if the source vlan of VID and mapping relations it fails to match or the VLAN of desire adding multicast and the purpose VLAN of mapping relations it fails to match, then with packet loss.Also be, access network equipment is when supporting the multicast protocol message of travelling across VLAN multicast process user side, all to carry out verification to the VID field of message and the M-VLAN that needs to add, rather than multicast request as allowing any VLAN of user side to come as the prior art, obviously, the technical scheme that provides of the embodiment of the invention fail safe that can improve network.
Description of drawings
Fig. 1 is the professional networking schematic diagram of IPTV in the background technology;
Fig. 2 is the multicast service handling method implementing procedure schematic diagram of cross-VLAN in the embodiment of the invention;
Fig. 3 is the multicast service handling method implementing procedure schematic diagram of the travelling across VLAN of ZXDSL 9806H access device in the embodiment of the invention;
Fig. 4 is the multicast service treatment facility structural representation of cross-VLAN in the embodiment of the invention.
Embodiment
The inventor notices in the invention process: present most access network equipment is all supported the travelling across VLAN multicasting technology, but, when the multicast protocol message of process user side, VID (VLAN ID) field to message is not carried out verification, but by the multicast group field in the message is carried out verification, instead parse the M-VLAN that need to add, thereby reach the purpose of user side request travelling across VLAN multicast.The multicast request that this processing mode allows any VLAN of user side to come, obviously, this processing mode exists certain hidden danger for network security.
The technical scheme that the embodiment of the invention provides is on the basis of travelling across VLAN multicast, carry out purposive verification by VID field to the multicast protocol message of user side, allow legal users VLAN to ask, and directly abandon, thereby realize controllable user multicast request management for illegal VLAN.Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
Fig. 2 is the multicast service handling method implementing procedure schematic diagram of cross-VLAN, as shown in the figure, comprises the steps:
In the enforcement, multicast request message can be the IGMP protocol massages.
In the enforcement, the IGMP protocol massages comprises report (report) message and/or leave (leaving) message.
In the enforcement, before matching judgment, can further include: start the travelling across VLAN multicast service.
Concrete, network equipment maintenance one Zhang Yuan's vlan list as the overall control table of verified users side multicast message VID field, is opened the travelling across VLAN multicast functionality to the mapping table of purpose vlan list simultaneously;
Then, the network equipment extracts user side IGMP protocol massages (comprising report and leave message), and VID in the message and the tabulation of mapping table source vlan are mated, and the match is successful then carries out purpose vlan list coupling, otherwise the request failure, packet loss;
Mate according to anti-M-VLAN and the mapping table purpose vlan list that parses the desire adding of the multicast group address in the message, the match is successful enters the multicast group request, otherwise the request failure, packet loss;
In the enforcement, when maintenance provides the mapping relations of purpose VLAN of the source vlan of multicast service and receiving multicast business, can safeguard the mapping relations of the purpose VLAN of source vlan that multicast service is provided and receiving multicast business for each user.
Concrete, under the condition that does not influence equipment performance, can also carry out the verification of the overall situation and port level for user side IGMP protocol massages simultaneously for each user safeguards a control table, the control of differentiation can further be arranged each user.
One commercially available can realize thereon that the network equipment of the present invention's (and related invention) embodiment is the ZXDSL 9806H access device of producing from ZTE Co., Ltd, below in conjunction with ZXDSL 9806H access device the specific embodiment of the present invention is described in further details, so that better understand enforcement of the present invention, be that example is because this equipment utilization is comparatively extensive with ZXDSL 9806H access device in force, this equipment can be used as small-sized DSLAM equipment, be the broadband integrated access platform of the low capacity Multi-Play business of future generation of main flow, so be example with ZXDSL 9806H access device here; But, in theory, the network equipment with other also is fine, as long as the source vlan that it can the maintenance customer is tabulated with the mapping relations of purpose VLAN, and obtain the VID in the multicast request message and parse the VLAN that desire adds multicast according to the multicast group address in the multicast request message is counter, and possess with the mapping relations tabulation in content carry out matching ratio judgement and both can.ZXDSL 9806H access device only is used to instruct those skilled in the art specifically how to implement the present invention, but do not mean and only can use this equipment of ZXDSL 9806H access device, in fact, all support the broadband access equipment of IGMP agreement, comprise ONU (Optical Network Unit, optical network unit), MDU (Multiple Dwelling Unit, multiuser residential unit), EOC (Ethernet over Coax, Ethernet data transmits by coaxial cable) etc. equipment can, can need come to determine corresponding network device in conjunction with practice in the implementation process.
With environment shown in Figure 1 is example, supposes multicast data flow A (multicast group IP is 224.1.1.1) that multicast server sends at VLAN 2600, for the VLAN of user 1 and user's 2 appointments is respectively 3601 and 3602; The 9806H equipment disposition is as follows:
1, creates M-VLAN 2600, multicast group 224.1.1.1;
2, adding user port 1,2 is the M-VLAN receiving port;
3, start the travelling across VLAN multicast, dispose overall VLAN mapping table T " 3601～3602to 2600 ";
4, user port 1 configuration VLAN mapping table T1 " 3601to 2600 ", user port 2 configuration VLAN mapping table T2 " 3602to 2600 ",
Fig. 3 is the multicast service handling method implementing procedure schematic diagram of the travelling across VLAN of ZXDSL 9806H access device, and as shown in the figure, when 9806H equipment was received the multicast request of 1 couple of multicast data flow A of user, handling process comprised the steps:
In this step, the source vlan among the VID in the multicast request message and mapping table T and the T1 is mated, the match is successful, enters step 305, otherwise withdraw from, packet loss.
In this step, carry out the multicast message process of analysis, parse the M-VLAN 2600 at multicast group 224.1.1.1 place, mate with purpose VLAN among mapping table T and the T1, the match is successful, enters step 307, otherwise withdraw from, packet loss.
In step 307,308, carry out the multicast protocol of standard according to above-mentioned judgement flow process and handle, allow or refusing user's 1 receiving group stream A.
By VLAN mapping table T, T1, the T2 of above 9806H equipment disposition, just can guarantee must walk VLAN 3601 and 3602 respectively from the multicast request that user 1 and user 2 come, can manage the multicast user better.
Based on same inventive concept, a kind of multicast service treatment facility of cross-VLAN also is provided in the embodiment of the invention, because the principle that this equipment is dealt with problems is similar to a kind of multicast service handling method of cross-VLAN, therefore the enforcement of this equipment can repeat part and repeat no more referring to the enforcement of method.
Fig. 4 is the multicast service treatment facility structural representation of cross-VLAN, as shown in the figure, can comprise in the equipment:
In the enforcement, judge module can also be further used for carrying out matching judgment according to the IGMP protocol massages.
In the enforcement, judge module can also be further used for carrying out matching judgment according to report message in the described IGMP protocol massages and/or leave message.
In the enforcement, the mapping relations module is further used for when maintenance provides the mapping relations of purpose VLAN of the source vlan of multicast service and receiving multicast business, safeguards the mapping relations of the purpose VLAN of source vlan that multicast service is provided and receiving multicast business for each user.
In the enforcement, judge module can also be further used for before matching judgment, starts the travelling across VLAN multicast service.
For the convenience of describing, the each several part of the above equipment is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
As seen from the above-described embodiment, in the technical scheme that the embodiment of the invention provides, at first be the mapping relations of safeguarding the purpose VLAN of source vlan that multicast service is provided and receiving multicast business; VID in obtaining multicast request message and parse the VLAN that desire adds multicast then according to the multicast group address in the multicast request message is counter, if the source vlan of VID and mapping relations the match is successful and the VLAN of desire adding multicast and the purpose VLAN of mapping relations the match is successful, multicast service then is provided, if the source vlan of VID and mapping relations it fails to match or the VLAN of desire adding multicast and the purpose VLAN of mapping relations it fails to match, then with packet loss.Also be, access network equipment is when supporting the multicast protocol message of travelling across VLAN multicast process user side, all to carry out verification to the VID field of message and the M-VLAN that needs to add, rather than multicast request as allowing any VLAN of user side to come as the prior art, obviously, the technical scheme that provides of the embodiment of the invention fail safe that can improve network.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the equipment of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises commander equipment, this commander equipment is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. the multicast service handling method of a cross-VLAN VLAN is characterized in that, comprises the steps:
Maintenance provides the mapping relations of the purpose VLAN of the source vlan of multicast service and receiving multicast business;
Obtain the VLAN ID VID in the multicast request message and parse the VLAN that desire adds multicast according to the multicast group address in the multicast request message is counter, if the source vlan of VID and mapping relations the match is successful and the VLAN of desire adding multicast and the purpose VLAN of mapping relations the match is successful, multicast service then is provided, if the source vlan of VID and mapping relations it fails to match or the VLAN of desire adding multicast and the purpose VLAN of mapping relations it fails to match, then with packet loss.
2. the method for claim 1 is characterized in that, described multicast request message is an Internet Group Management Protocol IGMP protocol massages.
3. method as claimed in claim 2 is characterized in that, described IGMP protocol massages comprises report report message and/or leaves the leave message.
4. the method for claim 1, it is characterized in that, when maintenance provides the mapping relations of purpose VLAN of the source vlan of multicast service and receiving multicast business, safeguard the mapping relations of the purpose VLAN of source vlan that multicast service is provided and receiving multicast business for each user.
5. as the arbitrary described method of claim 1 to 4, it is characterized in that, before matching judgment, further comprise:
Start the travelling across VLAN multicast service.
6. the multicast service treatment facility of a cross-VLAN is characterized in that, comprising:
The mapping relations module is used to safeguard the mapping relations of the purpose VLAN of source vlan that multicast service is provided and receiving multicast business;
Judge module, be used for obtaining the VID of multicast request message and parse the VLAN that desire adds multicast according to the multicast group address in the multicast request message is counter, if the source vlan of VID and mapping relations the match is successful and the VLAN of desire adding multicast and the purpose VLAN of mapping relations the match is successful, multicast service then is provided, if the source vlan of VID and mapping relations it fails to match or the VLAN of desire adding multicast and the purpose VLAN of mapping relations it fails to match, then with packet loss.
7. equipment as claimed in claim 6 is characterized in that, judge module is further used for carrying out matching judgment according to the IGMP protocol massages.
8. equipment as claimed in claim 7 is characterized in that, judge module is further used for carrying out matching judgment according to report message in the described IGMP protocol massages and/or leave message.
9. equipment as claimed in claim 6, it is characterized in that, the mapping relations module is further used for when maintenance provides the mapping relations of purpose VLAN of the source vlan of multicast service and receiving multicast business, safeguards the mapping relations of the purpose VLAN of source vlan that multicast service is provided and receiving multicast business for each user.
10. as the arbitrary described equipment of claim 6 to 9, it is characterized in that judge module is further used for before matching judgment, start the travelling across VLAN multicast service.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010603463.9A CN102025523B (en) | 2010-12-23 | 2010-12-23 | Cross-virtual local area network multicast service processing method and device |
| PCT/CN2011/075931 WO2012083655A1 (en) | 2010-12-23 | 2011-06-20 | Method and apparatus for processing cross-vlan multicast service |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010603463.9A CN102025523B (en) | 2010-12-23 | 2010-12-23 | Cross-virtual local area network multicast service processing method and device |
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| CN102025523A true CN102025523A (en) | 2011-04-20 |
| CN102025523B CN102025523B (en) | 2015-06-03 |
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| WO (1) | WO2012083655A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012083655A1 (en) * | 2010-12-23 | 2012-06-28 | 中兴通讯股份有限公司 | Method and apparatus for processing cross-vlan multicast service |
| WO2013060171A1 (en) * | 2011-10-25 | 2013-05-02 | 中兴通讯股份有限公司 | Method and apparatus for transmitting virtual local area network information |
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| CN100484055C (en) * | 2003-04-29 | 2009-04-29 | 华为技术有限公司 | Method for implementing multicast spanning VLAN |
| CN102025523B (en) * | 2010-12-23 | 2015-06-03 | 中兴通讯股份有限公司 | Cross-virtual local area network multicast service processing method and device |
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2010
- 2010-12-23 CN CN201010603463.9A patent/CN102025523B/en not_active Expired - Fee Related
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- 2011-06-20 WO PCT/CN2011/075931 patent/WO2012083655A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101083546A (en) * | 2007-07-18 | 2007-12-05 | 中兴通讯股份有限公司 | Multicasting management approach of switch equipment |
| CN101453399A (en) * | 2007-11-30 | 2009-06-10 | 华为技术有限公司 | Virtual network configuration, section switching method, apparatus and system |
| CN101478477A (en) * | 2008-12-01 | 2009-07-08 | 北京星网锐捷网络技术有限公司 | Multicast packet forwarding method and device |
| CN101771901A (en) * | 2008-12-31 | 2010-07-07 | 华为技术有限公司 | Method of multicast permission control in passive optical network, system and multi-dwelling unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2012083655A1 (en) * | 2010-12-23 | 2012-06-28 | 中兴通讯股份有限公司 | Method and apparatus for processing cross-vlan multicast service |
| WO2013060171A1 (en) * | 2011-10-25 | 2013-05-02 | 中兴通讯股份有限公司 | Method and apparatus for transmitting virtual local area network information |
Also Published As
| Publication number | Publication date |
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| CN102025523B (en) | 2015-06-03 |
| WO2012083655A1 (en) | 2012-06-28 |
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