CN102104528A - Network system applied in rural area and service message transmission method - Google Patents
Network system applied in rural area and service message transmission method Download PDFInfo
- Publication number
- CN102104528A CN102104528A CN2009102593689A CN200910259368A CN102104528A CN 102104528 A CN102104528 A CN 102104528A CN 2009102593689 A CN2009102593689 A CN 2009102593689A CN 200910259368 A CN200910259368 A CN 200910259368A CN 102104528 A CN102104528 A CN 102104528A
- Authority
- CN
- China
- Prior art keywords
- service message
- switch
- convergence switch
- area network
- local area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention relates to the field of network communication. In order to solve the problems of high network construction cost and network performance degradation due to too many network layers during building a multimedia service access network in a sparsely populated rural area, the invention provides a network system applied in the rural area and a service message transmission method. The service message transmission method mainly comprises the following steps of: replacing virtual local area network labels of a user interface with target virtual local area network labels by access switchboards according to a preset mapping relation; and packaging service messages output by all the access switchboards in a next network with the corresponding outer-layer virtual local area network labels by a second-stage gathering switchboard according to a preset rule and forwarding to a BRAS (Broadband Remote Access Server) to realize service access. The network system and the service message transmission method have the advantages that: high-quality triple play service transmission can be realized only by configuring village node switchboards with relative low performance in a user access node area, thereby the network construction cost is reduced.
Description
Technical field
The present invention relates to network communication field, particularly about a kind of network system of rural area and transfer approach of service message of being applied to.
Background technology
IPTV (Internet Protocol Television, IPTV) technology realizes that the transmission of TV programme is present emerging a kind of TV programme load mode, promptly utilize IP network to replace the coaxial hybrid network of traditional fiber (Hybrid Fiber-Coaxial, HFC), realize HDTV (High-Definition Television), interactive TV, time delay TV and unification of three nets (Triple Play) that traditional hfc plant is difficult to realize, i.e. value-added services such as voice, data and Digital Television.
Present existing IPTV business realizing is all in densely populated urban area, and mainly is the network of some experiment types, do not form the application of scale for the vast rural area of China, do not adapt to the characteristics that Chinese countryside is vast in territory, family disperses.
Prior art one, some operators (ISP) adopt the access way of ADSL (Asymmetric Digital Subscriber Line) (ADSL) to realize the access of IPTV business at present, with the data medium of adsl line as the long-range access of user, the IPTV group business stream is forwarded to the ISP network from IPTV service source end, copy to metropolitan area network business router (SR) by multicast router, SR is according to the different convergence switches of Internet igmpinternet (IGMP) identification and finish the multicast that the SR multicast service flows to convergence switch and issue, convergence switch with the IPTV group business stream directly in VLAN multicast forwarding to digital subscriber line access multiplex (DSLAM), this is transmitted based on IGMP triage techniques (IGMP Snooping), the subscriber computer top box receives group business stream by the DSLAM terminal, set-top box is carried out video decode, thereby makes the user obtain video frequency program.
But the prior art has the following disadvantages in rural area scarcely populated, economics of underdevelopment: the one, in economically less developed region communications infrastructure weakness, PSTN (Public Switched Telephone Network is not finished in a lot of areas so far as yet, PSTN) construction does not more possess the high speed adsl line that can carry the professional larger data amount of IPTV; The 2nd, ADSL system end equipment normally frame intensive goes out line style equipment, for the remote application scenarios that transmits of scarcely populated needs, access device can not be placed on the position near the user flexibly, and signal, maintenance, track investment etc. all are not satisfy this application scenarios requirement; The 3rd, ADSL is subjected to technology limitation, and limited bandwidth and up-downgoing are asymmetric, value-added services such as follow-up very difficult realization HDTV (High-Definition Television), Triple Play.
Prior art two goes up by IGMP Snooping technology at Ethernet (Ethernet) and realizes simple T riple Play business.Data medium is an ethernet link, and terminals (for example computer, set-top box, IP phone etc.) different in the subscriber household are received respectively on the different port of access switch.The IPTV group business stream is forwarded to the ISP network from IPTV service source end, copy to metropolitan area network business router (SR) by multicast router, SR is according to the different convergence switches of Internet igmpinternet (IGMP) identification and finish the multicast that the SR multicast service flows to convergence switch and issue, convergence switch will send to access switch by the multicast forwarding mode based on IGMP Snooping from the IPTV group business stream that SR receives, access switch is issued to set-top box among the same VLAN to multicast message, after set-top box was carried out video decode, the user promptly obtained video frequency program.
The deficiency of the prior art is that it is long to be not suitable for transmitting range owing to use two layers of Ethernet that converges (flattening), the rural area that access point disperses; The service terminal that the domestic consumer is different (computer, set-top box, IP phone etc.) inserts a plurality of access interface that will take access switch, if the user in certain village is more, can need a plurality of access switch so that enough access interface to be provided, thereby also need a plurality of convergence switches, cause the waste of cable and port resource.
Summary of the invention
The embodiment of the invention provides a kind of network system of rural area and transfer approach of service message of being applied to, and is used for solving prior art and arranges net in that the rural area is scarcely populated, causes the too high problem of networking cost owing to network layer is indeterminate.
The embodiment of the invention has proposed a kind of network system that is applied to the rural area in order to solve above technical problem, and this system comprises:
Home gateway, dispose a plurality of ethernet ports, different business inserts the different port of described home gateway respectively, described home gateway sends to user's access switch with different virtual local area network tags on the different business message identification of described user terminal initiation, and discern the virtual local area network tags of the service message that described user's access switch returns, send described service message to relevant user terminals;
User's access switch, be used to converge the service message of the subscriber household gateway in the appointed area, carry out bi-directional conversion between the virtual LAN VLAN label of the service message of the port of different user terminals being transmitted according to default mapping relations and the target virtual local area network tags;
First order convergence switch converges the service message that receives all user's access switch outputs in first presumptive area, is transmitted to second level convergence switch, receives the service message that second convergence switch issues simultaneously and returns to the relative users access switch;
Second level convergence switch, be used to converge the service message of all first order convergence switch outputs in second presumptive area, on original virtual LAN VLAN label basis, encapsulate corresponding outer virtual local area network tags according to preset rules, outer layer label according to message sends described service message to Broadband Remote Access Server BRAS or business router SR respectively, and receiving the service message that described BRAS or SR return, the service message that will have an outer virtual local area network tags is separated to be honored as a queen and is handed down to corresponding first order convergence switch.
According to another further aspect of the described system of the embodiment of the invention, a plurality of ethernet ports of described home gateway are assigned different priorities, and described home gateway is according to the flow of the different ethernet ports of priority assignment.
Another further aspect according to the described system of the embodiment of the invention, described user terminal comprises: interactive internet protocol television (IPTV) set top box (STB), networking telephone VoIP terminal, computer, the different business message of described initiation comprises: the IPTV service message that the IPTV set-top box is initiated, the VoIP service message that the VoIP terminal is initiated, the Internet service message that computer is initiated.
Another further aspect according to the described system of the embodiment of the invention, between described second level convergence switch and described BRAS or SR, also comprise, third level convergence switch, be used to converge the service message of all second level convergence switch outputs in the 3rd presumptive area, send described BRAS or SR to, and receive the service message that described BRAS or SR return, this service message is sent to corresponding second level convergence switch.
According to another further aspect of the described system of the embodiment of the invention, described first presumptive area is meant, the territorial scope at least one village; Described second presumptive area is meant, the territorial scope at least one township, and the territorial scope in a wherein said township has comprised the territorial scope at least one village; Described the 3rd presumptive area is meant, the territorial scope at least one county, and the territorial scope in a wherein said county has comprised the territorial scope at least one township.
According to another further aspect of the described system of the embodiment of the invention, adopt optical fiber to communicate between described access switch and the first order convergence switch, adopt optical fiber to communicate between described first order convergence switch and the second level convergence switch.
Another further aspect according to the described system of the embodiment of the invention, described access switch is connected with optical fiber between the first order convergence switch and adopts optical interface, and described first order convergence switch is connected the employing optical interface with optical fiber between the convergence switch of the second level.
According to another further aspect of the described system of the embodiment of the invention, adopt the ethernet standard category-5 cable to communicate between described access switch and the home gateway.
The embodiment of the invention has also proposed a kind of service message uplink method that is applied to the rural area network in order to solve above technical problem, and this method comprises:
Different virtual local area network tags on the different business message identification of user terminal initiation is sent to user's access switch;
Access switch replaces with target virtual local area network tags with different user terminals with the virtual local area network tags in the service message of crossing the home gateway submission according to default mapping relations;
First order convergence switch is transmitted to second level convergence switch with the service message of all access switch outputs in first presumptive area;
Described second level convergence switch converges the service message of all described first order convergence switch outputs in one second presumptive area, on original virtual LAN VLAN label basis, encapsulate corresponding outer virtual local area network tags according to preset rules, send described service message to Broadband Remote Access Server BRAS or business router SR respectively according to the outer layer label of message.
A further aspect according to the described method of the embodiment of the invention, replace with in the target virtual local area network tags according to the virtual local area network tags of mapping relations with the service message of different user terminals at access switch, the target virtual local area network tags is meant the virtual local area network tags in order to the service message of distinguishing different user terminals.
Another further aspect according to the described method of the embodiment of the invention, also comprise after described second level convergence switch converges the service message of all described first order convergence switch outputs in second presumptive area: the service message after described second level convergence switch will converge sends third level convergence switch to, described third level convergence switch converges the service message of all described second level convergence switch outputs in the 3rd presumptive area, sends the service message after converging to Broadband Remote Access Server or business router.
According to another further aspect of the described method of the embodiment of the invention, described first subscribes the zone is meant the territorial scope at least one village; Described second presumptive area is meant, the territorial scope at least one township, and the territorial scope in a wherein said township has comprised the territorial scope at least one village; Described the 3rd presumptive area is meant, the territorial scope at least one county, and the territorial scope in a wherein said county has comprised the territorial scope at least one township.
The embodiment of the invention has also proposed a kind of service message down method that is applied to the rural area network in order to solve above technical problem, and this method comprises:
Second level convergence switch receives the service message that described BRAS or SR return, and the service message that will have an outer virtual local area network tags is separated to be honored as a queen and is handed down to corresponding first order convergence switch;
Described first order convergence switch receives the service message that described second convergence switch issues, and returns to the relative users access switch;
Described access switch replaces with the virtual local area network tags of relative users home gateway port according to mapping relations with the target virtual local area network tags of described service message, and message is transmitted to home gateway;
Described home gateway sends to described port corresponding user terminal according to virtual local area network tags with described service message.
The beneficial effect of the embodiment of the invention is, by in certain zone the relatively low village's node switch of performance being set, has saved the networking expense; And, user's set-top box can be duplicated, the multicast message that comes the reception sources end to send by the travelling across VLAN of higher level's network equipment to multicast message by outside VLAN label in the VLAN service message encapsulation of giving each user terminal on the township level node switch.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Figure 1 shows that a kind of rural area network architecture schematic diagram that is applied to of the embodiment of the invention;
Figure 2 shows that a kind of service message uplink method flow chart that is applied to the rural area network of the embodiment of the invention;
Figure 3 shows that a kind of service message down method flow chart that is applied to the rural area network of the embodiment of the invention;
Figure 4 shows that the manage business embodiment flow chart of message of system of the present invention home gateway;
Figure 5 shows that the manage business embodiment flow chart of message of system of the present invention access switch;
Figure 6 shows that the embodiment flow chart of system of the present invention first order convergence switch (village's node switch) message of managing business;
Another example structure schematic diagram of system of the present invention shown in Figure 7;
Another example structure schematic diagram of system of the present invention shown in Figure 8.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Be illustrated in figure 1 as a kind of rural area network architecture schematic diagram that is applied to of the embodiment of the invention.
Comprise home gateway 101, this home gateway has disposed a plurality of ethernet ports, different business inserts the different port of described home gateway respectively, described home gateway sends to user's access switch with different virtual local area network tags on the different business message identification of described user terminal initiation, and discern the virtual local area network tags of the service message that described user's access switch returns, send described service message to relevant user terminals.Wherein the corresponding different port of different business for example, the corresponding IPTV business of port one, port 2 corresponding IP telephone services or the like.
First order convergence switch 103, converge the service message that receives all user's access switch outputs in first presumptive area, be transmitted to second level convergence switch, receive the service message that second convergence switch issues simultaneously and return to the relative users access switch.
Second level convergence switch 104, be used to converge the service message of all first order convergence switch outputs in second presumptive area, on original virtual LAN VLAN label basis, encapsulate corresponding outer virtual local area network tags according to preset rules, outer layer label according to message sends described service message to Broadband Remote Access Server (BRAS) or business router (SR) respectively, and receiving the service message that described BRAS or SR return, the service message that will have an outer virtual local area network tags is separated to be honored as a queen and is handed down to corresponding first order convergence switch.
As one embodiment of the present of invention, described user terminal comprises: IPTV terminal, the networking telephone (VoIP) terminal, computer etc., the different business message of described initiation comprises: the IPTV service message that the IPTV terminal is initiated, the VoIP service message that the VoIP terminal is initiated, the Internet service message that computer is initiated etc.
As one embodiment of the present of invention, between described second level convergence switch 104 and described Broadband Remote Access Server (BRAS) or business router (SR), also comprise, third level convergence switch 105, be used to converge the service message of all second level convergence switches in one the 3rd presumptive area, send Broadband Remote Access Server (BRAS) or business router (SR) to, and receive the service message that described Broadband Remote Access Server (BRAS) or business router (SR) return, this service message is sent to corresponding second level convergence switch.
As one embodiment of the present of invention, described first presumptive area is meant, the territorial scope at least one village; Described second presumptive area is meant, the territorial scope at least one township, and the territorial scope in a wherein said township has comprised the territorial scope at least one village; Described the 3rd presumptive area is meant, the territorial scope at least one county, and the territorial scope in a wherein said county has comprised the territorial scope at least one township.
As one embodiment of the present of invention, adopt optical fiber to communicate between described access switch and the first order convergence switch, adopt optical fiber to communicate between described first order convergence switch and the second level convergence switch.
As one embodiment of the present of invention, described access switch is connected with optical fiber between the first order convergence switch and adopts optical-electrical converter as interface, and described first order convergence switch is connected the employing optical-electrical converter as interface with optical fiber between the convergence switch of the second level;
Perhaps described access switch is connected with optical fiber between the first order convergence switch and adopts optical interface, and described first order convergence switch is connected the employing optical interface with optical fiber between the convergence switch of the second level.
As one embodiment of the present of invention, employing standard five class Ethernet cables 5 class lines communicate between described access switch and the first order convergence switch.
Pass through the foregoing description, can be at the present national conditions of China, with the village is that unit sets first presumptive area, first order convergence switch is set, user terminal can directly not link to each other with the port of second level convergence switch, saved the port resource of second level convergence switch, and in reality, all performance and the price than first order convergence switch is high a lot of with price for the performance of second level convergence switch or third level convergence switch, can use the too much second level or third level convergence switch if adopt the system configuration of platypelloid type of the prior art (promptly directly using high performance convergence switch), cause the system construction price too expensive, and adopted the first order convergence switch in the system of the present invention that the service message that the different port of numerous at village level user terminals sends is converted to the message with different virtual LAN label, and send the service message that BRAS or AS return to different user terminal respectively, can reduce the implementation cost of whole system; And because first order convergence switch adopts optical fiber to be connected with second level convergence switch, first order convergence switch can adopt standard 5 class lines to be connected with access switch, can further reduce the cost of native system at bottom, because if there is not first order convergence switch, just access switch directly need be carried out optical fiber with second level convergence switch is connected, numerous access switch has taken the port resource of second level convergence switch, and has wasted too much fiber resource; And first order convergence switch is encapsulated in the virtual local area network tags of access switch within the unified virtual local area network tags, when receiving the multicast message of IPTV, can duplicate the multicast message of this IPTV to relevant user terminals by cross-VLAN.
Be illustrated in figure 2 as a kind of service message uplink method flow chart that is applied to the rural area network of the embodiment of the invention.
Comprise step 201, different virtual local area network tags on the different business message identification of user terminal initiation is sent to access switch.
As one embodiment of the present of invention, in the described step 202, the target virtual local area network tags is meant different virtual local area network tags, to distinguish the service message of different user terminals.
As one embodiment of the present of invention, also comprise among step 204: described second level convergence switch converges the service message of all described first order convergence switches in second presumptive area, send the service message after converging to third level convergence switch, described third level convergence switch converges the service message of all described second level convergence switches in the 3rd presumptive area, sends the service message after converging to Broadband Remote Access Server or business router.
As one embodiment of the present of invention, described first subscribes the zone is meant the territorial scope at least one village; Described second presumptive area is meant, the territorial scope at least one township, and the territorial scope in a wherein said township has comprised the territorial scope at least one village; Described the 3rd presumptive area is meant, the territorial scope at least one county, and the territorial scope in a wherein said county has comprised the territorial scope at least one township.
Be illustrated in figure 3 as a kind of service message down method flow chart that is applied to the rural area network of the embodiment of the invention.
Pass through the foregoing description, the inventive method can be passed through at second level convergence switch, it is the encapsulation that the township level convergence switch carries out virtual local area network tags, make and duplicating that multicast service messages such as IPTV can cross-VLAN send the different user terminals in the different virtual LAN to.
Be illustrated in figure 4 as the manage business embodiment flow chart of message of system of the present invention home gateway.
On home gateway, different business inserts the different port of home gateway respectively, by home gateway each port traffic stream is stamped different service VLAN labels, is 2 as business of networking VLAN label, IPTV service VLAN label is VLAN3, and VoIP service VLAN label is 4; And give every kind of service priority (cos value) that service identification is different, home gateway is dispatched by Different Strategies Business Stream according to the service priority sign, guarantee professional required bandwidth, as the first priority of VoIP Business Stream is transmitted, the IPTV business is taken second place and is done RSVP, and high speed Internet access business (HSI) is transmitted as possible.
Comprise step 401, user terminal is initiated service message.
Step 409 is carried out the scheduling of service message according to described priority.
Be illustrated in figure 5 as the manage business embodiment flow chart of message of system of the present invention access switch.
On access switch, mainly finish the VLAN label conversion when data flow exchanges between home gateway and the higher level's network, because home gateway is unified configuration according to Carrier Requirements to the VLAN and the priority of each service port when dispatching from the factory, the miscellaneous service of different user can't be distinguished at last layer switch, therefore need access switch that miscellaneous service is carried out the VLAN conversion according to type of service and predefined transformation rule, use different vlan tables to show different business.
Step 501 receives the service message that home gateway sends.
Step 502 is judged the port and the VLAN label that receive service message, if for port one VLAN label is 1, then enter step 503; If for port one VLAN label is 2, then enter step 504,, then enter step 505 if port is 3 for the 1VLAN label.All user terminals of each family (for example, set-top box, computer, the networking telephone etc.) connect home gateway respectively, home gateway only is connected with a port of access switch, to reach the purpose of saving the access switch port resource, a port of the corresponding access switch of the service message that all user terminals send in the one family, port one representative in this example all is the service message of sending out from the one family gateway, and which kind of service message the representative of VLAN label is.
Step 503 replaces with VLAN 1000 with the service message VLAN label 1 of this user terminal, with original VLAN 1 and the VLAN 1000 after replacing all be recorded in the map listing.
Step 504 replaces with VLAN 2000 with the service message VLAN label 0 of this user terminal, with original VLAN 2 and the VLAN 2000 after replacing all be recorded in the map listing.
Step 505 replaces with VLAN 3000 with the service message VLAN label 2 of this user terminal, with original VLAN 3 and the VLAN 3000 after replacing all be recorded in the map listing.
Step 506 is transmitted scheduling according to the priority of service message, and for example the service message that priority is big is more preferentially transmitted.
Be illustrated in figure 6 as the embodiment flow chart of system of the present invention second level convergence switch (township's node switch) message of managing business.
Before this township's node switch is handled, the visit to same multicast group that village's node switch sends access switch is directly carried out this locality and is transmitted, for example, receive the multicast request that access switch sends, relatively be present in the multicast list on the first order convergence switch, if had the user receiving the group business stream identical, then this multicast service is flowed to request user place port and duplicate with described multicast request at this first order convergence switch.For unicast service, first order convergence switch is directly transmitted.
Described township node switch, finish professional shunting, be that the multicast service message enters M-VLAN by the MVLAN technology, unicast service then carries out VLAN nested (QinQ) to be handled, stamp different outside VLAN labels for different Business Streams, the SR/BRAS equipment on upper strata just can accurately navigate to the different business of different villages node and family.
Step 601 receives the service message that first order convergence switch sends.
Step 602 judges that service message is clean culture or multicast, if clean culture then enters step 603, if multicast then enters step 604.
Step 603 gives different service message nested last different outer virtual local area network tags.
Step 604 is carried out the IGMP screening, selects the multicast service message, and wherein multicast service message group broadcasting program data flow does not comprise the adding multicast group, leaves control messages such as multicast group and checking multicast group.
Step 605, after described multicast service message is sent to second level convergence switch, second level convergence switch is according to the default M-VLAN and the mapping relations of user vlan, then the multicast vlan-label in this machine multicast Business Stream is replaced with the VLAN label in the multicast request message that the user submits to, realize multicast service flow issuing user port.For example second level convergence switch has disposed M-VLAN 2106, VLAN 1000 is configured to the Sub-VLAN of multicast V1AN 2106, second level convergence switch is downloaded whole group business streams by M-VLAN 2106 from SR, be 1000 user multicast request messages as the VLAN label that receives the submission of the first order convergence switch this moment, then the corresponding group business stream message VLAN label with user's request changes 1000 into by 2106, issues to first order convergence switch.
Step 606 is transmitted scheduling according to the priority of service message.
Step 607, the outgoing traffic message.
Second level convergence switch (township's node switch) receives the service message that described village node switch converges, and converges described service message, and the service message unification of different village's nodes is converged on the SR/BRAS.As preferred embodiment, between township's node switch and SR/BRAS, can also comprise county's node switch, be used to converge the service message that a plurality of townshiies node switch converges, send the service message that converges to SR/BRAS.
Described SR/BRAS finishes functions such as authentication and accounting, distributes different IP addresses for different user terminals according to QinQ VLAN, authorizes different authorities; Service quality technology (H-QoS) by stratification is unified Bandwidth Management, different business and different customer flows is dispatched etc.; By clean culture and multicast path by core net network with the service access correspondence.
Another example structure schematic diagram of system of the present invention as shown in Figure 7.
Village's node switch 703, adopt three layers to insert switching equipment, each village uses 1～2, by with the Layer 2 switch cascade of subordinate's access switch, can insert 400～500 users (user is that unit is corresponding one by one with home gateway with the family), be deployed in the geographic center in user village.
Township's node switch 704 adopts three layers and converges switching equipment, and 1～2 of each small towns configuration can insert 3000～5000 users, is deployed in township's central machine room.
SR/BRAS 705, are used to connect not fellow villager's node switch, and the service message that converges is communicated by letter with metropolitan area network.
When user terminal is initiated unicast service:
Wherein unicast service mainly comprises HSI, IPTV (program request) and three kinds of business of VoIP, and the flow process for each node processing unicast service in network is as follows:
User computer, IPTV set-top box and VoIP terminal are connected respectively to the different port of home gateway, priority that the different port configuration of home gateway is different and different VLAN, the every VLAN of promptly every business.
Access switch is finished the replacement of user vlan to customer service VLAN according to port information, wherein in the replacement process user vlan and the service VLAN of replacing is recorded in the mapping table, and realizes cut-in convergent.
Village's node switch converges the service message of all access switch in this village, and this service message is transmitted to township's node switch.
Township's node switch converges the service message of all village's node switch in this township, and the customer service VLAN of individual layer converted to double layer VLAN by the selective QinQ technology, inner VLAN identification customer service VLAN wherein, village's node that outer VLAN identification is different.
The BRAS/SR node is finished two layers of termination of unicast service, and functions such as authentication and accounting distribute different IP addresses for different home terminals according to QinQ VLAN, authorize different authorities, and are forwarded in the different core networks.
Table 1 is that each node is tabulated for the processing of clean culture in the present embodiment network
| Home gateway | The access point switch | Village's node switch | Township's node switch | BRAS/SR | |
| The 1-HSI of family | VLAN2 | VLAN1000 | VLAN：1000 | Outside VLAN: 512 inner VLAN: 1000 | IP:1.1.1.1 bandwidth: 2M |
| The 1-IPTV of family | VLAN3 | VLAN2000 | VLAN：2000 | Outside VLAN: 256 inner VLAN: 2000 | IP:2.1.1.1 bandwidth: 2M |
| The 1-VoIP of family | VLAN4 | VLAN3000 | VLAN：3000 | Outside VLAN: 2 inner VLAN: 3000 | IP:3.1.1.1 bandwidth: 64k |
| The 2-HSI of family | VLAN2 | VLAN1001 | VLAN：1001 | Outside VLAN: 512 inner VLAN: 1001 | IP:1.1.1.2 bandwidth: 2M |
| The 2-IPTV of family | VLAN3 | VLAN2001 | VLAN：2001 | Outside VLAN: 256 inner VLAN: 2001 | IP:2.1.1.2 bandwidth: 2M |
| The 2-VoIP of family | VLAN4 | VLAN3001 | VLAN：3001 | Outside VLAN: 2 inner VLAN: 3001 | IP:3.1.1.2 bandwidth: 64k |
Family 1 and 2 all belongs to same village node switch in the above form, if family 1 and family 2 do not belong to village's node switch management, then in the outside VLAN difference at township's node switch place.
When user terminal is initiated multicast service:
Multicast service mainly refers to the processing of IPTV live broadcast service data flow, and the flow process for each node processing multicast service in network is as follows:
The IPTV set-top box is connected to the corresponding port of home gateway, priority that the different port configuration of home gateway is different and different VLAN labels.
The access point switch is realized IGMP Snooping, according to the existing multicast forwarding list item of access switch filter user multicast request, if the group business stream of user's request is in the multicast forwarding list item, be that the group business stream that the user asks exists on this switch, then this group business stream is directly copied to IPTV user terminal place port (this multicast request can not be sent to village's node switch), if do not have described group business stream then to this group business stream of village's node switch request, finish the replacement of user vlan according to port information to customer service VLAN, wherein in the replacement process user vlan and the service VLAN of replacing is recorded in the mapping table, and realizes cut-in convergent.
Village's node switch is realized IGMP Snooping, according to the existing multicast forwarding list item of village's node switch filter user multicast request, if the group business stream of user's request is in the multicast forwarding list item, be that the group business stream that the user asks exists on this village's node switch, then this group business stream is directly copied to the port (this multicast request can not be sent to township's node switch) of access switch, if do not have described group business stream then to this group business stream of township's node switch request.
Township's node switch is realized IGMP Snooping, related according to vpn label and M-VLAN, the multicast request that village's node switch is submitted to issues to village's node switch according to the multicast forwarding list item (programme content stream) in this machine (township's node switch) M-VLAN, peel off the M-VLAN label of the outer encapsulation of service message, and carry out the travelling across VLAN multicast replication for the live service message of IPTV.Wherein, node switch encapsulation of being done in township's is to authenticate for core network or upper layer network.
The BRAS/SR node is realized the conversion of IGMP agreement to Protocol Independent Multicast (PIM) Routing Protocol, and realizes MVLAN copy function.
Table 2 is that each node is tabulated for the processing of multicast service in the present embodiment network
| Subscriber household | Access point | Village's node | Township's node | BRAS/SR | |
| Family | VLAN3 | VLAN2000 | VLAN2000 | MVLAN：4000 | IGMP-＞PIM |
| 1-IPTV | |||||
| The 2-IPTV of family | VLAN3 | VLAN2001 | VLAN2001 | MVLAN：4000 | IGMP-＞PIM |
Be illustrated in figure 8 as another example structure schematic diagram of system of the present invention.
In the present embodiment, 1 village's node switch 703 is set, up gigabit light mouth, descending 100,000,000 light mouths, near the access switch 702 in village inserting respectively for several villages (being first, second, the third three villages in this example) according to the geographical position.This networking mode is used as 1 large-scale village to adjacent several villages and is planned, can save the fiber resource of township's node switch 704 to village's node switch 703, reduce the opto-electronic conversion of optical fiber between village's node switch and the access switch, thereby reduce the fault of opto-electronic conversion, be applicable to that several adjacent village IPTV networked users reach the village that 300 families are above or permanent user 2000 families are above.Home gateway is 701 in this example.
The IPTV service message is forwarded to the ISP network from user's IPTV terminal, after township's node switch receives the multicast service message, adopt MVLAN travelling across VLAN copy mode that service message is arrived village's node switch by default service VLAN multicast forwarding, the outer virtual local area network tags that is about to the multicast service message is peeled off, and according to the virtual local area network tags of internal layer the multicast service message is sent to corresponding village node switch; Village's node switch copies to access switch to the multicast service message by IGMP Snoop mode again; Access switch according to VLAN mapping (VLAN Mapping) with the multicast message behind the IGMP Snooping by being issued to home gateway, the virtual local area network tags that is about to receive replaces with corresponding virtual local area network tags in the mapping table, according to the VLAN label of service message data flow is sent to user terminal under the different ports by home gateway, the IPTV set-top box is carried out video decode to the multicast service message that receives, and is reduced into the required video frequency program of user.
Wherein, adopt optical fiber to be connected between access switch and the village's node switch, village's node switch is connected with township's node switch employing optical fiber, and the connectivity port can adopt the light mouth directly to connect, and also can adopt the optical-electrical converter connection.Access switch can adopt optical fiber or standard ethernet five class cables to be connected with home gateway, and optical fiber wherein connects can adopt optical-electrical converter or light mouth.Described light mouth can adopt different bandwidth according to village node switch subordinate's user terminal quantity.
The beneficial effect of embodiments of the invention is, by in certain zone the relatively low village's node switch of performance being set, has saved the networking expense; Use optical fiber as the passage between the node, improved the speed and the capacity of existing IPTV network; And, reduced the operation risk that undernet causes because of abnormal flows such as loop, broadcast storms by outside VLAN label in the VLAN service message encapsulation of giving each user terminal on township's node switch; The township level convergence switch, has reduced the multicast service transmission trunk bandwidth has been wasted from SR receiving multicast business stream by the M-VLAN technology; The user filters (IGMP-SNOOPING) mode receiving group information flow by M-VLAN, multicast message under the at village level node switch, saved taking of at village level following device bandwidth, make more bandwidth can be used for value-added services such as high-speed Internet access, VOIP, improved the added value of network.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, can instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. network system that is applied to the rural area is characterized in that this system comprises:
Home gateway, dispose a plurality of ethernet ports, different business inserts the different port of described home gateway respectively, described home gateway sends to user's access switch with different virtual local area network tags on the different business message identification of described user terminal initiation, and discern the virtual local area network tags of the service message that described user's access switch returns, send described service message to relevant user terminals;
User's access switch, be used to converge the service message of the subscriber household gateway in the appointed area, carry out bi-directional conversion between the virtual LAN VLAN label of the service message of the port of different user terminals being transmitted according to default mapping relations and the target virtual local area network tags;
First order convergence switch converges the service message that receives all user's access switch outputs in first presumptive area, is transmitted to second level convergence switch, receives the service message that second convergence switch issues simultaneously and returns to the relative users access switch;
Second level convergence switch, be used to converge the service message of all first order convergence switch outputs in second presumptive area, on original virtual LAN VLAN label basis, encapsulate corresponding outer virtual local area network tags according to preset rules, outer layer label according to message sends described service message to Broadband Remote Access Server BRAS or business router SR respectively, and receiving the service message that described BRAS or SR return, the service message that will have an outer virtual local area network tags is separated to be honored as a queen and is handed down to corresponding first order convergence switch.
2. system according to claim 1 is characterized in that, a plurality of ethernet ports of described home gateway are assigned different priorities, and described home gateway is according to the flow of the different ethernet ports of priority assignment.
3. system according to claim 1, it is characterized in that, described user terminal comprises: personalized interactive TV IPTV set-top box, networking telephone VoIP terminal, computer, the different business message of described initiation comprises: the IPTV service message that the IPTV set-top box is initiated, the VoIP service message that the VoIP terminal is initiated, the Internet service message that computer is initiated.
4. system according to claim 1, it is characterized in that, between described second level convergence switch and described BRAS or SR, also comprise, third level convergence switch, be used to converge the service message of all second level convergence switch outputs in the 3rd presumptive area, send described BRAS or SR to, and receive the service message that described BRAS or SR return, this service message is sent to corresponding second level convergence switch.
5. system according to claim 4 is characterized in that, described first presumptive area is meant, the territorial scope at least one village; Described second presumptive area is meant, the territorial scope at least one township, and the territorial scope in a wherein said township has comprised the territorial scope at least one village; Described the 3rd presumptive area is meant, the territorial scope at least one county, and the territorial scope in a wherein said county has comprised the territorial scope at least one township.
6. system according to claim 1 is characterized in that, adopts optical fiber to communicate between described access switch and the first order convergence switch, adopts optical fiber to communicate between described first order convergence switch and the second level convergence switch.
7. system according to claim 6 is characterized in that, described access switch is connected with optical fiber between the first order convergence switch and adopts optical interface, and described first order convergence switch is connected the employing optical interface with optical fiber between the convergence switch of the second level.
8. system according to claim 7 is characterized in that, adopts standard ethernet five class cables to communicate between home gateway and the access switch.
9. service message uplink method that is applied to the rural area network is characterized in that this method comprises:
Different virtual local area network tags on the different business message identification of user terminal initiation is sent to user's access switch;
Access switch replaces with target virtual local area network tags with different user terminals with the virtual local area network tags in the service message of crossing the home gateway submission according to default mapping relations;
First order convergence switch is transmitted to second level convergence switch with the service message of all access switch outputs in first presumptive area;
Described second level convergence switch converges the service message of all described first order convergence switch outputs in second presumptive area, on original virtual LAN VLAN label basis, encapsulate corresponding outer virtual local area network tags according to preset rules, send described service message to Broadband Remote Access Server BRAS or business router SR respectively according to the outer layer label of message.
10. method according to claim 9, it is characterized in that, replace with in the target virtual local area network tags according to the virtual local area network tags of mapping relations with the service message of different user terminals at access switch, the target virtual local area network tags is meant the virtual local area network tags in order to the service message of distinguishing different user terminals.
11. method according to claim 9, it is characterized in that, also comprise after described second level convergence switch converges the service message of all described first order convergence switch outputs in second presumptive area: the service message after described second level convergence switch will converge sends third level convergence switch to, described third level convergence switch converges the service message of all described second level convergence switch outputs in the 3rd presumptive area, sends the service message after converging to Broadband Remote Access Server or business router.
12. method according to claim 11 is characterized in that, described first subscribes the zone is meant the territorial scope at least one village; Described second presumptive area is meant, the territorial scope at least one township, and the territorial scope in a wherein said township has comprised the territorial scope at least one village; Described the 3rd presumptive area is meant, the territorial scope at least one county, and the territorial scope in a wherein said county has comprised the territorial scope at least one township.
13. a service message down method that is applied to the rural area network is characterized in that this method comprises:
Second level convergence switch receives the service message that described BRAS or SR return, and the service message that will have an outer virtual local area network tags is separated to be honored as a queen and is handed down to corresponding first order convergence switch;
Described first order convergence switch receives the service message that described second convergence switch issues, and returns to the relative users access switch;
Described access switch replaces with the virtual local area network tags of relative users home gateway port according to mapping relations with the target virtual local area network tags of described service message, and message is transmitted to home gateway;
Described home gateway sends to described port corresponding user terminal according to virtual local area network tags with described service message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910259368A CN102104528B (en) | 2009-12-21 | 2009-12-21 | Network system applied in rural area and service message transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910259368A CN102104528B (en) | 2009-12-21 | 2009-12-21 | Network system applied in rural area and service message transmission method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102104528A true CN102104528A (en) | 2011-06-22 |
| CN102104528B CN102104528B (en) | 2012-10-10 |
Family
ID=44157069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910259368A Expired - Fee Related CN102104528B (en) | 2009-12-21 | 2009-12-21 | Network system applied in rural area and service message transmission method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102104528B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325074A (en) * | 2011-07-08 | 2012-01-18 | 清华大学 | Three-network convergence system |
| CN103457843A (en) * | 2012-05-30 | 2013-12-18 | 阿里巴巴集团控股有限公司 | Communication method, communication system, relay gateway device, application server and client side |
| CN106034061A (en) * | 2015-03-10 | 2016-10-19 | 中兴通讯股份有限公司 | Service uplink forwarding method, service downlink forwarding method, service uplink forwarding device and service downlink forwarding device |
| CN107040447A (en) * | 2017-05-18 | 2017-08-11 | 普联技术有限公司 | IPTV group network systems, forwarding unit and access point apparatus |
| CN107196793A (en) * | 2017-05-18 | 2017-09-22 | 普联技术有限公司 | IPTV group network systems, the first forwarding unit and access point apparatus |
| CN110022250A (en) * | 2018-01-10 | 2019-07-16 | 中兴通讯股份有限公司 | A kind of method for processing business, terminal and computer storage medium |
| CN113890823A (en) * | 2021-08-20 | 2022-01-04 | 长沙湘计海盾科技有限公司 | Automatic switch configuration method and medium for hierarchical topology |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100359885C (en) * | 2002-06-24 | 2008-01-02 | 武汉烽火网络有限责任公司 | Method for forwarding data by strategic stream mode and data forwarding equipment |
| JP4120356B2 (en) * | 2002-11-05 | 2008-07-16 | 日本電気株式会社 | Extended VLAN tag SWAP method |
| CN101022394B (en) * | 2007-04-06 | 2010-05-26 | 杭州华三通信技术有限公司 | Method for realizing virtual local network aggregating and converging exchanger |
-
2009
- 2009-12-21 CN CN200910259368A patent/CN102104528B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325074A (en) * | 2011-07-08 | 2012-01-18 | 清华大学 | Three-network convergence system |
| CN103457843A (en) * | 2012-05-30 | 2013-12-18 | 阿里巴巴集团控股有限公司 | Communication method, communication system, relay gateway device, application server and client side |
| CN106034061A (en) * | 2015-03-10 | 2016-10-19 | 中兴通讯股份有限公司 | Service uplink forwarding method, service downlink forwarding method, service uplink forwarding device and service downlink forwarding device |
| CN107040447A (en) * | 2017-05-18 | 2017-08-11 | 普联技术有限公司 | IPTV group network systems, forwarding unit and access point apparatus |
| CN107196793A (en) * | 2017-05-18 | 2017-09-22 | 普联技术有限公司 | IPTV group network systems, the first forwarding unit and access point apparatus |
| CN107040447B (en) * | 2017-05-18 | 2019-11-29 | 普联技术有限公司 | IPTV group network system, forwarding device and access point apparatus |
| CN107196793B (en) * | 2017-05-18 | 2019-12-17 | 普联技术有限公司 | IPTV networking system, first forwarding equipment and access point equipment |
| CN110022250A (en) * | 2018-01-10 | 2019-07-16 | 中兴通讯股份有限公司 | A kind of method for processing business, terminal and computer storage medium |
| CN113890823A (en) * | 2021-08-20 | 2022-01-04 | 长沙湘计海盾科技有限公司 | Automatic switch configuration method and medium for hierarchical topology |
| CN113890823B (en) * | 2021-08-20 | 2023-08-25 | 长沙湘计海盾科技有限公司 | Automatic configuration method and medium for switch of hierarchical topology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102104528B (en) | 2012-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102104528B (en) | Network system applied in rural area and service message transmission method | |
| CN100464532C (en) | Method system and data structure for multimedia communications | |
| CN101882960B (en) | Point-to-multi-point two-way optical fiber coaxial mixed full-service broadband access system | |
| CN100461732C (en) | Ethernet technology switching and forwarding method, system and equipment | |
| CN100544302C (en) | Polymerizing method for two layer multicast virtual local area network and convergence switch thereof | |
| CN101258712B (en) | Method and device for facilitating differentiated service qualities in an Ethernet passive optical network | |
| CN100384124C (en) | Method and system for providing LAN access user with network TV service | |
| CN101335708B (en) | Packet forwarding method and operator edge converging equipment | |
| CN1866919B (en) | Service switching method based on VLAN stack | |
| CN100525227C (en) | Method for implementing integrated service access of access network | |
| CN100377548C (en) | Method and device for realizing virtual exchange | |
| CN100568822C (en) | A kind of graphical display method for service topology based on Resilient Packet Ring | |
| CN103765917A (en) | A method of providing end-to-end connection in a unified optical and coaxial network | |
| CN101242674A (en) | An integrated service access system based on EPON and dual-mode STB | |
| CN104469535B (en) | A kind of method and device of the INVENTIONBroadcast video IPization based on C-DOCSIS systems | |
| CN101594243A (en) | A kind of multicast spanning virtual local area networks implementation method based on optical network unit | |
| CN103701679B (en) | A kind of method for realizing VLAN conversions | |
| CN102227137A (en) | Network digital set top box and method for realizing multiple network access | |
| CN100442761C (en) | Transmission method and process device of Ethernet service signal in wave division duplex network | |
| CN100539529C (en) | The communication system of share of access network and carry out the method for service message interaction | |
| CN100377549C (en) | Method for retransmitting data frame by data retransmitting entity | |
| CN106789921A (en) | A kind of exchange method and interchanger for supporting that member port is isolated in VLAN | |
| CN102611591A (en) | Hybrid fiber-coax accessing system capable of replacing ONU (Optical Network Unit) | |
| CN207218744U (en) | Multimedia network data processing system | |
| CN110392272A (en) | Home gateway realizes live telecast, the method in broadband and program request simultaneous transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20201221 |